Site comprising part of the Trianon residential property & no. 9 Knocksinna Crescent, off Granville Road, Blackrock, Co Dublin
Demolition of a house and construction of 12 new homes in Blackrock.
D15A/0431 · Dun Laoghaire Rathdown County Council · Lodged 27 October 2015
- Reference
- D15A/0431
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 27 October 2015
Summary
AI-generatedPermission is sought to demolish an existing house and outbuildings of approximately 326.5 sqm. The proposal is to construct 12 new detached and terraced homes, ranging from single-storey to three-storeys, with a new access road.
- Residential units
- 12
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 for demolition of the existing house and outbuildings (c. 326.5 sqm) and construction of a new residential development comprising 12 no. 2-4 bed detached and terraced units (ranging in size from c. 89 sqm to c. 202 sqm gross floor area). One of the houses is a bungalow and the remainder 3-storey, all with off-street parking. The development to be served via a new access from knocksinna crescent. All associated site development, landscaping, boundary treatment works and services pro...
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 1 November 2016. A completion certificate was lodged on 21 June 2018.
10 commencement notices are linked to this development.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 3 Knocksinna Wood, Blackrock, County Dublin | Mar 2026 | €1,130,000 | 22 m |
| 5 Knocksinna Wood, Blackrock, Co. Dublin | Jul 2025 | €1,010,000 | 32 m |
| Reendonegan, Granvillle Rd, Blackrock | Apr 2026 | €2,397,500 | 86 m |
| 10 Granville Rd, Blackrock, Dublin | May 2025 | €1,320,000 | 93 m |
| 17 Granville Rd, Blackrock, Dublin | Aug 2025 | €2,030,000 | 143 m |
| Amberly, 17a Granville Rd, Blackrock | Jan 2025 | €1,255,000 | 145 m |
| 59 Granville Park, Blackrock, Dublin | May 2026 | €1,140,000 | 204 m |
| 66 Granville Park, Blackrock, Co Dublin | Jul 2025 | €995,000 | 275 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 received27 October 2015
- Decision issued23 November 2015
- Appeal submitted16 December 2015
- Appeal decided26 May 2016
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
Permission for proposed development will comprise demolition of the existing house and outbuildings…
Trianon and No. 9 Knocksinna Crescent, off Granville Road, Blackrock, Co. Dublin
D14A/0440Dún Laoghaire–RathdownLodged 10 Jul 2014Housing estate
- Granted30 m away
Planning permission is sought for the retention of — porch to front of house
Trianon, Granville Road, Blackrock, Co. Dublin
D11B/0173Dún Laoghaire–RathdownLodged 19 May 2011Retention
- Granted40 m away
For alterations to the front facade
9, Knocksinna Crescent, Foxrock, Dublin 18
D06B/0205Dún Laoghaire–RathdownLodged 13 Mar 2006Alterations
- Granted40 m away
Permission for relocation of vehicular entrance including provisions of 2 no. new entrance piers and dishing…
9, Knocksinna Crescent, off Granville Park, Blackrock, Co. Dublin
D15A/0487Dún Laoghaire–RathdownLodged 31 Jul 2015Infrastructure
- Granted40 m away
Alterations and extensions to existing single storey four bedroom detached dwelling resulting in an increase…
11, Knocksinna Crescent, Foxrock, Dublin 18
D07B/0915Dún Laoghaire–RathdownLodged 8 Nov 2007Extension
- Granted50 m away
Alterations and extensions to existing single storey four bedroom detached dwelling comprising, a) Demolition…
11, Knocksinna Crescent, Foxrock, Dublin 18
D08B/0797Dún Laoghaire–RathdownLodged 28 Nov 2008Extension
- Granted60 m away
Permission for proposed single storey extensions to front, side and rear of the existing detached bungalow.…
13, Knocksinna Crescent, Foxrock, Dublin 18
D13A/0642Dún Laoghaire–RathdownLodged 5 Dec 2013Extension
- Granted60 m away
The construction of a two-storey extension to the rear including rooflights and associated landscaping works
13, Knocksinna Crescent, Foxrock, Dublin 18, D18C3C5
D24B/0499/WEBDún Laoghaire–RathdownLodged 19 Nov 2024Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- RefusedHousing estate
Permission for proposed development will comprise demolition of the existing house and outbuildings…
Trianon and No. 9 Knocksinna Crescent, off Granville Road, Blackrock, Co. Dublin
D14A/0440Dún Laoghaire–RathdownLodged 10 Jul 2014
- WithdrawnHousing estate
Permission for demolition of existing bungalow and associated outbuildings, construction of 14 no. 4-bed…
Site at Clonkeen Road, in close proximity to its junction with Old Bray Road, Cabinteely, Dublin 18
D15A/0318Dún Laoghaire–RathdownLodged 13 May 2015
- WithdrawnHousing estate
Permission is sought for the demolition of 1 no. dwelling house and the construction of a residential…
Fernhill Cottage, Kilgobbin Lane, Stepaside, Dublin 18
D10A/0220Dún Laoghaire–RathdownLodged 23 Apr 2010
- RefusedHousing estate
A proposed new housing development consisting of 12 residential units. The development will comprise of the…
Togher More , Roundwood , Co Wicklow
2360451WicklowLodged 27 Nov 2023
- GrantedApartments
Permission for the demolition of partly constructed dwelling; improvement of pedestrian public right of way;…
0.64 ha site comprising former Aberdour, Stillorgan Road, pedestrian public right of way from Granville Road to Stillorgan Road & carriageway & footpath off Knocksinna Court off Granville Road, Foxrock, Dublin 18
D16A/0904Dún Laoghaire–RathdownLodged 4 May 2017
- GrantedHousing estate
Permission for the demolition of the existing structures on site and the construction of 19 no. residential…
Site of c.0.437 hectares at Killart, Clonkeen Road, off the Old Bray Road and bounded by the N11 to the North, Cornelscourt, Dublin 18
D15A/0395Dún Laoghaire–RathdownLodged 15 Jun 2015
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