21, Woodstown Heights, Knocklyon, Dublin 16, D16 N449
Front and rear extensions, attic conversion, and roof alterations to a house in Knocklyon.
SD22B/0439 · South Dublin County Council · Lodged 26 May 2023
- Reference
- SD22B/0439
- Authority
- South Dublin County Council
- Register status
- Decided
- Type
- Permission
- Received
- 26 May 2023
Summary
AI-generatedThe development includes a single-storey front porch and sitting room extension, a single-storey rear extension, and an attic conversion for storage with a rear dormer. It also features a raised gable and new side windows.
- 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
Single storey front porch and sitting room extension with parapet style roof. Single storey extension to the rear. Attic conversion for storage with dormer to the rear. Raised gable with 2 new side gable windows. 2 new windows to the ground floor side.
Land-use zoning
What this land is zoned for
“To protect and/or improve residential amenity”
National zoning type: Existing residential
Objective set by the South Dublin 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.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 14 Woodstown Heights, Knocklyon, Dublin 16 | Mar 2026 | €630,000 | 48 m |
| 51 Woodstown Heights, Knocklyon, Dublin 16 | Oct 2025 | €640,000 | 68 m |
| 4 Woodstown Heights, Woodstown, Knocklyon Dublin 16 | May 2025 | €631,000 | 69 m |
| 23 Dalriada Sq, Knocklyon, Dublin 16 | Apr 2026 | €420,000 | 91 m |
| 9 Dalriada Court, Knocklyon, Dublin 16 | Jul 2025 | €593,000 | 105 m |
| 4 Dalriada Court, Knocklyon, Dublin 16 | Mar 2025 | €590,000 | 117 m |
| 7 Dalriada Court, Knocklyon, Dublin 16 | Jun 2025 | €575,000 | 125 m |
| 30 Woodstown Heath, Knocklyon, Dublin 16 | Jun 2026 | €675,000 | 129 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 received26 May 2023
- Decision due22 June 2023
- Decision issued22 June 2023
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
Build-up of existing hip in roof to side of roof into 'Dutch' hip at attic level; attic conversion with…
24, Woodstown Heights, Dublin 16
SD17B/0054South DublinLodged 15 Feb 2017Extension
- Refused30 m away
Conversion of an attic to storage; changing the existing hipped roof to a half hipped roof with two Velux…
25, Woodstown Heights, Dublin 16
SD11B/0313South DublinLodged 1 Sept 2011Extension
- Granted30 m away
Conversion of attic space for use as a storage room, with 1 no. Velux roof window to rear and a dormer window…
25, Woodstown Heights, Dublin 16
SD11B/0371South DublinLodged 23 Nov 2011Extension
- Granted30 m away
Conversion of attic space comprising alterations to existing gable wall, window and roof, new gable window,…
16, Woodstown Heights, Dublin 16
SD14B/0179South DublinLodged 25 Aug 2014Extension
- Granted30 m away
Extend the existing ridge tiles and roof tiles to form a 'Dutch' type roof structure, extend original side…
26, Woodstown Heights, Knocklyon, Dublin 16
SD15B/0237South DublinLodged 28 Sept 2015Extension
- Granted40 m away
Extend the existing ridge tiles & tiled roof to form a 'Dutch' type tiled roof & extend the existing…
25, Woodstown Meadows, Dublin 16
SD17B/0222South DublinLodged 20 Jun 2017Extension
- Granted50 m away
Proposed build up of existing hip in roof to side of roof into dutch hip with window in gable wall at attic…
28, Woodstown Heights, Knocklyon, Dublin 16, D16WK06
SD25B/0260South DublinLodged 8 May 2025Extension
- Granted50 m away
Removal of the existing front entrance porch and single storey extension to rear; construction of a new…
21, Woodstown Meadow, Woodstown Village, Knocklyon, Dublin 16, D16 W2X8
SD20B/0377South DublinLodged 7 Oct 2020Extension
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
Side first-floor extension and attic extension. Attic conversion for storage with raised gable to the side 2…
121, Keeper Road, Drimnagh, Dublin 12
WEB1648/21Dublin CityLodged 14 Jun 2021
- InvalidExtension
Single storey porch and living room extension at the front, single storey kitchen extension at the rear,…
35, Bluebell Avenue, Bluebell, Dublin 12
WEB1485/21Dublin CityLodged 4 May 2021
- GrantedExtension
First floor front and side extension with hipped roof over for extended living accommodation; extended ground…
3, Parkland Drive, Ballycullen, Dublin 24
SD19B/0005South DublinLodged 9 Jan 2019
- WithdrawnExtension
Single storey porch extension to the front & side; a two storey extension to the side including a change to…
32, Cypress Park, Templeogue, Dublin 6W.
SD09B/0491South DublinLodged 18 Dec 2009
- GrantedExtension
Attic conversion for storage with Dormer window to the rear. Two velux windows to the front roof area. New…
169, St. Peter's Road, Walkinstown, Dublin 12, D12 H3C6
SD24B/0251WSouth DublinLodged 31 May 2024
- GrantedExtension
A single storey porch and living room extension at the front, single storey kitchen extension at the rear,…
39, Bluebell Avenue, Bluebell, Dublin 12 D12 A068
WEB1821/22Dublin CityLodged 6 Sept 2022
Community
Discussion
What local people think about this application.
Community sentiment
No votes yetNobody has voted on this application yet.
Community sentiment — a straw poll of people who visited this page, not a statutory submission. To make a valid observation you must submit it to the planning authority.
Sign in to have your say on this application.
No comments yet. Be the first to say what you think about this application.
Sign in to join the discussion on this application.
Comments are moderated and are the opinions of the people who wrote them. They form no part of the statutory planning process — to make a valid observation you must submit it to the planning authority.