31 Knocksinna Park, Foxrock, Dublin 18, D18C5R3
Subdivision of a site and construction of a new two-storey house in Foxrock.
D26A/0158/WEB · Dun Laoghaire Rathdown County Council · Lodged 25 February 2026
- Reference
- D26A/0158/WEB
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 25 February 2026
Summary
AI-generatedThe project consists of subdividing the existing site at 31 Knocksinna Park to construct a new two-storey dwelling. It also includes minor modifications to the existing house, such as removing a chimney breast and windows.
- Residential unit
- 1
- Storeys
- 2
Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.
Official record
Development description
The proposed development will consist of subdivision of the existing site and construction of a new two storey dwelling, with associated site development works. The development will also consist of works to the existing house to include the removal of 1 no. Existing chimney breast and 3 no. Windows on north-east elevation and a proposed window on the north-west elevation.
Land-use zoning
What this land is zoned for
“A To provide residential development and improve residential amenity while protecting the existing residential amenities”
Objective set by the COUNTY DEVELOPMENT PLAN 2022-2028 (2022–2028). The planning authority decides each application on its own merits — this is the zoning context, not a compliance assessment.
Read the zoning objectives in the development planBuilt & sold
What happened next
Beyond the decision: whether this development was built, and what property here has sold for.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 66 Granville Park, Blackrock, Co Dublin | Jul 2025 | €995,000 | 38 m |
| 59 Granville Park, Blackrock, Dublin | May 2026 | €1,140,000 | 84 m |
| 57b Foxrock Avenue, Foxrock, Dublin 18price excludes VAT | Apr 2025 | €625,551 | 100 m |
| 57c Foxrock Avenue, Foxrock, Dublin 18price excludes VAT | Apr 2025 | €638,766 | 100 m |
| 57e Foxrock Avenue, Foxrockprice excludes VAT | Mar 2025 | €548,018 | 100 m |
| 57f Foxrock Avenue, Foxrockprice excludes VAT | Mar 2025 | €541,850 | 100 m |
| 57d Foxrock Avenue, Foxrockprice excludes VAT | Jan 2025 | €641,410 | 123 m |
| 108 Foxrock Ave, Foxrock, Dublin 18 | Feb 2025 | €1,100,000 | 142 m |
Nearby properties, not this site — a guide to local values.
Sources: Building Control Management System (commencement notices) and the Residential Property Price Register, licensed under CC BY 4.0. Records are matched to this application by location and may not be exhaustive; always confirm against the official source before relying on them.
Key dates
Timeline
- Application received25 February 2026
- Decision due27 April 2026
- Decision issued9 March 2026
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- RefusedAt this site
The proposed development will consist of subdivision of the existing site and construction of a new two…
Lisheen, 31 Knocksinna Park, Newpark, Dublin 18, D18C5R3
D26A/0195/WEBDún Laoghaire–RathdownLodged 9 Mar 2026New dwelling
- Exempt — no permission neededAt this site
1 Unit
31 Knocksinna Park, Foxrock, DUBLIN, D18C5R3
V/019/26Dún Laoghaire–RathdownLodged 12 Mar 2026
- Granted30 m away
Planning Permission For Alterations To The Works Previously Granted Under Planning Ref D21A/ 0689, Works Now…
67, Granville Park, Blackrock, Dublin, A94TD28
D25A/0561/WEBDún Laoghaire–RathdownLodged 14 Jul 2025Extension
- Granted30 m away
Permission for development. The proposed development will consist of a) removal of existing garage to side,…
67, Granville Park, Blackrock, Co Dublin, A94TD28
D21A/0689Dún Laoghaire–RathdownLodged 21 Feb 2022Extension
- Granted50 m away
Planning permission is sought for conversion of attic space to living room, and two bedrooms with en-suite…
66, Granville Park, Blackrock, Co. Dublin
D11B/0067Dún Laoghaire–RathdownLodged 3 Mar 2011Extension
- Granted50 m away
Construction of Bay Window extention (10 sq.m) to front (south) of dwelling
27 Knocksinna Park, Dublin 18, D18P9E5
D23B/0445Dún Laoghaire–RathdownLodged 29 Sept 2023Extension
- Granted50 m away
A new front entrance to the existing house complete with double doors and windows, alter roof slope and…
27 Knocksinna Park, Foxrock, Dublin 18.
D02B/0094Dún Laoghaire–RathdownLodged 4 Mar 2002Alterations
- Granted60 m away
Planning permission is sought for alterations to front elevation including bay window and porch extension to…
30, Knocksinna Park, Stillorgan,Dublin 18
D10A/0629Dún Laoghaire–RathdownLodged 16 Nov 2010Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- RefusedNew dwelling
The proposed development will consist of subdivision of the existing site and construction of a new two…
Lisheen, 31 Knocksinna Park, Newpark, Dublin 18, D18C5R3
D26A/0195/WEBDún Laoghaire–RathdownLodged 9 Mar 2026
- GrantedExtension
The development will consist of the following: the partial demolition of a single storey element to the side…
25, Ennafort Park, Raheny, Dublin 5
2752/20Dublin CityLodged 25 May 2020
- GrantedExtension
The development will consist of the construction of a 1 & 2 storey extension to the rear of the house,…
51, Carrickmount Drive, Dublin 14, D14X786
D24B/0231/WEBDún Laoghaire–RathdownLodged 15 May 2024
- GrantedExtension
The development consists of the demolition of an existing single storey extension to the front of existing…
9, Copeland Grove, Copeland, Dublin 3
WEB1865/23Dublin CityLodged 9 Oct 2023
- GrantedExtension
The proposed development will consist of demolition, alterations and extensions to the existing 2 storey…
27, Larkfield Grove, Harolds Cross, Dublin 6W
WEB1205/20Dublin CityLodged 17 Apr 2020
- GrantedExtension
Demolition of existing single storey section to the western side of existing dwelling house and an existing…
No.31 Castleowen, Monacnapa, Blarney,
145419corkLodged 3 Jul 2014
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