5 Diswellstown Manor, Castleknock, Dublin 15
Addition of a dormer window with a flat roof to the rear of the property.
FW21B/0077 · Fingal County Council · Lodged 7 May 2021
- Reference
- FW21B/0077
- Authority
- Fingal County Council
- Register status
- Decided
- Type
- Permission
- Received
- 7 May 2021
Summary
AI-generatedPlanning permission is sought to add a dormer window with a flat roof. The window will be installed to the rear of the property at Diswellstown Manor.
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 to add dormer window with flat roof to the rear of the prop
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.
Built — construction complete
A commencement notice records works starting on 2 May 2022.
Notified floor area: 37.5 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 6 Diswellstown Manor, Porterstown Road, Castleknock | Apr 2025 | €850,000 | 8 m |
| 40 Diswellstown Drive, Castleknock, Dublin 15 | Jul 2025 | €750,000 | 54 m |
| 36 Diswellstown Drive, Castleknock, Dublin 15 | Apr 2025 | €710,000 | 69 m |
| 34 Diswellstown Drive, Castleknock, Dublin 15 | Feb 2025 | €681,000 | 74 m |
| 7 Diswellstown Place, Castleknock, Dublin 15 | Dec 2025 | €700,000 | 156 m |
| 22 Diswelstown Park, Castleknock, Dublin 15 | Sept 2025 | €782,500 | 166 m |
| 17 Crofton Hall, Diswellstown, Castleknock | Jun 2025 | €453,000 | 170 m |
| 20 Diswellstown Park, Castleknock, Dublin 15 | Jun 2025 | €777,500 | 171 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 received7 May 2021
- Decision due1 July 2021
- Decision issued28 June 2021
- Grant issued5 August 2021
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
Development will consist of retention of an existing velux window on the front roof
40 Diswellstown Drive, Dublin 15, D15 E8DV
FW24A/0491EFingalLodged 22 Nov 2024Retention
- Refused50 m away
Construction of a 62.7m2 extension to the side of existing dwelling
14 Diswellstown Court, Castleknock, Dublin 15, D15 CYW3
FW23B/0024FingalLodged 14 Mar 2023Extension
- Refused60 m away
Construction of a single-storey family flat extension to the side of existing dwelling
14 Diswellstown Court, Castleknock, Dublin 15, D15 CYW3
FW23A/0337FingalLodged 7 Nov 2023Extension
- Granted60 m away
Construction of a single-storey family flat extension to the side of existing dwelling
14 Diswellstown Court, Castleknock, Dublin 15, D15 CYW3
FW24A/0301EFingalLodged 21 Jul 2024Extension
- Granted60 m away
Development will consist of retention of an existing velux window on the front roof
38 Diswellstown Drive, Dublin 15, D15 A3WT
FW25A/0037EFingalLodged 7 Feb 2025Retention
- Granted70 m away
The development will consist of :Attic conversion for storage with a dormer window and rooflight to the…
36 Diswellstown Drive, Hamilton Park, Dublin 15, D15YA9Y
FW26A/0089EFingalLodged 7 Mar 2026Extension
- Granted80 m away
Development will consist of retention of an existing velux window on t
32 Diswellstown Drive, Castleknock, Dublin, D15TPA0
FW25A/0139EFingalLodged 8 Apr 2025Retention
- Granted90 m away
The development will consist of — construction of a two storey flat roof rear extension to consist of…
4 Diswellstown Court, Hamilton Park, Dublin 15, D15 Y18V
FW23A/0401FingalLodged 22 Dec 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 to construct a rear flat roofed dormer window
16, Newbridge Avenue, Sandymount, Dublin 4, D04 P0E8
2578/21Dublin CityLodged 13 Apr 2021
- GrantedExtension
Permission for a dormer window to the rear
33 Park View, Castleknock, Dublin 15
FW14B/0014FingalLodged 27 Feb 2014
- GrantedExtension
Permission for the construction of a new dormer window to the rear of the main roof
37 Melrose Avenue, Fairview, Dublin 3, D03 A8F1
3857/23Dublin CityLodged 30 May 2023
- GrantedExtension
Permission to construct a dormer window to the front slope of the existing main roof
18/20 Lower Kilmacud Road, Stillorgan, Co Dublin
D16A/0085Dún Laoghaire–RathdownLodged 11 Feb 2016
- GrantedExtension
Permission to construct new flat roof dormer window at attic level to front
32, Sion Hill Park, Dublin 9
2404/18Dublin CityLodged 28 Feb 2018
- GrantedAlterations
Permission to construct roof dormer window to front elevation
No.3 Arundel Villas , Old Blackrock Road , Cork
2039059Cork CityLodged 29 Jan 2020
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