PlanningRegister.ie
Planning report · South Dublin County Council · 500 m around the house · the last 12 months · 1 Nov 2026, 05:03

Coolamber Park, Knocklyon

53.28526, -6.31398

Homes here mostly date from the 1970s. Home extensions nearby almost always get approved (98%). 1 application nearby open for comments.

See on the mapWatch this area

How planning works, with this area's numbers

steps can overlap · medians for home extensions within 1.5 km, 10 years
  1. 1ApplySite notice up, plans online
  2. 2Comments5 weeks, €20. Comment to keep your right to appeal
  3. 3Decision8 weeks by law. Here 54 days
  4. 4Appeal window4 weeks after the decision
  5. 5AppealHere about 5 months
  6. 6PermissionLasts 5 years
  7. 7StartStart notice to the council. Here about 4 months after
  8. 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 1971–80, after planning permission began and before building regulations (1992).

Timeline from 1955: planning permission needed from October 1964, building regulations from June 1992, building records online from March 2014, sign-off opt-out from September 2015. Most homes here were built 1971–1980.1960197019801990200020102020Oct 1964permission neededJun 1992building regulationsMar 2014building records onlineSep 2015owners may opt out of sign-offThis houseAll of Coolamber ParkBuilt: most homes in this small area date from 1971–1980 (census estimate)most built2021: 1 file on Coolamber Park2022: 2 files on Coolamber Park2023: 4 files on Coolamber Park2025: 5 files on Coolamber Park2026: 1 file on Coolamber Park13 files

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
R2
Zoning · Existing residential
No
Protected or listed · on the council's list
No
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

RES: To protect and/or improve residential amenity

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.

south dublin county development plan 2022 2028 · 8 Mar 2022 – 8 Mar 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.

Vacant land taxNo lived-in homes don't pay it
Flood riskNone mapped within 500 m
Within 500 mCountFor example
Heritage inventory buildings2Idrone; Charleville House
Radon grid squares1
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, Residential Zoned Land Tax maps, Constraint layers (bundle), National Inventory of Architectural Heritage · fetched 25 Oct 2026, 23:43
SourceLicenceFetchedLink
Development plan zoning (councils)CC BY 4.025 Oct 2026, 23:06open
EPA radon mapCC BY 4.027 Sept 2026, 19:36open
Residential Zoned Land Tax mapsCC BY 4.025 Oct 2026, 23:43open
Constraint layers (bundle)CC BY 4.0, CC BY-NC-ND 4.027 Sept 2026, 19:37open
National Inventory of Architectural HeritageCC BY 4.027 Sept 2026, 19:35open
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 1 Nov 2026, 05:02
SourceLicenceFetchedLink
Building Control Management System (commencement notices)CC BY 4.01 Nov 2026, 03:07open
National Planning Application DatabaseCC BY 4.01 Nov 2026, 05:02open
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 are almost always approved here: 94–100% by type. A new house in a garden is harder: 81% approved, and 1 in 2 are asked for more information.

Single-storey rear78 decided · more info asked 9%
99% · council 96%
Two-storey rear21 decided · more info asked 43%
100% · council 99%
Two-storey side17 decided · more info asked 41%
94% · council 94%
Single-storey side15 decided · more info asked 13%
100% · council 94%
Attic or dormer230 decided · more info asked 17%
99% · council 98%
First-floor16 decided · more info asked 6%
100% · council 92%
Garage conversion30 decided · more info asked 10%
97% · council 99%
Porch or front12 decided · more info asked 8%
100% · council 96%
New house in a garden or site32 decided · more info asked 62%
81% · council 62%
Approved nearbySouth Dublin 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 · 451 nearby, 2,908 council-wide

Figure 3

Coolamber Park, file by file since 2021

7 of 7 decided extensions on the road were approved.

13 planning files on Coolamber Park since 2021, by kind and decision.202120222023202420252026Extensions, atticsNo. 38 · 2022 · single-storey rear · approved · SD22B/0238No. 150 · 2023 · single-storey rear · approved · SD23B/0038No. 89 · 2023 · single-storey rear · approved · SD23B/0058No. 102 · 2023 · other extension · approved · SD23B/0089No. 17 · 2025 · porch / front · approved · SD25B/0045WNo. 22 · 2025 · single-storey rear · approved · SD25B/0261WNo. 20 · 2025 · porch / front · approved · SD25B/0658WNo. 22 · 2026 · first-floor · undecided · SD26B/0372WPorches, roofs, otherNo. 67 · 2022 · other work · approved · SD22A/0287No. 1C · 2023 · other work · refused · SD23B/0188No. 67 · 2025 · other work · approved · SD25A/0200WNo. 38 · 2025 · other work · approved · SD25B/0253WNew house in a side gardenNo. 67 · 2021 · new house · withdrawn or invalid · SD21A/005467
ApprovedRefusedWithdrawn or invalid

13 files with "Coolamber Park" 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 · 2021–2026

Extensions and refusals right beside you 6 within 250 m · 0 refused within 100 m

Extensions and refusals near you 6 extensions within 250 m · the last 12 months

2 approved1 refused3 no decision or withdrawn
KindAppliedApprovedRefused
Dormer or attic21—
Porch21—
First-floor10—
Two-storey side101

On Coolamber: 8 extensions in 10 years, 87% of all applications approved; most common single-storey rear.

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 1 Nov 2026, 05:02
    SourceLicenceFetchedLink
    National Planning Application DatabaseCC BY 4.01 Nov 2026, 05:02open
    An Coimisiún Pleanála cases (ArcGIS feed)CC BY 4.030 Oct 2026, 23:01open
    Sources: An Coimisiún Pleanála cases (ArcGIS feed), Building Control Management System (commencement notices), National Planning Application Database · fetched 1 Nov 2026, 05:02
    SourceLicenceFetchedLink
    An Coimisiún Pleanála cases (ArcGIS feed)CC BY 4.030 Oct 2026, 23:01open
    Building Control Management System (commencement notices)CC BY 4.01 Nov 2026, 03:07open
    National Planning Application DatabaseCC BY 4.01 Nov 2026, 05:02open
    Question 3

    How long, and what if someone objects?

    Figure 4

    A home extension's journey here

    A decision takes 54 days. 1 in 6 is asked for more information, which adds about 64 days. Building starts about 4 months after permission.

    Comments open: 5 weeks · €20; Council decision: 54 days; If more info asked (1 in 6): 117 days; Appeal window: 4 weeks; If appealed: +162 days; Building starts: 126 days after permission0 mo3 mo6 mo9 mo12 mo15 mo18 moComments openComments close 5 weeks after the application is lodged5 weeks · €20Council decisionDecision: median 54 days, middle half 50–55 (n=370)54 daysIf more info asked (1 in 6)With further information: median 117 days (n=73)117 daysAppeal windowAnyone who commented can appeal within 4 weeks of the decision4 weeksIf appealedAt An Coimisiún Pleanála: median 162 days (n=35, all appeals within 1.5 km)+162 daysBuilding startsStart notice: median 126 days after permission (n=221)126 days after permissionSigned off52% of owners opt out of sign-off

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

    Calculated444 decided home extensions, 226 start notices, 35 decided appeals · within 1.5 km, 10 years · NPAD, BCMS, An Coimisiún Pleanála

    Figure 5

    What appeals changed

    4 of 12 appealed refusals became permissions. 2 of 23 appealed approvals were reversed.

    Refusals appealed12 decided
    4 became permissions
    Approvals appealed23 decided
    2 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

    Question 4

    What's changing around you?

    Street map around Coolamber Park, Knocklyon with 15 numbered planning items
    ⌖ the houseOpen for commentsWindow closingNo decision yetOtherRefusedApproved
    1. 123 Knocklyon Grove, Knocklyon SD26B/0466WNo decision yet · 363 m
    2. 25/5A, Knocklyon Cottages SD26A/0197WNo decision yet · 138 m
    3. 322 Coolamber Park, Knocklyon SD26B/0372WNo decision yet · 177 m
    4. 475, Idrone Park ED26/0098Section 5: exempt · 182 m
    5. 568, Dargle Wood SD21B/0201/EPRefused · 218 m
    6. 620, Coolamber Park SD25B/0658WApproved · 219 m
    7. 765, Knockaire SD26B/0419WNo decision yet · 231 m
    8. 830, Idrone Drive SD26B/0092Approved · 246 m
    9. 918 Idrone Park, Knocklyon SD26B/0309WApproved · 247 m
    10. 1016 Idrone Park, Knocklyon SD26B/0062WApproved · 259 m
    11. 11Iona Pastoral Community Centre, Idrone Avenue ED26/0081Section 5: exempt · 280 m
    12. 1266, Knockcullen Drive SD26B/0344Approved · 304 m
    13. 139, Knocklyon Close SD26B/0156WApproved · 381 m
    14. 1435, Templeroan Avenue ED26/0102Section 5: exempt · 422 m
    15. 1529, Scholarstown Park SD26B/0242WNo decision yet · 464 m
    Figure 6

    What happens to applications within 500 m

    Permission isn't building. Of 74 permissions since 2016, 32 show a start notice and 0 have a completion certificate.

    90 applications lodged within 500 m. Council: 74 approved, 3 refused. After appeals: 74 approved. Of those: 0 signed off, 16 built with the owner's opt-out, 16 started, 42 with no start notice found, 0 ran out.LODGEDCOUNCIL DECISIONAFTER APPEALSWHAT HAPPENED NEXT74: lodged → approved3: lodged → refused7: lodged → withdrawn or invalid6: lodged → undecided74: approved → approved3: refused → refused7: withdrawn or invalid → withdrawn6: undecided → undecided42: approved → no start notice found16: approved → built, owner opted out16: approved → started, not signed off90 lodged90 lodged74 approved74 approved3 refused3 refused7 withdrawn or invalid7 withdrawn or invalid6 undecided6 undecided74 approved74 approved3 refused3 refused7 withdrawn7 withdrawn6 undecided6 undecided42 no start notice found42 no start notice found16 built, owner opted out16 built, owner opted out16 started, not signed off16 started, not signed 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.

    Measured90 applications in 10 years · NPAD, An Coimisiún Pleanála, BCMS start notices and completion certificates

    Figure 7

    The next 30 days

    2 deadlines within 500 m; the first closes 6 Nov 2026.

    2 deadlines in the next 30 days: 2026-11-06 SD26A/0197W: Request Additional Information — The proposed development will consist of the subdivision of the existing rear garden space, to enable the erection of 2n; 2026-11-18 SD26B/0466W: application received — Single storey extension, a rear attic dormer extension, 3 no. roof windows to front elevation, alterations to existing rtoday6 Nov11 Nov16 Nov21 Nov26 Nov1 DecSD26A/0197W: Request Additional Information — The proposed development will consist of the subdivision of the existing rear garden space, to enable the erection of 2n · 138 m away · 2026-11-06SD26B/0466W: application received — Single storey extension, a rear attic dormer extension, 3 no. roof windows to front elevation, alterations to existing r · 363 m away · 2026-11-18
    Comments closeTime to appeal ends
    • Time to appeal ends 6 Nov 20265 days left
      2SD26A/0197W · Request Additional Information — The proposed development will consist of the subdivision of the existing rear garden…
      €220 to An Coimisiún Pleanála (€110 observer) · 138 m away
    • Comments close 18 Nov 202617 days left
      1SD26B/0466W · application received — Single storey extension, a rear attic dormer extension, 3 no. roof windows to front elevation,…
      €20 to the council · 363 m away

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

    Figure 8

    Applications within 500 m, by year

    Between 12 and 19 a year; busiest 2023. 96% of decisions were approvals.

    2021: 19, 2022: 14, 2023: 19, 2024: 12, 2025: 15, 2026: 11051015202021: 15 approved2021: 4 withdrawn or invalid19’21*2022: 12 approved2022: 1 refused2022: 1 withdrawn or invalid14’222023: 16 approved2023: 1 refused2023: 2 withdrawn or invalid19’232024: 11 approved2024: 1 refused12’242025: 14 approved2025: 1 undecided15’252026: 6 approved2026: 5 undecided11’26*
    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

    Every application within 500 m 16 in the last 12 months

    See every application on the map

    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 1 Nov 2026, 05:02
    SourceLicenceFetchedLink
    National Planning Application DatabaseCC BY 4.01 Nov 2026, 05:02open
    An Coimisiún Pleanála cases (ArcGIS feed)CC BY 4.030 Oct 2026, 23:01open
    Building Control Management System (commencement notices)CC BY 4.01 Nov 2026, 03:07open
    Building work nearby 5 in the last 12 months
    5 no sign-off needed
    • 23 Knocklyon Close, Dublin, D16FA44 · 14 Jul 2026 · 1 homes · start notice, opted out no sign-off needed · SD22A/0450 · 415 m
    • 21 Ashton Close, Dublin, D16 V528 · 2 Jun 2026 · start notice, opted out no sign-off needed · SD24B/0373 · 320 m
    • 16 Idrone Park, Knocklyon, South Dublin, D16 PX29 · 29 May 2026 · start notice, opted out no sign-off needed · SD26B/0062W · 267 m
    • 20 Coolamber Park, Knocklyon, South Dublin, D16 E4W0 · 28 Mar 2026 · short notice no sign-off needed · SD25B/0658W · 233 m
    • 65 Cremorne, South Dublin, D16 A8P3 · 26 Nov 2025 · short notice no sign-off needed · SD23B/0504 · 257 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 1 Nov 2026, 03:07
    SourceLicenceFetchedLink
    Building Control Management System (commencement notices)CC BY 4.01 Nov 2026, 03:07open
    0
    Named places nearby: estate, schemes, crèches, schools

    Named places estate, developments, inspections

    Estate: Coolamber · 19 applications in 10 years · 87% approved · most common: single-storey rear

    Developments within 1.0 km

    SchemeHomesProgressDistance
    Knocklyon to Ballyboden Active and Sustainable Travel Scheme——210 m
    Dodder Greenway——523 m
    Ballyroan House2625 built · 1 being built (2026-Q2)590 m
    SDCC Lands @28 Locations——656 m
    Scholarstown House76—670 m
    Cheeverstown House99—867 m
    Castlefield Avenue3131 not started (2026-Q2)924 m
    Proposed Social and Affordable Mixed Tenure Housing Developm29—924 m

    Crèches and schools inspected

    NameLatest inspectionDistance
    Cool Kidz Creche · Crèche26 Mar 2026 · report · Tusla Early Years Inspectorate184 m
    Young Days Pre School & Montessori · Crèche5 Mar 2026 · report · Tusla Early Years Inspectorate523 m
    Tigers Childcare & Nexus Preschool · Crèche4 Mar 2026 · report · Tusla Early Years Inspectorate537 m
    Delaford Montessori · Crèche18 Oct 2024 · report · Tusla Early Years Inspectorate696 m
    Eager Beavers Montessori · Crèche9 May 2025 · report · Tusla Early Years Inspectorate703 m
    Naíonra Chnoc Liamhna · Crèche15 Apr 2025 · report · Tusla Early Years Inspectorate726 m
    Little Penguins · Crèche16 Apr 2026 · report · Tusla Early Years Inspectorate771 m
    Tigers Childcare · Crèche12 Jun 2025 · report · Tusla Early Years Inspectorate809 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 1 Nov 2026, 05:02
    SourceLicenceFetchedLink
    Dublin housing delivery pipelineCC BY 4.026 Oct 2026, 23:00open
    Housing estatesODbL 1.0, CC BY-SA 4.0, CC BY 4.027 Oct 2026, 23:03open
    National Planning Application DatabaseCC BY 4.01 Nov 2026, 05:02open
    Department of Education school listCC BY 4.027 Oct 2026, 23:04open
    Tusla early years registerPublic register28 Oct 2026, 23:19open
    How busy is this area About as busy as most of South Dublin County Council.
    Homes approved
    Here55
    Council middle0
    Homes started
    Here5
    Council middle4
    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 1 Nov 2026, 05:02
    SourceLicenceFetchedLink
    An Coimisiún Pleanála cases (ArcGIS feed)CC BY 4.030 Oct 2026, 23:01open
    Building Control Management System (commencement notices)CC BY 4.01 Nov 2026, 03:07open
    National Planning Application DatabaseCC BY 4.01 Nov 2026, 05:02open
    Question 5

    What's the area like?

    Figure 9

    This street block against the council

    6% of homes built before 1971 (council 18%). 96% owner-occupied (council 67%).

    Homes built before 1971
    6% · council 18%
    Homes built since 2001
    1% · council 27%
    Owner-occupied
    96% · council 67%
    Rented
    1% · council 29%
    Children under 15
    17% · council 21%
    Aged 65 and over
    31% · council 13%
    Households with 2+ cars
    67% · council 40%
    Work mainly from home
    14% · council 10%
    This small area (274 people)South Dublin

    MeasuredCSO Census 2022, Small Area Population Statistics (CC BY 4.0) · small area 267086007

    Bus
    181 m
    Knockaire · 15 · busiest stop within 500 m: 8 an hour at peak
    Radon
    1 in 20
    homes here likely high (EPA). Test it
    Nearest school
    201 m
    Scoil Colmcille Naofa, 721 pupils
    Homes sold nearby
    28
    in 3 years (Property Price Register)
    Schools, stops and the council

    Schools

    • Scoil Colmcille Naofa · primary · 721 pupils · 201 m
    • St Colmcille Senior NS · primary · 744 pupils · 201 m
    • Sancta Maria College · postprimary · 577 pupils · 673 m
    • St. Colmcille's Community School · postprimary · 727 pupils · 734 m
    • Saplings Special School · primary · 30 pupils · 815 m
    • Gaelscoil Chnoc Liamhna · primary · 233 pupils · 878 m
    • St Patrick Gns · primary · 472 pupils · 929 m

    Stops 32

    • Knockaire · 15 · 8/hour at peak · 181 m
    • Knockaire · 15 · 7/hour at peak · 213 m
    • Knockcullen Rise · 15 · 8/hour at peak · 290 m
    • Dargle Wood · 15 · 8/hour at peak · 310 m
    • Knockcullen Rise · 15 · 7/hour at peak · 333 m
    • Dargle Wood · 15 · 7/hour at peak · 335 m
    • Coolamber Court · 15 · 8/hour at peak · 457 m
    • Knocklyon Shop Cntr · 15 · 7/hour at peak · 474 m

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

    • St Colmcille Senior NS · 201 m-1.7% pupils (744)
    • Scoil Colmcille Naofa · 201 m-2.3% pupils (721)
    • Sancta Maria College · 673 m+0.5% pupils (577) · a pitch or play area 2026, section 5: awaiting decision · temporary classrooms 2024, approved
    • St. Colmcille's Community School · 734 m+0.3% pupils (727)
    • Saplings Special School · 815 m0% pupils (30) · a pitch or play area 2026, section 5: awaiting decision · temporary classrooms 2024, approved
    • Gaelscoil Chnoc Liamhna · 878 m+6.4% pupils (233)

    Open consultations

    Council meetings 16 items

    Public land

    • Dublin City Council · 0.35 ha · 38 m
    • South Dublin County Council · 0.75 ha · 207 m
    • Dublin City Council · 0.11 ha · 210 m
    • Dublin City Council · 1.4 ha · 234 m
    • South Dublin County Council · 0.3 ha · 257 m
    • South Dublin County Council · 0.26 ha · 267 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 1 Nov 2026, 05:02
    SourceLicenceFetchedLink
    Public transport stops and routes (NTA GTFS)CC BY 4.025 Oct 2026, 23:02open
    Department of Education school listCC BY 4.027 Oct 2026, 23:04open
    National Planning Application DatabaseCC BY 4.01 Nov 2026, 05:02open
    Council consultation portalsPublic1 Nov 2026, 01:08open
    Council meetings (ModernGov)Public1 Nov 2026, 02:24open
    Land Development Agency public land registerCC BY 4.011 Sept 2026, 16:43open
    cso_saps_2022CC BY 4.0—open
    National Transport AuthorityCC 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 mapsCC BY 4.0——
    Fingal County CouncilCC BY 4.0——
    Question 6

    What to ask, and who

    1. Application 362 m away open for comments until 18 Nov 2026: comment?
      Ask for: The plans on the council's website (€20 to comment).
      Council
    2. Decision 138 m away can be appealed until 6 Nov 2026: appeal?
      Ask for: The decision on the council's website (€220 to appeal).
      Council
    3. 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
    Knocklyon
    Electoral division
    Firhouse-Knocklyon
    Electoral area
    Firhouse-Bohernabreena
    Council
    South Dublin County Council
    Everything we found, as a list 8 lines
    • Zoned R2 (existing residential); not protected; no vacant land tax.
    • Nothing nearby looks set to change.
    • 1 application open for comments nearby; nearest closes 18 Nov 2026.
    • Knockcullen Rise (bus 15) 290 m away: 8 an hour at morning peak; 67 from all stops within 500 m.
    • Here (2022 census): 96% owner-occupied (council 66%); 6% of homes empty (council 4%); most built 1971–1980; 64% drive to work (council 54%).
    • 6 home extensions within 250 m since 2025. Most were dormers or attic conversions. 1 two-storey side extension refused. On Coolamber: 8 in 10 years, 87% approved.
    • The council decides in a median 55 days (about 8 weeks); 1 in 5 is asked for more information.
    • Homes started within 1 km: 0 in the last year, 28 three years before.
    What the terms mean 7 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.
    • 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 29
    SourcePublisherLicenceFetched
    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.comAn Coimisiún PleanálaCC BY 4.030 Oct 2026
    data.nbco.gov.ieNational Building Control Office (BCMS)CC BY 4.01 Nov 2026
    data.gov.ieVarious (see each layer)CC BY 4.0, CC BY-NC-ND 4.027 Sept 2026
    services-eu1.arcgis.comNational Inventory of Architectural HeritageCC BY 4.027 Sept 2026
    gis.epa.ieEnvironmental Protection AgencyCC BY 4.027 Sept 2026
    dlrcoco.citizenspace.comLocal authorities (consultation portals)Public1 Nov 2026
    www2.courts.ie—© the publisher31 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.comLocal authorities (derelict sites registers)CC BY 4.026 Oct 2026
    services.arcgis.comDublin local authorities (housing delivery pipeline)CC BY 4.026 Oct 2026
    esbnetworks.ie—© the publisher · flag only11 Sept 2026
    overpass-api.deOpenStreetMap contributors, NHDS, Kildare County CouncilODbL 1.0, CC BY-SA 4.0, CC BY 4.027 Oct 2026
    transportforireland.ieNational Transport AuthorityCC BY 4.025 Oct 2026
    lda.ieLand Development AgencyCC BY 4.011 Sept 2026
    meetings.fingal.ieLocal authorities (council meetings)Public1 Nov 2026
    services.arcgis.comDepartment of Housing (National Planning Application Database)CC BY 4.01 Nov 2026
    services-eu1.arcgis.comTailte ÉireannCC BY 4.011 Sept 2026
    services-eu1.arcgis.comCSO, Tailte Éireann, OpenStreetMap contributorsCC BY 4.04 Oct 2026
    propertypriceregister.ieProperty Services Regulatory Authority (PPR)© PSRA, PSI licence1 Nov 2026
    services.arcgis.comLocal authorities (RZLT maps)CC BY 4.025 Oct 2026
    gov.ieDepartment of EducationCC BY 4.027 Oct 2026
    gov.ieDepartment of HousingCC BY-SA 4.023 Oct 2026
    tusla.ieTusla (Early Years Inspectorate)Public register28 Oct 2026
    services.arcgis.comLocal authorities via the Department of Housing (GZT / MyPlan)CC BY 4.025 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 1 Nov 2026, 05:03 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.