31 Mount Symon Lawn, Clonsilla, Dublin 15, D15 A6W4
Ground and first-floor rear extensions and a garden home office in Clonsilla.
FW25A/0564E · Fingal County Council · Lodged 23 December 2025
- Reference
- FW25A/0564E
- Authority
- Fingal County Council
- Register status
- Decided
- Type
- Permission
- Received
- 23 December 2025
Summary
AI-generatedThe development consists of a rear extension to the ground-floor kitchen, living, and dining area, alongside an extension to the first-floor rear bedrooms. It also includes minor rear elevation modifications and the construction of a domestic home office in the rear garden.
- 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
The proposed development will consist of the following: (i) a rear extension to the existing kitchen/living/dining area at ground floor level and an extension to the existing rear bedrooms at first floor level; (ii) minor modifications to the rear elevation; (iii) construction of a domestic home office in the rear garden; all with associated site works, private open space and drainage. Additional information received 22/05/26
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 |
|---|---|---|---|
| 55 Castlefield Hall, Clonsilla, Dublin15 | Jan 2025 | €630,000 | 114 m |
| 75 Castlefield Hall, Clonsilla, Dublin 15 | Feb 2026 | €560,000 | 119 m |
| 76 Castlefield Hall, Clonsilla, Dublin 15 | Feb 2026 | €560,000 | 124 m |
| 79 Castlefield Hall, Clonsilla, Dublin 15 | Dec 2025 | €507,000 | 141 m |
| 80 Castlefield Hall, Clonsilla, Dublin 15 | Jun 2025 | €512,000 | 147 m |
| 82 Castlefield Hall, Clonsilla, Dublin 15 | Feb 2025 | €559,000 | 159 m |
| 84 Castlefield Hall, Clonsilla, Dublin 15 | Oct 2025 | €575,000 | 169 m |
| 13 Mount Symon Park, Clonsilla, D I5 | Oct 2025 | €519,000 | 172 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 received23 December 2025
- Decision due18 June 2026
- Decision issued11 June 2026
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
Revisions to previously permitted development Reg. Ref. FW14A/0042 and
House No.s 57-74, Site south of Ongar Road and east of Clonsilla Link
FW21A/0241FingalLodged 8 Dec 2021Alterations
- Awaiting decision100 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
- Granted100 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
- Granted110 m away
Permission for demolition of existing sunroom and shed at rear. To con
20 Mount Symon Avenue, Clonsilla, Dublin 15, D15 HOC3
FW21B/0092FingalLodged 20 Jul 2021Extension
- Invalid120 m away
The development consists of a new hip roof with build up of gable wall
21 Mount Symon Park, Clonsilla, Dublin 15
FW19B/0105FingalLodged 5 Sept 2019Extension
- Granted120 m away
The development consists of a new hip roof with build up of gable wall
21 Mount Symon Park, Clonsilla, Dublin 15
FW19B/0137FingalLodged 12 Nov 2019Alterations
- Granted120 m away
Planning permission is sought for an attic conversion for storage, including a raised side gable, a rear…
20 Mount Symon Park, Clonsilla, Dublin 15, D15 V0H4
FW25A/0097EFingalLodged 13 Mar 2025Extension
- Granted130 m away
The development consists of a new hip roof with built up gable wall, w
19 Mount Symon Park, Clonsilla, Dublin 15, D15 WFW4.
FW22B/0102FingalLodged 3 Oct 2022Extension
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Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
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Community
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