11, Mount Merrion Avenue, Blackrock, Co. Dublin
Single and part two-storey rear extension and alterations to a protected structure.
D05A/1073 · Dun Laoghaire Rathdown County Council · Lodged 17 August 2005
- Reference
- D05A/1073
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 17 August 2005
Summary
AI-generatedThis application is for a single-storey and part two-storey addition to the rear of the property, including alterations. The building is listed as a Protected Structure.
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
For single storey and part two storey addition to rear and alterations (a protected structure) .
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 |
|---|---|---|---|
| Apt 17 Westfield, Sion Hill, Blackrock Dublin | Jul 2025 | €476,000 | 61 m |
| 11 Westfield, Sion Hill, Blackrocknot full market price | Jun 2026 | €211,218 | 73 m |
| 2 Rock Road Place, Blackrockprice excludes VAT | Oct 2025 | €1,387,665 | 102 m |
| 2 Sydney Mews, Sydney Avenue, Blackrock | Jun 2025 | €1,300,000 | 103 m |
| 31 Castledawson, Sion Hill Rock Road, Blackrock | May 2026 | €620,000 | 122 m |
| 25 Castledawson, Sion Hill, Blackrock | Sept 2025 | €549,000 | 133 m |
| 44 Westfield, Rock Rd, Sion Hill | Jan 2025 | €730,000 | 141 m |
| 43 Mount Merrion Ave, Blackrock, Dublin | Feb 2025 | €865,000 | 158 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 received17 August 2005
- Decision issued11 October 2005
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- RefusedAt this site
Single storey and part part two storey addition to rear and alterations. A Protected Structure
11, Mount Merrion Avenue, Blackrock, Co. Dublin.
D04A/1542Dún Laoghaire–RathdownLodged 22 Dec 2004Extension
- GrantedAt this site
Revert existing bathroom on first floor back to a bedroom and form new bathroom and en-suite in large bedroom…
11 Mount Merrion Avenue, Blackrock, Co. Dublin.
D02B/0118Dún Laoghaire–RathdownLodged 8 Mar 2002Alterations
- GrantedAt this site
Permission is sought for works, consisting of a 6m2 metal-roofed bay window extension in the location of an…
9 Mount Merrion Avenue, Blackrock, County Dublin, A94 R7D6 a protected structure
D21A/1153Dún Laoghaire–RathdownLodged 22 Dec 2021Extension
- GrantedAt this site
Retention of a single storey 29.7 sq. meter bedroom and conservatory extension to the rear. (A Protected…
15, Mount Merrion Avenue, Blackrock, Co. Dublin.
D04A/0449Dún Laoghaire–RathdownLodged 26 Apr 2004Retention
- Granted30 m away
Demolition and replacement of existing external stairs, and deck to the rear of the property, (a protected…
17, MOUNT MERRION AVENUE, BLACKROCK, CO. DUBLIN
D04A/1185Dún Laoghaire–RathdownLodged 11 Oct 2004Alterations
- Granted30 m away
The development will consist of — Formation of a car port to the end of the rear garden including PV panels…
5, Mount Merrion Avenue, Blackrock, Dublin, A94W9P2 (Protected Structure)
D26A/0302/WEBDún Laoghaire–RathdownLodged 26 Mar 2026Alterations
- Granted40 m away
Single storey pavilion of approximately 20sq.m to rear garden. (Protected Structure)
5, Mount Merrion Avenue, Blackrock, Co. Dublin
D08A/1247Dún Laoghaire–RathdownLodged 14 Nov 2008Extension
- Awaiting decision50 m away
Construction of new single storey extension to the side at first floor level — Minor modifications to…
Peafield Mews, Ben Inagh Park, Blackrock, Co. Dublin, A94F7Y5
D26B/0414/WEBDún Laoghaire–RathdownLodged 17 Jul 2026Extension
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
PROTECTED STRUCTURE: Permission to construct single storey rear extension & associated works
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2945/20Dublin CityLodged 30 Jun 2020
- GrantedAlterations
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Mill House, Enniskerry Road, Kiltiernan, Co. Dublin
D06A/0803Dún Laoghaire–RathdownLodged 2 Nov 2006
- GrantedExtension
Permission for single storey extension to the rear with rooflight, alterations and extension at first floor…
Lonsdale, Ballycorus Road, Kilternan, Dublin 18
D14A/0010Dún Laoghaire–RathdownLodged 26 May 2014
- GrantedExtension
PROTECTED STRUCTURE;Construct a single storey rear extension, including minor internal alterations
29, Highfield Road, Rathgar, Dublin 6
2306/18Dublin CityLodged 14 Feb 2018
- GrantedExtension
A PROTECTED STRUCTURE - for internal alterations, single storey rear extension, replacement windows and all…
No. 15 Catherine Street , Waterford
16496WaterfordLodged 20 Jul 2016
- Awaiting decisionExtension
Single storey extension to rear from ground floor level over lower ground floor level with connection to all…
3 Old Brighton Terrace , Parnell Road , Bray
2199WicklowLodged 5 Feb 2021
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