Dún Laoghaire-Rathdown County Council · D25B/0418/WEB
20 Monkstown Road, Monkstown, Co. Dublin, A94 A242
Approved in Oct 2025. No sign of building yet.
- 24 Jul 2025Received
- 15 Sept 2025Approved
- 22 Oct 2025Final approval
- 22 Oct 2030Approval runs out
- Status
- Approved
- Decision
- Approved · 15 Sept 2025
- Council
- Dún Laoghaire-Rathdown County Council
- Type
- Permission
- Site
- 421 m²
What’s proposed
Proposed single story, flat roof extension to rear of existing property. Interna…
Cut short by the council feed. Full text ↗
Planning details
- Reference
- D25B/0418/WEB
- Local authority
- Dún Laoghaire-Rathdown County Council
- Status
- Granted · register status “Final Grant”
- Received
- 24 Jul 2025
- Observations close
- 28 Aug 2025 (closed 419 days ago)
- Decision due
- 17 Sept 2025 · decided 15 Sept 2025
- Decision
- Grant permission on 15 Sept 2025
- Site area
- 421 m² from the mapped boundary, not the council's figure
What could you build here?Opens pre-filled with “rear extension” — how the same work went for the houses around here.
Nearby 138 · 500 m · 5 years
- Open43-44 Rockpoint, Newtown Avenue, Blackrock, A94 W5H9
- Withdrawn43-44 Rockpoint, Newtown Avenue, Blackrock, Co. Dublin, A94 W5H9
- Open34, Temple Park Avenue, Blackrock, Co. Dublin, A94YP99
- Awaiting decision7, Temple Park Avenue, Blackrock, Co. Dublin, A94K2C3
- RefusedScoil Lorcáin, Cearnóg Eaton, An Charraig Dhubh, A94F596 (Protected Structure)
- GrantedCrannóg, 26 Gleann Na Smól, Stradbrook Road, Blackrock, Co Dublin, A94X982
- WithdrawnThe Coach House, 32 Monkstown Road, Monkstown, Co. Dublin, A94NX43
- WithdrawnInnismann, Queen's Park, Monkstown, DUBLIN, A94H4X0 (A Protected Structure)
Show all 138
- Refused1, Eaton Square, Blackrock, DUBLIN, A94XP27 (A Protected Structure)
- Granted11, Saint Vincent's Park, Blackrock, Co Dublin, A94HV05
- Granted8 Greenville Road, Monkstown, Dublin, A94WN47
- Withdrawn11, Saint Vincent's Park, Blackrock, Co. Dublin, A94HV05
- Withdrawn11, Saint Vincent's Park, Blackrock, Co Dublin, A94HV05
- Withdrawn11, Saint Vincent's Park, Blackrock, Co. Dublin, A94HV05
- Granted40, Maretimo Gardens East, Blackrock, Co. Dublin, A94C3V9
- RefusedGortnadrew, 9, Alma Road, Monkstown, Dublin, A94V4A3, (A Protected Structure)
- Awaiting decisionNational Mobility Hubs Pilot: Dún Laoghaire-Rathdown, 73 Locations Across the Council's Administrative Area, Dún Laoghaire-Rathdown
- Granted4 Stradbrook Cottages, Stradbrook Road, Blackrock, Co Dublin, A94Y2N3
- Withdrawn4 Stradbrook Cottages, Blackrock, Co. Dublin, A94Y2N3
- Granted3, Monkstown Road, Monkstown, Co Dublin, A94A406
- GrantedInver, 13 Greenville Road, Monkstown, Co. Dublin, A94CD60
- Granted7, Ardenza Terrace, Monkstown, Dublin, A94EK10 (A Protected Structure)
- Granted2, Greenville Road, Monkstown, Dublin, A94VF80
- GrantedSide of 2, Greenville Road, Monkstown, Dublin, A94VF80
- AppealedSite of approx. 4.56 ha at ‘St. Teresa’s House’ (A Protected Structure) and ‘St. Teresa’s Lodge’ (A Protected Structure) at Temple Hill and Temple Road, Monkstown, Blackrock, Co. Dublin
- Granted47, Montpelier Parade, Monkstown Road, Monkstown, Blackrock, Dublin, A94E3F6 (A Protected Structure)
- GrantedRear Garden, No. 3, Seapoint Avenue, Blackrock, Co. Dublin, A94X0P8
- Appeal decidedRear Garden, No. 3, Seapoint Ave, Blackrock, Co. Dublin (Protected Structure)
- Appeal decided1, Greenville Road, Blackrock, Co. Dublin, A94PY77
- Granted7, Eaton Place, Monkstown, Co. Dublin, A94PD81 - a Protected Structure
- Appeal decided17, Maretimo Gardens East, Blackrock, Co. Dublin, A94T6P5
- Withdrawn7, Eaton Place, Monkstown, Co. Dublin, A94PD81
- Commenced37, Maretimo Gardens East, Blackrock, Dublin, A94P9Y3
- Appeal decided18, Temple Park Avenue, Blackrock, Co. Dublin, A94A4X2
- Granted3, Seapoint Avenue, Blackrock, County Dublin, A94X0P8
- Commenced46, Belgrave Square West, Monkstown, Dublin, A94FT88 (A Protected Structure)
- Refused8, Montpelier Parade, Monkstown Road, Monkstown, Blackrock, Co. Dublin, A94 D763 (A Protected Structure)
- RefusedMontpelier Cottage, Montpelier Lane, Monkstown, Blackrock, Dublin, A94P7X3
- Refused12, Stradbrook Park, Blackrock, Co. Dublin
- WithdrawnMontpelier Cottage, Montpelier Lane, Monkstown, Dublin, A94P7X3
- Granted4, Stradbrook Grove, Blackrock, Dublin, A94E2W9
- RefusedThe Coach House, 32 Monkstown Road, Monkstown, Blackrock, Dublin, A94 NX43 (A Protected Structure)
- Granted15A, Greenville Road, Monkstown, Blackrock, Dublin, A94T9Y9
- Commenced2, Temple Park Avenue, Blackrock, Dublin, A94T9Y8
- Granted10, Maretimo Terrace, Newtown Avenue, Blackrock, Dublin, A94H3V5
- GrantedCarraig Rua, Temple Crescent, Blackrock, Dublin
- Granted7, Eaton Place, Monkstown, Dublin, A94PD81 (A Protected Structure)
- Granted19, Belgrave Square North, Monkstown, Co. Dublin, A94CY23 (A Protected Structure)
- Withdrawn19, Belgrave Square North, Monkstown, Co. Dublin, A94CY23 (A Protected Structure)
- CommencedWeston, 12 Alma Road, Monkstown, Blackrock, Dublin, A94FH99
- Granted11, Trafalgar Lane, Blackrock, Dublin, A94XV72
- GrantedGortinore, 11, Alma Road, Monkstown, Blackrock, Co. Dublin, A94 K7H1 (A Protected Structure)
- Granted32/33 Belgrave Square South, Monkstown, Blackrock, Dublin, A94XV02 (Protected Structure)
- Appeal decidedGortnadrew, 9 Alma Road, Monkstown, Blackrock, Dublin, A94V4A3 (A Protected Structure)
- Commenced7, Ardenza Terrace, Monkstown, Blackrock, Dublin, A94EK10 (a protected structure)
- Granted1, Stradbrook Gardens, Stradbrook Road, Blackrock, Dublin, A94A3H5
- Granted47, Montpelier Parade, Monkstown Road, Monkstown, Blackrock, Dublin, A94E3F6 (A Protected Structure)
- Appeal decided1, Greenville Road, Blackrock, Dublin, A94PY77
- Refused15A Greenville Road, Monkstown, Blackrock, Dublin, A94 T9Y9
- Granted4, Stradbrook Grove, Blackrock, Dublin, A94E2W9
- Commenced8, Shandon Park, Monkstown Road, Co. Dublin
- Appeal decided5, Stradbrook Cottages, Stradbrook Road, Blackrock, Dublin, A94W1W5
- Withdrawn1, Greenville Road, Monkstown, Blackrock, Dublin, A94PY77
- Commenced13, Trafalgar Lane, Blackrock, Dublin, A94DW64
- WithdrawnNo. 13, Trafalgar Lane, Monkstown, Co. Dublin, A94DW64
- Granted18, Trafalgar Lane, Blackrock, Co. Dublin, A94X299
- Commenced2, Newtownpark Avenue, Blackrock, Co. Dublin, A94W270
- Withdrawn2, Newtownpark Avenue, Blackrock, Dublin, A94W270
- Withdrawn1 Greenville Road, Blackrock, Co. Dublin, A94PY77
- Commenced5 Alma Road, Monkstown, Blackrock, Dublin, A94P5D2
- Withdrawn1, Greenville Road, Monkstown, Blackrock, Dublin, A94PY77
- Withdrawn5, Alma Road, Monkstown, Dublin, A94P5D2
- Commenced11, Trafalgar Lane, Blackrock, Dublin, A94XV72
- Commenced13 & 14, Maretimo Gardens East, Blackrock, Co. Dublin, A94C9P5
- Granted9, Gortnadrew, Alma Road, Monkstown, Blackrock, Dublin, A94V4A3
- Withdrawn9, Gortnadrew, Alma Road, Monkstown, Blackrock, Dublin, A94V4A3
- GrantedFormer Council Parks Depot, Temple Park Avenue, Blackrock, Dublin
- Granted81, Newtown Avenue, Blackrock, Dublin, A94X0E9
- Commenced30, Saint Vincent's Park, Blackrock, Dublin, A94HY88
- GrantedNewtown Lodge, Newtown Avenue, Blackrock, Co. Dublin, A94D2N0
- Commenced10, Saint Vincent's Park, Blackrock, Dublin, A94X489
- Commenced21, Trafalgar Terrace, Monkstown, Co Dublin.
- Commenced29, Stradbrook Lawn, Blackrock, Dublin, A94AP98
- Commenced30, Alma Road, Monkstown, Co. Dublin, A94R205
- Appeal decided1, Belgrave Square North, Monkstown, Blackrock, Dublin, A94KC81
- Appeal decidedMontpelier Cottage, Montpelier Lane, Blackrock, Dublin, A94P7X3
- Granted22, Trafalgar Terrace, Blackrock, Dublin, A94K6K1
- GrantedGreenbank, Stradbrook Road, Blackrock, Dublin, A94P9N3
- Granted22, Stradbrook Lawn, Blackrock, Dublin, A94Y4X8
- Granted75, Newtown Avenue, Blackrock, Dublin, A94V4Y7
- Granted47, Montpelier Parade, Monkstown, Co.Dublin, A94E3F6 (A protected structure)
- Commenced2, Shandon Park, Monkstown, Blackrock, Dublin, A94F384
- WithdrawnMontpelier Cottage, Montpelier Lane, Blackrock, Dublin, A94P7X3
- Commenced4, Trafalgar Lane, Monkstown, Dublin, A94FF60
- Granted8, Stradbrook Lawn, Blackrock, Dublin, A94YF30
- Granted12, Maretimo Road, Blackrock, Dublin, A94V0F2
- Appeal decided2, Ardenza Terrace, Monkstown, Blackrock, Dublin, A94Y6F3
- Appeal decided19, Eaton Square, Monkstown, Dublin, A94V674
- GrantedBlackrock Village, Co. Dublin
- Commenced12, Maretimo Road, Seapoint, Blackrock, Dublin, A94V0F2
- Granted8, Maretimo Terrace, Newtown Avenue, Blackrock, Dublin, A94K2H2
- Granted22, Temple Park Avenue, Blackrock, Dublin, A94C9P3
- RefusedThe Coach Houses Site, Seapoint Avenue, Blackrock, Co. Dublin with driveway works in the curtilage of the Protected Structure Osborne House, Seapoint Avenue, Blackrock, Co. Dublin
- Granted57, Monkstown Road, Monkstown, Co Dublin, A94PX26
- Commenced29, Eaton Square, Blackrock, Dublin, A94VX22
- Commenced30, Belgrave Square South, Monkstown, Dublin, A94RT63
- Granted1, Stradbrook Gardens, Stradbrook Road, Blackrock, Dublin, A94A3H5
- Commenced3, Stradbrook Grove, Blackrock, Co. Dublin, A94E2P4
- Granted7 Brooklawn Avenue, Blackrock, Dublin, A94VK20
- Granted4, Stradbrook Grove, Blackrock, Co. Dublin
- Refused30, Belgrave Square South, Monkstown, Co. Dublin, A94RT63
- Granted37 St. Vincent's Park, Blackrock, Co Dublin, A94PX61
- Appeal decidedBlackrock House (a protected structure RPS No. 234), 28 Newtown Avenue, Blackrock, Co. Dublin and also Maretimo Gardens East
- GrantedNo. 2 Ardenza Terrace, Seapoint, Monkstown, Co. Dublin A94 Y6F3 - a Protected Structure
- Grantedsite to rear of Fairhaven, Blackrock House Lodge, Newtown Avenue, Blackrock, Co. Dublin
- Granted32 Temple Park Avenue, Monkstown, Blackrock, Co. Dublin, A94 RP82
- Refused1 Craigmore Gardens, Blackrock, Co. Dublin, A96 X4H9
- Granted5 Trafalgar Terrace, Monkstown, Co. Dublin, A94 W299 (Protected Structure)
- Commenced78 Temple Road, Blackrock, Co. Dublin
- Commenced14 Shandon Park, Monkstown, Co. Dublin
- GrantedNewtownpark Avenue, Blackrock, Co. Dublin
- Granted13 Monkstown Road, Co. Dublin, A94 X0D0, which is within the Montpelier Place Architectural Conservation Area
- GrantedNo. 65 Newtown Avenue, Blackrock, Co. Dublin
- Commenced18, Stradbrook Park, Blackrock, Co.Dublin, A94W9Y7
- GrantedKarnak, Stradbrook Road, Blackrock, Co. Dublin
- Granted3 Stradbrook Gardens, Blackrock, Co. Dublin A94A7K8
- Commenced18, Monkstown Road, Monkstown, Co. Dublin
- Commenced19 Stradbrook Park, Blackrock, Co. Dublin
- Granted9 Brighton Vale, Monkstown, Co. Dublin, A Protected Structure
- Awaiting decision3.9 ha at ‘St. Teresa’s House’ (A Protected Structure) and ‘St. Teresa’s Lodge’ (A Protected Structure) Temple Hill, Monkstown, Blackrock, Co. Dublin
- Granted8 Alma Road, Seapoint, Monkstown, Co. Dublin, A94 T6R7
- Appeal decided4 Belgrave Square North, Monkstown, Blackrock, Co. Dublin (curtilage of protected structure)
- GrantedShandon Cottage, Montpelier Parade, Monkstown Road, Monkstown, Co. Dublin, A94 C8K5
- Commenced19, Newtown Villas, Blackrock, Co. Dublin, A94K3V2
- Granted32, Temple Park Avenue, Blackrock, Co Dublin
- Appeal decidedBalnootra, No. 19 Alma Road, Monkstown, Co. Dublin which is a Protected Structure
- Appeal decidedc.0.49 ha site on the former Europa Garage Site, Newtown Avenue, Blackrock, Co Dublin
- Granted92, Temple Road, Blackrock, Dublin, A94X5N9
Homes nearby
- For sale1 Temple Hill, Blackrock, Co. Dublin, A94 NC42
- For sale1 Montpelier Lane, Monkstown, Co. Dublin, A94 Y67T
- For sale1 Eaton Place, Monkstown, Co. Dublin, A94 D893
- For sale6 Greenville Road, Blackrock, Co. Dublin, A94 WA09
- For sale1 Seapoint Manor, 4 Seapoint Avenue, Blackrock, Co. Dublin, A94 C3H5
- For sale3 The Courtyard, Newtown Avenue, Blackrock, Co. Dublin, A94 X4H1
Development land nearby
From Buildable, our sister site for development land in Dublin.
- Permission running out · 91 homes granted 19 Jul 2023, expires 15 Nov 2026 — Newtown Avenue, Blackrock (0.4 km)
- Permission expired · 298 homes granted 25 Aug 2020, expires 25 Aug 2025 — Dalguise House . Monkstown Road (0.8 km)
- Council selling land — 41 Newtown Avenue, Coolock Industrial Estate, Dublin 17 (0.5 km)
- Residential land off Alma Court, Alma Road (0.1 km)
- Residential land off Monkstown Road, Blackrock (0.2 km)
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
- Architectural Conservation Area · 3
- NIAH-recorded building · 2
- Record of Protected Structures · 33
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/0418/WEB is a planning application to Dún Laoghaire-Rathdown County Council for proposed single story, flat roof extension to rear of existing property. Interna, received on 24 Jul 2025; permission was granted on 15 Sept 2025.