Dun Laoghaire-Rathdown County Council Blackrock D17B/0170 Dún Laoghaire-Rathdown County Council · D17B/0170
57 Granville Road, Blackrock, Co Dublin Approved in 2017. Building started in 2017.
12 Apr 2017 Received 6 Jun 2017 Approved 12 Jul 2017 Final approval 21 Nov 2017 Building started Status Building started i Decision Approved · 6 Jun 2017 Council Dún Laoghaire-Rathdown County Council Type Permission Site 665 m² What’s proposed Permission for: A. A single storey extension to the side of existing house
Planning details Reference D17B/0170 Local authority Dún Laoghaire-Rathdown County Council Status Commenced · register status “Decision made” Received 12 Apr 2017 Observations close 17 May 2017 (closed 3427 days ago) Decision due 6 Jun 2017 · decided 6 Jun 2017 Decision Grant permission on 6 Jun 2017Proposed development Permission for: A. A single storey extension to the side of existing houseAs published by the register.
Site area 665 m² from the mapped boundary, not the council's figure Applicant Not published — the national feed carries no applicant name council register What could you build here?
Nearby 72 · 500 m · 5 years Open 30, Knocksinna Park, Foxrock, Dublin 18, D18K7Y0 two single-storey extensions to the existing dwelling, comprisin… · received 8 Sept 2026 · observations close 13 Oct 2026 · 198 m away Granted Ballytrain, Stillorgan Road, Galloping Green South, Dublin 18, D18 X9Y3 a first floor extension to the side of the existing… · received 24 Jun 2026 · decided 17 Aug 2026 · 169 m away Granted 108, Foxrock Park, Foxrock, Dublin 18, D18Y2N5 amendments to permitted development under Reg · received 12 Jun 2026 · decided 4 Aug 2026 · 278 m away Open National Mobility Hubs Pilot: Dún Laoghaire-Rathdown, 73 Locations Across the Council's Administrative Area, Dún Laoghaire-Rathdown 73 mobility hub sites across the Council's administrative area · received 22 May 2026 · no decision yet · 420 m away Granted Stanmore, Stillorgan Road, Foxrock, Dublin 18, D18T9N4 1) The converted single storey pitched tiled roof garage into a… · received 10 Apr 2026 · decided 2 Jul 2026 · 261 m away Appeal decided Ballytrain, Stillorgan Road, Galloping Green South, Dublin 18 the development to be retained consists of a single-storey extension… · received 13 Mar 2026 · decided 7 May 2026 · 169 m away Granted 31 Knocksinna Park, Foxrock, DUBLIN, D18C5R3 1 Unit · received 12 Mar 2026 · decided 2 Apr 2026 · 187 m away Appeal decided Lisheen, 31 Knocksinna Park, Newpark, Dublin 18, D18C5R3 subdivision of the existing site · received 12 Mar 2026 · decided 30 Apr 2026 · 187 m away Show all 72 Withdrawn 31 Knocksinna Park, Foxrock, Dublin 18, D18C5R3 subdivision of the existing site · received 3 Mar 2026 · decided 9 Mar 2026 · 204 m away Granted 38, Granville Park, Newpark, Blackrock, Co. Dublin, A94TW93 revised zinc-clad rear dormers to the south · received 23 Feb 2026 · decided 13 Apr 2026 · 297 m away Withdrawn 38, Granville Park, Blackrock, Dublin, A94TW93 revised zinc-clad rear dormers to the south · received 19 Feb 2026 · decided 23 Feb 2026 · 297 m away Granted Raford, Knocksinna, Foxrock, Dublin 18, D18A3P9 sought for a development comprising · received 23 Jan 2026 · decided 16 Mar 2026 · 367 m away Granted Knocksinna House, Knocksinna, Foxrock, Dublin 18, D18X5F6 the repair, refurbishment · received 22 Dec 2025 · decided 23 Feb 2026 · 178 m away Granted 56, Granville Park, Blackrock, Co. Dublin, A94WN52 alterations carried out to the existing detached house… · received 8 Dec 2025 · decided 1 May 2026 · 217 m away Granted 38, Granville Park, Newpark, Blackrock, Co. Dublin, A94TW93 a new front porch, Construction of a new zinc-clad rear · received 4 Dec 2025 · decided 4 Feb 2026 · 297 m away Granted 36, Knocksinna Park, Foxrock, Dublin 18, D18R1W5 the demolition · received 3 Dec 2025 · decided 4 Feb 2026 · 246 m away Commenced 10, Granville Road, Blackrock, Dublin, A94CH24 development to the existing dormer bungalow detached house with… · received 24 Nov 2025 · decided 9 Apr 2026 · 261 m away Commenced 18, Knocksinna Park, Foxrock, Dublin 18, D18T0X8 demolition of an existing garage structure to the side of the… · received 12 Nov 2025 · decided 9 Jan 2026 · 119 m away Granted 1, Willow Park, Westminster Park, Foxrock, Dublin 18, D18H1W5 a side-extension to the existing dwelling, construc… · received 25 Sept 2025 · decided 18 Sept 2026 · 304 m away Granted 15, Foxrock Court, Foxrock, Dublin 18, D18R2W5 dormer attic conversion to front · received 16 Sept 2025 · decided 6 Nov 2025 · 321 m away Refused 2 Knocksinna Court, Granville Road, Blackrock, Co. Dublin, A94CF75 sought to retain the existing enlarged entrance vehicula… · received 1 Sept 2025 · decided 22 Oct 2025 · 147 m away Commenced Avalon, 16 Foxrock Green, Foxrock, Dublin 18, D18C8X6 the removal of the existing pitched roofed singl… · received 15 Aug 2025 · decided 1 Oct 2025 · 354 m away Withdrawn Avalon, 16 Foxrock Green, Foxrock, Dublin, D18C8X6 the removal of the existing pitched roofed singl… · received 14 Aug 2025 · decided 15 Aug 2025 · 354 m away Commenced Shaundar, Newtownpark Avenue, Blackrock, Dublin, A94Y5D2 (1) removal of the roof over the single storey parts of the existing… · received 17 Jul 2025 · decided 10 Sept 2025 · 427 m away Commenced 67, Granville Park, Blackrock, Dublin, A94TD28 alterations To The Works Previously Granted Under Plann · received 14 Jul 2025 · decided 4 Sept 2025 · 164 m away Commenced 15, Avonmore, Leopardstown Road, Foxrock, Dublin 18, D18 X2K6 sought for alterations to front elevation to include for an additiona… · received 9 Jul 2025 · decided 1 Sept 2025 · 413 m away Granted 27, Foxrock Court, Foxrock, Dublin 18, D18W7C0 attic conversion with dormer to rear roof to accommodate… · received 11 Jun 2025 · decided 28 Jul 2025 · 350 m away Commenced 38, Foxrock Park, Foxrock, Dublin 18, D18T1K8 demolition of conservatory to rear, new single storey extension to… · received 9 Jun 2025 · decided 25 Jul 2025 · 398 m away Granted 4, Thornberry, Granville Road, Blackrock, Dublin, A94RH95 3 units · received 5 Jun 2025 · decided 19 Jun 2025 · 332 m away Appeal decided Thornberry, 4 Granville Road, Blackrock, Dublin, A94RH95 the demolition of existing two-storey (over partial basement)… · received 5 Jun 2025 · decided 23 Jul 2025 · 332 m away Granted 63 Foxrock Park, Foxrock, Co. Dublin, D18H6K8 sought for the widening of the vehicular access · received 28 Mar 2025 · decided 19 May 2025 · 261 m away Refused Shaundar, Newtownpark Avenue, Blackrock, Co. Dublin, A94Y5D2 (1) the demolition of 76 sq · received 26 Mar 2025 · decided 19 May 2025 · 427 m away Commenced 108, Foxrock Park, Foxrock, Dublin 18, D18Y2N5 removal of existing extension to front, side · received 24 Mar 2025 · decided 13 May 2025 · 278 m away Granted The Elms, Kill Lane, Dublin 18, D18 R6P6 sought for 1 · received 25 Feb 2025 · decided 15 Apr 2025 · 496 m away Withdrawn The Elms, Kill Lane, Foxrock, Dublin 18, D18R6P6 1) The removal of the existing garage · received 13 Feb 2025 · decided 24 Feb 2025 · 496 m away Granted 73 Foxrock Park, Foxrock, Dublin, D18 H9F5 the addition of rendered external wall insulation on the existing… · received 4 Feb 2025 · decided 25 Feb 2025 · 198 m away Withdrawn Shaundar, Newtownpark Avenue, Blackrock, Co. Dublin, A94Y5D2 (1) Partial demolition of existing 2 storey, 4 bed dwelling (2)… · received 19 Dec 2024 · decided 14 Feb 2025 · 427 m away Granted The Divine Master Convent, Stillorgan Road, Blackrock, Dublin, A94V670 1 · received 18 Dec 2024 · decided 3 Jul 2025 · 464 m away Commenced 13, Knocksinna Crescent, Foxrock, Dublin 18, D18C3C5 a two-storey extension to the rear including rooflights · received 19 Nov 2024 · decided 17 Jan 2025 · 212 m away Granted Funchal & Garryknock, Stillorgan Road, Foxrock, Dublin 18 development at a site of approximately 0 · received 22 Oct 2024 · decided 13 Dec 2024 · 186 m away Withdrawn 16, Avalon, Foxrock Green, Dublin 18, D18C8X6 the removal of the existing pitched roofed single storey building in… · received 30 Aug 2024 · decided 2 Sept 2024 · 354 m away Commenced Funchal and Garryknock, Stillorgan Road, Foxrock, Dublin 18 kingscroft Developments Limited seeks planning permission for… · received 9 Aug 2024 · decided 3 Oct 2024 · 186 m away Granted Saint Patrick's Girls National School, Foxrock Avenue, Dublin 18, D18V659 a new standalone, two-storey, 4no · received 7 Aug 2024 · decided 27 Sept 2024 · 270 m away Commenced 21, Holly Park Avenue, Blackrock, Dublin, A94EK77 refurbishment · received 2 Aug 2024 · decided 23 Sept 2024 · 411 m away Commenced Tara, Kill Lane, Foxrock, Dublin 18, D18E3W0 the development of 1 · received 1 Aug 2024 · decided 23 Sept 2024 · 496 m away Withdrawn St. Patrick's GNS, Hollypark, Foxrock Avenue, Foxrock, Dublin 18, D18 V659 a new standalone, two-storey, 4no · received 31 Jul 2024 · decided 6 Aug 2024 · 270 m away Withdrawn Funchal and Garryknock, Stillorgan Road, Foxrock, Dublin 18 kingscroft Developments Limited seeks planning permission for… · received 19 Jul 2024 · decided 25 Jul 2024 · 186 m away Withdrawn 1, Chestnut Park, Westminster Park, Dublin 18, D18X9F6 a rear facing zinc clad dormer at roof level to an attic habitable… · received 10 Jul 2024 · decided 15 Aug 2024 · 297 m away Commenced Avila (formerly) Windrush, Knocksinna, Foxrock, Co Dublin at lands located to the rear · received 3 Jul 2024 · decided 29 Oct 2024 · 414 m away Appeal decided Willow House Childcare, Newtownpark Avenue, Blackrock, Dublin, A94WY28 change of use of existing independent dwelling at first floor level… · received 3 May 2024 · decided 25 Jun 2024 · 494 m away Granted 108, Foxrock Avenue, Dublin 18, D18T9H3 the extension · received 11 Apr 2024 · decided 31 May 2024 · 343 m away Commenced 9 Granville Road, Blackrock, Dublin, A94YY43 refurbishment · received 21 Mar 2024 · decided 15 May 2024 · 277 m away Commenced 41, Granville Park, Blackrock, Dublin, A94PX67 a new flat roofed entrance porch · received 14 Mar 2024 · decided 7 May 2024 · 232 m away Commenced 152, Foxrock Park, Dublin 18, D18T0H3 the demolition of an existing single storey extension to the rear, the · received 17 Jan 2024 · decided 8 Mar 2024 · 338 m away Commenced 5, Chestnut Park, Westminster Park, Dublin 18, D18W8N2 29 · received 13 Dec 2023 · decided 13 Feb 2024 · 279 m away Appeal decided Stanmor, Stillorgan Road, Dublin 18, D18T9N4 demolish the existing detached garage · received 26 Oct 2023 · decided 13 Dec 2023 · 261 m away Commenced 4, Knocksinna Park, Dublin 18, D18N7X8 a single storey extension to the front, side · received 29 Sept 2023 · decided 14 Nov 2023 · 75 m away Granted 27 Knocksinna Park, Dublin 18, D18P9E5 bay Window extention (10 sq · received 29 Sept 2023 · decided 22 Nov 2023 · 147 m away Granted 84, Foxrock Avenue, Dublin 18, D18K4A0 dormer extension to the rear · received 29 Aug 2023 · decided 18 Oct 2023 · 431 m away Granted Suantraí, Knocksinna, Dublin 18, D18PX32 single storey extension to the rear, glass roof over light well · received 5 May 2023 · decided 13 Nov 2023 · 391 m away Granted 22, Sycamore Grove, Westminster Park, Dublin 18, D18F6H0 the widening of parking area at the front of the propert… · received 24 Jan 2023 · decided 14 Mar 2023 · 369 m away Granted Rookwood, 19 Avonmore, Foxrock, Dublin 18 a)previously constructed single storey (49 · received 12 Dec 2022 · decided 13 Feb 2023 · 342 m away Granted 52 Foxrock Park, Foxrock, Dublin 18, D18N2F2 a ground floor rear extension · received 19 Jul 2022 · decided 5 Sept 2022 · 312 m away Granted 67 Foxrock Avenue, Deansgrange, Dublin 18, D18 F9F2 demolition of the existing side single st · received 20 Jun 2022 · decided 12 Aug 2022 · 271 m away Granted 25 Foxrock Mount, Foxrock, Dublin 18 sought for a proposed single storey porch · received 16 Jun 2022 · decided 27 Jul 2022 · 176 m away Withdrawn 67 Foxrock Avenue, Deansgrange, Dublin 18, D18 F9F2 demolition of the existing side single storey · received 3 Jun 2022 · decided 20 Jun 2022 · 271 m away Commenced 49 Foxrock Park, Foxrock, Dublin 18 sought for lateral extensions of existing, single story, porch roo… · received 26 Apr 2022 · decided 15 Jun 2022 · 324 m away Granted Raford, Knocksinna, Dublin 18, D18A3P9 sought for a development · received 4 Mar 2022 · decided 27 Apr 2022 · 367 m away Granted 41, Granville Park, Blackrock, Co Dublin, A94PX67 partial demolition of · received 15 Feb 2022 · decided 7 Apr 2022 · 232 m away Granted 42 Granville Park, Blackrock, Co. Dublin, A94 HY40 sought for an extension to a detached · received 31 Jan 2022 · decided 16 Mar 2022 · 273 m away Commenced The Gables, Kill Lane, Dublin 18, D18 A9N9 sought for alterations to existing front · received 25 Nov 2021 · decided 26 Jan 2022 · 490 m away Commenced No. 9 Knocksinna Park, Dublin 18 - Extension to exsiting side single storey · received 19 Nov 2021 · decided 18 Jan 2022 · 36 m away Explore this area on the map →
Homes nearby For sale 19 Knocksinna Park, Blackrock, Co. Dublin, D18 V8N9 Planning near this home · 6 bed · house · 82 m away For sale Stanmore, Stillorgan Road, Foxrock, Dublin 18, D18 T9N4 Planning near this home · 5 bed · house · 298 m away For sale Apartment 3, Kelston Hall, Foxrock, Dublin 18, D18 F594 Planning near this home · 2 bed · apartment · 350 m away For sale Apartment 12, One Springfield Park, Foxrock, Dublin 18, D18 PC6T Planning near this home · 2 bed · apartment · 352 m away For sale 26 Sycamore Grove, Westminster Park, Foxrock, Dublin 18, D18 C2H4 Planning near this home · 3 bed · house · 392 m away For sale 9 Sefton Hall, Kelston, Foxrock, Dublin 18, D18 H312 Planning near this home · 2 bed · apartment · 392 m away For sale 1A Granville Lodge, Granville Road, Blackrock, Co. Dublin, A94 P2P7 Planning near this home · 3 bed · house · 402 m away For sale 2 Kelston Avenue, Foxrock, Dublin 18, D18 WR68 Planning near this home · 3 bed · semi-d · 465 m away For sale 8 Kelston Park, Foxrock, Dublin 18, D18 YT93 Planning near this home · 5 bed · detached · 491 m away For sale Simla, Kill Lane, Foxrock, Dublin 18, D18 W2F6 Planning near this home · 5 bed · detached · 516 m away For sale Mallard, Foxrock Park, Kill Lane, Foxrock, Dublin 18, D18 EA26 Planning near this home · 5 bed · semi-d · 564 m away For sale 19 Dargle Road, Blackrock, Co. Dublin, A94 KH98 Planning near this home · 4 bed · semi-d · 599 m away Development land nearby From Buildable , our sister site for development land in Dublin.
Permission running out · 12 homes granted 16 Sep 2022, expires 16 Sep 2027 — Fey Yerra (0.9 km) Permitted, not started · 14 homes granted 05 Feb 2026, expires 05 Feb 2031 — Rockall (0.8 km) Stalled build · 23 homes; commenced 01 Mar 2018, no completion certificate, planned end Jun 2018 — Sringfield House, Springfield Park, Foxrock, Dublin 18 (0.6 km) Residential land off Foxrock Park, Foxrock, Dublin 18 (0.1 km) Residential land off Knocksinna Wood, Blackrock (0.1 km) See all development land near here →
Building started 21 Nov 2017 · Builder told the council work was starting CN0033599DR Zoning R2 — Existing residential An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.
R2.6 — Existing residential An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.
Protections nearby 250 m No mapped flood area nearby.
Where this comes from National planning feed (NPAD), fetched 11 Sept 2026, 15:18.
Source: npad · fetched 11 Sept 2026, 15:18 Source Licence Fetched Link npad CC-BY-4.0 11 Sept 2026, 15:18 open
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Summary D17B/0170 is a planning application to Dún Laoghaire-Rathdown County Council for permission for: A. A single storey extension to the side of existing house, received on 12 Apr 2017; permission was granted on 6 Jun 2017.
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