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48 Thornhill Oaks, Mount Merrion, Co. Dublin

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What's planned, stalled or derelict around it, and what to ask.

Quiet street: 1 application open for comments.

Planning around this home

Distance
Time

Within 500 m of this home · the last 12 months

100%extensions approvedof 16 decided
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28 of 28 planning applications within 500 m in the last year · sorted by received
DescriptionDetails
Open30 Sept 2026D26B/0522/WEB
DLR
11 Trees Avenue, Mount Merrion, Blackrock, Co. Dublin, A94 W2A8Permission sought for: 1) Demolition of the existing two storey extension over g…—17 days left
4 Nov
267 m
Awaiting decision9 Sept 2026D26B/0490/WEB
DLR
43, Kilmacud Park, Kilmacud, Co. Dublin, A94N9D2The development will consist of will consist of the construction of part single…——367 m
Granted11 Aug 2026D26B/0449/WEB
DLR
8, Woodlands Drive, Stillorgan, Co. Dublin, A94N202The development consists of: The alteration and extension of the existing single…30 Sept 2026—344 m
Granted14 Jul 2026D26B/0401/WEB
DLR
42, Sycamore Road, Mount Merrion, Blackrock, Co. Dublin, A94Y1T0The development will consist of the renovation and extension of existing 2-stor…4 Sept 2026—383 m
Granted13 Jun 2026D26A/0445/WEB
DLR
Auburn, Old Dublin Road, Stillorgan, Dublin, A94HE48Single-storey front porch extension with canopy, widening of existing front vehi…5 Aug 2026—495 m
Granted10 Jun 2026D26A/0433/WEB
DLR
26 Woodlands Avenue, Stillorgan, Co. DublinThe development will consist of: (1) Demolition of existing shed, conservatory…30 Jul 2026—322 m
Withdrawn8 Jun 2026D26A/0421/WEB
DLR
Auburn, Old Dublin Road, Stillorgan, Dublin, A94HE48Single-storey front porch extension with canopy, widening of existing front vehi…10 Jun 2026—495 m
Commenced26 May 2026D26A/0386/WEB
DLR
52, Beaufield Park, Stillorgan, Dublin, A94CX39Alterations to existing planning permission D25A/0068/WEB to include (a) single…17 Jul 2026—368 m
Awaiting decision22 May 2026PC/IC/01/26
DLR
National Mobility Hubs Pilot: Dún Laoghaire-Rathdown, 73 Locations Across the Council's Administrative Area, Dún Laoghaire-Rathdown73 mobility hub sites across the Council's administrative area——497 m
Granted7 May 2026D26A/0346/WEB
DLR
100, The Rise, Mount Merrion, Blackrock, Co. Dublin, A94N7Y31) Demolition to existing Chimney to the rear, 2) Proposed two story extension t…26 Jun 2026—273 m
Commenced30 Apr 2026D26A/0332
DLR
93, South Avenue, Mount Merrion, Co. Dublin, A94F9X6Additions and alterations to detached dwelling, including demolition of’ single…24 Jun 2026—280 m
Withdrawn30 Apr 2026D26A/0327/WEB
DLR
100, The Rise, Mount Merrion, Co Dublin, A94N7Y31) Demolition to existing Chimney to the rear, 2) Proposed two story extension t…6 May 2026—273 m
Granted22 Apr 2026D26B/0242/WEB
DLR
81, South Avenue, Mount Merrion, Blackrock, Co. Dublin, A94H1K0The development will consist of (a) first floor side extension over existing gro…12 Jun 2026—209 m
Appealed16 Apr 2026D26A/0295
DLR
Rear lands No. 33 & No. 35 Clonmore Road, Mount Merrion, Co. DublinFor the demolition of 2 no. garages (one each at Nos. 33 and 35 Clonmore Road),…10 Jun 2026—156 m
Granted1 Apr 2026D26B/0190/WEB
DLR
4 Kilmacud Park, Kilmacud, Co. Dublin, A94R6K7Retention of single-storey pitched roof front porch extension, and retention of…25 May 2026—407 m
Commenced3 Mar 2026D26A/0159/WEB
DLR
46, South Avenue, Mount Merrion, Co. Dublin, A94W9D8Full planning permission for the demolition of the existing single-story side g…23 Apr 2026—128 m
Granted1 Mar 2026D26A/0154/WEB
DLR
92, Trees Road Upper, Mount Merrion, Dublin, A94V2D5Permission and retention permission for 01) Bay window extension with a pitched…16 Apr 2026—190 m
Granted19 Feb 2026D26B/0099/WEB
DLR
38, Stillorgan Road, Blackrock, Dublin, A94A2W2Proposed construction of a single story extension to provide an accessible toile…10 Apr 2026—427 m
Granted6 Feb 2026D26B/0071/WEB
DLR
49 Thornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94Y8X5The development consists of the following: Conversion of existing attic space to…31 Mar 2026—44 m
Granted (cond.)4 Feb 2026D26B/0064/WEB
DLR
40 South Avenue, Mount Merrion, Blackrock, Co. Dublin, A94X5N0Permission is sought for; a) A proposed first floor extension to front, above ex…26 Mar 2026—114 m
Granted16 Jan 2026D26A/0019/WEB
DLR
57, South Avenue, Mount Merrion, Stillorgan, Co. Dublin, A94A7P1a) demolition of existing (single storey) garage/kitchen extension to side and…11 Mar 2026—55 m
Commenced15 Jan 2026D26B/0021/WEB
DLR
Greenways, 128 Trees Road Upper, Mount Merrion, Co. Dublin, A94W8W8The development will consist of removal of existing porch door and relocation o…9 Mar 2026—431 m
Commenced23 Dec 2025D25B/0739/WEB
DLR
56, Trees Road Lower, Mount Merrion, Dublin, A94X9X5a) removal of existing chimney to side and existing extensions to side and rear…24 Feb 2026—112 m
Granted18 Dec 2025D25A/0978
DLR
52, Cedarmount Road, Mount Merrion, Co. Dublin, A94Y8W61) Demolition of outbuildings to rear. 2) Removal of Porch to front to incorpora…17 Feb 2026—329 m
Granted12 Nov 2025D25A/0862/WEB
DLR
Thornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Co. Dublin, and Thornhill House (a Protected Structure) A94W7C5Oak View Property Developments Limited, intend to apply for Retention Permission…14 Jan 2026—3 m
Commenced5 Nov 2025D25B/0625/WEB
DLR
20, Kilmacud Park, Kilmacud, Stillorgan, Co. Dublin, A94A4V2Planning Permission is sought for an attic conversion and dormer window includi…10 Dec 2025—401 m
Commenced21 Sept 2025D25B/0520/WEB
DLR
26A, Lower Kilmacud Road, Stillorgan, County Dublin, A94YP77Proposed alterations to the existing roof profile including the removal of the…10 Nov 2025—306 m
Commenced6 Aug 2025D25A/0617
DLR
27 Redesdale Road, Mount Merrion, Blackrock, Co. Dublin, A94T9W6Planning permission is sought for development comprising (i) demolition of the e…17 Nov 2025—473 m
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    About this home

    48 Thornhill Oaks, Mount Merrion, Co. Dublin in Stillorgan North, Dun Laoghaire-Rathdown is for sale. Within 500 m, Planning Register tracks 842 planning applications: 1 open for comments, 4 awaiting a decision, 691 granted, 95 refused, 2 under appeal, 206 building started. The soonest observation deadline is 4 Nov 2026 on DLR D26B/0522/WEB (11 Trees Avenue, Mount Merrion, Blackrock, Co. Dublin, A94 W2A8).

    More about this address

    The site is zoned R2 — existing residential. It is in the Cherrygarth estate, where 50 planning applications were made in 10 years, 82% of those decided granted. A protected structure is within 100 m, the nearest Thornhill House (5 m); the site itself is not on the record. The nearest named scheme is Thornhill House, 64 homes (64 built), 0 m away.

    Local authority
    Dún Laoghaire-Rathdown County Council
    Location precision
    Rooftop
    Estate
    Cherrygarth
    Protected structures within 100 m
    1 · nearest Thornhill House
    Named schemes within 1.0 km
    Thornhill House · 64 homes +7 more
    Schools within 1.0 km
    Oatlands Primary School, An Edmund Rice School (primary school · 428 pupils, 240 m) +7 more
    Crèche inspected nearby
    Oatlands Pre,After, Montessori, School Age Childcare · inspected 11 Sept 2025 (217 m)
    Source: Residential Property Price Register (PSRA) · fetched 18 Oct 2026, 01:19
    SourceLicenceFetchedLink
    Residential Property Price Register (PSRA)© PSRA, PSI licence18 Oct 2026, 01:19open