6 Deerpark Close, Castleknock, Dublin 15, D15T8PD
Conversion of a garage to a granny flat and house alterations in Castleknock.
FW23A/0271 · Fingal County Council · Lodged 11 September 2023
- Reference
- FW23A/0271
- Authority
- Fingal County Council
- Register status
- Decided
- Type
- Permission
- Received
- 11 September 2023
Summary
AI-generatedPlanning permission is sought to convert an existing garage and store into a granny flat with a new pitched roof and a single-storey link to the main house. The project also includes alterations to the main dwelling, such as new dormers, rooflights, a front porch, and extended window openings.
- Storey
- 1
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
Planning permission for conversion of existing garage and store to a granny flat with new pitched roof, new store to rear and single storey link to existing dwelling, also alterations to existing dwelling including a new dormer, rooflight and porch to front, extended dormer and rooflight to rear, new extended opes to rear and sides, replacement of existing roof tiles throughout and all associated site works.
Land-use zoning
What this land is zoned for
“Provide for residential development and protect and improve residential amenity”
National zoning type: Existing residential
Objective set by the The Fingal Development Plan 2023 – 2029 (2023–2029). 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 |
|---|---|---|---|
| 16 Deerpark Dr, Castleknock, Dublin 15 | Jul 2025 | €2,600,000 | 65 m |
| 15 Deerpark Ave, Castleknock, Dublin 15 | Nov 2025 | €2,000,000 | 72 m |
| 13 Deerpark Drive, Castleknock, Dublin 15 | Jul 2025 | €1,450,000 | 156 m |
| 13 Deerpark Rd, Castleknock, Dublin 15 | Nov 2025 | €1,810,000 | 160 m |
| 16 Deerpark Lawn, Castleknock, Dublin 15 | Jan 2026 | €2,120,000 | 208 m |
| 1 Deerpark Road, Castleknock, Dublin 15 | Feb 2025 | €1,810,000 | 209 m |
| 62 Phoenix Park Avenue, Castleknockprice excludes VAT | May 2026 | €823,789 | 238 m |
| 29 Park View, Castleknock, Dublin 15 | Mar 2025 | €1,495,000 | 254 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 received11 September 2023
- Decision due5 November 2023
- Decision issued26 October 2023
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Granted50 m away
The development will consist of the removal of 2 no. existing chimneys to gable, construction of dormer to…
21 Deerpark Drive, Castleknock, Dublin 15, D15 K59A
FW25A/0127EFingalLodged 31 Mar 2025Extension
- Granted50 m away
Permission is sought for demolition of existing single storey garage /
21 Deerpark Drive, Castleknock, Dublin 15
FW14B/0003FingalLodged 15 Jan 2014Demolition
- Granted50 m away
Permission for the widening of the existing entrance gateway to 3.6m i
5 Deerpark Avenue, Castleknock, Dublin 15
FW16A/0014FingalLodged 4 Feb 2016Alterations
- Granted60 m away
Permission for a two room single storey residential extension at the r
17 Deerpark Drive, Castleknock, Dublin 15, D15 ENC5
FW21B/0156FingalLodged 19 Jan 2022Extension
- Granted60 m away
Planning permission is sought for attic conversion, new bedroom with n
17 Deerpark Drive Castleknock Dublin 15
FW23B/0003FingalLodged 17 Jan 2023Extension
- Granted60 m away
The development seeking permission will consist of the demolition of an existing conservatory and the…
17 Deerpark Drive, Castleknock, Dublin 15, D15 ENC5
FW25A/0377EFingalLodged 4 Sept 2025Extension
- Granted60 m away
Demolition of existing garage and construction of single storey side a
19 Deerpark Drive, Castleknock, Dublin 15
FW16B/0108FingalLodged 5 Oct 2016Extension
- Granted60 m away
Demolition of the existing 2 Storey, 3 bed dwelling and existing garag
3 Deerpark Close, Castleknock, Dublin 15
F07A/1037/E1FingalLodged 11 Oct 2012Demolition
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 extensions and alterations consisting of first floor extension to side of existing house over…
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D17A/0089Dún Laoghaire–RathdownLodged 31 Mar 2017
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Planning permission for the construction of — a single storey extension to the front of the existing garage…
10, Beechpark Avenue, Dublin 5
5436/22Dublin CityLodged 14 Dec 2022
- GrantedExtension
Change of use of existing attached garage to a granny flat with a dormer attic conversion overhead and a…
Ballynacarriga, Kilworth, Co .Cork,
225490corkLodged 27 Jun 2022
- GrantedExtension
Planning permission for construction of — a part single / part 2 storey granny flat to the front, side and…
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2684/20Dublin CityLodged 11 May 2020
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Extension of existing garage to side and front of existing dwelling; first floor extension over existing and…
9, Tassaggart Drive, Coldwater Lakes, Saggart, Co. Dublin.
SD15B/0048South DublinLodged 23 Feb 2015
- Awaiting decisionExtension
Permission for (a) The removal of the existing roof of the main dwelling and the modification of the existing…
Ballycurreen Glounthaune Co. Cork
25/5747corkLodged 1 Sept 2025
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