26 Mulgrave Street, Dun Laogahire, Co. Dublin
Construction of a second-floor and roof-level rear extension to add a bedroom and en-suite.
D21B/0669 · Dun Laoghaire Rathdown County Council · Lodged 9 December 2021
- Reference
- D21B/0669
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 9 December 2021
Summary
AI-generatedPermission is sought for a second-floor and roof-level rear extension above the existing building. The project includes a new bedroom and en-suite, removing a chimney, adding four rooflights, and making minor internal 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 is sought for a second floor and roof level rear extension above the existing building to provide a bedroom and en-suite bathroom, two rooflights to this extension, removal of chimney, two new rooflights to the existing front roof, minor internal adaptions and associated works.
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 |
|---|---|---|---|
| 30 Mulgrave St, Dun Laoghaire, Dublin | Nov 2025 | €1,800,000 | 39 m |
| 21a Mulgrave St, Dun Laoghaire, Dublin | Feb 2026 | €840,000 | 53 m |
| 32 Mulgrave St, Dun Laoghaire, Dublin | Jul 2025 | €880,000 | 61 m |
| 85/86 Patrick Street, Dun Laoghaire, Co. Dublin | Mar 2025 | €417,500 | 70 m |
| 2 Patrick Court, Patrick St, Dun Laoghaire | Apr 2026 | €572,000 | 83 m |
| 3 Patrick Court, Patrick St, Dun Laoghaire | Jun 2026 | €585,000 | 88 m |
| 91 Patrick St, Dun Laoghaire, Dublin | Dec 2025 | €450,000 | 90 m |
| 22 Patrick St, Dun Laoghaire, Dublin | Mar 2025 | €547,000 | 99 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 received9 December 2021
- Decision issued4 February 2022
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- InvalidAt this site
Permission is sought for a second floor and roof level rear extension above the existing building to provide…
26 Mulgrave Street, Dun Laogahire, Co. Dublin
D21B/0496Dún Laoghaire–RathdownLodged 20 Sept 2021Extension
- Not exempt — permission neededAt this site
The development consist of demolish the existing single-storey 10sqm sunlight garden room and associated…
25, Mulgrave Street, Dun Laoghaire, Dublin, A96NY60
REF10723Dún Laoghaire–RathdownLodged 22 Sept 2023Extension
- GrantedAt this site
For change of use to office use at ground floor level and change of use to apartments use at first floor…
24, Mulgrave Street, Dun Laoghaire, Co. Dublin
D05A/0094Dún Laoghaire–RathdownLodged 26 Apr 2005Change of use
- GrantedAt this site
Permission for: A. Change of Use from office space to residential 2 bedroom 80.3 sqm apartment with…
24 Mulgrave Street, Dún Laoghaire, Co Dublin
D16A/0479Dún Laoghaire–RathdownLodged 30 Jun 2016Change of use
- Invalid30 m away
Permission is sought for a) Proposed vehicular entrance and associated 1 number off street parking space. b)…
55, Patrick Street, Dun Laoghaire, Co. Dublin
D16A/0404Dún Laoghaire–RathdownLodged 2 Jun 2016Infrastructure
- Granted30 m away
Conversion of 2-storey and attic semi-detached house (including construction of a new 2-storey side and…
23, Mulgrave Street, Dun Laoghaire, Co. Dublin.
D03A/1084Dún Laoghaire–RathdownLodged 4 Mar 2004Change of use
- Granted30 m away
The development consists of the demolition of existing ground floor conservatory store and shed to rear with…
23, Mulgrave Street, Dun Laoghaire, Co. Dublin.
D05A/1640Dún Laoghaire–RathdownLodged 16 Dec 2005Extension
- Refused30 m away
For demolition of existing detached single storey domestic garage and ancillary stores to rear garden and…
23, Mulgrave Street, Dun Laoghaire, Co. Dublin
D04A/1319Dún Laoghaire–RathdownLodged 15 Nov 2004Apartments
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- InvalidExtension
Permission is sought for a second floor and roof level rear extension above the existing building to provide…
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D21B/0496Dún Laoghaire–RathdownLodged 20 Sept 2021
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SD04B/0460South DublinLodged 8 Nov 2004
- GrantedExtension
Planning permission is sought for construction of a new 2 storey rear extension comprising of ground floor…
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D09B/0193Dún Laoghaire–RathdownLodged 7 May 2009
- GrantedExtension
Planning permission is sought for the demolition of existing single storey extension to rear, construction of…
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