12, Saint Margarets, Cross Avenue, Blackrock, Dublin, A94XE64
Demolition of an existing side and rear extension to build a new single-storey side and rear extension.
D23B/0110 · Dun Laoghaire Rathdown County Council · Lodged 14 March 2023
- Reference
- D23B/0110
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 14 March 2023
Summary
AI-generatedThe project involves the demolition of an existing side and rear extension. It will be replaced with a new single-storey side and rear extension and associated services.
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
- Demolition of existing side and rear extension
- Provision of new single storey side and rear extension and
- All associated services
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 | 99 m |
| 6 Saint James, Cross Avenue, Blackrockprice excludes VAT | Dec 2025 | €832,599 | 100 m |
| 5 Saint James, Cross Avenue, Blackrockprice excludes VAT | Dec 2025 | €2,114,537 | 103 m |
| Sperrin, Cross Avenue, Blackrock | Aug 2025 | €1,950,000 | 109 m |
| Dunboden, Cross Ave, Blackrock | Jun 2026 | €2,325,000 | 124 m |
| 1 St. James, Cross Avenue, Blackrockprice excludes VAT | Dec 2025 | €2,158,590 | 131 m |
| 3 St. James, Cross Avenue, Blackrockprice excludes VAT | Jul 2025 | €2,114,540 | 131 m |
| 7 St James, Cross Avenue, Blackrockprice excludes VAT | Dec 2025 | €975,000 | 131 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 received14 March 2023
- Decision due8 May 2023
- Decision issued4 May 2023
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Granted40 m away
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
- Granted40 m away
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
Permission is sought for the construction of a two storey extension at the side / rear of the dwelling,…
Somerton, Cross Avenue, Blackrock, Co. Dublin
D09B/0371Dún Laoghaire–RathdownLodged 27 Aug 2009Extension
- Granted50 m away
Permission is sought for proposed alterations to, and within the curtilage of, an existing protected…
Dunamase, Cross Avenue, Blackrock, Co. Dublin
D12A/0441Dún Laoghaire–RathdownLodged 8 Nov 2012Alterations
- Withdrawn50 m away
Permission is sought for proposed extension and alterations to and within the curtilage of a Protected…
Dunamase, Cross Avenue, Blackrock, Co. Dublin
D17A/0827Dún Laoghaire–RathdownLodged 13 Sept 2017Extension
- Granted50 m away
Permission for extension and alterations to and within the curtilage of a Protected Structure, consisting of…
Dunamase, Cross Avenue, Blackrock, Co. Dublin
D18A/0203Dún Laoghaire–RathdownLodged 8 Mar 2018Extension
- Granted50 m away
Retention permission alteration to previously approved planning reg ref D18A/0203 for — Alterations to the…
Dunamase, Cross Avenue, Booterstown, Blackrock, Dublin, A94H2P9 Protected Structure
D23A/0116Dún Laoghaire–RathdownLodged 22 Feb 2023Retention
- Granted60 m away
Permission for Retention of the following amendments to the permission granted under Ref. D15A/0203 that will…
The Orchard, Cross Avenue, Blackrock, Co Dublin
D17A/1005Dún Laoghaire–RathdownLodged 16 Nov 2017Retention
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
Demolition of existing single storey extension to the rear and side and construction of new single storey…
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WEB1596/25Dublin CityLodged 20 Mar 2025
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Demolition of rear and side extension, new side single storey side and front extension
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WEB1683/24Dublin CityLodged 31 May 2024
- Awaiting decisionExtension
Demolition of side single storey extension — erection of two storey side extension & single storey rear…
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234670corkLodged 6 Apr 2023
- GrantedExtension
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D04B/0619Dún Laoghaire–RathdownLodged 6 Aug 2004
- GrantedExtension
Demolition of single storey rear extension, construction of new 2 storey side extension and single storey…
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SD04B/0293South DublinLodged 9 Jun 2004
Community
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