MC O'Sullivan Building, Ashurst, Mount Merrion Avenue, Co. Dublin.
Demolition of a three-storey office block to build 45 apartments in a block up to seven storeys high in Blackrock.
D04A/1054 · Dun Laoghaire Rathdown County Council · Lodged 28 February 2005
- Reference
- D04A/1054
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 28 February 2005
Summary
AI-generatedThe project involves demolishing an existing three-storey office building. In its place, a new apartment block ranging from five to seven storeys will be built, containing 45 apartments, a semi-basement car park, and balconies.
- Residential units
- 45
- Storeys
- 7
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 3 storey office block and development of 45 no. Apartments (12 no. 1 beds, 32 no. 2 beds, 1 no. 3 bed) in a 5 storey block with semi-basement carparking level and balconies front and rear with a 7 storey corner block element facing stillorgan road, 50 no. Below entry level, carparking spaces accessed from existing vehicular access to the site from mount merrion avenue, pedestrian and bicycle access will be through 3 no. New gated entrances to stillorgan road with existi...
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 |
|---|---|---|---|
| 28 Merrion Hall, Mount Merrion Ave, Blackrock | Feb 2025 | €600,000 | 7 m |
| 26 Ashurst, Mount Merrion Ave, Blackrock | Aug 2025 | €510,500 | 64 m |
| 95 Merrion Park, Blackrock, Co. Dublin | Sept 2025 | €1,120,000 | 93 m |
| 79 Merrion Park, Blackrock, Co Dublin | Nov 2025 | €1,330,000 | 106 m |
| Apt 6, Fortwilliam, Mount Merrion Ave | Jun 2025 | €460,000 | 123 m |
| 78 Merrion Park, Booterstown, Blackrock | Feb 2025 | €920,000 | 124 m |
| 87 Merrion Park, Hill Ave South, Blackrock | Dec 2025 | €840,000 | 143 m |
| 4 Dualla Court, Stillorgan Rd, Stillorgan | Jan 2025 | €485,000 | 168 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 received28 February 2005
- Decision issued23 March 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
Permission for Retention of development for an in situ 'Parcel Motel' structure. This structure is currently…
Applegreen Service Station, Mount Merrion, Stillorgan Road, C. Dublin A94 A281
D18A/0934Dún Laoghaire–RathdownLodged 2 Oct 2018Retention
- Granted40 m away
Demolition of existing service station including retail building, car wash, and ancillary site features —…
Ashurst Service Station, Stillorgan Road, Mount Merrion, Co Dublin
D09A/0032Dún Laoghaire–RathdownLodged 8 May 2009Commercial
- Refused40 m away
Permission sought for the demolition of the existing self-service area and associated petrol pumps and car…
Former Ashurst Shell Self Service, Stillorgan Road, Mount Merrion, Co Dublin
D07A/0361Dún Laoghaire–RathdownLodged 16 Mar 2007Apartments
- Granted50 m away
Planning permission is sought for a single storey extension to the side and rear
102, Merrion Park, Blackrock, Co. Dublin.
D11B/0147Dún Laoghaire–RathdownLodged 26 Apr 2011Extension
- Granted70 m away
For demolition of existing detached garage to side, construction of new full two-storey plus attic room,…
27, Greygates, Mount Merrion, Stillorgan Road, Co. Dublin
D06A/0408Dún Laoghaire–RathdownLodged 12 Sept 2006New dwelling
- Granted70 m away
Vary a previous approval (reg. ref. D07A/1296) for a construction of two storey house. The variation involves…
27, Greygates, Mount Merrion, Stillorgan Road, Co. Dublin
D08A/0332Dún Laoghaire–RathdownLodged 20 Mar 2008Alterations
- Granted70 m away
Permission is sought for alterations to existing planning application Reg Ref D06A/0408 to include proposed…
27, Greygates, Mount Merrion, Stillorgan Road, Co. Dublin
D07A/0805Dún Laoghaire–RathdownLodged 14 Jun 2007Extension
- Granted70 m away
Alterations to existing planning permissions Reg. Ref. D07A/0805 & D06A/0408 to include revision to chimney,…
27, Greygates, Mount Merrion, Stillorgan Road, Co. Dublin
D07A/1296Dún Laoghaire–RathdownLodged 11 Sept 2007Alterations
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- InvalidApartments
The development involves the demolition of all existing structures on the site of 0.5256 hectares and the…
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D05A/0738Dún Laoghaire–RathdownLodged 13 Jun 2005
- GrantedApartments
The development will consist of the construction of 7 no. apartments with balconies/terraces in a 2-storey…
Site on Stillorgan Park Avenue & Stillorgan Park, Blackrock, Co. Dublin
D05A/0372Dún Laoghaire–RathdownLodged 5 Aug 2005
- GrantedApartments
For amendments to previously approved development (D04A/0627 PL06D.209957) to include (a) 7 no. (6 no.…
Booterstown Avenue,Stillorgan Road,South Hill Park, Booterstown, Co. Dublin
D05A/1532Dún Laoghaire–RathdownLodged 29 Nov 2005
- GrantedApartments
The development will consist of reconfiguring and extending to change from 1no. 4 bedroom dwelling house over…
4, Belville Mews, Stillorgan Road, Donnybrook, Dublin 4
2921/20Dublin CityLodged 26 Jun 2020
- GrantedApartments
The development will consist of demolition of existing underutilised 2 no. storey building (390 sqm) and…
The Pavilion, 204-205 Merrion Road, Dublin 4, D04 EC86
4461/19Dublin CityLodged 14 Nov 2019
- RefusedHousing estate
Permission for a residential development. The works will involve the demolition of the existing 2-storey…
Amberley, 2 Stillorgan Park Avenue, Blackrock, Co Dublin
D14A/0821Dún Laoghaire–RathdownLodged 1 Apr 2015
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