Somerton, Cross Avenue, Blackrock, Co. Dublin
Construction of a two-storey side and rear extension to an existing house, with alterations to a detached gym.
D09B/0371 · Dun Laoghaire Rathdown County Council · Lodged 27 August 2009
- Reference
- D09B/0371
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 27 August 2009
Summary
AI-generatedThe development will consist of a two-storey extension at the side and rear of the dwelling. It includes alterations to elevations, a new roof light, a relocated rear terrace, and alterations to a detached gymnasium building.
- Storeys
- 2
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 is sought for the construction of a two storey extension at the side / rear of the dwelling, alterations to elevations, new roof light, re-located rear terrace, alterations to detached gymnasium building and all associated internal alterations and site works.
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 |
|---|---|---|---|
| Bellevue, Cross Ave, Blackrock | Jul 2025 | €2,380,000 | 87 m |
| Dunboden, Cross Ave, Blackrock | Jun 2026 | €2,325,000 | 135 m |
| Sperrin, Cross Avenue, Blackrock | Aug 2025 | €1,950,000 | 138 m |
| 6 Saint James, Cross Avenue, Blackrockprice excludes VAT | Dec 2025 | €832,599 | 145 m |
| 5 Saint James, Cross Avenue, Blackrockprice excludes VAT | Dec 2025 | €2,114,537 | 147 m |
| 7 St James, Cross Avenue, Blackrockprice excludes VAT | Dec 2025 | €975,000 | 175 m |
| No.2 St. James, Cross Avenue, Blackrockprice excludes VAT | Sept 2025 | €2,114,540 | 175 m |
| 3 St. James, Cross Avenue, Blackrockprice excludes VAT | Jul 2025 | €2,114,540 | 175 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 received27 August 2009
- Decision issued9 October 2009
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 for development consisting of demolition of existing single storey sun room to front south west…
Somerton, Cross Avenue, Booterstown, Blackrock, Co Dublin, A94C6P6
D20A/0775Dún Laoghaire–RathdownLodged 23 Oct 2020Extension
- GrantedAt this site
Retain an extension to the rear, consisting of the construction of a garden room at lower ground floor level,…
Somerton, Cross Avenue, Blackrock, Co. Dublin
D08A/0536Dún Laoghaire–RathdownLodged 9 May 2008Retention
- Granted40 m away
Demolition of existing side and rear extension — Provision of new single storey side and rear extension and
12, Saint Margarets, Cross Avenue, Blackrock, Dublin, A94XE64
D23B/0110Dún Laoghaire–RathdownLodged 14 Mar 2023Extension
- Granted50 m away
For extensions to existing bedrooms at attic floor level and alterations to windows on previously approved…
The Willows, Cross Avenue, Blackrock, Co. Dublin
D04B/0538Dún Laoghaire–RathdownLodged 7 Jul 2004Extension
- Granted50 m away
Extension to existing self contained flat at Garden Level to provide new kitchen / dining area, extension to…
The Willows, Off Cross Avenue, Blackrock, Co. Dublin
D03B/0608Dún Laoghaire–RathdownLodged 9 Oct 2003Extension
- Granted50 m away
Three dormer windows on the south elevation of the existing dwelling
The Willows, Cross Avenue, Blackrock, Co. Dublin
D05B/0529Dún Laoghaire–RathdownLodged 7 Jul 2005Extension
- Granted50 m away
Extension to the existing living room at ground floor level, the provision of an attic room with rooflight at…
The Willows, Cross Avenue, Blackrock, Dublin
D04B/0156Dún Laoghaire–RathdownLodged 4 Mar 2004Extension
- Granted50 m away
Retention of development permission is sought for the following: Extending the east facade at lower ground…
The Willows, Off Cross Avenue, Blackrock, Co. Dublin
D11B/0124Dún Laoghaire–RathdownLodged 8 Apr 2011Retention
Related developments
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Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
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