33, Knocklyon Drive, Rathfarnham, Dublin 16
Ground floor rear extension, attic conversion, and front facade alterations to a house in Rathfarnham.
SD21B/0522 · South Dublin County Council · Lodged 8 October 2021
- Reference
- SD21B/0522
- Authority
- South Dublin County Council
- Register status
- Decided
- Type
- Permission
- Received
- 8 October 2021
- Floor area
- 53 m²
Summary
AI-generatedThe project includes a ground floor rear extension with a flat roof, resizing the front garage entrance, and a combination window on the front facade. It also features first-floor internal alterations, a rear dormer window, and an attic conversion to a bedroom.
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
Ground floor rear extension with flat roof and 4 roof lights over; resizing of garage entrance to front and 1 roof light over garage; combination window at front facade from ground floor to first floor roof; first floor internal alterations, resizing of rear first floor window; dormer roof window; 2 roof lights on rear slope of roof at attic level and conversion of attic to bedroom.
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 |
|---|---|---|---|
| 30 Ballyroan Park, Templeogue, Dublin 16 | Dec 2025 | €675,000 | 56 m |
| 8 Knocklyon Dr, Templeogue, Dublin 16 | Sept 2025 | €755,000 | 82 m |
| 11 Ballyroan Park, Templeogue, Dublin 16 | Sept 2025 | €710,000 | 101 m |
| Castlegrace Ballyroan Park, Rathfarnham, Dublin 16 | Jan 2025 | €975,000 | 145 m |
| 54 Ballyroan Road, Rathfarnham, Dublin 16 | Feb 2026 | €894,000 | 170 m |
| No 2 The Lodge, Hersil Wood, Knocklyon | Jan 2025 | €940,000 | 173 m |
| 80 Landsdowne Park, Knocklyon Rd, Templeogue Dublin 16 | Feb 2025 | €720,000 | 217 m |
| 95 Ballyroan Rd, Templeogue, Dublin 16 | Sept 2025 | €675,000 | 219 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 received8 October 2021
- Decision due2 December 2021
- Decision issued2 December 2021
- Grant issued21 January 2022
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
Construction of single storey extension to rear; two storey extension to the side; porch to front; dormer…
35, Knocklyon Drive, Dublin 16
SD21B/0508South DublinLodged 29 Sept 2021Extension
- GrantedAt this site
Construction of a new bathroom over existing store at side
37, Knocklyon Drive, Rathfarnham, Dublin 16
SD07B/0465South DublinLodged 30 May 2007Extension
- Granted40 m away
Retention of 2no. roof windows to front elevation; permission for extension to and conversion of garage and…
25, Knocklyon Drive, Templeogue, Dublin 16
SD08B/0126South DublinLodged 29 Feb 2008Extension
- Granted50 m away
Single storey bedroom to rear with tiled roof over; internal alterations to existing ground floor room to…
23, Knocklyon Drive, Dublin 16
SD10B/0165South DublinLodged 26 Apr 2010Extension
- Withdrawn50 m away
Demolition of existing concrete shed, conversion of existing garage to family room, construction of new first…
21, Knocklyon Drive, Rathfarnham, Dublin 16.
SD05B/0675South DublinLodged 12 Dec 2005Extension
- Invalid50 m away
Conversion of existing garage to family room, construction of new first floor extension over existing garage…
21, Knocklyon Drive, Rathfarnham, Dublin 16.
SD06B/0016South DublinLodged 13 Jan 2006Extension
- Granted50 m away
Conversion of existing garage to family room, construction of new first floor extension over existing garage…
21, Knocklyon Drive, Rathfarnham, Dublin 16.
SD06B/0035South DublinLodged 25 Jan 2006Extension
- Refused60 m away
Construction of a single storey extension to the rear of the existing dwelling and all associated internal…
1, Ballyroan Court, Templeogue, Dublin 16
SD19B/0220South DublinLodged 31 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.
- GrantedExtension
New ground floor rear extension including two rooflights, provision of first floor attic conversion including…
Coolmaine , Sidmonton Road , Bray Co. Wicklow
211525WicklowLodged 20 Dec 2021
- GrantedExtension
Permission sought for new single storey extension to rear, new first floor bedroom over garage with bay…
5, Richmond Avenue, Monkstown, Co. Dublin
D10B/0319Dún Laoghaire–RathdownLodged 15 Jul 2010
- GrantedExtension
Single storey ground floor extension to the rear; conversion of garage to habitable room, construction of a…
21, Wainsfort Park, Terenure, Dublin 6W.
SD07B/0954South DublinLodged 23 Nov 2007
- RefusedExtension
Two storey extension at front/side incorporating a garage conversion, front porch, demolish single storey…
6, Willowbank Drive, Dublin 14
SD07B/0859South DublinLodged 16 Oct 2007
- GrantedRetention
Part single part two storey rear attached extension; conversion of existing attic for habitable use;…
16, Finnscourt, Finnstown Cloisters, Lucan, Co. Dublin
SD21B/0405South DublinLodged 21 Jul 2021
- GrantedExtension
Single storey extension to southeast side, two storey extension to front southwest facing elevation with…
14, Salzburg, Ardilea, Dublin 14
D04B/0262Dún Laoghaire–RathdownLodged 7 Apr 2004
Community
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