51, Castlebyrne Park, Blackrock, Co. Dublin
Attic conversion and extension with roof modifications and a new rooflight.
D11B/0107 · Dun Laoghaire Rathdown County Council · Lodged 31 March 2011
- Reference
- D11B/0107
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 31 March 2011
Summary
AI-generatedThe project consists of converting and extending the attic, which includes raising the walls and roof to the rear of the house. It also involves modifying the existing chimney and installing a Velux rooflight on the front roof.
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) conversion and extension of attic to include raising of walls and roof to rear of house, b) modification of existing chimney and c) installation of a velux roof light to front of house.
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 |
|---|---|---|---|
| 93 Castlebyrne Park, Newtownpark Ave, Blackrock | Jun 2026 | €597,000 | 65 m |
| 7 Proby Place, Proby Square, Carysfort Avenue | Sept 2025 | €1,640,000 | 163 m |
| 12 Proby Place, Proby Square, Carysfort Ave | Jun 2025 | €1,700,000 | 163 m |
| 14 Proby Place, Proby Square, Blackrock | May 2026 | €1,495,000 | 165 m |
| 70 Castlebyrne Park, Blackrock, Dublin | Mar 2025 | €528,000 | 175 m |
| 1 Proby Place, Proby Square, Carysfort Avenue | May 2025 | €1,850,000 | 178 m |
| 15 Castlebyrne Park, Newtown Park Ave, Blackrock | Feb 2026 | €667,500 | 181 m |
| 10 Ralph Mews, Newtownpark Ave, Blackrock | May 2025 | €425,050 | 192 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 received31 March 2011
- Decision issued25 May 2011
- Appeal submitted20 June 2011
- Appeal decided24 October 2011
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
Construction of a two storey extension to rear of existing dwelling
51 Castlebyrne Park, Blackrock, Co, Dublin.
D04B/0475Dún Laoghaire–RathdownLodged 20 Sept 2004Extension
- GrantedAt this site
Permission for retention of development is sought for the widening of the front driveway entrance by 1 metre,…
48, Castlebyrne Park, Blackrock, Co Dublin, A94WK60
D21A/0424Dún Laoghaire–RathdownLodged 12 May 2021Retention
- Granted40 m away
Demolition of chimney stack and the construction of a dormer structure/window to rear roof slope. The…
46, Castlebyrne Park, Blackrock, Dublin, A94X635
D23B/0125Dún Laoghaire–RathdownLodged 24 Mar 2023Alterations
- Granted40 m away
Permission for a single storey rear extension comprising a kitchen, dining & living area and a single storey…
35 Oakley Park, Blackrock, Co. Dublin
D17A/0458Dún Laoghaire–RathdownLodged 22 May 2017Extension
- Granted40 m away
Alterations & extension to single storey semi-detached bungalow for new porch and canopy and 2 No. dormer…
35, OAKLEY PARK, BLACKROCK, CO. DUBLIN
D04A/1084Dún Laoghaire–RathdownLodged 22 Sept 2004Extension
- Granted50 m away
The development will consist of a new frameless glass rooflight to the front extension roof, two new…
91, Castlebyrne Park, Blackrock, Co. Dublin
D22A/0854Dún Laoghaire–RathdownLodged 8 Nov 2022Extension
- Granted50 m away
Double extension to rear of dwelling incorporating single storey extension. Inclusion of 1 no. window to…
91, Castlebyrne Park, Blackrock, Co. Dublin
D07B/0876Dún Laoghaire–RathdownLodged 19 Oct 2007Extension
- Granted50 m away
Permission is sought for the construction of a dormer attic structure as a study to end of terrace property…
44 Castlebyrne Park, Blackrock, Co. Dublin, A94 X430
D19B/0338Dún Laoghaire–RathdownLodged 18 Jul 2019Extension
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 Conversion of existing attic to habitable space, with velux rooflights to front and rear, and…
164 Ashfield Grove , North Road , Drogheda
16888LouthLodged 12 Dec 2016
- GrantedExtension
Permission for conversion of existing attic space comprising of modification of existing roof structure,…
74 The Rise, Ballinteer, Dublin 16
D19B/0253Dún Laoghaire–RathdownLodged 21 May 2019
- GrantedExtension
Permission for attic conversion works, to include dormer roof extension and velux roof light to the rear and…
120, Larkfield Gardens, Dublin 6W, D6W DA22
5489/22Dublin CityLodged 20 Dec 2022
- GrantedExtension
Permission for conversion of attic space with new dormer roof extension to the rear and two new velux roof…
7 Streamville Court, Killiney Hill Road, Killiney, Co Dublin
D18B/0119Dún Laoghaire–RathdownLodged 15 Mar 2018
- GrantedExtension
Permission is sought for — An attic conversion
12, Foxrock Wood, Foxrock, Dublin 18
D16B/0511Dún Laoghaire–RathdownLodged 14 Dec 2016
- GrantedExtension
Permission is sought for conversion of existing attic space comprising of modification of existing roof…
6, The Green, Woodpark, Ballinteer, Dublin 16
D21B/0121Dún Laoghaire–RathdownLodged 16 Mar 2021
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