21, The Maples, Monkstown Valley, Monkstown, Co. Dublin
Conversion of attic space above a second-floor apartment to create a duplex apartment.
D17B/0002 · Dun Laoghaire Rathdown County Council · Lodged 29 March 2017
- Reference
- D17B/0002
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 29 March 2017
Summary
AI-generatedPermission is sought to convert the attic space above an existing second-floor apartment to create a duplex apartment. The accommodation will consist of one double bedroom, an ensuite, and associated service areas, alongside roof light replacements and additions.
- Residential unit
- 1
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 is sought for the conversion of the attic space above the existing second floor apartment to create a duplex apartment (similar to the previously granted planning application reg. Ref. D07b/0175). The proposed accommodation to the attic consist of 1 double bedroom, ensuite and associated service areas. Other works include the replacement of 3 roof lights to the south facing roof, the addition of 2 roof lights and the replacement of 1 roof light to the north facing roof, together wi...
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 20 December 2017. A completion certificate was lodged on 21 January 2022.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 2 Carraiglea, Queens Park, Monkstown | Apr 2026 | €858,555 | 42 m |
| 35 The Alders, Monkstown Valley, Monkstown | May 2026 | €382,000 | 88 m |
| 20 Riversdale Court, Queens Park, Monkstown | Aug 2025 | €425,000 | 103 m |
| 12 Queen's Park, Monkstown, Blackrock | Dec 2025 | €2,500,000 | 108 m |
| 13 Riverdale Court, Queens Park, Monkstown | Sept 2025 | €470,000 | 117 m |
| 7 Riversdale Court, Queen's Park, Monkstown | Jan 2025 | €470,000 | 124 m |
| 1beauparc Downs, Monkstown Valley, Monkstown | Dec 2025 | €400,000 | 127 m |
| 27 Belgrave Sq East, Monkstown, Dublin | Mar 2025 | €2,460,000 | 132 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 received29 March 2017
- Decision issued24 April 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
Permission sought for development consisting of conversion of attic above existing 2nd floor apartment to…
21, The Maples, Monkstown Valley, Monkstown, Co Dublin
D07B/0175Dún Laoghaire–RathdownLodged 1 Mar 2007Apartments
- GrantedAt this site
Permission for Retention of existing 2 bedroom single storey apartment (area 98 sqm) with 4 additional roof…
The Maples, Monkstown Valley, Monkstown, Co Dublin
D14A/0095Dún Laoghaire–RathdownLodged 27 Feb 2014Retention
- Part granted, part refusedAt this site
Permission is sought for a development consisting of the demolition of a bin store (area 32sqm) and…
The Maples, Monkstown Valley, Monkstown, Co Dublin
D07A/0553Dún Laoghaire–RathdownLodged 27 Apr 2007Apartments
- Granted30 m away
Retention permission is being sought for 2 small and 3 large roof-light arrangement on the north roof slope
27, The Maples, Monkstown Valley, Monkstown, Co. Dublin
D11B/0108Dún Laoghaire–RathdownLodged 31 Mar 2011Retention
- Granted30 m away
Permission is sought for a change of use of attic to study/ bedroom above second floor apartment with a new 6…
27, The Maples, Monkstown Valley, Monkstown, Co. Dublin.
D07B/0389Dún Laoghaire–RathdownLodged 23 Apr 2007Extension
- Granted50 m away
Planning permission for development consisting of the provision of a new private vehicular access and…
9, Queen's Park, Monkstown, Co. Dublin
D12A/0099Dún Laoghaire–RathdownLodged 22 Mar 2012Infrastructure
- Granted60 m away
Permission for the erection of a single storey extension to the rear of two storey house
3 Saint Grellans Court, Monkstown Road, Monkstown, Co Dublin
D15B/0480Dún Laoghaire–RathdownLodged 31 Dec 2015Extension
- Granted70 m away
Permission for development. Permission has been granted under reg. ref. D17A/0673 for 3 no. new window…
57, Monkstown Road, Monkstown, Co. Dublin
D17A/1027Dún Laoghaire–RathdownLodged 22 Nov 2017Alterations
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedApartments
Permission sought for development consisting of conversion of attic above existing 2nd floor apartment to…
21, The Maples, Monkstown Valley, Monkstown, Co Dublin
D07B/0175Dún Laoghaire–RathdownLodged 1 Mar 2007
- GrantedExtension
Planning permission is sought for: 1.The conversion of the existing attic space into two bedrooms, with one…
40, Redesdale Road, Mount Merrion, Co. Dublin
D10A/0572Dún Laoghaire–RathdownLodged 10 Jan 2011
- GrantedRetention
A. retention of conversion of attic space of first floor duplex apartment to 2 no. bedrooms & shower room and…
20 Anville Court , St. Brigid's Street , Ballinamore Co. Leitrim
2360022LeitrimLodged 6 Jun 2023
- GrantedExtension
Permission is sought for a change of use of attic to study/ bedroom above second floor apartment with a new 6…
27, The Maples, Monkstown Valley, Monkstown, Co. Dublin.
D07B/0389Dún Laoghaire–RathdownLodged 23 Apr 2007
- GrantedAlterations
For alterations to existing planning permission Ref. No. D06A/1067 to include (a) internal alterations to…
5, Beaumont Avenue, Churchtown, Dublin 14
D07A/0127Dún Laoghaire–RathdownLodged 30 Jan 2007
- GrantedExtension
Permission is sought for an attic extension to a first floor apartment unit. The development will consist of…
Apt. 2, 189A Botanic Road, Glasnevin, Dublin 9, D09 C9DY
WEB1927/22Dublin CityLodged 7 Oct 2022
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