69 Trees Road Upper, Mount Merrion, Co. Dublin
Single-storey front extension and a first-floor side extension.
D20B/0221 · Dun Laoghaire Rathdown County Council · Lodged 9 March 2021
- Reference
- D20B/0221
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 9 March 2021
Summary
AI-generatedThe development consists of a single-storey front extension to create bay windows for a living room and study, a new porch, and a first-floor side extension to accommodate a double bedroom and ensuite.
- Storeys
- 2
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 sought for proposed front single storey extension comprising of bay windows to living room and study, new porch, first floor side extension comprising of double bedroom and ensuite.
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 12 June 2017.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 71 Trees Road, Mount Merrion, Co Dublin | Aug 2025 | €1,480,000 | 13 m |
| 35 Cedarmount Rd, Mount Merrion, Blackrock | Mar 2026 | €880,000 | 52 m |
| 21 Cedarmount Rd, Mount Merrion, Dublin | Nov 2025 | €910,000 | 72 m |
| 52 Cedarmount Road, Mount Merrion, Co Dublin | Nov 2025 | €1,000,000 | 104 m |
| 49 Cedarmount Rd, Mount Merrion, Blackrock | Aug 2025 | €830,000 | 109 m |
| 64 South Ave, Mount Merrion, Dublin | Mar 2026 | €1,390,000 | 154 m |
| 66 South Ave, Mount Merrion, Dublin | Feb 2025 | €1,255,000 | 163 m |
| 33 Clonmore Rd, Mount Merrion, Dublin | Apr 2026 | €1,425,000 | 168 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 March 2021
- Decision issued1 April 2021
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 retention of 5.4m2 canopy to the rear of No — Retention is also applied for the removal of the…
69, Trees Road Upper, Mount Merrion, Co. Dublin
D12A/0030Dún Laoghaire–RathdownLodged 1 Feb 2012Retention
- GrantedAt this site
Permission is sought for the demolition of an existing extension, the building of a new extension and the…
69, Trees Road Upper, Mount Merrion, Co Dublin
D10B/0440Dún Laoghaire–RathdownLodged 28 Oct 2010Extension
- GrantedAt this site
Permission for a single storey extension under the existing projecting roof to the existing kitchen/dining…
69 Trees Road Upper, Mount Merrion, Co Dublin
D16B/0291Dún Laoghaire–RathdownLodged 5 Jul 2016Extension
- InvalidAt this site
Permission is sought for retention of 5.4m2 canopy to rear. Retention is also applied for the removal of the…
69, Trees Road Upper, Mount Merrion, Co. Dublin
D11A/0563Dún Laoghaire–RathdownLodged 8 Dec 2011Retention
- GrantedAt this site
Alterations/amendments to existing permission Register reference number D03B/0186, alterations include change…
71, Trees Road Upper, Blackrock, Co. Dublin.
D04B/0103Dún Laoghaire–RathdownLodged 13 Feb 2004Alterations
- GrantedAt this site
An attic conversion, a two-storey extension over an existing garage, conversion of garage to study and a new…
71, Trees Road Upper, Blackrock, Co. Dublin.
D03B/0186Dún Laoghaire–RathdownLodged 18 Mar 2003Extension
- GrantedAt this site
Alterations/amendments to existing permission - register reference number D04B/0103. Alterations include…
71, Trees Road Upper, Mount Merrion, Co. Dublin
D05B/0910Dún Laoghaire–RathdownLodged 15 Dec 2005Alterations
- GrantedAt this site
Permission is sought for the extension. The proposed development will include the extension of the existing…
67 Trees Rd Upper, Mount Merrion, Blackrock, Co. Dublin A94 E9W
D20A/0434Dún Laoghaire–RathdownLodged 24 Sept 2020Extension
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 is sought for a single storey extension to front of dwelling incorporating a bay window to study…
11, Cabinteely Park, Cabinteely, Dublin 18
D17B/0293Dún Laoghaire–RathdownLodged 15 Jun 2017
- GrantedExtension
Permission is sought for — 1) single storey extension to front of existing dwelling consisting of two new bay…
12, Marley Lawn, Rathfarnham, Dublin 16
D07B/0614Dún Laoghaire–RathdownLodged 4 Jul 2007
- GrantedExtension
Planning permission sought for proposed front living room single storey extension and front study bayed…
85 Delwood Drive, Castleknock, Dublin 15, D15 0ACT
FW23A/0390FingalLodged 19 Dec 2023
- GrantedExtension
Permission is sought for single storey porch and study extension to front elevation, two storey extension to…
1, Sweetmount Park, Dundrum, Dublin 14
D07B/0001Dún Laoghaire–RathdownLodged 2 Jan 2007
- GrantedExtension
Permission is sought for proposed single storey extension to side (north) and two storey extension to rear…
88, The Rise, Woodpark, Ballinteer, Dublin 16
D11B/0304Dún Laoghaire–RathdownLodged 14 Sept 2011
- GrantedExtension
Permission is sought for a first floor extension to side over existing single storey utility room, porch and…
Raglan, 13a, Hyde Park, Dalkey, Co. Dublin.
D09B/0114Dún Laoghaire–RathdownLodged 24 Mar 2009
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.