South Dublin County Council Firhouse-Bohernabreena SD04B/0486 South Dublin County Council · SD04B/0486
1, Castlefield Court, Knocklyon, Dublin 16 Approved in 2005. Approval ran out in 2010.
28 Feb 2005 Received 22 Mar 2005 Approved 4 May 2005 Final approval 4 May 2010 Approval ran out Status Approved i Decision Approved · 22 Mar 2005 Council South Dublin County Council Type Permission Site 385 m² What’s proposed Single storey extension to the rear, single storey extension to the side and rear joining onto the existing garage which is to be converted to a playroom with 2 no. new windows to the front
Planning details Reference SD04B/0486 Local authority South Dublin County Council Status Granted · register status “Decision” Received 28 Feb 2005 Observations close 4 Apr 2005 (closed 7855 days ago) Decision due 3 Apr 2005 · decided 22 Mar 2005 Decision Grant permission on 22 Mar 2005Proposed development Single storey extension to the rear, single storey extension to the side and rear joining onto the existing garage which is to be converted to a playroom with 2 no. new windows to the frontAs published by the register.
Site area 385 m² from the mapped boundary, not the council's figure Applicant Not published — the national feed carries no applicant name council register Nearby 58 · 500 m · 5 years Open 75, Monalea Grove, Firhouse, Dublin 24, D24 K1W3 conversion of existing attic space comprising of modification of… · received 13 Aug 2026 · no decision yet · 419 m away Granted 1a, Monalea Park, Firhouse, Dublin 24 modifications to previously granted application SD25A/0084 to… · received 18 Jul 2026 · decided 11 Sept 2026 · 312 m away Open 73, Glenvara Park, Knocklyon, Dublin 16, D16EH74 repair of part of storm damaged boundary wall · received 12 Jun 2026 · decided 26 Jun 2026 · 310 m away Granted 2 Mount Alton Court, Knocklyon, Dublin 16, D16 HW83 re-location · received 12 May 2026 · decided 6 Jul 2026 · 431 m away Granted 8, Monalea Park, Firhouse, D24HF62 build-up of existing hip in roof to side of roof into Dutch hip at… · received 9 Apr 2026 · decided 2 Jun 2026 · 275 m away Open Proposed Social and Affordable Mixed Tenure Housing Development, on SDCC land at Castlefield Avenue, Old Knocklyon Road, Dublin 16. 29 apartments in a 3-storey block · received 5 Mar 2026 · no decision yet · 181 m away Open Knocklyon to Ballyboden Active and Sustainable Travel Scheme pursuant to the requirements of the above, South Dublin County… · received 30 Jan 2026 · no decision yet · 121 m away Commenced 2, Knocklyon Avenue, Knocklyon, Dublin 16, D16 H3K8 (i) Demolition of single storey lean-to shed · received 26 Jan 2026 · decided 12 Mar 2026 · 486 m away Show all 58 Appeal decided Lands at Castlefield Avenue, Knocklyon adjoining Mimosa Castlefield Ave, Dublin 16, D16 R2F3 2 apartments in a 2-storey block · received 6 Jan 2026 · decided 27 Feb 2026 · 237 m away Commenced Sally Park Nursing Home, Sally Park Close, Templeogue, Dublin 24, D24CC90 sought to amend Condition No · received 22 Dec 2025 · decided 28 Jan 2026 · 475 m away Commenced 115, Woodlawn Park Grove, Firhouse, Dublin 24, D24 FX9W conversion of existing attic to non-habitable space including raised… · received 16 Dec 2025 · decided 6 Feb 2026 · 492 m away Granted 219A, Glenvara Park, Knocklyon, Dublin 16 family Flat to side of 219A Glenvara Park Knocklyon Dublin 16 · received 27 Nov 2025 · decided 3 Dec 2025 · 458 m away Granted 28, Glenvara Park, Knocklyon, Dublin 16, D16 XH64 a ground floor flat roof extension to the rear, conversion of the… · received 1 Oct 2025 · decided 25 Nov 2025 · 206 m away Granted 131, Monalea Grove, Firhouse, Dublin 24, D24H1K7 new single storey flat roof hall extension to front (3 · received 4 Sept 2025 · decided 24 Oct 2025 · 278 m away Appeal decided 32, Knocklyon Heights, Knocklyon, Dublin 16, D16P2K0 divide existing site into 2 sites, demolish existing garage · received 16 Aug 2025 · decided 8 Oct 2025 · 296 m away Granted 23, Knockfield Manor, Knocklyon Road, Dublin 16, D16 A2K7 single-storey rear · received 10 May 2025 · decided 25 Jun 2025 · 166 m away Granted 100, Woodlawn Park Grove, Firhouse, Dublin 24 attic conversion for storage · received 1 May 2025 · decided 24 Jun 2025 · 431 m away Granted 33A, Monalea Grove, Knocklyon, Dublin 24, D24AT85 removal of existing wooden fence inside the eastern boundary of the… · received 11 Apr 2025 · decided 3 Jun 2025 · 287 m away Commenced 45, Orlagh Park, Knocklyon, Dublin 16, D16 T8Y1 a dormer roof on the side of the main roof, modifying the rear… · received 10 Apr 2025 · decided 3 Jun 2025 · 476 m away Commenced 1, Monalea Park, Firhouse, Dublin 24 demolish existing carport · received 7 Apr 2025 · decided 30 May 2025 · 312 m away Granted 34, Glenvara Park, Dublin 16, D16 V096 extension to rear of dwelling, converting existing carport at front… · received 31 Mar 2025 · decided 16 May 2025 · 141 m away Commenced 16, Castlefield Green, Knocklyon, Dublin 16, D16C9N1 double storey side extension to existing semi-detached house… · received 10 Mar 2025 · decided 29 Apr 2025 · 389 m away Withdrawn 84, Monalea Grove, Dublin 24, D24 F2P9 conversion of existing attic space to non-habitable storage/office… · received 10 Mar 2025 · decided 14 Mar 2025 · 374 m away Granted 23, Delaford Lawn, Knocklyon, Dublin 16 detached Two storey Three bedroom house with shared entrance to side · received 7 Mar 2025 · decided 1 May 2025 · 498 m away Withdrawn 34, Glenvara Park, Dublin 16, D16 V096 extension to rear of dwelling, converting existing carport at front… · received 6 Mar 2025 · decided 14 Mar 2025 · 141 m away Withdrawn 84, Monalea Grove, Dublin 24, D24 F2P9 conversion of existing attic space to non-habitable storage/office… · received 24 Feb 2025 · decided 4 Mar 2025 · 374 m away Commenced 16, Delaford Dr, Knocklyon, Dublin 16, D16 K7Y3 side ground floor · received 17 Feb 2025 · decided 14 Apr 2025 · 458 m away Commenced 13, Monaela grove, Firhouse, Dublin 24, D24 P3Y2 an attic conversion with hip roof to half hip Dutch gable · received 16 Jan 2025 · decided 5 Mar 2025 · 339 m away Commenced 65, Monalea Grove, Knocklyon, Dublin 24, D24 N9WT conversion of existing attic space comprising of modification of… · received 25 Nov 2024 · decided 21 Jan 2025 · 464 m away Commenced 47, Monalea Grove, Firhouse, Dublin 24, D24 F2W2 increase in height of side wall of the house to change from hipped… · received 10 Nov 2024 · decided 9 Jan 2025 · 379 m away Granted No. 8a, Castlefield Manor, Dublin 16, D16 H3C9 i, Karl Murphy, intend to apply for permission for development at No · received 2 Sept 2024 · decided 29 Oct 2024 · 328 m away Other Castlefield Avenue, Old Knocklyon Road, Knocklyon, Dublin 16 comprised of 31 homes · received 25 Jul 2024 · decided 21 Jan 2025 · 181 m away Granted Hillside, Old Knocklyon Road,, Dublin 16, D16X7R8 demolish existing detached garage · received 13 May 2024 · decided 2 Jul 2024 · 252 m away Appeal decided Lands at Castlefield Avenue, Knocklyon adjoining Mimosa Castlefield Avenue, Dublin 16, D16 R2F3 2 apartments in a 2-storey block · received 7 May 2024 · decided 1 Jul 2024 · 237 m away Granted 1, Monalea Park, Firhouse, Dublin 24 demolish existing carport & shed, erect new 2-storey 3 bedroom… · received 16 Apr 2024 · decided 13 May 2024 · 312 m away Withdrawn Lands at Castlefield Ave, Knocklyon adj. 5 Knocklyon Rd & Mimosa, Castlefield Ave, D16 detached two storey, building to provide 2 no · received 19 Mar 2024 · decided 5 Apr 2024 · 219 m away Granted 20, Castlefield Court, Dublin 16 sought for to extend the existing concrete ridge tiles & roof tiled… · received 15 Mar 2024 · decided 3 May 2024 · 81 m away Commenced 2, Knocklyon Heights, Dublin 16 a new detached two storey four bedroom dwelling house · received 1 Dec 2023 · decided 14 Dec 2023 · 249 m away Granted 156, Woodlawn Park Grove, Dublin 24 attic conversion including a dormer window to the side · received 7 Nov 2023 · decided 29 Nov 2023 · 458 m away Commenced 144, Monalea Grove, Dublin 24 conversion of existing attic to non-habitable space, raising of… · received 23 Aug 2023 · decided 10 Oct 2023 · 234 m away Withdrawn 156, Woodlawn Park Grove, Dublin 24 attic conversion including a dormer window to the side · received 10 Aug 2023 · decided 24 Aug 2023 · 458 m away Commenced 15, Castlefield Green, Dublin 16 conversion of existing attic space comprising of modification of… · received 3 Aug 2023 · decided 27 Sept 2023 · 382 m away Commenced 5, Delaford Drive, Knocklyon, Dublin 16 conversion of existing attic space comprising of modification of… · received 28 Apr 2023 · decided 25 May 2023 · 485 m away Commenced 30, Monalea Grove, Dublin 24 conversion of existing attic space comprising of modification of… · received 3 Apr 2023 · decided 29 May 2023 · 306 m away Granted 5, St Judes Court, Ballycullen, Tallaght, Dublin 24 retain change of use of attic space to habitable use on top floor of… · received 17 Jan 2023 · decided 7 Mar 2023 · 364 m away Appeal decided Knocklyon Road, Knocklyon, Dublin 16. 4 homes in a 5-storey block · received 24 Nov 2022 · decided 30 Jan 2023 · 325 m away Open D24 Neighbourhood the D24 Neighbourhood Cycle Network is an interim cycle scheme which… · received 12 Sept 2022 · no decision yet · 209 m away Granted 2, Beverly Avenue, Scholarstown Wood,, Dublin 16, D16KP52 a garage conversion into a granny flat extension to side of existing… · received 15 Aug 2022 · decided 10 Oct 2022 · 434 m away Appealed 67, Monalea Grove, Firhouse, Dublin 24 extend the exiting concrete ridge tiles to main roof to form a new… · received 10 Jun 2022 · decided 4 Aug 2022 · 469 m away Commenced 5, Delaford Lawn, Dublin 16 replacement of existing garage · received 17 May 2022 · decided 11 Jul 2022 · 464 m away Granted 139, Monalea Grove, Firhouse, Dublin 24 conversion of the existing attic to provide a new bedroom · received 14 Apr 2022 · decided 11 May 2022 · 230 m away Withdrawn Lands at Castlefield Avenue, Knocklyon, Dublin 16 detached three storey, four bedroom house in a contemporary design… · received 16 Mar 2022 · decided 16 Feb 2023 · 234 m away Granted 3, Castlefield Green, Dublin 16 conversion of attic space to non-habitable space · received 15 Mar 2022 · decided 9 May 2022 · 306 m away Appeal decided 147, Monalea Grove, Dublin 24 2 units · received 7 Dec 2021 · decided 12 Jan 2022 · 234 m away Granted 24, Castlefield Court, Knocklyon, Dublin 16 conversion of existing attic space comprising of modification of… · received 3 Dec 2021 · decided 7 Feb 2022 · 95 m away Commenced 81 Glenvara Park, Knocklyon, Dublin 16. a new one storey flat roofed porch · received 24 Nov 2021 · decided 27 Jan 2022 · 283 m away Granted 36, Beverly Avenue, Dublin 16 a single storey extension to the side · received 8 Nov 2021 · decided 11 Jan 2022 · 429 m away Withdrawn 36, Beverly Avenue, Dublin 16 a single storey extension to the side · received 28 Oct 2021 · decided 3 Nov 2021 · 429 m away Explore this area on the map →
Homes nearby For sale 12 Knockfield Manor, Knocklyon Road, Knocklyon, Dublin 16, D16 Y6E4 Planning near this home · 4 bed · house · 157 m away For sale 16 Monalea Park, Firhouse, Dublin 24, D24 H3V1 Planning near this home · 3 bed · semi-d · 324 m away For sale 22 Beverly Lawns, Knocklyon, Dublin 16, D16 F5X4 Planning near this home · 3 bed · house · 409 m away For sale 2 Homeville Court, Knocklyon, Dublin 16, D16 Y276 Planning near this home · 3 bed · end of terrace · 438 m away For sale 215 Glenvara Park, Knocklyon, Dublin 16, D16 TY82 Planning near this home · 3 bed · semi-d · 445 m away For sale 60 Monalea Grove, Firhouse, Dublin 24, D24 VE8A Planning near this home · 3 bed · semi-d · 458 m away For sale 17 Knocklyon Grove, Knocklyon, Dublin 16, D16 NW92 Planning near this home · 2 bed · bungalow · 519 m away For sale 32 Delaford Drive, Knocklyon, Dublin 16, D16 C9Y2 Planning near this home · 3 bed · semi-d · 538 m away For sale 53 Orlagh Park, Scholarstown Road, Dublin 16, D16 X9P4 Planning near this home · 4 bed · semi-d · 538 m away For sale 180 Woodlawn Park Grove, Firhouse, Dublin 24, D24 HC9Y Planning near this home · 3 bed · house · 548 m away For sale 44 Knocklyon Green, Knocklyon, Dublin 16, D16 KW20 Planning near this home · 3 bed · semi-d · 629 m away For sale 46 Carrigwood, Firhouse, Dublin 24, D24 XK2W Planning near this home · 3 bed · semi-d · 653 m away Development land nearby From Buildable , our sister site for development land in Dublin.
Permitted, not started · 100 homes granted 10 Aug 2026, expires 09 Aug 2031 — 2 Firhouse Road and Former Morton's The Firhouse Inn (0.6 km) Permitted, not started · 11 homes granted 04 May 2018, expires 02 Jul 2031 — Vista Montana (0.8 km) Permitted, not started · 55 homes granted 02 Jun 2026, expires 02 Jun 2031 — Scholarstown House (0.8 km) Public land off Castlefield Court, Castlefield Manor, Dublin 16 (0.1 km) Residential land off Castlefield Court, Knocklyon, Dublin 16 (0.1 km) See all development land near here →
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.
Protections nearby 250 m No mapped flood area nearby.
NIAH-recorded building · 2Prospect House; Knocklyon Castle
Radon risk area · 2About 1 in 10 homes in this area is likely to have high radon levels; About 1 in 20 homes in this area is likely to have high radon levels
Recorded monument · 2Castle - tower house; R149399
Where this comes from National planning feed (NPAD), fetched 11 Sept 2026, 18:51.
Source: npad · fetched 11 Sept 2026, 18:51 Source Licence Fetched Link npad CC-BY-4.0 11 Sept 2026, 18:51 open
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Summary SD04B/0486 is a planning application to South Dublin County Council for single storey extension to the rear, single storey extension to the side and rear, received on 28 Feb 2005; permission was granted on 22 Mar 2005.
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