45, Carysfort Downs, Blackrock, Co. Dublin
Attic conversion with dormer windows, a new single-storey rear extension, and front alterations.
D25B/0044 · Dun Laoghaire Rathdown County Council · Lodged 30 January 2025
- Reference
- D25B/0044
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 30 January 2025
Summary
AI-generatedThe application proposes altering the roof profile of an existing house to accommodate a new attic room with front and rear dormer windows. It also includes removing an existing sunroom to build a new 33 sqm single-storey rear extension, alongside internal alterations and front window modifications.
- Floor area
- 33 m²
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
We intend to apply for planning permission for extension and alteraton to existing roof profile to allow for a new attic room and with a new dormer window to front and rear, increase in height of existing chimney to side, new velux rooflight to side, replacement of existing lean-to roof at ground floor level to front with new flat roof, modifications to existing windows to front, removal of existing sunroom to rear to provide a new 33m2 single storey extension to rear together with interior alterations to the existing 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 |
|---|---|---|---|
| 43 Carysfort Downs, Blackrock, Dublin | Aug 2025 | €1,400,000 | 29 m |
| 9 Ardagh Court, Blackrock, Dublin | Feb 2026 | €1,270,000 | 136 m |
| 50 Ardagh Park, Blackrock, Dublin | Jun 2025 | €855,000 | 140 m |
| 10 Carysfort Downs, Blackrock, Dublin | Dec 2025 | €995,000 | 152 m |
| 2 Ardagh Grove, Blackrock, Dublin | Oct 2025 | €795,000 | 168 m |
| 31 Carysfort Downs, Blackrock, Co Dublin | Sept 2025 | €1,210,000 | 176 m |
| 54 Beechwood Court, Stillorgan, Dublin 18 | Oct 2025 | €470,000 | 207 m |
| 29 Carysfort Woods, Blackrock | Jan 2010 | €547,500 | 214 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 received30 January 2025
- Decision due26 March 2025
- Decision issued24 March 2025
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
Internal alterations to construct first floor extension to side, and replace single storey front flat roof…
45, Carysford Downs, Blackrock, Co. Dublin.
D05B/0513Dún Laoghaire–RathdownLodged 4 Jul 2005Extension
- GrantedAt this site
The development consists of retention of alterations to the floor area, roof configuration and elevations of…
44, Carysfort Downs, Blackrock, Dublin, A94KX90
D25B/0162/WEBDún Laoghaire–RathdownLodged 29 Mar 2025Retention
- GrantedAt this site
For the demolition of a garage and the construction of a two storey extension to the side and a single storey…
44, Carysfort Downs, Blackrock, Co. Dublin
D04B/0724Dún Laoghaire–RathdownLodged 4 Oct 2004Extension
- Granted30 m away
Permission for a single storey extension to the rear and garage conversion at ground floor, a first floor…
49 Carysfort Downs, Blackrock, Co Dublin
D17B/0149Dún Laoghaire–RathdownLodged 23 Mar 2017Extension
- Granted30 m away
Permission for Retention of the omission of two number roof lights to the rear elevation and the addition of…
49 Carysfort Downs, Blackrock, Co Dublin
D18B/0425Dún Laoghaire–RathdownLodged 1 Oct 2018Retention
- Awaiting decision30 m away
(A) Demolition of existing c.46sqm single-storey rear extension; (B) Construction of a c.82 sqm two-storey…
Woodlawn, 47 Carysfort Downs, Blackrock, Co. Dublin, A94F983
D26B/0402/WEBDún Laoghaire–RathdownLodged 14 Jul 2026Extension
- Granted40 m away
Second storey extension to front and side incorporating a garage conversion, single storey extension at rear,…
20, Carysfort Downs, Blackrock, Co. Dublin
D07B/0974Dún Laoghaire–RathdownLodged 4 Dec 2007Extension
- Granted40 m away
Demolition of single storey pitched roof over garage and chimney at first floor level to front, and removal…
20, Carysfort Downs, Blackrock, Co. Dublin
D05B/0420Dún Laoghaire–RathdownLodged 7 Jun 2005Extension
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
Planning permission is sought for a development that will consist of alterations to existing single storey…
77 Peck’s Lane, Castleknock, Dublin 15, D15 XC4V
FW24A/0412EFingalLodged 10 Oct 2024
- GrantedExtension
To demolish the existing sunroom and kitchen extension, and erect a part single storey and two storey pitched…
16, Glenbourne Avenue, Leopardstown Valley, Dublin 18
D06B/0469Dún Laoghaire–RathdownLodged 26 May 2006
- GrantedExtension
Planning permission is sought for (i) The removal of the existing single-storey lean-to sections to the front…
43, Carrickbrennan Lawn, Monkstown, Dublin, A94X4K3
D25B/0600/WEBDún Laoghaire–RathdownLodged 23 Oct 2025
- GrantedExtension
Permission is sought. The proposed development consist of; (i) demolition of existing single storey extension…
'Kephas', 4 Corrig Road, Dalkey, Co. Dublin
D20A/0545Dún Laoghaire–RathdownLodged 1 Apr 2021
- GrantedExtension
Permission is sought for the following: (i) Conversion of attic to habitable room including a dormer window…
48 The Stiles Road, Clontarf, Dublin 3
2523/21Dublin CityLodged 1 Apr 2021
- RefusedAlterations
Planning permission for (A) alterations to existing dwelling comprising (i) the extension of the existing…
'Dar Nearah', Hillcrest Road, Dublin 18, D18 N8X8
D23B/0032Dún Laoghaire–RathdownLodged 30 Jan 2023
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