Dún Laoghaire-Rathdown County Council · D25B/0727/WEB
The Gables, Sycamore Crescent, Mount Merrion, Dublin, A94Y8D2
Approved in Mar 2026. Building started in 2026.
- 21 Dec 2025Received
- 20 Feb 2026Approved
- 25 Mar 2026Final approval
- 22 Jul 2026Building started
- Status
- Building startedi
- Decision
- Approved · 20 Feb 2026
- Council
- Dún Laoghaire-Rathdown County Council
- Type
- Permission
- Site
- 592 m²
What’s proposed
Planning permission to: (i) Construct a two storey East facing side and front ex…
Cut short by the council feed. Full text ↗
Planning details
- Reference
- D25B/0727/WEB
- Local authority
- Dún Laoghaire-Rathdown County Council
- Status
- Commenced · register status “Final Grant”
- Received
- 21 Dec 2025
- Observations close
- 3 Feb 2026 (closed 272 days ago)
- Decision due
- 23 Feb 2026 · decided 20 Feb 2026
- Decision
- Grant permission on 20 Feb 2026
- Site area
- 592 m² from the mapped boundary, not the council's figure
What could you build here?Opens pre-filled with “two-storey side and front and rear extension” — how the same work went for the houses around here.
Nearby 31 · 500 m · 12 months
Distance
Time
- Open29 Sycamore Road, Mount Merrion, Co. Dublin, A94Y3C1
- Open11 Trees Avenue, Mount Merrion, Blackrock, Co. Dublin, A94 W2A8
- Awaiting decision79 Merrion Park, Blackrock, Co. Dublin, A94ED70
- Awaiting decision9, Roebuck Avenue, Mount Merrion, Co. Dublin, A94K3V6
- Withdrawn38, Woodlands Park, Blackrock, Co. Dublin, A94KN76
- GrantedApplegreen, Stillorgan Road, Blackrock, Dublin, A94AN81
- WithdrawnApplegreen, Stillorgan Road, Blackrock, Co. Dublin, A94AN81
- Granted42, Sycamore Road, Mount Merrion, Blackrock, Co. Dublin, A94Y1T0
Show all 31
- Commenced33, Priory Avenue, Stillorgan, Co. Dublin, A94PY59
- Awaiting decisionNational Mobility Hubs Pilot: Dún Laoghaire-Rathdown, 73 Locations Across the Council's Administrative Area, Dún Laoghaire-Rathdown
- Granted100, The Rise, Mount Merrion, Blackrock, Co. Dublin, A94N7Y3
- Withdrawn100, The Rise, Mount Merrion, Co Dublin, A94N7Y3
- Commenced93, South Avenue, Mount Merrion, Co. Dublin, A94F9X6
- Granted81, South Avenue, Mount Merrion, Blackrock, Co. Dublin, A94H1K0
- Granted38A Greenfield Road (to west side of 38 Balnagowan, Greenfield Road), Mount Merrion, Blackrock, A94W2R6
- Granted18, Greenfield Road, Mount Merrion, Dublin, A94A0W7
- Withdrawn18, Greenfield Road, Mount Merrion, Dublin, A94A0W7
- Granted3, Merrion Park, Blackrock, Co. Dublin, A94FR66
- Commenced12, The Close, Mount Merrion, Blackrock, Co. Dublin, A94DH57
- Granted7, Woodlands Park, Blackrock, Co. Dublin, A94V447
- Granted38, Stillorgan Road, Blackrock, Dublin, A94A2W2
- Commenced17, Priory Avenue, Stillorgan, Dublin, A94E206
- Commenced56, Trees Road Lower, Mount Merrion, Dublin, A94X9X5
- Granted3 Woodlands Park, Blackrock, Co. Dublin, A94FW73
- Granted13 Priory Drive, Stillorgan, Dublin, A94V122
- Granted16a, Woodlands Park, Stillorgan, Dublin, A94HF96
- Withdrawn16a, Woodlands Park, Stillorgan, Co. Dublin, A94HF96
- Granted69 Deerpark Road (first floor), Mount Merrion, Blackrock, County Dublin, A94E9D3
- GrantedThornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Co. Dublin, and Thornhill House (a Protected Structure) A94W7C5
- Refused38A Greenfield Road (to west side of 38 Balnagowan, Greenfield Road), Mount Merrion, Blackrock, Co. Dublin A94W2R6
- CommencedPalmyra, 39 Woodlands Park, Stillorgan, Co. Dublin, A94W279
- GrantedSadhana, 118 Mount Merrion Avenue, Blackrock, Dublin, A94F1P2
- GrantedSite to the side of 38 Greenfield Road, Mount Merrion, Blackrock, Co. Dublin, A94W2R6
- Granted134 Mount Merrion Avenue, Blackrock, Co. Dublin, A94F2Y6
- Appeal decidedTalbot Hotel Stillorgan, Stillorgan Road, Blackrock, Co. Dublin, A94V6K5
- Commenced75 Deerpark Road, Mount Merrion, Co. Dublin, A94D984
- GrantedRear of 75, Deerpark Road, Mount Merrion, Blackrock, DUBLIN, A94D984
- Withdrawn75 Deerpark Road, Mount Merrion, Co. Dublin, A94D984
- Granted20, Eastwood, Trees Avenue, Mount Merrion, Blackrock, DUBLIN, A94N5W9
- GrantedUnit 4, The Pinnacle, Deerpark Road, Mount Merrion, Blackrock, DUBLIN, A94V9X8
- GrantedUnit 3, The Pinnacle, Deerpark Road, Mount Merrion, Blackrock, DUBLIN, A94W2Y6
- GrantedUnit 1,The Pinnacle, Deerpark Road, Mount Merrion, Blackrock, Co. Dublin
- GrantedUnit 2,The Pinnacle, Deerpark Road, Mount Merrion, Blackrock, Co. Dublin
- Commenced66, Dunaree, South Avenue, Mount Merrion, Co Dublin, A94 Y4C9
- Appeal decided48, The Rise, Mount Merrion, Blackrock, Dublin, A94A3Y6
- Commenced66, The Rise, Mount Merrion, Blackrock, Dublin, A94X9F6
- GrantedThe Gables, 17A Woodlands Park, Stillorgan, Dublin, A94VX84
- WithdrawnThe Gables, 17A Woodlands Park, Blackrock, Co. Dublin, A94VX84
- Commenced49, North Avenue, Mount Merrion, Blackrock, Dublin, A94A6P9
- Withdrawn17A, The Gables, Woodlands Park, Stillorgan, Dublin, A94VX84
- Commenced73, Deerpark Road, Mount Merrion, Co Dublin, A94C4E7
- WithdrawnThe Gables, 17A Woodlands Park, Stillorgan, Dublin, A94VX84
- Refused71, Deerpark Road, Mount Merrion, Dublin
- Commenced51, Sycamore Road, Mount Merrion, Blackrock, Dublin, A94K8X7
- Commenced39 Greenfield Road, Mount Merrion, Blackrock, Co Dublin, A94 K7Y0
- Withdrawn39, Greenfield Road, Mount Merrion, Blackrock, Co Dublin, A94 K7Y0
- Commenced9, Trees Avenue, Mount Merrion, Stillorgan, Co Dublin, A94A3Y0
- Granted8, Greenfield Road, Mount Merrion, Blackrock, Dublin, A94D2E9
- Withdrawn8, Greenfield Road, Mount Merrion, Blackrock, Co. Dublin, A94D2E9
- WithdrawnNo. 9, Trees Avenue, Mount Merrion, Stillorgan, Co. Dublin, A94A3Y0
- Refused48, The Rise, Mount Merrion, Blackrock, Co. Dublin, A94A3Y6
- Commenced29, Trees Road Lower, Mount Merrion, Blackrock, Dublin, A94P2C6
- Granted2 The Close, Mount Merrion, Blackrock, Dublin, A94 NX27
- Appeal decided8, Sycamore Crescent, Mount Merrion, Blackrock, Co. Dublin, A94H9P0
- Appeal decided51, Woodlands Park, Stillorgan, Dublin, A94CF25
- Commenced9, Roebuck Avenue, Mount Merrion, Stillorgan, Co. Dublin, A94K3V6
- Commenced8, Greenfield Road, Mount Merrion, Blackrock, Co. Dublin, A94 D2E9
- Commenced30, Priory Drive, Stillorgan, Dublin, A94 CA32
- AppealedThornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94W7C5
- Commenced22, Woodlands Park, Stillorgan, Dublin, A94PF22
- Withdrawn22, Woodlands Park, Mount Merrion Avenue, Blackrock, Co. Dublin, A94PF22
- Withdrawn9, Roebuck Avenue, Mount Merrion, Blackrock, Dublin, A94K3V6
- Commenced25, Greygates, Stillorgan Road, Blackrock, Dublin, A94E2X0
- Commenced15, Chestnut Road, Mount Merrion, Blackrock, Dublin, A94EK46
- Granted65, Merrion Park, Blackrock, Dublin, A94X279
- Commenced51, Woodlands Park, Stillorgan, Dublin, A94CF25
- Commenced22, Trees Road Lower, Mount Merrion, Blackrock, Dublin, A94N7F4
- Commenced106, The Rise, Mount Merrion, Blackrock, Dublin, A94KN63
- Commenced9, Priory Drive, Stillorgan, Dublin, A94W218
- Commenced6, Greygates, Stillorgan Road, Blackrock, Dublin, A94H2D5
- Withdrawn9, Priory Drive, Stillorgan, Dublin, A94W218
- GrantedThe Pinnacle, Deerpark Road, Mount Merrion, Co. Dublin
- Granted76, Trees Road Lower, Mount Merrion, Blackrock, Dublin, A94Y7A4
- CommencedNo 7 Chestnut Road, Mount Merrion, Co. Dublin
- CommencedSite at Thornhill Oaks, Mount Merrion, Blackrock, Co Dublin
- Commenced45, Grove Lodge, Woodlands Park, Stillorgan, Dublin, A94F248
- Withdrawn45 Woodlands Park, Blackrock, Dublin, A94F248
- CommencedLands to the rear of 38 & 38A Greenfield road (formerly side and rear of A94W2R6) and 44A North Avenue A94V9W3, Mount Merrion, Blackrock, Co Dublin
- Commenced132, Melmore, Mount Merrion Avenue, Blackrock, Dublin, A94X9X4
- WithdrawnSite at 40 Thornhill Oaks, Mount Merrion, Blackrock, Co Dublin
- Commenced8, Woodlands Park, Blackrock, Dublin, A94Y426
- Appeal decided29, Trees Road, Mount Merrion, Blackrock, Dublin, A94P2C6
- Commenced9, Sycamore Road, Mount Merrion, Blackrock, Dublin, A94Y9Y0
- Appeal decided8, Sycamore Road, Mount Merrion, Blackrock, Dublin, A94A6P7
- Commenced50, North Avenue, Mount Merrion, Blackrock, Dublin, A94D9K3
- Commenced9, Greygates, Mount Merrion, Co. Dublin, A94N9D5
- CommencedScoil San Treasa The Rise, Mount Merrion, Blackrock, Dublin, A94EK75
- Commenced23, Sycamore Road, Mount Merrion, Blackrock, Dublin, A94E3P2
- Commenced50, Casa Maria, Woodlands Park, Stillorgan, Dublin, A94HF58
- CommencedNo. 45 Woodlands Park, Blackrock, Co. Dublin, A94 F248
- Commenced39, Sycamore Road, Mount Merrion, Blackrock, Dublin, A94R3N8
- Commenced5, Trees Road Lower, Mount Merrion, Blackrock, Dublin, A94XP97
- Granted6, Priory Drive, Stillorgan, Dublin, A94X205
- Commenced104, The Rise, Mount Merrion, Blackrock, Dublin, A94R8C9
- Refused6, Sycamore Road, Mount Merrion, Blackrock, Dublin, A94C3H7
- Granted66, Glenabbey Road, Mount Merrion, Blackrock, Dublin, A94N8P4
- Refused50, North Avenue, Mount Merrion, Blackrock, Dublin, A94D9K3
- Commenced62, Glenabbey Road, Mount Merrion, Dublin, A94K0V2
- WithdrawnUnion Cafe & Kennedys Public House, bounded by Deerpark Road, North Avenue and Wilson Road, Mount Merrion, Blackrock, Co Dublin, A94Y6C2
- GrantedOatlands College, Mount Merrion, Blackrock, Co. Dublin
- Granted30, Merrion Park, Blackrock, Dublin, A94Y670
- Granted43C, Woodlands Park, Stillorgan, Dublin, A94CD82
- Granted6, Sycamore Road, Mount Merrion, Dublin, A94C3H7
- Granted10, Priory Drive, Stillorgan, Dublin, A94DW02
- WithdrawnSite at Thornhill Oaks, Mount Merrion, Blackrock, Co Dublin
- Granted8 Woodlands Park, Blackrock, Co. Dublin.
- Awaiting decision31A TheRise,MountMerrion, Co.Dublin.
- Commenced67, South Avenue, Mount Merrion, Dublin, A94 E2Y9
- CommencedSadhana, 118, Mount Merrion Avenue, Blackrock, Co Dublin, A94F1P2
- Granted46 Trees Road Lower, Stillorgan, Blackrock, Co Dublin, A94D2P3
- RefusedCircle K Service Station, Greygates, Stillorgan Road, Blackrock, Co. Dublin, A94 H3K4
- Commenced71 The Rise, Mount Merrion, Blackrock, Co Dublin
- Withdrawnon the grounds of Scoil San Treasa and Church of St Therese, Mount Merrion, Blackrock, Co. Dublin
- GrantedCircle K Service Station, Greygates, Stillorgan Road, Blackrock, Co. Dublin, A94 H3K4
- Granted106, The Rise, Mount Merrion, Dublin, A94KN63
- Commenced54, North Avenue, Mount Merrion, Co. Dublin
- Granted16, Sycamore Road, Mount Merrion, Blackrock, Co. Dublin, A94N6X7
- CommencedThe Rectory, 131 Mount Merrion Avenue, Blackrock, Co Dublin, A94 W2P6
- Commenced54, The Rise, Mount Merrion, Co. Dublin
- Appeal decided44C North Avenue, Mount Merrion, Co. Dublin
- Appeal decided44A and 44b North Avenue, Mount Merrion, Co Dublin, to the rear of 44a North Avenue, Mount Merrion, Co Dublin
- Commenced1, South Hill Park, Booterstown, Blackrock, Co Dublin
- Commenced30, The Rise, Mount Merrion, Blackrock, Co Dublin, A94X3X6
- Withdrawn44C North Avenue, Mount Merrion, Co Dublin, to the rear of 44a and 44b North Avenue, Mount Merrion, Co Dublin
- CommencedThe Rectory, 131 Mount Merrion Avenue, Blackrock, Co. Dublin A94 W2P6
- GrantedThe Rectory, 131 Mount Merrion Avenue, Blackrock, Co. Dublin, A94 W2P6
- Commenced86, The Rise, Mount Merrion, Co Dublin
- Withdrawn44b, North Avenue, Mount Merrion, Co Dublin, to the rear of, 44a North Avenue, Mount Merrion, Co Dublin
- Commenced66 Glenabbey Road, Mount Merrion, Blackrock, Co. Dublin, A94 N8P4
- Granted77 South Avenue, Mount Merrion, Blackrock, County Dublin
- Granted3, South Hill Park, Booterstown, A94V568
- Appeal decided45 Woodlands Park, Blackrock, Co. Dublin (A94 F248)
- GrantedNorthwest Corner of Wilson Road and North Avenue, Mount Merrion, Co. Dublin
- Commenced64 Glenabbey Road, Mount Merrion, Blackrock, Co. Dublin, A94K2F3
- Commenced16 Sycamore Road, Mount Merrion, Blackrock, Co. Dublin, A96 N6X7
- GrantedUnion Café and Kennedy's Public House, bounded by Deerpark Road, North Avenue and Wilson Road, Mount Merrion, Blackrock, Co. Dublin
- CommencedSite of c.1.12ha at Oatlands Monastery, to the rear of Oatlands College, Mount Merrion, Blackrock, Co Dublin and at No. 2 Cherrygarth, Mount Merrion, Blackrock, Co Dublin
- GrantedBrandon, 31 Trees Road Lower, Mount Merrion, Blackrock, Co. Dublin, A94 X6Y7
- CommencedUnion Café adn Kennedy's Public House, bounded by Deerpark Road, North Avenue and Wilson Road, Mount Merrion, Blackrock,Co. Dublin
- Commenced86, The Rise, Mount Merrion, Co Dublin
- Commenced48, Priory Drive, Stillorgan, Dublin, A94A430
Homes nearby
- For sale20 Sycamore Road, Mount Merrion, Co. Dublin, A94 N7P3
- For saleApartment 33, Merrion Hall, Mount Merrion Avenue, Stillorgan, Co. Dublin, A94 DK88
- For sale27 Ashurst, Mount Merrion Avenue, Blackrock, Co. Dublin, A94 V046
- For saleApartment 27, Booterstown Wood, Booterstown Avenue, Booterstown, Co. Dublin, A94 V593
- For sale44 Booterstown Wood, Booterstown Avenue, Booterstown, Co. Dublin, A95 HK40
- For sale1 Booterstown Wood, Booterstown Avenue, Blackrock, Co. Dublin, A94 WE22
Development land nearby
- Permitted, not started · 15 homes granted 14 Mar 2024, expires 14 Mar 2029 — Priory Drive (0.4 km)
- Permitted, not started · 68 homes granted 18 Mar 2025, expires 18 Mar 2030 — Fosters Avenue (0.8 km)
- Derelict site — DERELICT, 65 DEERPARK ROAD, MOUNT MERRION, CO.DUBLIN (0.5 km)
- Residential land off Sycamore Crescent, Mount Merrion (0.1 km)
- Residential land off Grey Gates, Blackrock (0.1 km)
Building started
- 22 Jul 2026 · Builder told the council work was starting (opted out of the finish sign-off) CN0145074DR
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
- Record of Protected Structures · 3
Where this comes from
National planning feed (NPAD), fetched 11 Sept 2026, 15:18.
Source: National Planning Application Database · fetched 11 Sept 2026, 15:18
| Source | Licence | Fetched | Link |
|---|---|---|---|
| National Planning Application Database | CC BY 4.0 | 11 Sept 2026, 15:18 | open |
Summary
D25B/0727/WEB is a planning application to Dún Laoghaire-Rathdown County Council for planning permission to: (i) Construct a two storey East facing side and front ex, received on 21 Dec 2025; permission was granted on 20 Feb 2026.