Glenside, 63, Mount Merrion Avenue, Blackrock, Co Dublin, A94Y6W3
Demolition of a rear extension to build a new part-single, part-two-storey extension and widen the entrance.
D20A/0922 · Dun Laoghaire Rathdown County Council · Lodged 9 December 2020
- Reference
- D20A/0922
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 9 December 2020
Summary
AI-generatedThe project involves the demolition of an existing single-storey rear extension. It will be replaced with a part-single, part-two-storey extension to the rear and side, alongside a new pitched roof for the garage and widened entrance gates.
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 development consisting of demolition of existing single storey extension to rear and proposed replacement part single storey/ 2 storey extension to rear and side of existing house comprising new kitchen/dining, laundry and music room/plant room on ground floor. With new master bedroom ensuite and dressing room over internal alterations, new pitched roof to garage, site development works include new widened recessed entrance gates off mount merrion avenue, new mild steel railing...
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 26 September 2022.
Notified floor area: 22.5 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| Apt 11, Dawson Court, Cross Ave | Jan 2025 | €480,000 | 148 m |
| Apt 4, Dawson Court, Cross Ave | Mar 2026 | €510,000 | 148 m |
| 10 Dawson Court, Cross Ave, Blackrock | May 2026 | €527,000 | 148 m |
| 17 Southwood Park, Mount Merrion, Blackrock | Mar 2025 | €1,580,000 | 166 m |
| Kali House, Mount Merrion Ave, Blackrock | Sept 2025 | €1,000,000 | 177 m |
| 17 Hyde Park Avenue, Blackrock, Co Dublin | Dec 2025 | €1,600,000 | 181 m |
| 14 The Elms, Mount Merrion Ave, Blackrock | Apr 2025 | €470,000 | 183 m |
| 15 The Elms, Mount Merrion Ave, Blackrock | Mar 2026 | €490,000 | 183 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 December 2020
- Decision issued5 February 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 development consisting of: (1) Alterations to existing garage to include extension to front…
Glenside, 63, Mount Merrion Avenue, Blackrock, Co Dublin, A94Y6W3
D22A/0396Dún Laoghaire–RathdownLodged 10 Jun 2022Extension
- Refused40 m away
Demolition of existing two-storey house and outbuildings and construction of new-detached dwelling house. New…
2, Glenvar Park, Blackrock, Dublin
D07A/1624Dún Laoghaire–RathdownLodged 15 Feb 2008New dwelling
- Granted40 m away
Planning permission is sought for demolition of existing two-storey extension to front, single storey garages…
2, Glenvar Park, Blackrock, Co. Dublin
D08B/0675Dún Laoghaire–RathdownLodged 12 Sept 2008Extension
- Granted40 m away
Widening of existing vehicular entrance, bay windows to front and two storey extensions incorporating living…
Mostyn, 67, Mount Merrion Avenue, Blackrock, Dublin
D07A/0725Dún Laoghaire–RathdownLodged 29 May 2007Extension
- Granted40 m away
Permission for Retention of breakfast room extension at rear ground floor level and a two storey bay window…
Mostyn, 67 Mount Merrion Avenue, Blackrock, Co Dublin
D19B/0189Dún Laoghaire–RathdownLodged 10 Apr 2019Retention
- Granted50 m away
Permission is sought for demolition of existing single storey extension to rear, one no. chimney and garage…
4, Glenvar Park, Blackrock, Co Dublin
D21A/0610Dún Laoghaire–RathdownLodged 30 Jun 2021Extension
- Refused60 m away
Detached one and half storey house and driveway
1 Glenvar Park, Blackrock, Co. Dublin.
D02A/0962Dún Laoghaire–RathdownLodged 23 Sept 2002New dwelling
- Granted70 m away
Permission for the following: (1) demolition of the following non original front porch and extension, sun…
74 Mount Merrion Avenue, Blackrock, Co Dublin
D19A/0875Dún Laoghaire–RathdownLodged 14 Nov 2019Extension
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
The proposed development will consist of: Replacement of the flat roof to the existing two storey side / part…
132, Melmore, Mount Merrion Avenue, Blackrock, Dublin, A94X9X4
D23A/0784/WEBDún Laoghaire–RathdownLodged 12 Dec 2023
- InvalidExtension
Permission for the demolition of the existing shed abutting the eastern side boundary and the construction of…
The Gate Lodge, The Elms, Mount Merrion Avenue, Blackrock, Co Dublin
D16B/0288Dún Laoghaire–RathdownLodged 1 Jul 2016
- InvalidExtension
The proposed development will consist of the demolition of the existing garage (19.6 sq.m) and external…
45, Merrion Road, Dublin 4
WEB1825/20Dublin CityLodged 17 Nov 2020
- GrantedExtension
Demolition of existing garage and construction of 2 storey extension and detached garage at side, single…
56 Ceadermount Road, Mount Merrion, Co. Dublin.
D02A/0441Dún Laoghaire–RathdownLodged 21 May 2002
- GrantedExtension
Alterations and additions to an existing 2-storey detached dwelling at No.9 Greygates, Mount Merrion, Co.…
9, Greygates, Mount Merrion, Co. Dublin, A94N9D5
D23A/0620Dún Laoghaire–RathdownLodged 31 Jan 2024
- GrantedExtension
A)Two storey extension to side, B)Single storey extension to rear C)Attic conversion to habitable room,…
5 Mount Anville Road, Mount Merrion, Co. Dublin.
D02A/0578Dún Laoghaire–RathdownLodged 20 Jun 2002
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.