21 Castle Street, Dalkey, Co. Dublin
Replacement of a pitched roof with a flat-roofed second-floor extension to provide additional office space.
D05A/1400 · Dun Laoghaire Rathdown County Council · Lodged 28 October 2005
- Reference
- D05A/1400
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 28 October 2005
Summary
AI-generatedThe project involves replacing the pitched roof of an existing rear attic store at 21 Castle Street, Dalkey. This will be replaced by a flat-roofed extension at second-floor level to provide 43 sq.m. of additional office space.
- Storeys
- 3
- Floor area
- 43 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
Replacement of pitched roof of existing rear attic store by a flat roofed extension at second floor level to provide 43 sq. M. Of additional office space.
Land-use zoning
What this land is zoned for
“NC To protect, provide for and-or improve mixed-use neighbourhood centre facilities.”
National zoning type: District, neighbourhood centre
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 |
|---|---|---|---|
| 4 The Mews, St Patricks Rd, Dalkey | Mar 2026 | €710,000 | 53 m |
| 1 Derrynane Terrace, Dalkey, Dublin | Sept 2025 | €1,295,000 | 79 m |
| 7 Whites Villas, Dalkey, Dublin | Nov 2025 | €675,000 | 118 m |
| 16 Railway Rd, Dalkey, Dublin | Jan 2025 | €1,585,000 | 133 m |
| 5 Carysfort Court, Carysfort Rd, Dalkey | Jan 2026 | €550,000 | 144 m |
| 16 Carysfort Villas, Carysfort Rd, Dalkey | May 2026 | €452,000 | 149 m |
| 25 Whites Villas, Dalkey, Dublin | Dec 2025 | €550,000 | 152 m |
| 18 Carysfort Villas, Carysfort Rd, Dalkey | Feb 2025 | €480,000 | 154 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 received28 October 2005
- Decision issued5 December 2005
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 the following development. Change of use from commercial to residential use, as two apartments…
21, Castle Street, Dalkey, Co Dublin, A96F9D3
D21A/0079Dún Laoghaire–RathdownLodged 7 May 2021Change of use
- GrantedAt this site
Permission is sought for change of use from office to residential (original) use at first floor (92sq.m) and…
21, Castle Street, Dalkey, Co. Dublin
D10A/0080Dún Laoghaire–RathdownLodged 15 Feb 2010Change of use
- GrantedAt this site
For the replacement of pitched roof of existing rear attic store by a flat roofed extension at second floor…
21, Castle Street, Dalkey, Co. Dublin
D05A/1590Dún Laoghaire–RathdownLodged 9 Dec 2005Commercial
- GrantedAt this site
For the change of use to 3 self contained offices from 2 No. first floor duplex apartments to the rear and 1…
20, Castle Street, Dalkey, Co. Dublin
D05A/1585Dún Laoghaire–RathdownLodged 5 Apr 2006Change of use
- GrantedAt this site
Demolition of 2 No. existing rear apartments and partial demolition of 1 No. existing first floor apartment…
20, Castle Street, Dalkey, Co. Dublin
D04A/0222Dún Laoghaire–RathdownLodged 28 Jun 2004Demolition
- Part granted, part refusedAt this site
2 No. retractable canvas canopies and outdoor seating area with canvas windbreakers to front of existing…
22, Castle Street, Dalkey, Co. Dublin.
D08B/0835Dún Laoghaire–RathdownLodged 17 Dec 2008Commercial
- InvalidAt this site
For retention permission for 2 storey extension (8 sq.m.) containing toilets and store to side (at rear) of…
Tiger Becs Restaurant,22, Castle Street, Dalkey, Co. Dublin
D06A/0307Dún Laoghaire–RathdownLodged 24 Feb 2006Retention
- GrantedAt this site
Retention permission for 2 storey extension (8 sq.m) containing toilets and store to side (at rear) of Tiger…
Tiger Becs Restaurant, 22, Castle Street, Dalkey, Co. Dublin
D06A/0448Dún Laoghaire–RathdownLodged 3 Apr 2006Retention
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedCommercial
For the replacement of pitched roof of existing rear attic store by a flat roofed extension at second floor…
21, Castle Street, Dalkey, Co. Dublin
D05A/1590Dún Laoghaire–RathdownLodged 9 Dec 2005
- GrantedCommercial
Two storey 38sq.m office extension with flat roof; changes to north and east elevations at ground and first…
Catherinestown House, Hazelhatch Road, Newcastle, Co. Dublin
SD18A/0412South DublinLodged 16 Nov 2018
- GrantedExtension
Conversion of existing attic space to office/store comprising of modification of existing roof structure, new…
14 The Green Riverbank , Drogheda , Co. Louth
2560552LouthLodged 4 Sept 2025
- GrantedExtension
Conversion of existing attic space to non-habitable office/storage area, alterations to existing roof type…
20, Heatherview Road, Aylesbury, Tallaght, Dublin 24
SD20B/0252South DublinLodged 17 Jul 2020
- GrantedExtension
Extension to existing offices at rear with demolition of 2 storey returns of 39 sq.m. and extending an…
10/12, Booterstown Avenue, Booterstown, Co. Dublin
D03A/0858Dún Laoghaire–RathdownLodged 8 Sept 2003
- GrantedExtension
A new part 2 storey, part single storey extension to Rear of dwelling, Conversion of attic space to office…
110, Dingle Road, Cabra West, Dublin 7, D07 F5D0
WEB1009/19Dublin CityLodged 15 Jan 2019
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