19B Sycamore Lawn, Castleknock, Dublin 15, D15DEA4
Demolition of an outbuilding and granny flat to build a new detached two-storey, two-bedroom house.
FW26A/0124E · Fingal County Council · Lodged 25 March 2026
- Reference
- FW26A/0124E
- Authority
- Fingal County Council
- Register status
- Appealed
- Type
- Permission
- Received
- 25 March 2026
Summary
AI-generatedThe project in Castleknock involves the demolition of a rear garden outbuilding and an existing side granny flat. It proposes the construction of a new detached, two-storey, two-bedroom house in their place, alongside modifications to the existing house roof and a new vehicular access point.
- Residential unit
- 1
- 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 a rear garden out building and the existing granny flat to the side of the existing house, with modification to the existing house roof, and replacement of the granny flat with a detached, two-storey, 2-bed house and the formation of a new opening in the front boundary wall, including partial paving of the grass area beside the public footpath to allow vehicular access and all associated site works.
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 |
|---|---|---|---|
| 27 Laverna Dale, Castleknock, Dublin 15 | Apr 2026 | €622,000 | 66 m |
| 23 Sycamore Dr, Castleknock, Dublin 15 | Jun 2025 | €545,000 | 108 m |
| 4 Sycamore Lawns, Castleknock, Dublin 15 | Nov 2025 | €493,000 | 126 m |
| 33 Sycamore Lawn, Carpenterstown, Dublin | Jan 2025 | €465,000 | 126 m |
| 33 Sycamore Dr, Castleknock, Dublin 15 | Jun 2026 | €550,000 | 167 m |
| 36 Sycamore Ave, Carpenterstown, Castleknock Dublin 15 | Jul 2025 | €999,100 | 168 m |
| 45 Sycamore Ave, Carpenterstown Park, Dublin 15 | Dec 2025 | €515,000 | 170 m |
| 80 Laverna Way, Castleknock Dublin 15, Dublin | Jun 2025 | €710,000 | 204 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 received25 March 2026
- Decision due21 May 2026
- Decision issued12 May 2026
- Appeal submitted4 June 2026
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- RefusedAt this site
Permission is sought for the demolition of a rear garden out building and the existing granny flat to the…
19B Sycamore Lawn, Castleknock, Dublin 15, D15DEA4
FW24A/0514EFingalLodged 10 Dec 2024New dwelling
- Granted40 m away
Permission is sought for the construction of a first floor extension with second floor in the roof space to…
20 Sycamore Lawn, Castleknock, Dublin 15.
FW25A/0252EFingalLodged 13 Jun 2025Extension
- Granted50 m away
Permission for retention of minor alterations to previously applied pl
34 Bramley View, Castleknock, Dublin 15
FW18B/0050FingalLodged 27 Apr 2018Retention
- Granted50 m away
Permission for a. Two storey extension to side. b. Single storey exten
34 Bramley View, Castleknock, Dublin 15
FW16B/0129FingalLodged 9 May 2017Extension
- Awaiting decision70 m away
The development will consist of 1.Subdivision of the existing site for the provision of a new two storey…
19, Sycamore Park, Carpenterstown, D15PD0V
FW25A/0481EFingalLodged 11 Nov 2025New dwelling
- Granted80 m away
Planning permission is sought for new attic conversion,raising of gable end to change roof profile with…
15 Sycamore Park, Carpenterstown Castleknock, Dublin 15
FW25A/0280EFingalLodged 3 Jul 2025Extension
- Refused90 m away
Planning Permission for the construction of a two storey and single st
28 Sycamore View, Castleknock, Dublin 15
FW18B/0139FingalLodged 19 Mar 2019Extension
- Granted90 m away
Planning Permission for the construction of a two storey and single st
28 Sycamore View, Castleknock, Dublin 15
FW19B/0070FingalLodged 21 May 2019Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- RefusedNew dwelling
Permission is sought for the demolition of a rear garden out building and the existing granny flat to the…
19B Sycamore Lawn, Castleknock, Dublin 15, D15DEA4
FW24A/0514EFingalLodged 10 Dec 2024
- GrantedExtension
Demolition of the existing single storey extension to the side and rear of the property and construction of a…
1 Knocklyon Green, Templeogue, Dublin 16.
SD16B/0323South DublinLodged 7 Feb 2017
- GrantedNew dwelling
Demolition of existing dwellinghouse, construction of new dwellinghouse which also incorporates granny flat,…
Codrum, Macroom, ,
146116corkLodged 1 Oct 2014
- GrantedExtension
Partial demolition of existing dwelling and alterations including a two storey and single storey extension to…
Ballintannig, Waterfall, Co. Cork,
164614corkLodged 16 Mar 2016
- Part granted, part refusedExtension
For the demolition of part of an existing 2 storey detached dwelling, the construction of a 2 storey…
11, Leopardstown Lawn, Leopardstown, Dublin 18
D05A/1684Dún Laoghaire–RathdownLodged 21 Dec 2005
- GrantedExtension
Demolition of existing outbuilding, construction of new detached building in lieu of same consisting of…
Maulinward, Bantry, Co. Cork,
13566corkLodged 7 Oct 2013
Community
Discussion
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