No.21, Coldwell Street, Sandycove, Co. Dublin, A96YN81
Retention of a single-storey rear extension and internal alterations including a mezzanine floor.
D25B/0248 · Dun Laoghaire Rathdown County Council · Lodged 9 May 2025
- Reference
- D25B/0248
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission for Retention
- Received
- 9 May 2025
Summary
AI-generatedRetention permission is sought for an 11.3 square metre single-storey flat roof extension that replaced an old scullery and outdoor toilet. The application also seeks to retain internal alterations, including an 11.5 square metre mezzanine floor inside the original cottage.
- Floor area
- 23 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
The retention of a single storey flat roof extension of 11.3 sqm which replaced the original scullery & outdoor wc of 6.4 sqm, and the retention of internal alteration including a mezzanine floor (11.5sqm) to the original cottage plus all associated site development works. All to the rear of the existing cottage no. 21 coldwell street.
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.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 22 Coldwell St, Glasthule, Dublin | Aug 2025 | €450,000 | 5 m |
| 30 Coldwell St, Glasthule, Dun Laoghaire | Mar 2026 | €320,000 | 22 m |
| 15 Coldwell St, Glasthule, Dublin | May 2025 | €540,000 | 26 m |
| 35 Coldwell St, Glasthule, Sandycove | Nov 2025 | €411,000 | 28 m |
| 16 Findlater St, Glasthule, Dublin | Jan 2025 | €460,000 | 37 m |
| 12 Findlater St, Glasthule, Dun Laoghaire | Oct 2025 | €503,000 | 43 m |
| 9 Coldwell St, Glasthule, Dublin | Dec 2025 | €405,000 | 51 m |
| 95 Eden Villas, Glasthule, Dublin | May 2026 | €750,000 | 55 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 received9 May 2025
- Decision due3 July 2025
- Decision issued30 June 2025
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- GrantedAt this site
Permission is sought for: demolition of existing single storey rear extension; construction of new two storey…
22 Coldwell Street, Glasthule, Co. Dublin. A96 P974
D22A/0447Dún Laoghaire–RathdownLodged 23 Jun 2022Extension
- GrantedAt this site
Permission is sought for demolition of existing single storey return; construction of new part single, part…
20 Coldwell Street, Glasthule, Co. Dublin, A96 HD76
D20B/0400Dún Laoghaire–RathdownLodged 4 May 2021Extension
- RefusedAt this site
For extensions and alterations. Demolition of existing kitchen & bathroom to rear and new 2 storey extension…
20, Coldwell Street, Glasthule, Co Dublin
D07A/0724Dún Laoghaire–RathdownLodged 29 May 2007Extension
- GrantedAt this site
Permission is sought. The development will consist of construction of a new two storey extension (750mm above…
23, Coldwell Street, Glasthule, Co. Dublin
D14B/0328Dún Laoghaire–RathdownLodged 1 Oct 2014Extension
- GrantedAt this site
Permission sought for demolition of single storey out buildings to rear and new bedroom and bathroom…
24, Coldwell Street, Glasthule, Co Dublin
D13B/0103Dún Laoghaire–RathdownLodged 2 Apr 2013Extension
- GrantedAt this site
A single storey first floor rear extension above an existing single rear kitchen extension with 4 velux type…
86, Eden Villas, Glasthule, Dun Laoghaire, Co. Dublin
D04B/0412Dún Laoghaire–RathdownLodged 26 May 2004Extension
- GrantedAt this site
Permission for a 11.25 sqm single storey flat roofed, rendered extension and a 16.8 sqm rendered first floor…
25 Coldwell Street, Glasthule, Co Dublin
D19B/0214Dún Laoghaire–RathdownLodged 20 Jun 2019Extension
- GrantedAt this site
Second storey extension over existing kitchen extension and single storey extension to rear
87, Eden Villas, Glasthule, Co. Dublin.
D04B/0450Dún Laoghaire–RathdownLodged 9 Jun 2004Extension
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