No. 9 Knocksinna Park, Dublin 18
Extensions and alterations to the front, side, and rear of a house in Dublin 18.
D21B/0635 · Dun Laoghaire Rathdown County Council · Lodged 19 November 2021
- Reference
- D21B/0635
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 19 November 2021
Summary
AI-generatedThe project includes extending the existing side extension to create a new entrance with a pitched roof, and building a new single-storey rear extension. It also involves enclosing the front porch, adding a new front bay window, and replacing the existing dormers.
- Floor area
- 134 m²
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
Permission for - extension to existing side single storey extension to create new entrance, with new pitched roof. New single storey kitchen, dining, and living room extension to rear of house. Existing front porch to be enclosed. Addition of new bay window to front ground level. Replacement of existing dormers with new dormers at first floor. Total floor area 133.8msq.
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.
Built — construction complete
A commencement notice records works starting on 11 December 2023.
Notified floor area: 305.1 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 11 Foxrock Mount, Foxrock Park, Foxrock Dublin 18 | Jan 2025 | €745,000 | 130 m |
| 95 Foxrock Park, Foxrock, Dublin 18 | May 2025 | €840,000 | 179 m |
| 2 The Courtyard, Foxrock Park, Foxrock Dublin 18 | Apr 2026 | €815,000 | 216 m |
| 7 The Courtyard, Foxrock Park, Foxrock Dublin 18 | Sept 2025 | €860,000 | 220 m |
| 17 Granville Rd, Blackrock, Dublin | Aug 2025 | €2,030,000 | 221 m |
| Amberly, 17a Granville Rd, Blackrock | Jan 2025 | €1,255,000 | 231 m |
| 59 Granville Park, Blackrock, Dublin | May 2026 | €1,140,000 | 234 m |
| Reendonegan, Granvillle Rd, Blackrock | Apr 2026 | €2,397,500 | 242 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 received19 November 2021
- Decision issued18 January 2022
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
Permission for demolition of existing side single story extension. Construction of new dormer side extension…
9, Knocksinna Park, Dublin 18
D21B/0332Dún Laoghaire–RathdownLodged 2 Jul 2021Extension
- RefusedAt this site
For a detached bungalow with attic rooms at the rear, also the removal of existing side garage, side utility…
11, Knocksinna Park, Foxrock, Dublin 18
D05A/0384Dún Laoghaire–RathdownLodged 29 Mar 2005New dwelling
- Granted50 m away
Permission for: A. A single storey extension to the side of existing house, consisting of a kitchen. B.…
57 Granville Road, Blackrock, Co Dublin
D17B/0170Dún Laoghaire–RathdownLodged 12 Apr 2017Extension
- Granted60 m away
Planning permission is sought for the replacing of existing roof tiles with a new solar roof system to the…
3, Knocksinna Park, Foxrock, Dublin 18
D11B/0281Dún Laoghaire–RathdownLodged 22 Aug 2011Alterations
- Granted60 m away
Permission is sought for the provision of new single storey extension to front, new rooflight, elevational…
3, Knocksinna Park, Foxrock, Dublin 18
D10B/0407Dún Laoghaire–RathdownLodged 24 Sept 2010Extension
- Granted60 m away
Construction of single storey extension to the front and side elevation
1, KNOCKSINNA PARK, FOXROCK, DUBLIN 18
D04B/0662Dún Laoghaire–RathdownLodged 27 Aug 2004Extension
- Granted70 m away
Permission is sought for a dormer roof extension to the rear pitch of the existing house to extend the…
2 Newpark Lodge, Granville Road, Foxrock, Dublin 18.
D16B/0516Dún Laoghaire–RathdownLodged 15 Dec 2016Extension
- Granted80 m away
Construction of a single storey extension to the front, side and rear of the existing single storey dwelling…
4, Knocksinna Park, Dublin 18, D18N7X8
D23A/0622Dún Laoghaire–RathdownLodged 29 Sept 2023Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedExtension
Permission for construction of a single-story and first floor extension to the side and a single-story…
72 The Rise, Mount Merrion, Blackrock, Co. Dublin
D20B/0127Dún Laoghaire–RathdownLodged 5 May 2020
- RefusedExtension
Permission for demolition of existing side single story extension. Construction of new dormer side extension…
9, Knocksinna Park, Dublin 18
D21B/0332Dún Laoghaire–RathdownLodged 2 Jul 2021
- GrantedExtension
Permission to extend and existing dwelling by a total of 56.9sqm (Comprising (A) The construction of a ground…
Kilmaine , 8 Highfield Lawn , Model Farm Road
2139819Cork CityLodged 8 Jan 2021
- GrantedExtension
Permission for a new single storey extension to rear and two storey extension to south gable and front of…
5 South Hill Park, Booterstown, Blackrock, Co Dublin
D17A/0342Dún Laoghaire–RathdownLodged 11 Apr 2017
- InvalidExtension
Permission for — Proposed extensions to existing dwelling, including ground floor enclosure of existing…
32 Leopardstown Avenue, Stillorgan, Co Dublin A94 YT73
D18B/0502Dún Laoghaire–RathdownLodged 15 Nov 2018
- GrantedExtension
Permission for alterations and extension to dwelling house consisting of; front porch extension, two-storey…
Swallow's Rest Frenchfurze Carrigaline Co. Cork
24/6360corkLodged 10 Dec 2024
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