18, Mount Alton, Knocklyon, Dublin 16
Ground and first floor extensions to the front, side, and rear of the house, and converting the garage into a study.
SD06B/0015 · South Dublin County Council · Lodged 13 January 2006
- Reference
- SD06B/0015
- Authority
- South Dublin County Council
- Register status
- Decided
- Type
- Permission
- Received
- 13 January 2006
- Floor area
- 63.87 m²
Summary
AI-generatedThe development includes a ground floor extension to the front, side, and rear, and a first floor extension over the existing garage and kitchen. It also involves converting the garage into a study, internal modifications, installing automatic driveway gates, and raising the front boundary wall.
- 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
Extension to the house by 5.9sq. M. To the side and front and 25.4sq. M. To the rear at ground floor and 28.8sq. M. To the side over existing garage and kitchen at first floor; the change of use from garage to a study together with modifications to internal arrangements and elevations; the provision of automatic gates to existing driveway and the increase in height of the front boundary walls to 1200mm high.
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 | 39 m |
| 35 Mount Alton, Knocklyon, Dublin 16 | Feb 2025 | €595,000 | 97 m |
| 5 Idrone Park, Knocklyon Wood, Templeogue Dublin 16 | Jun 2025 | €680,000 | 207 m |
| 28 Beverly Ave, Beverly Court, Knocklyon | Feb 2025 | €475,000 | 253 m |
| 4 Knocklyon Avenue, Templeogue, Dublin 16 | May 2025 | €670,000 | 258 m |
| 2 Knocklyon Ave, Knocklyon Woods, Dublin 16 | Dec 2025 | €881,000 | 262 m |
| 6 Idrone Dr, Knocklyon, Templeogue Dublin 16 | Jul 2025 | €575,000 | 276 m |
| 38 Knockfield Manor, Knocklyon, Dublin 16 | Oct 2025 | €975,000 | 288 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 received13 January 2006
- Decision due8 March 2006
- Decision issued8 March 2006
- Grant issued21 April 2006
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Granted40 m away
The development consists of re-location and enlargement of ground floor window to eastern side elevation of…
2 Mount Alton Court, Knocklyon, Dublin 16, D16 HW83
SD26B/0225WSouth DublinLodged 11 May 2026Retention
- Refused50 m away
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
- Exempt — no permission needed50 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
- Granted60 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
- Refused70 m away
Ground floor entrance porch and skylight above with change of windows to the front; ground floor rear…
38, Mount Alton, Dublin 16
SD18B/0488South DublinLodged 21 Nov 2018Extension
- Part granted, part refused70 m away
Ground floor entrance porch and skylight above with change of windows to the front; ground floor rear…
38, Mount Alton, Knocklyon, Dublin 16, D16 K721
SD19B/0368South DublinLodged 18 Sept 2019Extension
- Granted80 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
- Granted90 m away
Single storey extension to the side and rear including all associated site works. The extension will consist…
32, Mount Alton, Knocklyon, Dublin 16.
SD07B/0019South DublinLodged 23 Mar 2007Extension
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Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
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