12, Southdene, Monkstown Valley, Monkstown, Blackrock, Dublin, A94R8X5
Attic conversion to a study room with a rear dormer window and rooflights.
D23B/0143 · Dun Laoghaire Rathdown County Council · Lodged 31 March 2023
- Reference
- D23B/0143
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 31 March 2023
Summary
AI-generatedThe application seeks permission to convert the existing attic space into a study room. The works will include a dormer window to the rear, three rooflights to the front, and a sun tunnel in the side hip roof.
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
Ta se ar intinn agamsa, cur isteach ar chead maidir le hathchoiriu ar an ailear lena thiontu ina sheomra staideir le fuinneog dhormata ar chul, tri dhionleas chun tosaigh, agus grian-thollan sa dion cromain taoibh mar aon le gach gne d'oibreacha laithreain a bhaineann leis. Conversion of the attic to a study room with a dormer window to the rear, three rooflights to the front, a sun tunnel to the side hip roof including all associated site works.
Land-use zoning
What this land is zoned for
“A To provide residential development and improve residential amenity while protecting the existing residential amenities”
Objective set by the 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 24 July 2023.
Notified floor area: 15.3 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 16 Southdene, Monkstown Valley, Monkstown | Jun 2026 | €630,000 | 21 m |
| 4 The Beeches, Monkstown Valley, Monkstown | Jul 2025 | €648,000 | 66 m |
| 18 Beauparc Downs, Monkstown Valley, Dublin | May 2025 | €495,000 | 90 m |
| 17 Beauparc Downs, Monkstown Valley, Monkstown | Feb 2026 | €550,000 | 90 m |
| 1beauparc Downs, Monkstown Valley, Monkstown | Dec 2025 | €400,000 | 97 m |
| 11 Arundel, Monkstown Valley, Monkstown | Oct 2025 | €695,000 | 100 m |
| 1 Arundel, Monkstown Valley, Monkstown | Jan 2025 | €1,080,000 | 104 m |
| 4 Drayton Close, Monkstown Rd, Monkstown | Feb 2026 | €612,000 | 135 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 received31 March 2023
- Decision due25 May 2023
- Decision issued22 May 2023
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- InvalidAt this site
Erect a single storey extension to the side and rear of my existing dwelling house and to carry out…
14, Southdene, Monkstown Valley, Monkstown, Dublin, A94K2W5
D25B/0423/WEBDún Laoghaire–RathdownLodged 28 Jul 2025Extension
- GrantedAt this site
Erect a single storey extension to the side and rear of existing dwelling house and to carry out associated…
14, Southdene, Monkstown Valley, Monkstown, Blackrock, Dublin, A94K2W5
D25B/0429/WEBDún Laoghaire–RathdownLodged 29 Jul 2025Extension
- Granted40 m away
Construction of a new 2-storey side extension and a single-storey with part 2-storey extension to the rear of…
19 Southdene, Monkstown Valley, Monkstown, Blackrock, Co. Dublin, A94P6E4
D24B/0054Dún Laoghaire–RathdownLodged 14 Feb 2024Extension
- Exempt — no permission needed40 m away
Proposed single storey garden recreation room And all associated site works
19, Rivers Edge, Southdene, Monkstown Valley, Monkstown, Blackrock, Dublin, A94P6E4
REF2625Dún Laoghaire–RathdownLodged 20 Feb 2025Extension
- Granted40 m away
Permission for the conversion of the attic into study/playroom with a dormer window to the rear, rooflight to…
21, Southdene, Monkstown, Co Dublin
D21B/0158Dún Laoghaire–RathdownLodged 1 Apr 2021Extension
- Granted50 m away
Permission is sought for attic store upgrade with dormer window on rear and rooflight on front
22 Southdene, Monkstown, Co. Dublin
D20B/0294Dún Laoghaire–RathdownLodged 28 Sept 2020Extension
- Granted60 m away
Permission to make a 3.2m long x 1.21m high window by joining together two existing kitchen windows on the…
2, The Beeches, Monkstown Valley, Monkstown, Co. Dublin
D14B/0161Dún Laoghaire–RathdownLodged 6 May 2014Alterations
- Granted80 m away
Addition of a single storey glazed conservatory to the south west conservatory to the south west of…
Carrickbrennan House, Monkstown Valley, Monkstown, Co. Dublin
D08A/0005Dún Laoghaire–RathdownLodged 8 Jan 2008Alterations
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
The development consists of the conversion of the existing attic to a store/study area to include a dormer…
17, Seafield Grove, Clontarf, Dublin 3
WEB1230/22Dublin CityLodged 15 Mar 2022
- InvalidExtension
(1) Conversion of existing attic to non-habitable study / storage space; (2) dormer window to rear; (3)…
51 Hermitage Road, Lucan, Co Dublin, K78 A322
SD26B/0304WSouth DublinLodged 19 Jun 2026
- GrantedExtension
The development will consist of the conversion of the existing attic to a study/store room including: a new…
57, Ashington Gardens, Dublin 7
3311/25Dublin CityLodged 14 Jul 2025
- GrantedExtension
The development will consist of the construction of a dormer window and rooflight in the attic level to the…
2, The Green, Hazelbrook Square, Dublin 14, D14NH04
D25B/0200/WEBDún Laoghaire–RathdownLodged 15 Apr 2025
- GrantedExtension
The proposed development will consist of the conversion of the existing attic space for use as a study and…
35, Hillcrest Way, Lucan, Co. Dublin, K78 V4X5.
SD25B/0390WSouth DublinLodged 11 Jun 2025
- InvalidExtension
Conversion of the existing attic space to a new study/storage room which incorporates the change of existing…
14, Ballyowen Drive, Lucan, Co. Dublin.
SD24B/0097South DublinLodged 12 Mar 2024
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