34, Northumberland Avenue, Dun Laoghaire, Dublin, A96Y7H1
Demolition of a rear extension and boiler room to build a new two-storey rear extension, side passage, and add external wall insulation.
D23B/0521 · Dun Laoghaire Rathdown County Council · Lodged 14 November 2023
- Reference
- D23B/0521
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 14 November 2023
Summary
AI-generatedThe project involves demolishing an existing two-storey rear extension and a side boiler room. A new two-storey rear extension with a flat roof and three rooflights will be constructed, alongside a new side passage. Works also include external wall insulation, front and rear glazing amendments, and internal modifications.
- 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
Demolition of existing two-storey extension to the rear (east) and one storey boiler room to the side (south). Construction of proposed two storey extension to rear (east) with flat roof and 3no. Roof lights. Construction of proposed side passage with flat roof, in place of existing side passage. Amendments to glazing on front main house (west) elevation and rear main house (east) elevation. Application of external wall insulation to existing house. Internal modifications, associated hard landscaping to rear and all ancillary works.
Built & 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 |
|---|---|---|---|
| 34 Northumberland Avenue, Dunlaoughaira, Co Dublin | Dec 2025 | €1,900,000 | 5 m |
| 15 Northumberland Ave, Dun Laoghaire, Dublin | May 2025 | €1,250,000 | 50 m |
| The Coach House, Sydenham Mews, Corrig Avenue | Jan 2026 | €750,000 | 86 m |
| 10 Corrig Ave, Dun Laoghaire, Dublin | Nov 2025 | €1,286,250 | 93 m |
| 32 Mulgrave St, Dun Laoghaire, Dublin | Jul 2025 | €880,000 | 121 m |
| 30 Mulgrave St, Dun Laoghaire, Dublin | Nov 2025 | €1,800,000 | 124 m |
| 8 Northumberland Ave, Dun Laoghaire, Dublin | Feb 2025 | €1,100,000 | 129 m |
| 2 Patrick Court, Patrick St, Dun Laoghaire | Apr 2026 | €572,000 | 153 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 received14 November 2023
- Decision due17 January 2024
- Decision issued15 January 2024
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