40 Rowanbyrn, Blackrock, Co Dublin
Retention and completion of height amendments to a previously approved extension.
D17B/0455 · Dun Laoghaire Rathdown County Council · Lodged 3 October 2017
- Reference
- D17B/0455
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission for Retention
- Received
- 3 October 2017
Summary
AI-generatedThis application seeks retention and completion of amendments to a previously approved extension. The changes include increasing the height of the single-storey extension to 3050mm and the first-floor extension to 5770mm, along with window alterations.
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 retention and completion of amendments to previously approved application ref. No. D16b/0543, to include
- The completed heights of the single storey extension to the fore, side and rear revised from 2680mm to 3050mm above ground floor level
- The completed heights of the first floor extension constructed to the side and rear revised from 5610mm to 5770mm above ground floor level, with alteration to the arrangement of approved rear window
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.
Built — construction complete
A commencement notice records works starting on 12 April 2017.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 50 Rowanbyrn, Blackrock, Dublin | Jul 2025 | €825,000 | 68 m |
| 23 Rowanbyrn, Blackrock, Dublin | Mar 2026 | €772,000 | 78 m |
| 117 Rowanbyrn, Blackrock, Co Dublinnot full market price | Sept 2025 | €255,109 | 113 m |
| 19 Brookville Park, Blackrock, Co Dublin | Jul 2025 | €886,918 | 141 m |
| 59 Mount Albany, Blackrock, Dublin | Mar 2026 | €906,000 | 158 m |
| 61 Mount Albany, Blackrock, Dublin | Dec 2025 | €1,100,000 | 163 m |
| 48 Marian Park, Blackrock, County Dublin | Feb 2026 | €710,000 | 193 m |
| 29 Marian Park, Blackrock, Dublin | Jun 2025 | €560,000 | 196 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 received3 October 2017
- Decision issued24 November 2017
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 is sought for demolition of existing garage, the construction of a two storey extension to the…
40, Rowanbyrn, Blackrock, Co. Dublin
D16B/0543Dún Laoghaire–RathdownLodged 21 Dec 2016Extension
- Granted30 m away
The demolition of the existing garage and construction of a two storey extension to the side and rear to…
33, Rowanbyrn, Blackrock, Co. Dublin, A94HP62
D24A/0895/WEBDún Laoghaire–RathdownLodged 8 Nov 2024Extension
- Granted30 m away
Permission sought for replacement of flat roof of existing single storey playroom to the side, with a pitched…
37, Rowanbyrn, Blackrock, Co. Dublin
D16B/0110Dún Laoghaire–RathdownLodged 24 Mar 2016Extension
- Granted40 m away
Alterations and extensions to a semi-detached two storey dwelling including conversion of garage to living…
29, Rowanbyrn, Blackrock, Co. Dublin.
D06B/0876Dún Laoghaire–RathdownLodged 27 Sept 2006Extension
- Granted40 m away
Permission to retain a residential garage conversion and single storey extension to front of garage with a…
29 Rowanbyrn, Blackrock, Co. Dublin.
D19B/0365Dún Laoghaire–RathdownLodged 1 Aug 2019Retention
- Granted60 m away
Retention permission sought for demolition of existing car-port and store to rear and erection of new…
46, Rowanbyrn, Blackrock, Co Dublin
D07B/0136Dún Laoghaire–RathdownLodged 23 Feb 2007Retention
- Granted60 m away
New tiled roof above existing flat roof to front, ground floor extension to rear and first floor extension to…
51, Rowanbyrn, Blackrock, Co. Dublin.
D04B/0770Dún Laoghaire–RathdownLodged 22 Oct 2004Extension
- Granted60 m away
Single storey extensions to side and rear and for relocation of ESB Transformer
59, Roanbyrne, Blackrock, Co Dublin
D03A/0440Dún Laoghaire–RathdownLodged 8 May 2003Extension
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