11, Mount Merrion Avenue, Blackrock, Co. Dublin.
Single and part two-storey rear extension and alterations to a protected structure.
D04A/1542 · Dun Laoghaire Rathdown County Council · Lodged 22 December 2004
- Reference
- D04A/1542
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 22 December 2004
Summary
AI-generatedThe application proposes a single-storey and part two-storey addition to the rear of the property, along with associated alterations. The property is a designated 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
Single storey and part 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 | 58 m |
| 11 Westfield, Sion Hill, Blackrocknot full market price | Jun 2026 | €211,218 | 70 m |
| 2 Rock Road Place, Blackrockprice excludes VAT | Oct 2025 | €1,387,665 | 99 m |
| 2 Sydney Mews, Sydney Avenue, Blackrock | Jun 2025 | €1,300,000 | 108 m |
| 31 Castledawson, Sion Hill Rock Road, Blackrock | May 2026 | €620,000 | 118 m |
| 25 Castledawson, Sion Hill, Blackrock | Sept 2025 | €549,000 | 129 m |
| 44 Westfield, Rock Rd, Sion Hill | Jan 2025 | €730,000 | 140 m |
| 43 Mount Merrion Ave, Blackrock, Dublin | Feb 2025 | €865,000 | 159 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 received22 December 2004
- Decision issued18 February 2005
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
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
For single storey and part two storey addition to rear and alterations (A Protected Structure)
11, Mount Merrion Avenue, Blackrock, Co. Dublin
D05A/1073Dún Laoghaire–RathdownLodged 17 Aug 2005Extension
- 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
- Granted30 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
Extension to the front and rear (part of which is two storey) with associated minor alterations
34, Forest Close, Dublin 24
SD08B/0607South DublinLodged 26 Aug 2008
- GrantedExtension
Single storey extension to the front elevation, extending to two storeys the existing single storey side…
54, The Coppice, Palmerstown, Dublin 20.
SD05B/0743South DublinLodged 28 Nov 2005
- RefusedExtension
Single storey extension to the south gable, modifications to roof to form semi hipped ends to main roof and…
5 Rathmichael Haven North, Rathmichael, Co. Dublin.
D02B/0749Dún Laoghaire–RathdownLodged 8 Oct 2002
- GrantedExtension
Alterations and single storey extension to side and rear
85 Templeroan Avenue, Templeogue, Dublin 16 .
S99B/0353South DublinLodged 2 Jun 1999
- GrantedRetention
Retention of single storey extension to rear and elevational changes to front
11 Vesey Park, Lucan, Co. Dublin.
S00B/0300South DublinLodged 11 May 2000
- GrantedExtension
Alterations to an existing house including the erection of a part single storey, part two storey extension to…
40, Mckee Park, Cabra West, Dublin 7, D07 AW2A
WEB1221/24Dublin CityLodged 28 Feb 2024
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