21, Knockcullen Park, Knocklyon, Dublin 16
Retention of alterations and an increased floor area for a previously approved development in Knocklyon.
SD18B/0464 · South Dublin County Council · Lodged 9 November 2018
- Reference
- SD18B/0464
- Authority
- South Dublin County Council
- Register status
- Decided
- Type
- Retention
- Received
- 9 November 2018
- Floor area
- 147 m²
Summary
AI-generatedRetention is sought for modifications made during construction to a permitted development. This includes an increase in floor area from 115 to 147 square metres, a height increase of 275mm, internal reconfiguration, and changes to the windows on all elevations.
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
Retention of alterations and modifications made as constructed to the permitted development as approved by reg. Ref. Sd15a/0290; increase in floor area from 115sq. M to 147sq. M to facilitate a reconfigured internal layout with a resultant increase in height of 275mm & changes to the fenestration on all elevations including the addition of 2 windows on the south facing side elevation & 1 window on the north facing side elevation.
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 |
|---|---|---|---|
| No 2 The Lodge, Hersil Wood, Knocklyon | Jan 2025 | €940,000 | 60 m |
| 57 Knockcullen Drive, Knocklyon, Rathfarnham | Dec 2025 | €820,000 | 140 m |
| 60 Knockcullen Dr, Knocklyon, Dublin 16 | Jul 2025 | €740,000 | 141 m |
| 66 Knockcullen Dr, Knocklyon, Dublin 16 | Oct 2025 | €850,000 | 158 m |
| 30 Ballyroan Park, Templeogue, Dublin 16 | Dec 2025 | €675,000 | 178 m |
| 80 Landsdowne Park, Knocklyon Rd, Templeogue Dublin 16 | Feb 2025 | €720,000 | 214 m |
| 14 Ashton Ave, Knocklyon, Dublin 16 | Feb 2025 | €655,000 | 224 m |
| 54 Ashton Ave, Knocklyon, Dublin 16 | Oct 2025 | €850,000 | 236 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 received9 November 2018
- Decision due12 January 2019
- Decision issued14 January 2019
- Grant issued25 February 2019
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
Demolition of existing single storey garage and construction of a new detached dwelling house of two storey…
22, Knockcullen Park, Knocklyon, Dublin 16.
SD15A/0290South DublinLodged 14 Dec 2015New dwelling
- InvalidAt this site
Demolition of existing single storey garage and construction of a new detached dwelling house of two storey…
21, Knockcullen Park, Knocklyon, Dublin 16
SD15A/0272South DublinLodged 11 Sept 2015New dwelling
- GrantedAt this site
Alterations and extension to existing two storey detached dwelling house comprising additional floor space at…
22, Knockcullen Park, Knocklyon, Dublin 16.
SD05B/0119South DublinLodged 25 Feb 2005Extension
- GrantedAt this site
The construction of a single storey extension (10.2sq.m) to the front (east) elevation of the existing…
16, Hersil Wood, Knocklyon Road, Knocklyon, Dublin 16
SD17B/0038South DublinLodged 5 May 2017Extension
- GrantedAt this site
Retention and proper completion of entrance widening to 4.9 metres and all associated works
23, Knockcullen Park, Dublin 16
SD19B/0443South DublinLodged 14 Nov 2019Retention
- GrantedAt this site
Omission of 14 previously approved 2.5 storey houses and their replacement with 11 houses comprising of 10…
Units 1, 2, 7 & 8 Landy Industrial Estate and detached house, 'Hersil' adjoining Knocklyon Service Station, Knocklyon Road, Dublin 16.
SD13A/0240South DublinLodged 4 Dec 2013Housing estate
- Granted40 m away
Alterations to the western portion of the approved site plan (prev. Refs SD07A/0977, PL 06S.2290906 and…
Knocklyon Service Station, Knocklyon, Dublin 16
SD09A/0303South DublinLodged 31 Jul 2009Housing estate
- Granted40 m away
Alterations to the western portion of the approved site plan (prev. Refs SD07A/0977, PL 06S.2290906 and…
Knocklyon Service Station, Knocklyon, Dublin 16
SD09A/0303/EPSouth DublinLodged 21 Mar 2014Housing estate
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedRetention
Retention/completion of alterations to previously permitted development Plan Ref. No. SD02A/0459 and…
Calmount Business Park, Block F, Calmount Avenue, Calmount Road, Ballymount, Dublin 24.
SD03A/0824South DublinLodged 3 Nov 2003
- GrantedRetention
Retention of elevational alterations, additional storage area on the ground Floor, alterations to site layout…
Woodbine Cottage, Fennell's Bay Road, Ballinluska, Crosshaven
186435corkLodged 13 Sept 2018
- GrantedRetention
Development consisting of the retention of alterations to previously approved plans for renovation and…
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19497SligoLodged 11 Dec 2019
- GrantedRetention
Permission for Retention of modifications to previously approved permission reference number D15A/0008, as…
12 Ulverton Road, Dalkey, Co Dublin
D16A/0718Dún Laoghaire–RathdownLodged 3 Oct 2016
- Awaiting decisionRetention
Permission to retain alterations carried out during and subsequent to the construction of permitted dwelling…
'Belvedere House' , Coolflugh, Tower, Co. Cork
164426corkLodged 24 Feb 2016
- GrantedRetention
Retention permission and planning permission is sought for development for alterations to previously approved…
The White House, Proby Square, Blackrock, Co. Dublin
D22A/0498Dún Laoghaire–RathdownLodged 8 Jul 2022
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