8 Sydney Avenue, Blackrock (a protected structure)
First-floor rear extension to a protected structure in Blackrock.
D20A/0479 · Dun Laoghaire Rathdown County Council · Lodged 10 July 2020
- Reference
- D20A/0479
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 10 July 2020
Summary
AI-generatedThe application seeks permission to construct a first-floor extension at the rear of the property. The building is a protected structure.
- 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 for a first floor extension at the rear.
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 |
|---|---|---|---|
| 3 Avoca Place, Blackrock, Dublin | Dec 2025 | €671,000 | 67 m |
| 10 Green Rd, Blackrock, Dublin | Oct 2025 | €820,000 | 75 m |
| 9 Avoca Place, Blackrock, Dublin | Jul 2025 | €1,250,000 | 86 m |
| 16 Avoca Place, Blackrock, Dublinnot full market price | Sept 2025 | €500,000 | 95 m |
| 23 Convent Rd, Dalkey, Dublin | Jun 2026 | €650,000 | 110 m |
| 9 Anglesea Ave, Blackrock, Dublin | Nov 2025 | €1,510,000 | 120 m |
| 46 Frascati Park, Blackrock, Dublin | Sept 2025 | €1,584,000 | 145 m |
| 4 Anglesea Ave, Blackrock, Dublin | Dec 2025 | €1,360,000 | 151 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 received10 July 2020
- Decision issued2 September 2020
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
Permission for a two storey extension to the rere.A protected structure
8, Sydney Avenue, Blackrock, Co. Dublin
D14A/0283Dún Laoghaire–RathdownLodged 15 May 2014Extension
- GrantedAt this site
Permission for the demolition of a sunroom and the erection of a single storey extension to the rere
8 Sydney Avenue, Blackrock, Co Dublin (A Protected Structure)
D15A/0306Dún Laoghaire–RathdownLodged 7 May 2015Extension
- GrantedAt this site
To demolish part of the two storey return building and the existing one storey rear extension,and to build a…
10, Sydney Avenue, Blackrock, Co. Dublin
D06A/1372Dún Laoghaire–RathdownLodged 20 Dec 2006Extension
- GrantedAt this site
Planning permission for development. The development consist of, demolition of single storey extension to the…
10, Sydney Avenue, Blackrock, Co. Dublin
D16A/0981Dún Laoghaire–RathdownLodged 6 Apr 2017Extension
- GrantedAt this site
Permission is sought for the demolition of existing single storey extension to the rear, partial demolition…
12, Sydney Avenue, Blackrock, Dublin, A94P5Y9
D24A/0099/WEBDún Laoghaire–RathdownLodged 22 Feb 2024Extension
- Granted50 m away
Conservatory extension to side, conversion of existing garage to bedroom accommodation and the alteration of…
1A, Avoca Place, Blackrock, Co. Dublin
D03A/0721Dún Laoghaire–RathdownLodged 24 Jul 2003Extension
- Granted50 m away
For an extension to the existing dwelling house, including demolition of existing single storey kitchen…
16, Sydney Avenue, Blackrock, Co. Dublin
D05B/0353Dún Laoghaire–RathdownLodged 16 May 2005Extension
- Granted60 m away
Demolish existing two storey bathroom extension to rear and lean-to shed to party wall and re-building…
11, Sydney Avenue, Blackrock, Dublin
D07A/1727Dún Laoghaire–RathdownLodged 1 Apr 2008Extension
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 for a first floor extension to rear
13, Hawthorn Manor, Blackrock, Co. Dublin
D18B/0163Dún Laoghaire–RathdownLodged 9 Apr 2018
- GrantedExtension
Permission for the construction of a first floor extension to the rear
12 Mount Eustace Crescent, Tyrrelstown, Dublin 15, D15 X4H3
FW21B/0094FingalLodged 27 May 2021
- RefusedExtension
Permission sought for a 1st floor extension to the rear
26, Findlater Street, Glasthule, Co Dublin
D07B/0305Dún Laoghaire–RathdownLodged 5 Apr 2007
- GrantedExtension
Permission to construct a first floor extension to the rear of the dwelling
No. 28 Marble Park , Riverstown , Glanmire
2442863Cork CityLodged 16 Apr 2024
- RefusedExtension
Permission to construct a first-floor extension to the rear of the dwelling
No.28 Marble Park , Riverstown , Glanmire
2342422Cork CityLodged 6 Nov 2023
- GrantedExtension
Permission for construction of first floor extension to rear of dwelling
49 Kilbrody , Mount Oval Village , Mounthovel Rochestown
2039221Cork CityLodged 31 Mar 2020
Community
Discussion
What local people think about this application.
Community sentiment
No votes yetNobody has voted on this application yet.
Community sentiment — a straw poll of people who visited this page, not a statutory submission. To make a valid observation you must submit it to the planning authority.
Sign in to have your say on this application.
No comments yet. Be the first to say what you think about this application.
Sign in to join the discussion on this application.
Comments are moderated and are the opinions of the people who wrote them. They form no part of the statutory planning process — to make a valid observation you must submit it to the planning authority.