No. 4 Castleknock Mews, Old Navan Road, Castleknock, Dublin 15
Construction of a single-storey side extension to incorporate a granny flat and a garden room.
FW23A/0308 · Fingal County Council · Lodged 13 October 2023
- Reference
- FW23A/0308
- Authority
- Fingal County Council
- Register status
- Decided
- Type
- Permission
- Received
- 13 October 2023
Summary
AI-generatedThe development consists of a single-storey extension to the side of the existing dwelling at No. 4 Castleknock Mews. The new structure will incorporate a granny flat and a garden room.
- 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 the construction of a single storey extension to the side of existing dwelling. The extension will incorporate a granny flat and a garden room.
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 17 April 2024.
Notified floor area: 36 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 1 Castleknock Mews, Castleknock, Dublin 15not full market price | Jun 2026 | €57,914 | 30 m |
| 5 Cherangani, Old Navan Road, Dublin 15 | Jun 2026 | €826,000 | 137 m |
| 11 The Mills, Talbot Bridge, Castleknock Dublin 15 | Nov 2025 | €335,000 | 152 m |
| 6 Ashleigh Court, Castleknock, Dublin 15 | Sept 2025 | €377,500 | 214 m |
| 51woodpark, Castleknock, Dublin 15 | Nov 2025 | €920,000 | 220 m |
| 8 Huntington Lodge, Castleknock Road, Castleknock | Aug 2025 | €1,775,000 | 230 m |
| 16 Ashleigh Court, Castleknock, Dublin 15 | Jun 2025 | €341,000 | 248 m |
| 19 Ashleigh Court, Castleknock, Dublin 15 | Aug 2025 | €390,000 | 251 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 received13 October 2023
- Decision due7 December 2023
- Decision issued21 November 2023
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Part granted, part refused120 m away
Retention of the following items: (a) new wooden effect, steel clad
12th Lock Hotel, Old Navan Road, Castleknock, Dublin 15, D15 AW28
FW17A/0020FingalLodged 22 Feb 2017Retention
- Granted130 m away
The demolition of an existing single storey dwelling (and ancillary bu
Cherangani, Old Navan Road, Castleknock, Dublin 15
FW10A/0201FingalLodged 10 Mar 2011Demolition
- Granted130 m away
Permission for Development that shall consist of a variation to condit
Cherangani, Old Navan Road, Castleknock, Dublin 15
FW13A/0025FingalLodged 20 Mar 2013Alterations
- Granted140 m away
1 no. 2 storey extension to north elevation, 1 no. part 1 storey and p
Castleknock Lawn Tennis Club, Old Navan Road, Castleknock, Dublin 15
FW17A/0070FingalLodged 28 Apr 2017Commercial
- Granted140 m away
Permission for extensions., refurbishments and other alterations
Beechpark Avenue/Old Navan Road, Castleknock, Dublin 15
FW15A/0133FingalLodged 5 Oct 2015Alterations
- Granted180 m away
Proposed detached storey and a half swelling utilising the existing ve
Green Valley House, Castleknock, Dublin 15
FW13A/0082FingalLodged 6 Jan 2014New dwelling
- Invalid180 m away
Planning permission to construct a two storey domestic dwelling, site
Green Valley House, Castleknock, Dublin 15
FW12A/0063FingalLodged 5 Jul 2012New dwelling
- Withdrawn180 m away
Permission to construct a two storey domestic dwelling
Green Valley House, Castleknock, Dublin 15
FW12A/0093FingalLodged 20 May 2013New dwelling
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
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