3, Cedarwood Avenue, Glasnevin, Dublin 11
Extend the roof over an existing side extension to convert the attic into a home office with a rear dormer window.
WEB1027/26 · Dublin City Council · Lodged 6 January 2026
- Reference
- WEB1027/26
- Authority
- Dublin City Council
- Register status
- Decided
- Type
- Permission
- Received
- 6 January 2026
Summary
AI-generatedThe application seeks permission to extend the existing hipped roof over the current first-floor side extension. This will facilitate the conversion of the attic space into a home office/study, featuring a new dormer window on the rear roof plane.
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
To extend the existing hipped roof over the existing first floor extension to side in order to convert the existing attic space to home office/study with a new dormer window to the rear elevation roof plane.
Land-use zoning
What this land is zoned for
“To protect, provide and improve residential amenities.”
National zoning type: Existing residential
Objective set by the 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.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 3 Cedarwood Ave, Glasnevin North, Dublin 11 | Oct 2025 | €630,000 | 2 m |
| 5 Cedarwood Ave, Glasnevin, Dublin 11 | Dec 2025 | €620,000 | 10 m |
| 76 Oakwood Ave, Ballymun, Dublin 11 | Dec 2025 | €585,000 | 54 m |
| 6 Cedarwood Rd, Glasnevin, Dublin 11 | Oct 2025 | €535,000 | 60 m |
| 16 Cedarwood Avenue, Ballymun, Dublin 11 | Feb 2026 | €460,000 | 103 m |
| 124 Sycamore Rd, Fnglas, Dublin 11 | Apr 2025 | €335,000 | 111 m |
| 114 Sycamore Rd, Glasnevin North, Dublin 11 | Mar 2026 | €540,000 | 125 m |
| 10 Cedarwood Park, Finglas East, Dublin 11 | Feb 2025 | €491,762 | 147 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 received6 January 2026
- Decision due4 March 2026
- Decision issued26 February 2026
- Permission expiry22 May 2031
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- GrantedAt this site
The demolition of the existing single storey extension to the rear and construction of a new single storey…
5, Cedarwood Avenue, Glasnevin, Dublin 11
WEB2033/26Dublin CityLodged 27 Apr 2026Extension
- Granted60 m away
For proposed attic conversion to storage room incorporating removal of existing hipped roof and building up…
72 Oakwood Avenue, Dublin 11 , D11ED89
4288/24Dublin CityLodged 17 Sept 2024Extension
- Refused70 m away
RETENTION: The development consists of retention of (i) covered outdoor seating area located in the car park…
The Willows, 74, Willow Park Crescent, Finglas East, Dublin 11, D11 TP64
4940/22Dublin CityLodged 28 Sept 2022Retention
- Part granted, part refused70 m away
RETENTION: The development consisted of a vehicular entrance gate to the rear car park, furthermore and…
The Willows Public House, 74, Willow Park Crescent, Glasnevin, Dublin 11, D11 TP64
WEB1454/22Dublin CityLodged 13 May 2022Retention
- Granted90 m away
Permission for a) dormer window within roof space to front (south) of single storey semi-detached dwelling…
12, Cedarwood Avenue, Finglas East , Dublin 11
2353/21Dublin CityLodged 8 Mar 2021Extension
- Granted100 m away
Planning Permission for alterations and extension of the existing Medical Centre at ground level, to include…
72, Willow Park Crescent, Glasnevin, Dublin 11
2396/20Dublin CityLodged 3 Mar 2020Commercial
- Granted100 m away
Construction of a single-storey extension to the rear of the existing building, behind the G/F retail unit,…
124 Sycamore Road, Finglas, Dublin 11
WEB1277/26Dublin CityLodged 16 Dec 2025New dwelling
- Refused100 m away
RETENTION: Permission is sought for retention of a change of use of the ground floor consisting of increased…
70, Willow Park Crescent, Glasnevin, Dublin 11
3268/18Dublin CityLodged 15 Jun 2018Retention
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
To convert the existing attic space to home office/study with the construction of a dormer window in the rear…
93, Phibsborough Road, Phibsborough, Dublin 7
WEB1183/26Dublin CityLodged 14 Jan 2026
- GrantedExtension
The construction of a dormer window to the rear and conversion of the existing attic space to home…
16 Grove Park Drive, Glasnevin, Dublin 11, D11 V992
WEB2730/25Dublin CityLodged 24 Jul 2025
- GrantedExtension
The alterations to existing roof profile to convert from hipped roof to gable end with one window in the new…
243, Sundrive Road, Crumlin, Dublin 12
WEB1231/23Dublin CityLodged 16 Mar 2023
- GrantedExtension
Single storey dormer roof extension to the rear slope of the existing dwelling at attic space level for…
5, Ferncourt Green, Ballycullen, Dublin 24
SD18B/0385South DublinLodged 19 Sept 2018
- GrantedExtension
The construction of a first floor extension over the existing single storey extension to the rear, conversion…
8, Forth Road, East Wall, Dublin 3
WEB1077/22Dublin CityLodged 3 Feb 2022
- GrantedExtension
A single storey pitched roof extension to rear and side of existing house and conversion of existing attic…
37, Ferncourt Green, Firhouse, Dublin 24
SD07B/0694South DublinLodged 13 Aug 2007
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