42 South Avenue, Mount Merrion, Co Dublin
Retention of modifications made to single-storey rear extensions.
D15B/0090 · Dun Laoghaire Rathdown County Council · Lodged 25 March 2015
- Reference
- D15B/0090
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission for Retention
- Received
- 25 March 2015
Summary
AI-generatedThe application seeks planning permission for the retention of modifications made to single-storey extensions at the rear of the property, which were previously granted planning permission under reference D04B/0421.
- Storey
- 1
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 retention of modifications to single storey extensions at rear, previously granted planning permission register reference number d04b/0421.
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 |
|---|---|---|---|
| 32 South Ave, Mount Merrion, Dublin | Jan 2026 | €1,725,000 | 60 m |
| 33 Clonmore Rd, Mount Merrion, Dublin | Apr 2026 | €1,425,000 | 75 m |
| 28 South Ave, Mount Merrion, Dublin | Sept 2025 | €1,400,000 | 86 m |
| 62 Thornhill Oaks, Blackrock, Co. Dublinprice excludes VAT | Mar 2026 | €859,031 | 105 m |
| 24 South Ave, Mount Merrion, Dublin | Dec 2025 | €1,580,000 | 105 m |
| Thornhill, Cherry Garth, Mount Merrion | Aug 2025 | €1,750,000 | 112 m |
| 63 Thornhill Oaks, Blackrock, Co. Dublin | May 2026 | €870,000 | 118 m |
| 71 Trees Road, Mount Merrion, Co Dublin | Aug 2025 | €1,480,000 | 151 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 received25 March 2015
- Decision issued14 May 2015
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
Demolition of the existing two-storey extension to side and single storey extensions to rear and for erection…
42, South Avenue, Mount Merrion, Co. Dublin
D04B/0421Dún Laoghaire–RathdownLodged 28 May 2004Extension
- GrantedAt this site
Permission is being sought for alterations and additions to an existing 2-storey (with dormer) semi-detached…
44, South Avenue, Mount Merrion, Dublin,
D21B/0691Dún Laoghaire–RathdownLodged 17 Dec 2021Extension
- Part granted, part refusedAt this site
Permission is sought for; a) A proposed first floor extension to front, above existing garage conversion; b)…
40 South Avenue, Mount Merrion, Blackrock, Co. Dublin, A94X5N0
D26B/0064/WEBDún Laoghaire–RathdownLodged 3 Feb 2026Extension
- Awaiting decisionAt this site
Full planning permission for the demolition of the existing single-story side garage & removal of chimney to…
46, South Avenue, Mount Merrion, Co. Dublin, A94W9D8
D26A/0159/WEBDún Laoghaire–RathdownLodged 2 Mar 2026Extension
- Granted30 m away
The development will consist of — Demolition of existing garage and kitchen chimney. Construction of single…
44, South Avenue, Mount Merrion, Co. Dublin
D06A/1488Dún Laoghaire–RathdownLodged 13 Oct 2006Extension
- Refused30 m away
Permission for — Construction of 1 no. two storey five bedroom, infill dwelling with single storey element to…
88 Trees Road Upper, Mount Merrion, Blackrock, Co Dublin
D18A/0284Dún Laoghaire–RathdownLodged 29 Mar 2018New dwelling
- Compliance submission30 m away
Compliance with Condition No.7 of Reg Ref D21A/0538 (N&N)
39 Clonmore Road, Mount Merrion, Co. Dublin
D21A/0538/C1Dún Laoghaire–RathdownLodged 13 Mar 2026Other
- Granted40 m away
Permission for development. The development will consist of a demolition of the exsiting single storey garage…
39 Clonmore Road, Mount Merrion, Co. Dublin
D21A/0538Dún Laoghaire–RathdownLodged 25 Nov 2021New dwelling
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedRetention
Retention of single storey extension to the rear and retention of alterations to front and side. Previously…
9, Primrose Lane, Lucan, Co. Dublin.
SD05B/0147South DublinLodged 7 Mar 2005
- GrantedRetention
Permission for Retention of existing single storey extension to the rear, including amendments to previously…
94 Acorn Road, Dundrum, Dublin 16
D18B/0134Dún Laoghaire–RathdownLodged 21 Mar 2018
- GrantedRetention
Permission for Retention for ground and first floor rear extension (modified from previously approved…
22, Domville Grove, Killiney, Co. Dublin
D13B/0371Dún Laoghaire–RathdownLodged 21 Nov 2013
- Awaiting decisionExtension
Retention of dwelling (change of layout and design from that permitted under 04/424) and planning permission…
Scart, Kildorrery, Co. Cork,
204066corkLodged 21 Jan 2020
- GrantedRetention
Retention of alterations to previously approved 2 storey extension to side (D00B/0377) and single storey…
Lios Na Mara, Saval Park Road, Dalkey, Co. Dublin
D05B/0006Dún Laoghaire–RathdownLodged 6 Jan 2005
- GrantedRetention
Retention permission of alterations to approved plans for extension D05B/0781; principally minor increases in…
91, O'Rourke Park, Sallynoggin, Co. Dublin
D07B/0005Dún Laoghaire–RathdownLodged 21 Aug 2007
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