21 Mellifont Avenue, Dún Laoghaire, Co Dublin
Change of use of the basement from commercial to a residential granny flat, with a new rear and side extension.
D18A/0987 · Dun Laoghaire Rathdown County Council · Lodged 18 October 2018
- Reference
- D18A/0987
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 18 October 2018
Summary
AI-generatedThe application proposes converting the basement level from commercial to residential use as a granny flat. It includes basement and first-floor alterations, a part single-storey and part two-storey rear/side extension, a first-floor terrace, and a basement ramp.
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 the change of use at basement level from commercial to residential to be used as a granny flat, with associated alterations to basement and first floor and the construction of a part single storey, part two-storey extension to the rear and side with new terrace at first floor level and ramp to basement level.
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.
Built — construction complete
A commencement notice records works starting on 25 October 2019.
Notified floor area: 178.5 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 12 Stoneview Place, Dun Laoghaire, Dublin | Aug 2025 | €720,000 | 43 m |
| 14 Stone View Place, Dun Laoghaire, Dublin | May 2025 | €300,000 | 61 m |
| 10 Edwin Terrace, Melifont Ave, Dun Laoghaire | Feb 2025 | €425,000 | 84 m |
| Parkview, 5 Park Rd, Dun Laoghaire | May 2025 | €2,230,000 | 93 m |
| 1 Edwin Terrace, Mellifont Ave, Dun Laoghaire | Sept 2025 | €601,000 | 98 m |
| 1 Edwin Terrace, Mellifont Ave, Dun Laoghaire | Sept 2025 | €601,000 | 98 m |
| Apt 2, Edwin Terrace, Mellifont Ave | Sept 2025 | €500,000 | 98 m |
| 1 St Floor, 2 Marine Terrace, Dun Laoghaire | Jun 2025 | €2,000,000 | 115 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 received18 October 2018
- Decision issued12 December 2018
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 alterations and extensions, to existing dwelling house including demolition of the existing…
21, Melifont Avenue, Dun Laoghaire, Co Dublin
D08B/0143Dún Laoghaire–RathdownLodged 27 Feb 2008Extension
- GrantedAt this site
Permission for development. Permission for development consisting of the retention of demolition of single…
7, Stoneview Place, Dun Laoghaire, Co. Dublin
D17A/0408Dún Laoghaire–RathdownLodged 4 May 2017Retention
- Granted30 m away
The development will consist of Demolition of existing single storey structures to rear of existing dwelling…
18, Mellifont Avenue, Dun Laoghaire, Dublin, A96W732
D24A/0259/WEBDún Laoghaire–RathdownLodged 19 Apr 2024Extension
- Compliance submission30 m away
Compliance with Condition No. 2 of Reg Ref No. D24A/0259/WEB
18, Mellifont Avenue, Dun Laoghaire, Dublin, A96W732
D24A/0259/WEB/C1Dún Laoghaire–RathdownLodged 5 Dec 2024Other
- Granted30 m away
A two-storey extension (88 sq.m.) to the rear of office/ light industrial / shop specialist building
24, Mellifont Avenue, Dun Laoghaire, Co. Dublin
D04A/1554Dún Laoghaire–RathdownLodged 10 Mar 2005Commercial
- Refused40 m away
Two-storey residential extension (88 sq.m) to the rear
24, Mellifont Avenue, Dun Laoghaire, Co. Dublin
D04B/0576Dún Laoghaire–RathdownLodged 22 Jul 2004Extension
- Granted40 m away
Permission for the Change of Use from commercial to part commercial, part residential
24 Mellifont Avenue, Dun Laoghaire, Co Dublin
D14A/0529Dún Laoghaire–RathdownLodged 14 Aug 2014Change of use
- Granted40 m away
Permission is sought for the change of use from office and light industrial use to art gallery and art…
24, Mellifont Avenue, Dun Laoghaire, Co. Dublin A96 E728 which is located in an Architectural Conservation Area
D20A/0993Dún Laoghaire–RathdownLodged 12 Mar 2021Change of use
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