20 Mount Symon Avenue, Clonsilla, Dublin 15, D15 HOC3
Demolition of an existing sunroom and shed to construct a new extension.
FW21B/0092 · Fingal County Council · Lodged 20 July 2021
- Reference
- FW21B/0092
- Authority
- Fingal County Council
- Register status
- Decided
- Type
- Permission
- Received
- 20 July 2021
Summary
AI-generatedThe applicant is seeking permission to demolish an existing sunroom and shed at the rear of the property. This will facilitate the construction of a new extension.
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 sunroom and shed at rear. To con
Land-use zoning
What this land is zoned for
“Provide for residential development and protect and improve residential amenity”
National zoning type: Existing residential
Objective set by the The Fingal Development Plan 2023 – 2029 (2023–2029). 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.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 46 Portersgate Heights, Porterstown, Clonsilla Dublin 15 | Aug 2025 | €535,000 | 107 m |
| 1 Castlefield Hall, Clonsilla, Dublin15not full market price | Feb 2026 | €135,000 | 145 m |
| 13 Mount Symon Park, Clonsilla, D I5 | Oct 2025 | €519,000 | 150 m |
| 35 Portersgate Heights, Clonsilla, Dublin 15 | Jul 2025 | €444,000 | 156 m |
| 75 Castlefield Hall, Clonsilla, Dublin 15 | Feb 2026 | €560,000 | 166 m |
| 10 Mount Symon Park, Clonsilla, Dublin 15 | Aug 2025 | €535,000 | 167 m |
| 6 Castlefield Hall, Clonsilla, Dublin 15 | Oct 2025 | €550,000 | 167 m |
| 76 Castlefield Hall, Clonsilla, Dublin 15 | Feb 2026 | €560,000 | 171 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 July 2021
- Further information requested12 July 2021
- Further information received20 July 2021
- Decision due16 August 2021
- Decision issued11 August 2021
- Grant issued16 September 2021
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Granted70 m away
Attic conversion for storage and dormer window to rear and porch to fr
20 Portersgate Heights, Clonsilla, Dublin 15
FW20B/0094FingalLodged 24 Jul 2020Extension
- Invalid80 m away
Permission for extension of existing attic space to the rear wall of
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FW21B/0165FingalLodged 2 Nov 2021Extension
- Granted80 m away
Extension of existing attic space to the rear wall of the dwelling and
32 Portersgate Heights, Clonsilla, Dublin 15, D15EEF
FW21B/0186FingalLodged 23 Dec 2021Extension
- Granted90 m away
Permission for change of use and conversion of existing attic storage
1 Mount Symon Avenue, Clonsilla, Dublin 15, D15 N9V9
FW21B/0093FingalLodged 27 May 2021Extension
- Granted110 m away
Planning permission is sought for a development on lands at Castlefield Hall, Clonsilla Link Road, Clonsilla,…
Lands at Castlefield Hall, Clonsilla Link Road, Clonsilla, Dublin 15
FW24A/0506EFingalLodged 29 Nov 2024Commercial
- Awaiting decision110 m away
The proposed development will consist of: Construction of a two storey detached childcare facility with…
Castlefield Hall, Clonsilla Link Road, Clonsilla, Dublin 15
FW26A/0075EFingalLodged 2 Mar 2026Commercial
- Granted110 m away
Two storey extension to the side, s single storey extension to rear an
42 Portersgate Heights, Clonsilla, Dublin 15
F07B/0162/E1FingalLodged 13 Jun 2012Extension
- Granted110 m away
The proposed development will consist of the following: (i) A rear extension to the existing…
31 Mount Symon Lawn, Clonsilla, Dublin 15, D15 A6W4
FW25A/0564EFingalLodged 23 Dec 2025Extension
Related developments
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