2 Mount Alton Court, Knocklyon, Dublin 16, D16 HW83
Retention of a relocated and enlarged ground floor window on the side elevation.
SD26B/0225W · South Dublin County Council · Lodged 11 May 2026
- Reference
- SD26B/0225W
- Authority
- South Dublin County Council
- Register status
- Decided
- Type
- Retention
- Received
- 11 May 2026
Summary
AI-generatedThe application seeks retention permission for the relocation and enlargement of an existing ground floor window on the eastern side elevation of the dwelling.
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
The development consists of re-location and enlargement of ground floor window to eastern side elevation of dwelling-house.
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 |
|---|---|---|---|
| 2 Mount Alton Court, Knocklyon, Dublin 16 | Jul 2025 | €1,225,000 | 5 m |
| 35 Mount Alton, Knocklyon, Dublin 16 | Feb 2025 | €595,000 | 132 m |
| 28 Beverly Ave, Beverly Court, Knocklyon | Feb 2025 | €475,000 | 215 m |
| 5 Idrone Park, Knocklyon Wood, Templeogue Dublin 16 | Jun 2025 | €680,000 | 231 m |
| 22 Beverly Downs, Knocklyon, Dublin 16not full market price | Sept 2025 | €260,000 | 261 m |
| 10 Beverly Drive, Knocklyon, Dublin 16 | Dec 2025 | €800,000 | 267 m |
| 5 Garthy Wood, Knocklyon Rd, Templeogue Dublin 16 | Jul 2025 | €382,000 | 277 m |
| Apt 9 Garthy Wood, Knocklyon Road, Dublin 16 | Mar 2026 | €403,000 | 277 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 received11 May 2026
- Decision due8 July 2026
- Decision issued6 July 2026
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- RefusedAt this site
Detached two storey house which will require the partial demolition of an existing garage with the remainder…
3, Mount Alton Court, Knocklyon Road, Dublin 16.
SD06A/0960South DublinLodged 10 Nov 2006New dwelling
- Granted40 m away
Extension to the house by 5.9sq.m. to the side and front and 25.4sq.m. to the rear at ground floor and…
18, Mount Alton, Knocklyon, Dublin 16
SD06B/0015South DublinLodged 13 Jan 2006Extension
- Granted40 m away
Amendment of the position of the entrance door in front porch of existing house; internal changes to the…
10, Mount Alton, Dublin 16
SD20B/0137South DublinLodged 28 Apr 2020Extension
- Granted90 m away
Demolition of existing chimney and sunroom to rear of existing dwelling; construction of single-storey…
43, Mount Alton, Dublin 16
SD20B/0303South DublinLodged 24 Aug 2020Extension
- Invalid90 m away
Single storey extension to front/side and garage to the side
5 Knocklyon Grove, Knocklyon, Dublin 16
SD02B/0439South DublinLodged 25 Sept 2002Extension
- Granted90 m away
Domestic, two-storey extension to front/side and garage to side
5, Knocklyon Grove, Knocklyon, Dublin 16
SD02B/0491South DublinLodged 30 Oct 2002Extension
- Exempt — no permission needed90 m away
Proposed whole - house Energy refurbishment, and modest single-storey extension (32sqm) to rear of existing…
26, Mount Alton, Knocklyon, Dublin 16
ED17/0007South DublinLodged 23 Jan 2017Extension
- Granted90 m away
New single storey extension to side of dwelling extending into side garden, new roof lights to north and…
2 Mount Alton Knocklyon Road, Dublin 16
SD15B/0154South DublinLodged 11 May 2015Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedAlterations
The development consists of combining two dwellings into one house and new window openings to ground floor…
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- InvalidAlterations
The development will consist of: combining two dwellings into one and new window opening to ground floor…
1 & 2 O'Connell Ville, O'Connell Avenue, Dublin 7
4803/22Dublin CityLodged 8 Sept 2022
- GrantedExtension
Installation of ground floor window to eastern elevation and and one and half storey extension to…
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Alteration, additional first floor windows to east and west elevations and extension to rear of dwellinghouse
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Community
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