Planning report · Dun Laoghaire-Rathdown County Council · 500 m around the house · the last 12 months · 5 Nov 2026, 10:12

Sydney Avenue

53.29909, -6.18321

Homes here mostly date from 1919–1945. Home extensions nearby almost always get approved (98%). 98 homes approved 224 m away haven't started.

See on the map Watch this area

Distance

250 m 500 m 1 km 2 km

Time

12 months 2 years 5 years

98%of home extensions approved nearbyn=405 · 1.5 km · 10 yrs 51 daystypical wait for a decisionmiddle half 49–54 3open for comments nearbyclose 9 Nov–16 Nov 98homes approved nearby, not startednearest 224 m · D21A/0996

How planning works, with this area's numbers

steps can overlap · medians for home extensions within 1.5 km, 10 years

1ApplySite notice up, plans online
2Comments5 weeks, €20. Comment to keep your right to appeal
3Decision8 weeks by law. Here 51 days
4Appeal window4 weeks after the decision
5AppealHere about 4 months
6PermissionLasts 5 years
7StartStart notice to the council. Here about 6 months after
8Sign-offCompletion cert, or the owner opts out

Question 1

What's the planning story of this house?

Figure 1

When it was built, and the rules since

Most homes here were built 1919–45, before planning permission was needed.

Each line is a rule that applies to work done after it.

MeasuredEstimatecouncil register via NPAD · build years: CSO Census 2022, small area

On this site

Zoning · Existing residential

Yes

Protected or listed · a protected building (House Terrace); in a conservation area (Sydney Avenue, Blackrock)

Vacant land tax · lived-in homes don't pay it

1 in 20

Radon (EPA) · homes with high radon

Zoning, protection, tax and flood: the detail

ZoningR2 · Existing residential

What it says

Objective A: A To provide residential development and improve residential amenity while protecting the existing residential amenities

An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.

county development plan 2022 2028 · 1 Apr 2022 – 1 Apr 2028

ZoningR2 · Existing residential

What it says

Objective A: A To provide residential development and improve residential amenity while protecting the existing residential amenities

d n laoghaire rathdown county development plan 2022 2028 variation no 1 · 21 Apr 2022 – 20 Apr 2028

Protected buildingOn this site House Terrace; House Terrace

Conservation areaOn this site Sydney Avenue, Blackrock

Radon1 in 20 homes have high radon (EPA)

Not on this site: heritage inventory, monument zone, EU nature site, EU bird site, natural heritage area, tree order, landslide risk, derelict list.

Vacant land taxNo lived-in homes don't pay it

Flood riskNearby OPW map area within 500 m · floodinfo.ie

Within 500 m	Count	For example
Conservation areas	3	Blackrock Village; Sydney Avenue, Blackrock
Radon grid squares	3
Protected buildings	186	Blackrock Railway Station; Lios an Uisce
Monuments	2	Cross; R149443

How we work this out

'On this site' means the record's own map outline touches the registered parcel (or a 12 m circle round the point where there is no parcel). Only the council's own list confirms a protected building; ask the council if in doubt. The council's map for the vacant land tax shows this spot inside an area of existing homes. Homes people live in, and their gardens, don't pay the tax. The OPW flood map's licence lets us show a yes/no only. Land on the vacant land tax map nearby: 1 on the draft 2027 map; 1 on the final 2026 map.

Sources: Development plan zoning (councils), Architectural Conservation Areas, EPA radon map, Records of Protected Structures, Residential Zoned Land Tax maps, Constraint layers (bundle), OPW flood maps (CFRAM), Sites and Monuments Record · fetched 1 Nov 2026, 23:58

Source	Licence	Fetched	Link
Development plan zoning (councils)	CC BY 4.0	1 Nov 2026, 23:13	open
Architectural Conservation Areas	CC BY 4.0	27 Sept 2026, 19:36	open
EPA radon map	CC BY 4.0	27 Sept 2026, 19:36	open
Records of Protected Structures	CC BY 4.0	27 Sept 2026, 19:36	open
Residential Zoned Land Tax maps	CC BY 4.0	1 Nov 2026, 23:58	open
Constraint layers (bundle)	CC BY 4.0, CC BY-NC-ND 4.0	27 Sept 2026, 19:37	open
OPW flood maps (CFRAM)	CC BY-NC-ND 4.0 · shown as a yes/no only	11 Sept 2026, 19:11	open
Sites and Monuments Record	CC BY 4.0	27 Sept 2026, 19:29	open

How we work this out

Applications whose site outline (or map point) falls on this property. 'No sign building has started' means we found no notice to the council's building control office; small jobs don't always file one, so ask. A missing completion certificate is not proof of a problem: an owner can opt out of official sign-off for a house or extension built for themselves.

Sources: Building Control Management System (commencement notices), National Planning Application Database · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
Building Control Management System (commencement notices)	CC BY 4.0	5 Nov 2026, 03:55	open
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open

Question 2

Could you extend?

This is a protected building: almost any change, inside or out, needs permission.

Figure 2

What happened to applications like yours

Extensions are almost always approved here: 96–100% by type. A new house in a garden is harder: 70% approved, and 1 in 6 is asked for more information.

Single-storey rear82 decided · more info asked 10%

100% · council 96%

Two-storey rear46 decided · more info asked 11%

96% · council 92%

Two-storey side16 decided · more info asked 6%

100% · council 95%

Single-storey side13 decided · more info asked 0%

100% · council 96%

Attic or dormer124 decided · more info asked 8%

96% · council 94%

First-floor17 decided · more info asked 12%

100% · council 90%

Garage conversion18 decided · more info asked 6%

100% · council 99%

Porch or front16 decided · more info asked 0%

100% · council 98%

New house in a garden or site30 decided · more info asked 17%

70% · council 63%

Approved nearbyDún Laoghaire-Rathdown overall

Decided applications within 1.5 km, received in the last 10 years. The kind of work is read from each description.

CalculatedOur classificationcouncil register via NPAD · 362 nearby, 3,892 council-wide

Figure 3

Sydney Avenue, file by file since 2022

3 of 3 decided extensions on the road were approved.

ApprovedRefusedWithdrawn or invalid

8 files with "Sydney Avenue" in the address within 600 m, other roads of the same name left out. Hover a dot for the house number and reference.

MeasuredOur classificationcouncil register via NPAD · 2022–2026

Extensions and refusals right beside you 3 within 250 m · 0 refused within 100 m

Extensions and refusals near you 3 extensions within 250 m · the last 12 months

1 approved2 no decision or withdrawn

Kind	Applied	Approved	Refused
Single-storey rear	2	1	—
Dormer or attic	1	0	—

Refused within 100 m 0 in the last 12 months

Nothing refused this close in the last 12 months.

How we work this out

Home extensions are read from the application's description (extension, attic or dormer, porch, garage conversion, garden room), so a few may be missed or mislabelled. The kind is the first that fits: a dormer with a rear extension counts as a dormer. Refusal reasons come from An Coimisiún Pleanála's inspector reports, so they exist only where the refusal was appealed (Dún Laoghaire-Rathdown so far). The council's own reasons are on its planning file.

Sources: National Planning Application Database, An Coimisiún Pleanála cases (ArcGIS feed) · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	30 Oct 2026, 23:01	open

Sources: An Coimisiún Pleanála cases (ArcGIS feed), Building Control Management System (commencement notices), National Planning Application Database · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	30 Oct 2026, 23:01	open
Building Control Management System (commencement notices)	CC BY 4.0	5 Nov 2026, 03:55	open
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open

Question 3

How long, and what if someone objects?

Figure 4

A home extension's journey here

A decision takes 51 days. 1 in 10 is asked for more information, which adds about 61 days. Building starts about 6 months after permission.

Bars are medians; whiskers show the middle half. Medians of separate steps don't add up exactly.

Calculated405 decided home extensions, 191 start notices, 81 decided appeals · within 1.5 km, 10 years · NPAD, BCMS, An Coimisiún Pleanála

Figure 5

What appeals changed

12 of 33 appealed refusals became permissions. 6 of 51 appealed approvals were reversed.

Refusals appealed33 decided

12 became permissions

Approvals appealed51 decided

6 reversed

Ended approvedEnded refusedWithdrawn, invalid or other

Every appeal decided within 1.5 km in 10 years, any kind of development.

CalculatedAn Coimisiún Pleanála cases linked to the council file

Appeals nearby 6 in the last 12 months

None of 2 changed the council's decision

501719 Pending · 9-11, Rock Hill, Blackrock, Dublin, A94P5C7 · 455 m
501674 Pending · 5, Mount Merrion Avenue, Blackrock, Dublin, A94W9P2 (Protected… · 329 m
500969 Refused · Land to the rear of, Carysfort House, Carysfort Avenue, Blackrock,… · 488 m report
324043 Granted with conditions · In the townland of Merrion, Chesterfield, Cross Avenue, Blackrock,… · 399 m report
501341 Invalid · 1, Brusna Cottages, Blackrock, Co. Dublin (ACA) · 420 m
324038 Invalid · In the townland of Merrion, Chesterfield, Cross Avenue, Blackrock,… · 399 m

Sources: An Coimisiún Pleanála cases (ArcGIS feed), Courts Service legal diary (judicial reviews), National Planning Application Database · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	30 Oct 2026, 23:01	open
Courts Service legal diary (judicial reviews)	© the publisher	4 Nov 2026, 23:17	open
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open

Question 4

What's changing around you?

Street map around Sydney Avenue with 15 numbered planning items — ⌖ the houseOpen for commentsWindow closingDerelict buildingApproved, not startedBuilding startedOtherApprovedNo decision yet

1Lands at and between, Carrickmines 220kV Substation D26A/0763/WEBNo decision yet · 199 m
233 Waltham Terrace, Blackrock D26A/0740/WEBNo decision yet · 354 m
320 Sweetman's Avenue, Blackrock D26A/0757/WEBNo decision yet · 427 m
44, Anglesea Avenue D26B/0463/WEBNo decision yet · 178 m
5DERELICT, WAVERLY LODGE DS: 1696Derelict building · 179 m
6Frascati Centre D21A/0996Approved, no sign building has started · 224 m
76 Anglesea Avenue, Blackrock D25B/0096/WEBBuilding started · 177 m
8Frascati Shopping Centre, Frascati Road D25A/0073/WEBBuilding started · 192 m
9Site to the rear of 39 Georges Avenue, Blackrock V/093/25Section 5: exempt · 13 m
1065, Carysfort Avenue D26A/0308/WEBApproved · 194 m
11Presbyterian Church, Saint Andrew's Church REF13126Section 5: needs permission · 217 m
1223 Green Road, Blackrock D26A/0616/WEBApproved · 221 m
1386 Carysfort Avenue, Blackrock D26A/0612/WEBApproved · 228 m
1448, Sydney Avenue D25A/1002/WEBApproved · 238 m
15Rear of No. 4 Prince Edward Terrace Lower, Carysfort Avenue & fronting to Brookfield Terrace D26A/0337/WEBNo decision yet · 324 m

Figure 6

What happens to applications within 500 m

Permission isn't building. Of 154 permissions since 2016, 71 show a start notice and 15 have a completion certificate.

Purple bands are refusals turned into permissions on appeal. "No start notice found" includes small jobs that never needed one and notices we couldn't match.

Measured208 applications in 10 years · NPAD, An Coimisiún Pleanála, BCMS start notices and completion certificates

Figure 7

The next 30 days

4 deadlines within 500 m; the first closes 9 Nov 2026.

Comments closeTime to appeal ends

Comments close 9 Nov 20264 days left
2D26A/0740/WEB · application received — Permission is sought for the restoration and refurbishment of the existing semi-
€20 to the council · 354 m away
Time to appeal ends 9 Nov 20264 days left
4D26B/0463/WEB · REQUEST ADDITIONAL INFORMATION — The development will consist of the construction of a single storey extension t
€220 to An Coimisiún Pleanála (€110 observer) · 178 m away
Comments close 13 Nov 20268 days left
3D26A/0757/WEB · application received — The proposed development will consist of: • Construction of a first floor extens
€20 to the council · 427 m away
Comments close 16 Nov 202611 days left
1D26A/0763/WEB · application received — The development will consist of the provision of: a c. 7.03km underground cable
€20 to the council · 199 m away

Measuredcouncil registers and An Coimisiún Pleanála · deadlines worked out from the dates on file

Figure 8

Approved, stalled or planned, not built yet

98 homes 224 m away were approved May 2023 with no start notice yet; the permission runs to May 2028. BusConnects Core Bus Corridors is planned 268 m away.

Each row is a dated fact from a public register: no score and no forecast.

Measuredcouncil registers, BCMS, derelict sites registers, development plan layers (CC BY 4.0)

Sites that could change 2 within 500 m

Derelict building 1

5DERELICT, WAVERLY LODGE · listed as derelict · 179 m

Approved, not started 1

Frascati Centre · 98 homes approved May 2023, not started · 224 m

Sources: An Coimisiún Pleanála cases (ArcGIS feed), Building Control Management System (commencement notices), Derelict sites registers, Council meetings (ModernGov), National Planning Application Database, Residential Zoned Land Tax maps · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	30 Oct 2026, 23:01	open
Building Control Management System (commencement notices)	CC BY 4.0	5 Nov 2026, 03:55	open
Derelict sites registers	CC BY 4.0	2 Nov 2026, 23:17	open
Council meetings (ModernGov)	Public	5 Nov 2026, 02:33	open
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open
Residential Zoned Land Tax maps	CC BY 4.0	1 Nov 2026, 23:58	open

Figure 9

Applications within 500 m, by year

Between 28 and 40 a year; busiest 2024. 89% of decisions were approvals.

ApprovedRefusedWithdrawn or invalidUndecided

2021 and 2026 are part years (*). Exemption requests and time extensions are left out.

Measuredcouncil register via NPAD

Open for comments €20 to comment

233 Waltham Terrace, Blackrock, Co. Dublin, A94A3W7 (A Protected Structure) comments close 9 Nov 2026
Permission is sought for the restoration and refurbishment of the existing semi-
D26A/0740/WEB5 Oct 2026354 m
320 Sweetman's Avenue, Blackrock, Co. Dublin, A94D9X6 comments close 13 Nov 2026
The proposed development will consist of: • Construction of a first floor extens
D26A/0757/WEB9 Oct 2026427 m
1Lands at and between, Carrickmines 220kV Substation, Ballyogan Road, Dublin 18, D18 X0D0 and,, Blackrock Park, Blackrock Park, Rock Road, Blackrock, Dublin.A94HWF6 comments close 16 Nov 2026
The development will consist of the provision of: a c. 7.03km underground cable
D26A/0763/WEB12 Oct 2026199 m

Every application within 500 m 31 in the last 12 months

See every application on the map

11Presbyterian Church, Saint Andrew's Church, Mount Merrion Avenue, Blackrock, DUBLIN, A94P309 (A Protected Structure) Section 5: needs permission
Installation of four stainless steel Sheffield-style bicycle stands outside the
REF1312611 Sept 2026217 m
44, Anglesea Avenue, Blackrock, Co. Dublin, A94D8P0 No decision yet
The development will consist of the construction of a single storey extension t
D26B/0463/WEB12 Oct 2026178 m
1223 Green Road, Blackrock, Co. Dublin, A94 A0K8 Approved
Widening of the existing front pedestrian entrance gateway up to a maximum widt
D26A/0616/WEB7 Oct 2026221 m
1386 Carysfort Avenue, Blackrock, Co. Dublin, A94HE92 Approved
The development will consists of: revise permitted development approved under P
D26A/0612/WEB7 Oct 2026228 m
86, Carysfort Avenue, Blackrock, Co. Dublin, A94HE92 Withdrawn or not valid
The development will consists of: revise permitted development approved under P
D26A/0609/WEB13 Aug 2026228 m
86, Carysfort Avenue, Blackrock, Co. Dublin, A94HE92 Withdrawn or not valid
The development will consists of: revise permitted development approved under P
D26A/0598/WEB12 Aug 2026228 m
Peafield Mews, Ben Inagh Park, Blackrock, Co. Dublin, A94F7Y5 Approved
-Construction of new single storey extension to the side at first floor level.
D26B/0414/WEB10 Sept 2026390 m
Frascati Centre, Frascati Road (N31), Blackrock, Co. Dublin, A94V2C6 Approved
The proposal relates to the extension of existing Retail Unit D2, located at gro
D26A/0439/WEB31 Jul 2026167 m
National Mobility Hubs Pilot: Dún Laoghaire-Rathdown, 73 Locations Across the Council's Administrative Area, Dún Laoghaire-Rathdown No decision yet
73 mobility hub sites across the Council's administrative area
PC/IC/01/2622 May 2026324 m
37 Main Street, Blackrock, Co. Dublin, A94 XD37 Approved
Permission is sought for the change of use from restaurant to beauty salon, use
D26A/0345/WEB29 Jun 2026424 m
23 Green Road, Blackrock, Co. Dublin, A94 A0K8 Refused
Widening of the existing front pedestrian entrance gateway up to a maximum widt
D26A/0344/WEB29 Jun 2026221 m
15Rear of No. 4 Prince Edward Terrace Lower, Carysfort Avenue & fronting to Brookfield Terrace, Blackrock, Co. Dublin - a Protected Structure No decision yet
Construction of 2 no. two-storey semi-detached dwellings with off-street parking
D26A/0337/WEB5 May 2026324 m
Blackrock Private Hospital, Blackrock Clinic, Rock Road, Blackrock, Dublin, A94E4X7 No decision yet
Planning permission for development at this site of c.1.1 ha at “St Catherine’s”
D26A/0334/WEB1 May 2026450 m
37 Main Street, Blackrock, Co Dublin, A94XD37 Withdrawn or not valid
Permission is sought for the change of use from restaurant to beauty salon, use
D26A/0329/WEB1 May 2026424 m
Rear of No. 4 Prince Edward Terrace Lower, Carysfort Avenue & fronting to Brookfield Terrace, Blackrock, Co Dublin Withdrawn or not valid
Construction of 2 no. two-storey semi-detached dwellings with off-street parking
D26A/0314/WEB28 Apr 2026324 m
1065, Carysfort Avenue, Newtown Blackrock, Blackrock, Co. Dublin, A94P5Y6 Approved
The repositioning of the existing front vehicular entrance to facilitate improv
D26A/0308/WEB15 Jun 2026194 m
5, Mount Merrion Avenue, Blackrock, Dublin, A94W9P2 (Protected Structure) Approved
The development will consist of: 1. Formation of a car port to the end of the re
D26A/0302/WEB10 Jun 2026329 m
Rear of 4, Prince Edward Terrace Lower (4A & 4B Brookfield Terrace) Blackrock, Dublin Section 5: exempt
2 Units
V/031/2630 Apr 2026324 m
1, Brusna Cottages, Blackrock, Co. Dublin (ACA) Refused
The development will consist of the retention timber screening at the boundary o
D26A/0130/WEB16 Apr 2026420 m
1448, Sydney Avenue, Blackrock, Dublin, A94D2T0 Approved
The development will consist of the following: 1. Retention permission for remov
D25A/1002/WEB24 Feb 2026238 m
Land to the rear of Carysfort House and fronting Brookfield Terrace, Blackrock, Co. DUBLIN Section 5: exempt
1 unit
V/095/2515 Jan 2026488 m
Land to the rear of, Carysfort House, Carysfort Avenue, Blackrock, Dublin, A94T2D5 Refused
The development consists of: (A) The construction of a two storey detached two b
D25A/0958/WEB12 Feb 2026488 m
9Site to the rear of 39 Georges Avenue, Blackrock, Co.Dublin Section 5: exempt
3 units
V/093/2515 Dec 202513 m
54, Barclay Court, Blackrock, Dublin, A94K3C6 No decision yet
Full planning permission for the following to the existing fully serviced detach
D25B/0676/WEB4 Dec 2025402 m
0.08 hectare site to the rear of, 39 Georges Avenue, Blackrock, Co.Dublin, A94C529 Approved
1) Demolition of existing single storey warehouse/manufacturing units within the
D25A/0927/WEB17 Jun 202613 m
0.08 hectare site to the rear Of 39, Georges Avenue, Blackrock, Co. Dublin, A94C529 Withdrawn or not valid
1.Demolition of existing single storey warehouse/manufacturing units within the
D25A/0915/WEB1 Dec 202513 m
Tropical Medical Bureau, 3 Bath Place, Blackrock, Dublin, A94R3K7 Approved
Retention permission for change of use from office to medical facility at first
D25A/0898/WEB28 Jan 2026478 m
24, Idrone Terrace, Blackrock, Dublin, A94TK53 (A protected Structure) Approved
The development will consist of the following works to the two-storey over basem
D25A/0872/WEB20 Jan 2026498 m

How we work this out

Descriptions are shortened by the national planning database (to 80 characters in Dún Laoghaire-Rathdown, 70 in Fingal), and it does not publish applicants' names.

Sources: National Planning Application Database, An Coimisiún Pleanála cases (ArcGIS feed), Building Control Management System (commencement notices) · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	30 Oct 2026, 23:01	open
Building Control Management System (commencement notices)	CC BY 4.0	5 Nov 2026, 03:55	open

Building work nearby 16 in the last 12 months

3 signed off as finished6 not signed off7 no sign-off needed

Normal Unit No. D2, Frascati Centre, Frascati Road, Blackrock, Dublin, A94 Y2W6 · 26 Oct 2026 · 7-day notice not signed off · P/1560/26 · 215 m
8Frascati Shopping Centre, Frascati Road, Blackrock, Dublin · 24 Sept 2026 · 7-day notice not signed off · D25A/0073/WEB · 192 m
37 Main Street, Blackrock, Dublin, A94 X0P4 · 3 Sept 2026 · 7-day notice not signed off · D26A/0345/WEB · 443 m
12 Brookfield Avenue, Blackrock, Dublin, A94 WN67 · 10 Aug 2026 · 1 homes · short notice no sign-off needed · D25A/0758/WEB · 299 m
7 George's Avenue, Blackrock, Dublin · 21 Jul 2026 · 7-day notice not signed off · D25A/0352/WEB · 407 m
76 Anglesea Avenue, Blackrock, Dún Laoghaire-Rathdown, A94 F4E4 · 2 Jun 2026 · 1 homes · short notice no sign-off needed · D25B/0096/WEB · 177 m
Blackrock Shopping Centre, Rock Hill, Blackrock, Co. Dublin, Blackrock, Dún Laoghaire-Rathdown, A94 C2N7 · 13 Apr 2026 · short notice no sign-off needed · D24A/0800/WEB · 456 m
54 Waltham Terrace, Blackrock, Dún Laoghaire-Rathdown, A94 X7V0 · 24 Mar 2026 · 1 homes · start notice, opted out no sign-off needed · D25B/0519/WEB · 493 m
14 Idrone Lane, Blackrock, Dún Laoghaire-Rathdown, A94 ED35 · 12 Mar 2026 · 1 homes · 7-day notice not signed off · SI75 EXEMPT. SA/60058 · 488 m
16 Green Road, Blackrock, Dublin · 6 Mar 2026 · start notice, opted out no sign-off needed · D25B/0363 · 163 m
23 Brooklawn, Blackrock, Dún Laoghaire-Rathdown · 10 Feb 2026 · 1 homes · start notice, opted out no sign-off needed · D25A/0432 · 302 m
21A Sydney Avenue, Dublin, Dún Laoghaire-Rathdown, A94 EW74 · 28 Jan 2026 · 1 homes · start notice, opted out no sign-off needed · D25A/0144/WEB · 38 m
Unit G01 Frascati SC Blackrock, Dublin, Dun Laoghaire Rathdwon, Dublin, Dún Laoghaire-Rathdown, A94 V0T0 · 22 Jan 2026 · start notice signed off · D24A/0262/WEB · 289 m
Unit D3, Frascati SC, Blackrock, Dublin, Dun Laoghaire Rathdown, Dublin, Dún Laoghaire-Rathdown, A94 V0T0 · 5 Jan 2026 · start notice signed off · 21A/0468 · 289 m
Unit 3 /6 Rock Hill Blackrock Village Centre, Blackrock village, Dún Laoghaire-Rathdown, A94 TK22 · 18 Dec 2025 · 7-day notice not signed off · D22A/0268 · 397 m
Unit G29 Frascati SC Blackrock, Dublin, Dunlaoghaire Rathdown, Dublin, Dún Laoghaire-Rathdown, A94 Y2W6 · 3 Dec 2025 · start notice signed off · 296 m

How we work this out

Each row is a notice the builder sent to the council's building control office before work started. One notice can cover many homes. 'Signed off as finished' means a completion certificate is on file; work done under an opt-out or a short notice doesn't need one.

Source: Building Control Management System (commencement notices) · fetched 5 Nov 2026, 03:55

Source	Licence	Fetched	Link
Building Control Management System (commencement notices)	CC BY 4.0	5 Nov 2026, 03:55	open

Homes coming 98 not started

6Frascati Centre · 98 homes · not started · runs out 30 May 2028 · 224 m
Frascati Centre · 41 homes · building started · 224 m

Alto Apartments, Frascati Centre, Blackrock, Co. Dublin (Phase 1)* · Completed · 3 homes · 380 m
Crofters Quarter, Deansgrange Road, Deansgrange, Blackrock, Co. Dublin (Phase 1)* · Completed · 120 homes · 380 m

How we work this out

Schemes of 10 or more homes approved since 2021, from the council and An Coimisiún Pleanála registers. 'Building started' means the builder told the council's building control office that work was starting (a commencement notice).

Sources: An Coimisiún Pleanála cases (ArcGIS feed), Building Control Management System (commencement notices), National Planning Application Database, Social housing construction status report · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	30 Oct 2026, 23:01	open
Building Control Management System (commencement notices)	CC BY 4.0	5 Nov 2026, 03:55	open
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open
Social housing construction status report	CC BY-SA 4.0	23 Oct 2026, 23:02	open

Named places nearby: estate, schemes, crèches, schools

Named places estate, developments, inspections

Developments within 1.0 km

Scheme	Homes	Progress	Distance
Frascati Centre	82	82 not started (2026-Q2)	123 m
Merrion	—	—	399 m
Merrion at	—	—	399 m
Cross Avenue	246	246 built (2025-Q1)	537 m
4.56 ha at St. Teresa's House and St. Teresa's Lodge	291	291 not started (2026-Q2)	548 m
Temple Hill and Temple Road	—	—	549 m
3.9 ha at ‘St. Teresa’s House’ and ‘St. Teresa’s Lodge’ Temp	—	—	549 m
Chesterfield	33	33 not started (2025-Q2)	888 m

Crèches and schools inspected

Name	Latest inspection	Distance
Coco's Creche & Montessori · Crèche	15 May 2026 · report · Tusla Early Years Inspectorate	163 m
Blackrock Community Playgroup · Crèche	7 Dec 2023 · report · Tusla Early Years Inspectorate	518 m
Little Apples Academy · Crèche	25 Aug 2025 · report · Tusla Early Years Inspectorate	540 m
Our World Montessori Ltd. · Crèche	29 Apr 2026 · report · Tusla Early Years Inspectorate	825 m
Simbas Childcare Limited · Crèche	27 May 2024 · report · Tusla Early Years Inspectorate	945 m
Coco's Childcare · Crèche	26 Feb 2026 · report · Tusla Early Years Inspectorate	964 m

How we work this out

Organisations only: a person named on an application is never listed. Inspection dates and links are the publisher's; read their report for the findings.

Sources: Dublin housing delivery pipeline, National Planning Application Database, Department of Education school list, Tusla early years register · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
Dublin housing delivery pipeline	CC BY 4.0	2 Nov 2026, 23:01	open
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open
Department of Education school list	CC BY 4.0	27 Oct 2026, 23:04	open
Tusla early years register	Public register	4 Nov 2026, 23:36	open

How busy is this area Busier than most of Dún Laoghaire-Rathdown County Council.

Homes approved

Here750

Council middle33

Homes started

Here139

Council middle81

How we work this out

Homes approved counts schemes of 10 or more homes (one-off houses are not included). Homes started counts every home in a notice that building work was starting. The council figure is the middle value across the council's built-up squares of the same area (3.1 km², about a 1 km circle), so half of them saw more and half fewer.

Sources: An Coimisiún Pleanála cases (ArcGIS feed), Building Control Management System (commencement notices), National Planning Application Database · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	30 Oct 2026, 23:01	open
Building Control Management System (commencement notices)	CC BY 4.0	5 Nov 2026, 03:55	open
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open

Question 5

What's the area like?

Figure 10

This street block against the council

68% of homes built before 1971 (council 38%). 69% owner-occupied (council 68%).

Homes built before 1971

68% · council 38%

Homes built since 2001

5% · council 25%

Owner-occupied

69% · council 68%

Rented

23% · council 29%

Children under 15

21% · council 18%

Aged 65 and over

15% · council 17%

Households with 2+ cars

29% · council 39%

Work mainly from home

22% · council 19%

This small area (322 people)Dún Laoghaire-Rathdown

MeasuredCSO Census 2022, Small Area Population Statistics (CC BY 4.0) · small area 267021007

Bus

233 m

Carysfort Avenue · 114, L26 · busiest stop within 500 m: 14 an hour at peak

Planned

268 m

BusConnects Core Bus Corridors, Blackrock to Merrion

Radon

1 in 20

homes here likely high (EPA). Test it

Flood

Within 500 m

OPW flood map area, not beside the house

Nearest school

221 m

Carysfort Ns, 583 pupils

Homes sold nearby

103

in 3 years, 45 new (Property Price Register)

Schools, stops and the council

Schools

Carysfort Ns · primary · 583 pupils · 221 m
Benincasa Special School · primary · 35 pupils · 354 m
Dominican College · postprimary · 521 pupils · 514 m
Booterstown NS · primary · 85 pupils · 544 m
Blackrock College · postprimary · 1041 pupils · 695 m

Stops 32

Carysfort Avenue · 114, L26 · 3/hour at peak · 233 m
Frascati Road · 114, L26 · 3/hour at peak · 237 m
Frascati SC · 4, 7, 702, 7A, 7E, S6 · 14/hour at peak · 289 m
UCD Smurfit · 114, L26 · 3/hour at peak · 294 m
Frascati SC · 4, 702 · 4/hour at peak · 295 m
UCD Smurfit · 114, L26 · 3/hour at peak · 318 m
Sydney Avenue · S6 · 4/hour at peak · 319 m
Sydney Avenue · S6 · 4/hour at peak · 333 m

Schools growing or shrinking planning in 3 years · pupils last year

Carysfort Ns · 221 m-0.9% pupils (583)
Benincasa Special School · 354 m-16.7% pupils (35)
Dominican College · 514 m+2.6% pupils (521) · 3 classrooms 2025, approved with conditions · an extension 2024, approved
Booterstown NS · 544 m-7.6% pupils (85)
Blackrock College · 695 m-1.1% pupils (1,041) · an extension 2024, approved

Council meetings 3 items

12 Oct 2026 · 4.07. Proposed disposal of Council owned land at 169 Foxrock Close, Deansgrange, Dublin 18 - LD 2512
7 Sept 2026 · National flag in Blackrock Park
11 May 2026 · Taking in Charge at Proby Place, Blackrock, Co. Dublin

Public land

University College Dublin · 0.7 ha · 202 m
University College Dublin · 0.82 ha · 232 m
Dún Laoghaire-Rathdown County Council · 0.27 ha · 254 m
University College Dublin · 1.6 ha · 255 m
Dún Laoghaire-Rathdown County Council · 0.25 ha · 268 m
University College Dublin · 1.37 ha · 291 m

Sources: Public transport stops and routes (NTA GTFS), Department of Education school list, National Planning Application Database, Council consultation portals, Council meetings (ModernGov), Land Development Agency public land register, cso_saps_2022, National Transport Authority, Fingal County Council and Dún Laoghaire-Rathdown County Council development plan layers (CC BY 4.0), dartplus.ie project extents over NTA GTFS rail shapes (CC BY 4.0), EPA strategic noise maps, Fingal County Council · fetched 5 Nov 2026, 05:03

Source	Licence	Fetched	Link
Public transport stops and routes (NTA GTFS)	CC BY 4.0	1 Nov 2026, 23:05	open
Department of Education school list	CC BY 4.0	27 Oct 2026, 23:04	open
National Planning Application Database	CC BY 4.0	5 Nov 2026, 05:03	open
Council consultation portals	Public	5 Nov 2026, 01:15	open
Council meetings (ModernGov)	Public	5 Nov 2026, 02:33	open
Land Development Agency public land register	CC BY 4.0	11 Sept 2026, 16:43	open
cso_saps_2022	CC BY 4.0	—	open
National Transport Authority	CC BY 4.0	—	—
Fingal County Council and Dún Laoghaire-Rathdown County Council development plan layers (CC BY 4.0)	CC BY 4.0	—	—
dartplus.ie project extents over NTA GTFS rail shapes (CC BY 4.0)	CC BY 4.0	—	—
EPA strategic noise maps	CC BY 4.0	—	—
Fingal County Council	CC BY 4.0	—	—

Question 6

What to ask, and who

Protected building: what changes would you be allowed?
Ask for: A section 57 declaration from the council.
Council
In a conservation area: which outside changes need permission?
Ask for: The council's guidance for the area.
Council
98 homes approved 224 m away (Frascati Centre), not started: what is planned?
Ask for: The planning file for D21A/0996.
Council
Application 199 m away open for comments until 16 Nov 2026: comment?
Ask for: The plans on the council's website (€20 to comment).
Council
Decision 178 m away can be appealed until 9 Nov 2026: appeal?
Ask for: The decision on the council's website (€220 to appeal).
Council
Any work done without planning permission?
Ask for: An opinion of compliance for the whole house.
Seller · solicitor

Reference

Where this is, the terms, the sources

Townland: Blackrock
Electoral division: Blackrock-Central
Electoral area: Blackrock
Council: Dun Laoghaire-Rathdown County Council

Everything we found, as a list 8 lines

Zoned R2 (existing residential); protected building; in a conservation area; no vacant land tax.
2 sites nearby could change: 1 derelict, 1 approved scheme.
3 applications open for comments nearby; nearest closes 16 Nov 2026.
98 homes approved nearby, not started; largest 98 at Frascati Centre.
Frascati SC (bus 4, 7) 289 m away: 14 an hour at morning peak; 104 from all stops within 500 m. Planned: BusConnects Core Bus Corridors 268 m away, core bus corridor (DLR County Development Plan 2022-2028).
Here (2022 census): 68% owner-occupied (council 68%); 8% of homes empty (council 6%); most built 1919–1945; 30% drive to work (council 43%); population up 1% since 2016.
3 home extensions within 250 m since 2026. Most were single-storey rear extensions.
Around here the council decides in a median 51 days (about 7 weeks); 1 in 8 is asked for more information.

What the terms mean 10 terms

Vacant land tax (Residential Zoned Land Tax (RZLT)): A yearly tax of 3% of the land's value on land that is zoned for homes and serviced but left unbuilt.
Building started (Commencement notice (BCMS)): The builder must tell the council's building control office 14 to 28 days before work starts.
Signed off as finished (Certificate of Compliance on Completion): A certificate filed when a building is finished, confirming it meets the building regulations.
Approved (Grant of permission): The council said yes, usually with conditions.
Listed by the council as derelict (Derelict Sites Register): Councils keep a public list of land and buildings in a ruinous or dangerous state.
Protected building (Protected structure (Record of Protected Structures)): A building the council has listed for its heritage value.
Conservation area (Architectural Conservation Area (ACA)): A street or area whose character is protected.
Comment on an application (Observation / submission): Anyone can comment on a planning application within five weeks of it being lodged, for a €20 fee.
Appeal (Appeal to An Coimisiún Pleanála): The applicant, or anyone who commented in time, can appeal the council's decision within four weeks.
What the land is zoned for (Zoning objective): The council's development plan sets what each area is for: homes, shops, open space and so on.

Sources and licences 32

Source	Publisher	Licence	Fetched
EPA strategic noise maps	—	CC BY 4.0	—
Fingal County Council	—	CC BY 4.0	—
Fingal County Council and Dún Laoghaire-Rathdown County Council development plan layers (CC BY 4.0)	—	CC BY 4.0	—
National Transport Authority	—	CC BY 4.0	—
services-eu1.arcgis.com	An Coimisiún Pleanála	CC BY 4.0	30 Oct 2026
data.nbco.gov.ie	National Building Control Office (BCMS)	CC BY 4.0	5 Nov 2026
data.gov.ie	Various (see each layer)	CC BY 4.0, CC BY-NC-ND 4.0	27 Sept 2026
services.arcgis.com	Local authorities (ACAs)	CC BY 4.0	27 Sept 2026
s3.eu-west-1.amazonaws.com	Office of Public Works	CC BY-NC-ND 4.0 · flag only	11 Sept 2026
gis.epa.ie	Environmental Protection Agency	CC BY 4.0	27 Sept 2026
services.arcgis.com	Local authorities (Record of Protected Structures)	CC BY 4.0	27 Sept 2026
services-eu1.arcgis.com	National Monuments Service (SMR)	CC BY 4.0	27 Sept 2026
dlrcoco.citizenspace.com	Local authorities (consultation portals)	Public	5 Nov 2026
www2.courts.ie	—	© the publisher	4 Nov 2026
cso.ie	—	CC BY 4.0	—
dartplus.ie project extents over NTA GTFS rail shapes (CC BY 4.0)	—	CC BY 4.0	—
services-eu1.arcgis.com	Local authorities (derelict sites registers)	CC BY 4.0	2 Nov 2026
services.arcgis.com	Dublin local authorities (housing delivery pipeline)	CC BY 4.0	2 Nov 2026
esbnetworks.ie	—	© the publisher · flag only	11 Sept 2026
transportforireland.ie	National Transport Authority	CC BY 4.0	1 Nov 2026
lda.ie	Land Development Agency	CC BY 4.0	11 Sept 2026
meetings.fingal.ie	Local authorities (council meetings)	Public	5 Nov 2026
services.arcgis.com	Department of Housing (National Planning Application Database)	CC BY 4.0	5 Nov 2026
services-eu1.arcgis.com	Tailte Éireann	CC BY 4.0	11 Sept 2026
services-eu1.arcgis.com	CSO, Tailte Éireann, OpenStreetMap contributors	CC BY 4.0	4 Oct 2026
propertypriceregister.ie	Property Services Regulatory Authority (PPR)	© PSRA, PSI licence	5 Nov 2026
data.gov.ie	Local authorities (Record of Protected Structures)	CC BY 4.0	—
services.arcgis.com	Local authorities (RZLT maps)	CC BY 4.0	1 Nov 2026
gov.ie	Department of Education	CC BY 4.0	27 Oct 2026
gov.ie	Department of Housing	CC BY-SA 4.0	23 Oct 2026
tusla.ie	Tusla (Early Years Inspectorate)	Public register	4 Nov 2026
services.arcgis.com	Local authorities via the Department of Housing (GZT / MyPlan)	CC BY 4.0	1 Nov 2026

Measured

counted from a public register

Calculated

a rate or median we worked out from those counts

Our classification

we sorted it by reading each description

Estimate

inferred from another source (census, map data)

Rule summary

the law, simplified: check before relying on it

How we work this out

Generated 5 Nov 2026, 10:12 from the Planning Register store; nothing was fetched live. Not a legal search: the council's planning file is the record. Deadlines come from published dates under the Planning and Development Act 2000: confirm with the council before relying on them. Street map © OpenStreetMap contributors; building outlines © Overture Maps Foundation. The text version carries every figure with its source, for an AI assistant.

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