149, Mount Prospect Avenue, Clontarf, Dublin 3
Renovation and change of use of a granny flat into a separate house with a new extension.
WEB1116/19 · Dublin City Council · Lodged 4 March 2019
- Reference
- WEB1116/19
- Authority
- Dublin City Council
- Register status
- Appealed
- Type
- Permission
- Received
- 4 March 2019
Summary
AI-generatedThe project involves converting an existing granny flat into a separate residential dwelling. It includes a new rear garden, a first-floor extension with a mono-pitched roof, and raising the height of the chimney stack and front boundary walls.
- Residential unit
- 1
- Floor area
- 45 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
The change of use and renovation of existing granny flat to residential use, the creation of a new rear 45m2 private garden for new residential dwelling, increasing the height of existing chimney stack to allow for new stepped back first floor extension with mono pitched roof, increasing the height of existing front boundary walls with new front gates, and all associated site works.
Land-use zoning
What this land is zoned for
“To protect, provide and improve residential amenities.”
National zoning type: Existing residential
Objective set by the 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 |
|---|---|---|---|
| 7 Prospect Bay, Mount Prospect Avenue, Dublin 3price excludes VAT | Jan 2025 | €629,956 | 22 m |
| 21 Prospect Bay, Mount Prospect Avenue, Clontarfprice excludes VAT | Nov 2025 | €514,675 | 22 m |
| 69 Park Lawn, Clontarf, Dublin 3 | Jul 2025 | €950,000 | 70 m |
| 181 Mount Prospect Avenue, Clontarf, Dublin 3 | Jan 2025 | €2,150,000 | 142 m |
| 54 Mount Prospect Grove, Clontarf, Dublin 3 | Nov 2025 | €850,000 | 213 m |
| 35 Baymount Park, Clontarf, Dublin 3 | Mar 2026 | €1,800,000 | 214 m |
| 53 Mount Prospect Grove, Clontarf, Dublin 3 | Sept 2025 | €785,000 | 215 m |
| 30 Dollymount Ave, Clontarf, Dublin 3 | Nov 2025 | €1,500,000 | 219 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 received4 March 2019
- Decision due26 April 2019
- Decision issued26 April 2019
- Appeal submitted23 May 2019
- Appeal decided19 August 2019
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Granted30 m away
Planning permission sought for a single storey granny flat consisting of the conversion and extension of…
50, Park Lawn, Clontarf, Dublin 3
4417/19Dublin CityLodged 8 Nov 2019Extension
- Invalid30 m away
Planning permission sought for a single storey granny flat to the side including a small extension and two…
50, Park Lawn, Clontarf, Dublin 3
4188/19Dublin CityLodged 10 Oct 2019Extension
- Granted60 m away
Planning permission is sought by the applicant for development at No. 140 Mount Prospect Avenue, Clontarf,…
140, Mount Prospect Avenue, Dublin 3, D03X942
4876/23Dublin CityLodged 29 Nov 2023Extension
- Granted70 m away
Planning permission is sought for alterations and extensions to existing dwelling. The application includes…
130, Mount Prospect Avenue, Clontarf, Dublin 3
2824/21Dublin CityLodged 25 May 2021Extension
- Granted70 m away
Conversion of Attic to storage, including a dormer window to the rear at roof level
69, Park Lawn, Clontarf, Dublin 3, D03 X978
WEB1175/19Dublin CityLodged 29 Mar 2019Extension
- Invalid70 m away
Conversion of Attic to storage, including a dormer window to the rear at roof level
69, Park View, Clontarf, Dublin 3, D03 X978
WEB1160/19Dublin CityLodged 22 Mar 2019Extension
- Invalid70 m away
Conversion of Attic to storage, including a dormer window to the rear at roof level
69, Park Lawn, Clontarf, Dublin 3, D03 X978
WEB1178/19Dublin CityLodged 1 Apr 2019Extension
- Granted80 m away
Conversion of his attic to storage, including a dormer window to the rear, and a velux roooflight to the…
63, Park Lawn, Clontarf, Dublin 3
WEB2950/25Dublin CityLodged 22 Aug 2025Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- Awaiting decisionExtension
Construct a granny flat extension to side (east facing) elevation of existing dwelling house and to carry out…
Cummery Connell (South), Meelin, Co. Cork,
184744corkLodged 27 Mar 2018
- GrantedExtension
Alterations, extension and partial change of use to form granny flat, consisting of a two storey rear and…
Rose Cottage, New Line, Ballinglanna, Brooklodge, Glanmire, Co. Cork
177258corkLodged 13 Dec 2017
- GrantedExtension
Construct a single storey extension to rear of existing dwelling and minor alterations to elevations and…
Beginish House, Minister's Cross, Carrigrohane, Co. Cork
175906corkLodged 24 Jul 2017
- Awaiting decisionExtension
Refurbishment and modernisation of existing dwelling, construct extension to rear to include kitchen, utility…
Donemark, Bantry, ,
062122corkLodged 13 Oct 2006
- GrantedExtension
Conversion and first floor extension to existing adjoining granny flat providing an additional two bedrooms…
Dove Cottage, Commons Road,Loughlinstown, Dublin 18
D05A/1191Dún Laoghaire–RathdownLodged 15 Sept 2005
- GrantedExtension
Alterations to dwelling, partial change of use & extension to dwelling to form granny flat; extension to rear…
Cuasnog, Glyntown Ballinglanna, Glanmire, Co. Cork
167195corkLodged 19 Dec 2016
Community
Discussion
What local people think about this application.
Community sentiment
No votes yetNobody has voted on this application yet.
Community sentiment — a straw poll of people who visited this page, not a statutory submission. To make a valid observation you must submit it to the planning authority.
Sign in to have your say on this application.
No comments yet. Be the first to say what you think about this application.
Sign in to join the discussion on this application.
Comments are moderated and are the opinions of the people who wrote them. They form no part of the statutory planning process — to make a valid observation you must submit it to the planning authority.