20 Stillorgan Park Avenue, Stillorgan, Co Dublin
Demolition of a rear conservatory and chimneys to build a new single-storey rear extension.
D17B/0433 · Dun Laoghaire Rathdown County Council · Lodged 20 September 2017
- Reference
- D17B/0433
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 20 September 2017
Summary
AI-generatedThe development involves the demolition of an existing rear conservatory and two chimney stacks. A new flat-roofed, single-storey extension will be built to the rear, along with associated site services.
- 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 demolition of existing conservatory to the rear and two number chimney stacks to the front and rear respectively. Erection of a new flat roof single storey extension to the rear, together will all on site utilities and services.
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 9 May 2018.
Notified floor area: 27 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| Villa Flanders, 8 Stillorgan Grove, Stillorgan | Nov 2025 | €1,250,000 | 65 m |
| 19 Stillorgan Park Ave, Blackrock, Dublin | Apr 2026 | €1,400,000 | 66 m |
| 1 Churchview, Glenalbyn Rd, Stillorgan | Nov 2025 | €461,528 | 108 m |
| 10 Churchview, Glenalbyn Rd, Stillorgan | Nov 2025 | €462,000 | 108 m |
| Apt 10 Woodview Court, Glenalbyn Rd, Stillorgan | Mar 2026 | €440,000 | 148 m |
| 2 Woodview Court, Glenalbyn Rd, Stillorgan | Feb 2025 | €417,500 | 151 m |
| 6 Woodview Court, Glenalbyn Rd, Stillorgan | Aug 2025 | €455,000 | 151 m |
| Arkglen, 2 Glenalbyn Rd, Stillorgan | Dec 2025 | €520,000 | 158 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 received20 September 2017
- Decision issued10 November 2017
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Granted30 m away
Permission for a single storey extension (8 sqm) with a roof light to the side and rear elevation of an…
Ardvarna, 18 Stillorgan Park Avenue, Blackrock, Co Dublin
D15A/0163Dún Laoghaire–RathdownLodged 11 Mar 2015Extension
- Granted40 m away
For first floor extnesion to rear and minor alterations/renovations and all associated site works
21, Stillorgan Park Avenue, Stillorgan, Co. Dublin
D05B/0746Dún Laoghaire–RathdownLodged 17 Oct 2005Extension
- Granted40 m away
Demolition of an existing first floor bathroom and the demolition of a single storey steam room at ground…
12, STILLORGAN GROVE, STILLORGAN, CO. DUBLIN
D04B/0712Dún Laoghaire–RathdownLodged 24 Sept 2004Extension
- Granted50 m away
For the construction of a detached dormer dwelling with vehicular access from Stillorgan Park Avenue, new…
Ardvarna, 18, Stillorgan Park Avenue, Blackrock, Co. Dublin
D05A/0116Dún Laoghaire–RathdownLodged 3 Feb 2005New dwelling
- Granted50 m away
Permission for the removal of the existing dormer roof, insertion of new pitched roof at higher level to…
16 Stillorgan Park Avenue, Stillorgan, Co Dublin
D19A/0233Dún Laoghaire–RathdownLodged 15 Jul 2019Change of use
- Granted50 m away
Permission is sought for the construction of a 'Lawn Pod' garden room, of circa 22.75 m2 floor area, in the…
18A Stillorgan Park Avenue, Blackrock, Co. Dublin
D22B/0372Dún Laoghaire–RathdownLodged 11 Aug 2022Extension
- Granted60 m away
Permission for the development. The proposed development consists of (1) Demolition of small single story…
10 Stillorgan Grove, Stillorgan, Co. Dublin
D23B/0340Dún Laoghaire–RathdownLodged 17 Jul 2023Extension
- Invalid60 m away
Planning Permission is sought for (1) Alterations to existing dwelling including extension to first floor…
10, Stillorgan Grove, Stillorgan, Co. Dublin, A94YD81
D25B/0596Dún Laoghaire–RathdownLodged 22 Oct 2025Extension
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 demolition of the chimney and the single storey conservatory to the rear.…
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D18B/0350Dún Laoghaire–RathdownLodged 7 Aug 2018
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2370Galway CityLodged 23 Mar 2023
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Permission for the demolition of as single storey conservatory to the rear of the existing dwelling, for the…
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