Planning report · Dun Laoghaire-Rathdown County Council · 500 m around the house · the last 12 months · 20 Oct 2026, 15:57

Fosterbrook

53.30833, -6.20705

Homes here mostly date from the 1990s. 1 planning file on this house, the latest from 2014. Home extensions nearby almost always get approved (94%). 2 applications nearby open for comments.

See on the map Watch this area

Distance

250 m 500 m 1 km 2 km

Time

12 months 2 years 5 years

1planning file on this houselatest 2014 94%of home extensions approved nearbyn=585 · 1.5 km · 10 yrs 53 daystypical wait for a decisionmiddle half 50–55 2open for comments nearbyclose 22 Oct–28 Oct

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 53 days
4Appeal window4 weeks after the decision
5AppealHere about 5 months
6PermissionLasts 5 years
7StartStart notice to the council. Here about 5 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 1991–2000, under planning permission and building regulations. 1 planning file on this house, the latest from 2014.

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

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

2014
D14B/0096 · demolition · approved 2014 · ran out unbuilt
approvedstartedsigned off

On this site

Zoning · Existing residential

Protected or listed · on the council's list

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

Radon1 in 20 homes have high radon (EPA)

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

Licensed industrial sites within 1.0 km: Sytheses Limited (436 m)

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

Flood riskNone mapped within 500 m

Within 500 m	Count	For example
Licensed industrial sites	1	Sytheses Limited
Radon grid squares	2
Protected buildings	6	Dornden House; Bellevue House
Monuments	2	House - 18th/19th century; R149464

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.

Sources: Development plan zoning (councils), EPA radon map, EPA licensed facilities (LEAP), Residential Zoned Land Tax maps, Constraint layers (bundle), EPA licensed sites, Records of Protected Structures, Sites and Monuments Record · fetched 19 Oct 2026, 23:51

Source	Licence	Fetched	Link
Development plan zoning (councils)	CC BY 4.0	18 Oct 2026, 23:24	open
EPA radon map	CC BY 4.0	27 Sept 2026, 19:36	open
EPA licensed facilities (LEAP)	CC BY 4.0	19 Oct 2026, 23:51	open
Residential Zoned Land Tax maps	CC BY 4.0	19 Oct 2026, 00:29	open
Constraint layers (bundle)	CC BY 4.0, CC BY-NC-ND 4.0	27 Sept 2026, 19:37	open
EPA licensed sites	CC BY 4.0	27 Sept 2026, 19:36	open
Records of Protected Structures	CC BY 4.0	27 Sept 2026, 19:36	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 20 Oct 2026, 02:09

Source	Licence	Fetched	Link
Building Control Management System (commencement notices)	CC BY 4.0	20 Oct 2026, 01:45	open
National Planning Application Database	CC BY 4.0	20 Oct 2026, 02:09	open

Question 2

Could you extend?

Nothing on this site restricts it: not protected, not in a conservation area.

Figure 2

What happened to applications like yours

Extensions here: 82–100% by type. A new house in a garden is harder: 57% approved, and 1 in 3 is asked for more information.

Single-storey rear95 decided · more info asked 14%

99% · council 96%

Two-storey rear72 decided · more info asked 17%

93% · council 90%

Two-storey side23 decided · more info asked 26%

100% · council 94%

Single-storey side17 decided · more info asked 12%

94% · council 96%

Attic or dormer213 decided · more info asked 12%

91% · council 92%

First-floor28 decided · more info asked 14%

82% · council 89%

Garage conversion22 decided · more info asked 5%

100% · council 99%

Porch or front16 decided · more info asked 6%

94% · council 98%

New house in a garden or site49 decided · more info asked 29%

57% · council 62%

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 · 535 nearby, 6,620 council-wide

Figure 3

Fosterbrook, file by file since 2002

25 of 28 decided extensions on the road were approved. New houses in side gardens or on sites: 1 of 1.

ApprovedRefusedWithdrawn or invalid

34 files with "Fosterbrook" 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 · 2002–2026

Extensions and refusals right beside you 9 within 250 m · 0 refused within 100 m

Extensions and refusals near you 9 extensions within 250 m · the last 12 months

7 of 7 approved (100%) · most common: dormer or attic

7 approved2 no decision or withdrawn

Kind	Applied	Approved	Refused
Dormer or attic	5	3	—
First-floor	1	1	—
Other	1	1	—
Single-storey rear	1	1	—
Two-storey rear	1	1	—

On Fosterbrook: 10 extensions in 10 years, 92% of all applications approved; most common dormer or attic.

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 20 Oct 2026, 02:09

Source	Licence	Fetched	Link
National Planning Application Database	CC BY 4.0	20 Oct 2026, 02:09	open
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	16 Oct 2026, 23:06	open

Sources: An Coimisiún Pleanála cases (ArcGIS feed), Building Control Management System (commencement notices), National Planning Application Database · fetched 20 Oct 2026, 02:09

Source	Licence	Fetched	Link
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	16 Oct 2026, 23:06	open
Building Control Management System (commencement notices)	CC BY 4.0	20 Oct 2026, 01:45	open
National Planning Application Database	CC BY 4.0	20 Oct 2026, 02:09	open

Question 3

How long, and what if someone objects?

Figure 4

A home extension's journey here

A decision takes 53 days. 1 in 6 is asked for more information, which adds about 64 days. Building starts about 5 months after permission.

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

Calculated585 decided home extensions, 300 start notices, 152 decided appeals · within 1.5 km, 10 years · NPAD, BCMS, An Coimisiún Pleanála

Figure 5

What appeals changed

28 of 57 appealed refusals became permissions. 8 of 97 appealed approvals were reversed.

Refusals appealed57 decided

28 became permissions

Approvals appealed97 decided

8 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 2 in the last 12 months

None of 2 changed the council's decision

501590 Granted · 19 Trimleston Avenue, Blackrock, Co. Dublin, A94XD42 · 409 m
500441 Refused · 54, Woodbine Road, Booterstown, Dublin, A94WF22 · 236 m report

Sources: An Coimisiún Pleanála cases (ArcGIS feed), Courts Service legal diary (judicial reviews), National Planning Application Database · fetched 20 Oct 2026, 02:09

Source	Licence	Fetched	Link
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	16 Oct 2026, 23:06	open
Courts Service legal diary (judicial reviews)	© the publisher	20 Oct 2026, 01:39	open
National Planning Application Database	CC BY 4.0	20 Oct 2026, 02:09	open

Question 4

What's changing around you?

Street map around Fosterbrook with 15 numbered planning items — ⌖ the houseOpen for commentsBuilding startedApprovedNo decision yetOther

130, Seafield Road D26A/0697/WEBNo decision yet · 117 m
225, Woodbine Park D26B/0513/WEBNo decision yet · 127 m
314 Seafield Road, Blackrock D26A/0254/WEBBuilding started · 181 m
437 Fosterbrook, Booterstown D26B/0450/WEBApproved · 15 m
529 Seafield Road, Booterstown D26B/0494/WEBNo decision yet · 51 m
655 Trimleston Gardens, Booterstown REF8626Section 5: exempt · 155 m
789, Trimleston Gardens D26A/0472/WEBApproved · 195 m
834, Woodbine Park D26B/0103/WEBApproved · 203 m
95, Seafield D25B/0601/WEBApproved · 204 m
1046, Glenomena Park D26B/0211/WEBApproved · 219 m
1154, Woodbine Road D26B/0396/WEBApproved · 236 m
127, Seafield Close D26B/0303/WEBApproved · 250 m
1316, Trimleston Gardens D26A/0074/WEBApproved · 266 m
1459, Glenomena Park D26B/0424/WEBApproved · 292 m
152, Seafield Close D25B/0724/WEBApproved · 292 m

Figure 6

What happens to applications within 500 m

Permission isn't building. Of 214 permissions since 2016, 114 show a start notice and 10 have a completion certificate. Most owners opt out of sign-off.

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.

Measured252 applications in 10 years · NPAD, An Coimisiún Pleanála, BCMS start notices and completion certificates

Figure 7

The next 30 days

3 deadlines within 500 m; the first closes 22 Oct 2026.

Comments closeHigh Court window ends

Comments close 22 Oct 20262 days left
1D26A/0697/WEB · application received — Permission is sought for new vehicular entrance and parking area (including ass
€20 to the council · 117 m away
Comments close 28 Oct 20268 days left
2D26B/0513/WEB · application received — 1. Demolition of part of the existing two-storey structure and chimney stack to
€20 to the council · 127 m away
Time to ask the High Court for a review ends 10 Nov 202621 days left
Grant permission
409 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

BusConnects Core Bus Corridors is planned 411 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)

Figure 9

Applications within 500 m, by year

Between 21 and 33 a year; busiest 2025. 95% of decisions were approvals.

ApprovedRefusedWithdrawn or invalidUndecided

2016 and 2026 are part years (*). Exemption requests and time extensions are left out.

Measuredcouncil register via NPAD

Open for comments €20 to comment

130, Seafield Road, Booterstown, Blackrock, Co Dublin, A94KF54 comments close 22 Oct 2026
Permission is sought for new vehicular entrance and parking area (including ass
D26A/0697/WEB17 Sept 2026117 m
225, Woodbine Park, Booterstown, Blackrock, A94RW31 comments close 28 Oct 2026
1. Demolition of part of the existing two-storey structure and chimney stack to
D26B/0513/WEB23 Sept 2026127 m

Every application within 500 m 25 in the last 12 months

See every application on the map

529 Seafield Road, Booterstown, Blackrock, Co. Dublin, A94FH10 No decision yet
Conversion of her attic to storage including changing her existing hipped end r
D26B/0494/WEB10 Sept 202651 m
18, Ashfield Park, Donnybrook, Dublin 4, D04F8N6 No decision yet
Retention permission for hip to gable non habitable attic conversion; single sto
D26A/0642/WEB27 Aug 2026362 m
437 Fosterbrook, Booterstown, Blackrock, Co. Dublin Approved
Conversion of existing attic space comprising of modification of existing roof
D26B/0450/WEB2 Oct 202615 m
1459, Glenomena Park, Booterstown, Co. Dublin, A94W722 Approved
Demolition of existing garage at the side, construction of a two storey, pitche
D26B/0424/WEB16 Sept 2026292 m
No. 54 St. Helens Road, Booterstown, Blackrock, Co. Dublin, A94 VY04 Approved
• Alterations to existing vehicular entrance to increase in width to 3.5M • Demo
D26A/0545/WEB8 Sept 2026311 m
1154, Woodbine Road, Booterstown, Co. Dublin, A94WF22 Approved
Permission is sought for the extension and alteration of existing detached two s
D26B/0396/WEB2 Sept 2026236 m
59 Glenomena Park, Booterstown, Blackrock, Co. Dublin, A94W722 Withdrawn or not valid
Construction of a single-storey porch to the side, a two storey, pitched roof e
D26B/0385/WEB7 Jul 2026292 m
789, Trimleston Gardens, Booterstown, Dublin, A94HN73 Approved
A 26.5sqm. first floor extension to the side of the existing house requiring a
D26A/0472/WEB14 Aug 2026195 m
655 Trimleston Gardens, Booterstown, Blackrock, Dublin, A94 A3C3 Section 5: exempt
Installation of single roof window (Velux type) measuring approx 940mm x 1600mm
REF862624 Jun 2026155 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 2026402 m
127, Seafield Close, Booterstown, Co. Dublin, A94C935 Approved
•Demolition of the existing single storey extension to the side, demolition of h
D26B/0303/WEB8 Jul 2026250 m
55, Trimleston Gardens, Booterstown, DUBLIN, A94A3C3 Section 5: exempt
Proposed development consists of the installation of external wall insulation to
REF542629 Apr 2026155 m
1046, Glenomena Park, Booterstown, Blackrock, Dublin, A94DP23 Approved
The Development will consist of - The construction of a two-storey extension to
D26B/0211/WEB27 May 2026219 m
19 Trimleston Avenue, Blackrock, Co. Dublin, A94XD42 Approved
The development will consist of:1. Demolition of single storey shed to the rear,
D26B/0209/WEB28 May 2026409 m
Ferndale, 14 Seafield Road, Booterstown, Co. Dublin, A94RY73 Approved
Alterations and additions to an existing 2-storey detached dwelling comprising o
D26A/0254/WEB29 Jul 2026159 m
834, Woodbine Park, Booterstown, Dublin, A94A997 Approved
The development for permission will consist of: • Alteration to the front wall a
D26B/0103/WEB13 Apr 2026203 m
1316, Trimleston Gardens, Booterstown, Co. Dublin, A94VH26 Approved
a) single storey extension to rear of existing dwelling with rooflights; b) exis
D26A/0074/WEB31 Mar 2026266 m
Aparto Montrose Student Accommodation, Stillorgan Road, Dublin 4 Approved
Permission is sought for the secondary use of 179 No. permitted and operational
D26A/0004/WEB25 Feb 2026431 m
152, Seafield Close, Booterstown, Blackrock, Co. Dublin, A94CA49 Approved
The development will consist of: •Alterations to previously permitted dormers (F
D25B/0724/WEB19 Feb 2026292 m
31, Dornden Park, Booterstown, Blackrock, Dublin, A94X434 Section 5: awaiting decision
New 900mm wide, 1.6m high gate to the rear garden. From rear laneway establishe
REF189257 Jan 2026371 m
Embassy Of The Federal Republic Of Germany, German Embassy Dublin,31, Trimleston Avenue, Booterstown, Dublin, A94TX94 Approved
The development will consist of: (1) removal of existing guard hut and construc
D25A/0883/WEB21 Jan 2026333 m
65, McCabe Villas, Booterstown, Blackrock, Co. Dublin, A94PF89 Approved
Erection of a First Floor Rear flat roofed Extension on top of part of existing
D25B/0649/WEB5 May 2026485 m
95, Seafield, Booterstown, Co. Dublin, A94Y033 Approved
Planning permission for attic conversion with extended ridgeline to side from hi
D25B/0601/WEB16 Dec 2025204 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 20 Oct 2026, 02:09

Source	Licence	Fetched	Link
National Planning Application Database	CC BY 4.0	20 Oct 2026, 02:09	open
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	16 Oct 2026, 23:06	open
Building Control Management System (commencement notices)	CC BY 4.0	20 Oct 2026, 01:45	open

Building work nearby 12 in the last 12 months

1 signed off as finished2 not signed off9 no sign-off needed

314 Seafield Road, Blackrock, Dublin, A94 RY73 · 2 Nov 2026 · 1 homes · start notice, opted out no sign-off needed · D26A/0254/WEB · 181 m
13 McCabe Villas, Blackrock, Dublin, A94 XW29 · 30 Sept 2026 · 1 homes · start notice, opted out no sign-off needed · D25B/0395/WEB · 489 m
Booterstown Avenue, Booterstown, Dublin, A94XN72 · 13 Jul 2026 · start notice not signed off · D25A/0087/WEB · 455 m
Booterstown Avenue, Booterstown, Dublin, A94XN72 · 29 Jun 2026 · start notice signed off · 476 m
34 Woodbine Park, Blackrock, Dublin, A94 A997 · 4 Jun 2026 · 1 homes · start notice, opted out no sign-off needed · D26B/0103/WEB · 223 m
9 Seafield Crescent, Blackrock, Dún Laoghaire-Rathdown, A94 R762 · 28 May 2026 · 1 homes · start notice, opted out no sign-off needed · D25B/0325/WEB · 282 m
23 Woodbine Avenue, Blackrock, Dún Laoghaire-Rathdown, A94 CR97 · 26 May 2026 · 1 homes · start notice, opted out no sign-off needed · D25B/0527/WEB · 338 m
5 Seafield Road, Blackrock, Dún Laoghaire-Rathdown, A94 Y033 · 15 Apr 2026 · 1 homes · start notice, opted out no sign-off needed · D25B/0601/WEB · 220 m
34 Seafield Road, Blackrock, Dún Laoghaire-Rathdown, A94 AP89 · 9 Mar 2026 · 1 homes · start notice, opted out no sign-off needed · D24A/0692/WEB · 127 m
34 Seafield Road, Blackrock, Dún Laoghaire-Rathdown, A94 AP89 · 9 Mar 2026 · 1 homes · short notice no sign-off needed · D24A/0703/WEB · 127 m
5 Bellevue Park, Booterstown, Dún Laoghaire-Rathdown, A94 RD45 · 1 Dec 2025 · 1 homes · start notice not signed off · D24A/0873/WEB · 353 m
73 Trimleston Gardens, Booterstown, Dún Laoghaire-Rathdown, A94 N529 · 18 Nov 2025 · 1 homes · short notice no sign-off needed · D25B/0075 · 262 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 20 Oct 2026, 01:45

Source	Licence	Fetched	Link
Building Control Management System (commencement notices)	CC BY 4.0	20 Oct 2026, 01:45	open

Named places nearby: estate, schemes, crèches, schools

Named places estate, developments, inspections

Estate: Fosterbrook · 14 applications in 10 years · 92% approved · most common: attic conversion / dormer

Developments within 1.0 km

Scheme	Homes	Progress	Distance
Elmpark Green	79	—	453 m
24-28 Fosters Avenue	69	69 being built (2026-Q2)	716 m
26 & 28 Foster's Avenue	—	—	727 m
Part Ground Floor of Permitted Block A	—	—	735 m
3.4 ha at Chesterfield	—	—	745 m
Merrion	—	—	747 m
Merrion at	—	—	747 m
Chesterfield	—	—	747 m

Crèches and schools inspected

Name	Latest inspection	Distance
Willow House Childcare Woodbine · Crèche	26 Nov 2025 · report · Tusla Early Years Inspectorate	601 m
Booterstown Montessori School · Crèche	3 Mar 2025 · report · Tusla Early Years Inspectorate	628 m
St. Nicholas Montessori Merrion · Crèche	13 May 2026 · report · Tusla Early Years Inspectorate	890 m
The Park Academy Childcare Thornwood · Crèche	8 Sept 2025 · report · Tusla Early Years Inspectorate	946 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, Housing estates, National Planning Application Database, Department of Education school list, Tusla early years register · fetched 20 Oct 2026, 02:09

Source	Licence	Fetched	Link
Dublin housing delivery pipeline	CC BY 4.0	19 Oct 2026, 23:03	open
Housing estates	ODbL 1.0, CC BY-SA 4.0, CC BY 4.0	27 Sept 2026, 20:18	open
National Planning Application Database	CC BY 4.0	20 Oct 2026, 02:09	open
Department of Education school list	CC BY 4.0	27 Sept 2026, 23:32	open
Tusla early years register	Public register	14 Oct 2026, 23:20	open

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

Homes approved

Here68

Council middle44

Homes started

Here196

Council middle92

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 20 Oct 2026, 02:09

Source	Licence	Fetched	Link
An Coimisiún Pleanála cases (ArcGIS feed)	CC BY 4.0	16 Oct 2026, 23:06	open
Building Control Management System (commencement notices)	CC BY 4.0	20 Oct 2026, 01:45	open
National Planning Application Database	CC BY 4.0	20 Oct 2026, 02:09	open

Question 5

What's the area like?

Figure 10

This street block against the council

1% of homes built before 1971 (council 38%). 82% owner-occupied (council 68%).

Homes built before 1971

1% · council 38%

Homes built since 2001

3% · council 25%

Owner-occupied

82% · council 68%

Rented

17% · council 29%

Children under 15

20% · council 18%

Aged 65 and over

7% · council 17%

Households with 2+ cars

58% · council 39%

Work mainly from home

24% · council 19%

This small area (355 people)Dún Laoghaire-Rathdown

MeasuredCSO Census 2022, Small Area Population Statistics (CC BY 4.0) · small area 267022005

Bus

407 m

Seafield Road · 116, 46n, 47 · busiest stop within 500 m: 27 an hour at peak

Planned

411 m

BusConnects Core Bus Corridors, Bray to City

Radon

1 in 20

homes here likely high (EPA). Test it

Nearest school

473 m

St Andrews College, 1011 pupils

Homes sold nearby

in 3 years, 1 new (Property Price Register)

Schools, stops and the council

Schools

St Andrews College · postprimary · 1011 pupils · 473 m
Booterstown Boys · primary · 188 pupils · 546 m
Our Lady Of Mercy Convent School · primary · 247 pupils · 556 m
Coláiste Eoin · postprimary · 517 pupils · 650 m
Coláiste Íosagáin · postprimary · 488 pupils · 689 m
Willow Park School · postprimary · 206 pupils · 820 m

Stops 32

Seafield Road · 116, 46n, 47, 7B, 7D, E1 · 20/hour at peak · 407 m
Seafield Road · 116, 118, 47, 7B, 7D, E1 · 27/hour at peak · 435 m
St Helen's Road · 4, 7, 7A, 7E · 9/hour at peak · 541 m
Radisson Hotel · 116, 46n, 47, 700, 7B, 7D · 21/hour at peak · 558 m
Rock Road · 4, 7, 7A, 7n, 84n · 9/hour at peak · 564 m
Stillorgan Road · 47 · 581 m
Merrion Road · 4, 7, 702, 7A, 7n, 84n · 9/hour at peak · 595 m
Bellevue Avenue · 4, 7, 702, 7A, 7E · 10/hour at peak · 596 m

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

St Andrews College · 473 m+0.3% pupils (1,011) · an extension 2025, approved
Booterstown Boys · 546 m-9.6% pupils (188)
Our Lady Of Mercy Convent School · 556 m-2% pupils (247)
Coláiste Eoin · 650 m+1.4% pupils (517)
Coláiste Íosagáin · 689 m0% pupils (488)
Willow Park School · 820 m-1% pupils (206) · an extension 2024, approved

Open consultations

Cruise Passenger Realignment Project, Dun Laoghaire Harbour 1 day left

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

Dublin City Council · 1.21 ha · 422 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 20 Oct 2026, 02:32

Source	Licence	Fetched	Link
Public transport stops and routes (NTA GTFS)	CC BY 4.0	18 Oct 2026, 23:44	open
Department of Education school list	CC BY 4.0	27 Sept 2026, 23:32	open
National Planning Application Database	CC BY 4.0	20 Oct 2026, 02:09	open
Council consultation portals	Public	20 Oct 2026, 01:41	open
Council meetings (ModernGov)	Public	20 Oct 2026, 02:32	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

Demolition (D14B/0096) ran out unbuilt in 2019: built anyway?
Ask for: If built: proof it started in time, and an opinion of compliance.
Seller · solicitor
Application 117 m away open for comments until 22 Oct 2026: comment?
Ask for: The plans on the council's website (€20 to comment).
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: Trimleston or Owenstown
Electoral division: Blackrock-Glenomena
Electoral area: Blackrock
Council: Dun Laoghaire-Rathdown County Council

Everything we found, as a list 8 lines

1 application on this site; latest D14B/0096, approved 2014, ran out unbuilt.
Zoned R2 (existing residential); not protected; no vacant land tax.
Nothing nearby looks set to change.
2 applications open for comments nearby; nearest closes 22 Oct 2026.
Seafield Road (bus 116, 118) 435 m away: 27 an hour at morning peak; 47 from all stops within 500 m. Planned: BusConnects Core Bus Corridors 410 m away, core bus corridor (DLR County Development Plan 2022-2028).
Here (2022 census): 82% owner-occupied (council 68%); 6% of homes empty (council 6%); most built 1991–2000; 45% drive to work (council 43%); population down 4% since 2016.
9 home extensions within 250 m since 2025: 7 approved (100%). Most were dormers or attic conversions. On Fosterbrook: 10 in 10 years, 92% approved.
The council decides in a median 52 days (about 7 weeks); 1 in 8 is asked for more information.

What the terms mean 8 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.
Approval ran out without being built (Permission lapsed / expired): Most permissions last five years.
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	16 Oct 2026
data.nbco.gov.ie	National Building Control Office (BCMS)	CC BY 4.0	20 Oct 2026
data.gov.ie	Various (see each layer)	CC BY 4.0, CC BY-NC-ND 4.0	27 Sept 2026
gis.epa.ie	Environmental Protection Agency	CC BY 4.0	27 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	20 Oct 2026
www2.courts.ie	—	© the publisher	20 Oct 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	19 Oct 2026
services.arcgis.com	Dublin local authorities (housing delivery pipeline)	CC BY 4.0	19 Oct 2026
data.epa.ie	Environmental Protection Agency (LEAP licence register)	CC BY 4.0	19 Oct 2026
esbnetworks.ie	—	© the publisher · flag only	11 Sept 2026
overpass-api.de	OpenStreetMap contributors, NHDS, Kildare County Council	ODbL 1.0, CC BY-SA 4.0, CC BY 4.0	27 Sept 2026
transportforireland.ie	National Transport Authority	CC BY 4.0	18 Oct 2026
lda.ie	Land Development Agency	CC BY 4.0	11 Sept 2026
meetings.fingal.ie	Local authorities (council meetings)	Public	20 Oct 2026
services.arcgis.com	Department of Housing (National Planning Application Database)	CC BY 4.0	20 Oct 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	20 Oct 2026
services.arcgis.com	Local authorities (RZLT maps)	CC BY 4.0	18 Oct 2026
gov.ie	Department of Education	CC BY 4.0	27 Sept 2026
gov.ie	Department of Housing	CC BY-SA 4.0	9 Oct 2026
tusla.ie	Tusla (Early Years Inspectorate)	Public register	14 Oct 2026
services.arcgis.com	Local authorities via the Department of Housing (GZT / MyPlan)	CC BY 4.0	18 Oct 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 20 Oct 2026, 15:57 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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