8 Northumberland Avenue, Dun Laoghaire, Co. Dublin, A96 WV76
Partial demolition of boundary walls and rear extension, followed by rebuilding a modified extension and terrace roof.
D21B/0016 · Dun Laoghaire Rathdown County Council · Lodged 22 January 2021
- Reference
- D21B/0016
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 22 January 2021
Summary
AI-generatedThe project involves the partial demolition of boundary walls to a rear lane and the partial demolition of an existing single-storey extension. It includes constructing a new external wall to reduce the extension's footprint, adding a new roof over the extension and terrace, and creating a glazed roof area.
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 is sought for partial demolition of boundary walls to the existing laneway to the rear, partial demolition of existing single storey extension walls, and removal of roof over extension in full, construction of anew external wall to existing extension (note existing extension floor area reduced in size), together with new roof over existing extension and partially over terrace area and high level glazing, extended landscaped private open space to the rear, glazed roof area above ex...
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 6 July 2021.
Notified floor area: 28 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 8 Northumberland Ave, Dun Laoghaire, Dublin | Feb 2025 | €1,100,000 | 10 m |
| 63 Mulgrave Street, Dun Laoghaire, Co. Dublin | Oct 2025 | €765,000 | 43 m |
| 21a Mulgrave St, Dun Laoghaire, Dublin | Feb 2026 | €840,000 | 86 m |
| 3 Dungar Terrace, Dun Laoghaire, Co. Dublin | Nov 2025 | €950,000 | 86 m |
| 15 Northumberland Ave, Dun Laoghaire, Dublin | May 2025 | €1,250,000 | 98 m |
| 91 Patrick St, Dun Laoghaire, Dublin | Dec 2025 | €450,000 | 111 m |
| The Coach House, Sydenham Mews, Corrig Avenue | Jan 2026 | €750,000 | 122 m |
| 85/86 Patrick Street, Dun Laoghaire, Co. Dublin | Mar 2025 | €417,500 | 123 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 received22 January 2021
- Decision issued11 March 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
Provision of vehicular entrance and two number parking spaces accessed from rear lane and for demolition of…
8, Northumberland Avenue, Dun Laoghaire, Co. Dublin.
D05A/1682Dún Laoghaire–RathdownLodged 21 Dec 2005Alterations
- GrantedAt this site
Planning permission is sought for change of use from commercial office to single family house
8, Northumberland Avenue, Dun Laoghaire, Co. Dublin
D10A/0535Dún Laoghaire–RathdownLodged 27 Sept 2010Change of use
- InvalidAt this site
Permission for development consisting of a new single storey extension (25 sqm) to main hall, extending into…
9, Northumberland Avenue, Dun Laoghaire, Co. Dublin
D13A/0264Dún Laoghaire–RathdownLodged 23 May 2013Extension
- GrantedAt this site
Permission for development consisting of new single storey extension (25 sqm) to main hall extending into…
9, Northumberland Avenue, Dun Laoghaire, Co. Dublin
D13A/0363Dún Laoghaire–RathdownLodged 17 Jul 2013Extension
- Part granted, part refusedAt this site
Retention of permission is sought for — Change of use from office to residential use
5, Northumberland Avenue, Dun Laoghaire, Dublin
D17A/0588Dún Laoghaire–RathdownLodged 29 Sept 2017Retention
- GrantedAt this site
Permission for development consisting of (a) internal material alterations, repairs and other refurbishment…
Dun Laoghaire Methodist Church, Northumberland Avenue, Dun Laoghaire, Co. Dublin
D13A/0137Dún Laoghaire–RathdownLodged 22 Mar 2013Alterations
- Refused30 m away
Permission for partial demolition of existing storage/garage building (existing car parking space maintained)…
Rear of Avondale House, 3 Northumberland Avenue, Dún Laoghaire, Co Dublin A96 X093
D19A/0187Dún Laoghaire–RathdownLodged 19 Mar 2019New dwelling
- Refused30 m away
Permission for partial demolition of existing storage / garage building (existing car parking space…
'Avondale House', 3, Northumberland Avenue, Dun Laoghaire, Co. Dublin, A96 X093
D20A/0247Dún Laoghaire–RathdownLodged 25 Mar 2020New 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.
- GrantedExtension
Permission is sought for the following: (1) Demolition of non-original single storey extension to rear, (2)…
78 Temple Road, Blackrock, Co. Dublin
D22A/0211Dún Laoghaire–RathdownLodged 28 Mar 2022
- GrantedExtension
Permission for the demolition of 40.5 sqm single storey extension to rear and subsequent construction of 70…
8 Brewery Road, Stillorgan, Co Dublin
D16B/0267Dún Laoghaire–RathdownLodged 22 Jun 2016
- GrantedExtension
Permission is sought for partial demolition of existing two storey modern flatroof extension and external…
5, Prince Edward Terrace Upper, Caryfort Avenue, Blackrock, Co Dublin, A94D2F3, Which is a Protected Structure
D21A/0924Dún Laoghaire–RathdownLodged 20 Oct 2021
- GrantedExtension
Permission is sought for the demolition of single storey structure to side (approx. 40sqm), the demolition of…
Villa Vico, Sorrento Road, Dalkey, Co Dublin, A96W880
D22A/0793Dún Laoghaire–RathdownLodged 20 Oct 2022
- GrantedExtension
Permission is sought for: (1) minor demolition works, construction of a new part single, part two storey flat…
10, Saint Thomas Mead, Mount Merrion, Co. Dublin
D15A/0824Dún Laoghaire–RathdownLodged 1 Mar 2016
- GrantedExtension
Partial demolition of a 17sq.m non-original single storey domestic rear & side extension (ca. 1980's) and…
10, St Mary's Avenue, Rathfarnham, Dublin 14
SD19B/0386South DublinLodged 27 Sept 2019
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