20, Knockfield Manor, Knocklyon, Dublin 16.
First-floor extension over the existing garage of a detached house in Knocklyon.
SD16B/0324 · South Dublin County Council · Lodged 5 October 2016
- Reference
- SD16B/0324
- Authority
- South Dublin County Council
- Register status
- Decided
- Type
- Permission
- Received
- 5 October 2016
- Floor area
- 13.5 m²
Summary
AI-generatedThe application seeks permission for a 13.5 square meter first-floor extension with a pitched roof. The new structure will be built over the existing garage of a two-storey detached dwelling.
- 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
Permission for a 13.5sq. M first floor pitched roof extension over the existing garage of the existing two storey detached dwelling to include ancillary works.
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.
Built — construction complete
A commencement notice records works starting on 21 February 2017.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 38 Knockfield Manor, Knocklyon, Dublin 16 | Oct 2025 | €975,000 | 87 m |
| Apt 5 Prospect Lodge, Knocklyn Road, Dublin 16 | Jun 2025 | €330,000 | 126 m |
| 7 Beverley Park, Knocklyon, Dublin 16 | Sept 2025 | €280,000 | 131 m |
| 23 Beverly Crescent, Templeogue, Dublin 16 | Aug 2025 | €582,500 | 222 m |
| 32 Castlefield Court, Castlefield Manor, Knocklyon Dublin 16 | Jul 2025 | €571,000 | 223 m |
| 1 Beverly Downs, Beverly Court, Knocklyon Dublin 16 | Sept 2025 | €765,000 | 242 m |
| 12 Beverly Crescent, Knocklyon, Dublin 16 | Jan 2025 | €712,500 | 245 m |
| 22 Beverly Downs, Knocklyon, Dublin 16not full market price | Sept 2025 | €260,000 | 251 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 received5 October 2016
- Decision due29 November 2016
- Decision issued24 November 2016
- Grant issued10 January 2017
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
Single storey extension to side and rear
16 Knockfield Manor, Knocklyon Road, Dublin 16
SD02B/0362South DublinLodged 7 Aug 2002Extension
- Granted60 m away
Single-storey rear and side extension to include kitchen, storage and utility rooms, 2 no. roof windows and…
23, Knockfield Manor, Knocklyon Road, Dublin 16, D16 A2K7
SD25B/0265WSouth DublinLodged 10 May 2025Extension
- Refused80 m away
Bungalow to the rear with vehicular access onto Beverly Green
Rear of 11, Beverly Park, Knocklyon, Dublin 16
SD09A/0488South DublinLodged 10 Aug 2010New dwelling
- Withdrawn80 m away
Construct bungalow to rear with vehicular access onto Beverley Green
11, Beverley Park, Knocklyon, Dublin 16.
SD06A/0803South DublinLodged 4 May 2007New dwelling
- Granted80 m away
Bungalow to the rear with vehicular access onto Beverly Green
Rear of 11, Beverly Park, Knocklyon, Dublin 16
SD09A/0488/EPSouth DublinLodged 8 Feb 2016New dwelling
- Refused80 m away
Construction of dormer bungalow to the rear 11 Beverley Park and with vehicular access onto Beverley Green
11, Beverley Park, Knocklyon, Dublin 16.
SD04A/0430South DublinLodged 14 Jun 2004New dwelling
- Granted90 m away
Single storey extension to rear, conversion of garage, two storey extension to side, dry dash finish to…
38 Knockfield Manor, Knocklyon, Dublin 16.
S99B/0704South DublinLodged 20 Jan 2000Extension
- Refused90 m away
Construct an extension
11 Beverly Park, Knocklyon, Dublin 16.
S99B/0380South DublinLodged 6 Sept 1999
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
Permission for the construction of first floor extension of 29.1 sqm over existing single storey garage and…
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D18B/0200Dún Laoghaire–RathdownLodged 3 May 2018
- GrantedExtension
Permission for the construction of a new 23sq.m first floor extension over existing garage with pitched roof…
83, Marley Court, Rathfarnham, Dublin 16
D22A/0345Dún Laoghaire–RathdownLodged 20 May 2022
- GrantedExtension
Permission for development consisting of an extension with pitched roof at first floor over existing garage,…
116, Landscape Park, Churchtown, Dublin 14
D13B/0252Dún Laoghaire–RathdownLodged 18 Jul 2013
- GrantedExtension
Permission for a first floor 13m2 extension above existing garage with a new pitched roof to match existing.…
21 Leopardstown Avenue, Blackrock, Co Dublin
D15B/0362Dún Laoghaire–RathdownLodged 28 Sept 2015
- GrantedExtension
Permission for proposed first floor extension (25.71 sqm) to the side of existing dwelling over existing…
109, Silchester Park, Glenageary, Co. Dublin
D14B/0120Dún Laoghaire–RathdownLodged 3 Apr 2014
- GrantedExtension
Permission for first floor extension (15.7 sqm) over existing single storey garage to side of dwelling and…
37 Ardilea Downs, Mount Merrion, Co Dublin
D16B/0058Dún Laoghaire–RathdownLodged 16 Feb 2016
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