13 Saint Thomas Road, Mount Merrion, Blackrock, Co Dublin
First floor extension, dormer roof works, and external insulation to a house in Mount Merrion.
D19B/0080 · Dun Laoghaire Rathdown County Council · Lodged 15 February 2019
- Reference
- D19B/0080
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 15 February 2019
Summary
AI-generatedThe development includes a first floor extension, an extended dormer roof and gable to the side, and new dormer windows. It also features a new ground floor bay window, external insulation, and revised windows and doors.
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 first floor extension and extended dormer roof and gable to north east side of existing house, incorporating new dormer window to front and rear slopes. New bay window to ground floor family room to rear, external insulation to entire house and new cladding to existing front gable elevation. Revised fenestration throughout and associated site 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 |
|---|---|---|---|
| Apartments 1-11, Fitzwilliam Court, The Rise Mount Merrion | Dec 2025 | €4,400,000 | 109 m |
| 14 St Thomas Road, Mount Merrion, Blackrock | Jul 2025 | €1,750,000 | 113 m |
| 12 Foster Ave, Mt Merrion, Dublin | Oct 2025 | €1,410,000 | 117 m |
| Apartment 4 Greygates, Roebuck Ave, Mount Merrionprice excludes VAT | Jan 2026 | €190,000 | 155 m |
| 5 Greygates, Stillorgan Road, Mount Merrion | Jun 2025 | €1,690,000 | 212 m |
| 32 St Thomas Rd, Mount Merrion, Dublin | Mar 2025 | €1,900,000 | 239 m |
| Apt 100, Belfield Park, Stillorgan Road | Jan 2026 | €465,000 | 239 m |
| 47 Belfield Park, Stillorgan Rd, Dublin | Dec 2025 | €380,000 | 282 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 received15 February 2019
- Decision issued11 April 2019
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- RefusedAt this site
Detached dormer bungalow and driveway at the side
1 St Thomas Mead, Mount Merrion, Co Dublin.
D03A/1120Dún Laoghaire–RathdownLodged 19 Nov 2003New dwelling
- Compliance submission50 m away
Compliance with Condition No.2 of Reg Ref No.D24A/0972/WEB
12, Saint Thomas Mead, Mount Merrion, Blackrock, Co.Dublin
D24A/0971/WEB/C1Dún Laoghaire–RathdownLodged 1 Jul 2025Other
- Compliance submission50 m away
Compliance with Condition No.2 of Reg Ref No.D24A/0971/WEB
12, Saint Thomas Mead, Mount Merrion, Blackrock, Co.Dublin
D24A/0971/WEB/C2Dún Laoghaire–RathdownLodged 14 Oct 2025Other
- Granted50 m away
Planning permission is sought for modifications to existing house, raising ridge level by 1.1m in height and…
12, Saint Thomas Mead, Mount Merrion, Blackrock, Co.Dublin
D24A/0971/WEBDún Laoghaire–RathdownLodged 6 Dec 2024Extension
- Invalid50 m away
Planning permission is sought for modifications to existing house, raising ridge level by 1.1m in height and…
12, Saint Thomas Mead, Mount Merrion, Blackrock, Dublin, A94DX38
D24B/0423/WEBDún Laoghaire–RathdownLodged 5 Oct 2024Alterations
- Granted50 m away
Permission for construction of a single storey extension to rear and single storey extension to side of…
4 Saint Thomas Meade, Mount Merrion, Co Dublin
D15B/0224Dún Laoghaire–RathdownLodged 24 Aug 2015Extension
- Granted60 m away
Ground floor extension to sides and rear, and for first floor extensions at sides. [LOCATION] 11 St. Thomas…
11 St. Thomas Mead, Mount Merrion, Co. Dublin.
D02B/0103Dún Laoghaire–RathdownLodged 5 Mar 2002Extension
- Granted60 m away
The demolition of the existing conservatory to the rear (16m2) and alterations to the interior ground and…
4, The Fosters, Mount Merrion, Co. Dublin
D06B/0756Dún Laoghaire–RathdownLodged 21 Aug 2006Extension
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 a single storey extension to the front and rear of the existing house, 1st floor dormer and…
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D15A/0317Dún Laoghaire–RathdownLodged 13 May 2015
- GrantedExtension
Permission for a single storey extension to the rear of the property. First floor bedroom side extension to…
51 Waltham Terrace, Blackrock, Co Dublin
D15B/0085Dún Laoghaire–RathdownLodged 23 Mar 2015
- GrantedExtension
Permission for single storey extension to side of existing house. New first floor dormer type extension over…
82 Grange Wood, Rathfarnham, Dublin 16
D16B/0542Dún Laoghaire–RathdownLodged 21 Dec 2016
- GrantedExtension
Permission for the construction of a first floor dormer extension over an existing ground floor extension, to…
5, Haddington Lawns, Glenageary, Co. Dublin
D14B/0386Dún Laoghaire–RathdownLodged 12 Nov 2014
- GrantedExtension
Permission for alterations and extension to dwelling, consisting of a first-floor side extension, addition of…
Duinin , 52 Clover Lawn , Skehard Road
2341712Cork CityLodged 19 Jan 2023
- GrantedExtension
Permission for new attic dormer style extension to rear of dwelling, new single storey extension to front of…
2, Meadowvale, Johnstown, Blackrock, Co. Dublin
D20B/0055Dún Laoghaire–RathdownLodged 24 Jul 2020
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