The Cottage, Greenvalley Lane, Castleknock, Castleknock, D15HA22
Retention of a rear extension and permission for a new side and rear extension.
FW23A/0055 · Fingal County Council · Lodged 13 March 2023
- Reference
- FW23A/0055
- Authority
- Fingal County Council
- Register status
- Decided
- Type
- Permission and Retention
- Received
- 13 March 2023
Summary
AI-generatedThis application seeks retention planning permission for an existing single-storey rear extension. It also requests permission for a new extension to the side and rear, featuring three rooflights in its flat roof.
- 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
A) retention planning permission for a single storey extension to the rear b) planning permission for new extension to the side and rear c) 3no. Rooflights to flat roof of new extension, d) 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.
Built — construction complete
A commencement notice records works starting on 17 August 2023.
Notified floor area: 14.55 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 8 Huntington Lodge, Castleknock Road, Castleknock | Aug 2025 | €1,775,000 | 65 m |
| 51woodpark, Castleknock, Dublin 15 | Nov 2025 | €920,000 | 120 m |
| 11 The Mills, Talbot Bridge, Castleknock Dublin 15 | Nov 2025 | €335,000 | 167 m |
| 61 Woodpark, Castleknock, Dublin 15 | Jul 2025 | €920,000 | 181 m |
| 1 Castleknock Mews, Castleknock, Dublin 15not full market price | Jun 2026 | €57,914 | 187 m |
| 4 Sandlewood, Castleknock Rd, Castleknock Dublin 15 | Mar 2026 | €290,000 | 191 m |
| 8 Shandlewood Apts, Castleknock, Dublin 15 | Apr 2026 | €296,000 | 191 m |
| 6 Ashleigh Court, Castleknock, Dublin 15 | Sept 2025 | €377,500 | 194 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 March 2023
- Decision due9 April 2023
- Decision issued27 April 2023
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Withdrawn40 m away
Permission to construct a two storey domestic dwelling
Green Valley House, Castleknock, Dublin 15
FW12A/0093FingalLodged 20 May 2013New dwelling
- Invalid40 m away
Planning permission to construct a two storey domestic dwelling, site
Green Valley House, Castleknock, Dublin 15
FW12A/0063FingalLodged 5 Jul 2012New dwelling
- Granted40 m away
Permission for development at this site. The development will consist
Green Valley House, Castleknock, Dublin 15
FW14A/0136FingalLodged 31 Oct 2014Alterations
- Granted40 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
- Granted50 m away
The construction of 2 no. three storey detached dwellings, on site pre
Sites to the rear of Huntington Lodge, Castleknock Road, Dublin 15, Du
FW20A/0112FingalLodged 28 May 2021New dwelling
- Refused60 m away
Permission sought for a detached two storey, three bedroom dwelling in
Bridge House, Green Valley, Castleknock, Dublin 15
FW11A/0087FingalLodged 26 Jul 2011New dwelling
- Granted60 m away
Permission for a detached, two storey, three bedroom dwelling
Bridge House, Green Valley, Castleknock, Dublin 15
FW13A/0066FingalLodged 9 Jan 2014New dwelling
- Granted60 m away
Permission for single storey extension to rear
Bridge House, Green Valley, Castleknock, Dublin 15
FW15B/0001FingalLodged 15 Jan 2015Extension
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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