Osborne House, 36, Seapoint Avenue, Blackrock, Dublin
Demolition of a garage and annexe, conversion from three residential units to two, and a new two-storey side extension.
D07A/1085 · Dun Laoghaire Rathdown County Council · Lodged 11 January 2008
- Reference
- D07A/1085
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 11 January 2008
Summary
AI-generatedThe application at Osborne House seeks the demolition of a detached double garage and side annexe. It proposes converting the property from three residential units to two, alongside constructing a new two-storey sunroom and stairway extension.
- Residential units
- 2
- 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 demolition of single storey detached double garage and single storey annexe extension at side of house, change of use from three residential units to two residential units, with facility for inter-connecting these, alterations and refurbishment , construction of a new two storey sunroom and stairway extension to side of house, new entrance gates and boundary fence at original garage entrance and asociated 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 |
|---|---|---|---|
| St Marys, Tobernea Terrace, Seapoint Ave | Feb 2026 | €620,000 | 166 m |
| 12 Alma Rd, Monkstown, Dublin | Mar 2025 | €1,900,000 | 181 m |
| Carrig Rua, Temple Crescent, Blackrock | Feb 2026 | €1,500,000 | 186 m |
| 14 Seapoint Court, Temple Crescent, Blackrock | Aug 2025 | €580,000 | 207 m |
| 11 Seapoint Court, Blackrock, Co Dublinnot full market price | Mar 2026 | €19,296 | 207 m |
| 7 Seapoint Court, Temple Crescent, Blackrock | May 2025 | €530,000 | 218 m |
| 4 Seapoint Court, Temple Crescent, Blackrock | Aug 2025 | €440,000 | 233 m |
| 8 Alma Court, Alma Road, Monkstown | May 2026 | €485,000 | 248 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 received11 January 2008
- Decision issued7 February 2008
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 general refurbishment and alteration works, including — New entrance gates and boundary…
38 Seapoint Avenue, Blackrock, Co Dublin (A Protected Structure)
D15A/0583Dún Laoghaire–RathdownLodged 9 Nov 2015Alterations
- GrantedAt this site
Permission is sought for alterations to the previously granted planning permission Reg. Ref: D17A/0239 &…
The Coach Houses Site, Seapoint Avenue, Blackrock, Co. Dublin with driveway works in the curtilage of the Protected Structure Osborne House, Seapoint Avenue, Blackrock, Co. Dublin
D17A/1097Dún Laoghaire–RathdownLodged 13 Dec 2017Alterations
- RefusedAt this site
Permission is sought for alterations to the previously granted planning permission Reg. Ref: D17A/0239 &…
The Coach Houses Site, Seapoint Avenue, Blackrock, Co. Dublin with driveway works in the curtilage of the Protected Structure Osborne House, Seapoint Avenue, Blackrock, Co. Dublin
D17A/1097/EDún Laoghaire–RathdownLodged 4 Apr 2023Alterations
- Granted30 m away
Permission is sought for alterations to the ground floor level of the previously granted planning permission…
The Coach Houses Site, Seapoint Avenue, Blackrock, Co. Dublin with driveway works in the curtilage of the Protected Structure Osborne House, Seapoint Avenue, Blackrock, Co. Dublin
D17A/0239Dún Laoghaire–RathdownLodged 16 Mar 2017Alterations
- Granted30 m away
Permission for the construction of a two storey over basement house with access by means of a right of way…
Coach Houses Site, Seapoint Avenue, Blackrock, Co Dublin
D16A/0307Dún Laoghaire–RathdownLodged 8 Aug 2016New dwelling
- Withdrawn30 m away
Development and upgrading works at Seapoint. The works consist of removal of a section (approximately 3.5m in…
Seapoint Dart Station, Seapoint Avenue, Blackrock, Co. Dublin
D03A/0573Dún Laoghaire–RathdownLodged 16 Jun 2003Infrastructure
- Granted30 m away
Permission is sought for renovations and works including; demolition of utility room, construction of dormer…
40, Seapoint Avenue, Blackrock, Co. Dublin
D12B/0019Dún Laoghaire–RathdownLodged 26 Jan 2012Extension
- Granted40 m away
The works form part of the overall DART Upgrade Project and will consist of the removal/demolition of the…
Seapoint Dart Station, Seapoint Avenue, Blackrock, Co. Dublin
D04A/1332Dún Laoghaire–RathdownLodged 13 Jan 2006Infrastructure
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
Permission is sought for the demolition of existing sunroom and new replacement single storey sun room…
14, Sweetmount Park, Dundrum, Dublin 14
D18B/0374Dún Laoghaire–RathdownLodged 22 Aug 2018
- GrantedExtension
Permission is sought for the demolition of existing non original single storey garage, sheds and sunroom,…
149, Ludford Road, Dundrum, Dublin 16
D17A/0403Dún Laoghaire–RathdownLodged 3 May 2017
- GrantedExtension
Permission is sought for — Retention of existing detached garage to side & attached sunroom to side, &
1, Foxrock Mount, Foxrock Park, Kill Lane, Dublin 18
D11B/0195Dún Laoghaire–RathdownLodged 11 Aug 2011
- GrantedExtension
Permission is sought for demolition of the existing garage, single store rear and side extension, partially…
Mount Eden, Ballycorus Road, Kilternan, Co. Dublin, D18HY74
D26B/0250/WEBDún Laoghaire–RathdownLodged 27 Apr 2026
- GrantedExtension
Permission sought for development consisting of: a) demolition of single storey garage to side, single storey…
39, Saint Helen's Road, Booterstown, Co Dublin
D07A/0344Dún Laoghaire–RathdownLodged 8 Jun 2007
- GrantedExtension
Permission is sought for alterations and extensions to existing dwelling house consisting of:- a) demolition…
24, Glenart Avenue, Blackrock, Co Dublin
D07B/0554Dún Laoghaire–RathdownLodged 20 Jun 2007
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