© OpenStreetMapD24A/0234Granted86, Trees Road Lower, Mount Merrion, Blackrock, Dublin, A94V2A0Two storey with attic dormer, 4 bedroom detached dwelling incorporatingDecision record indexedDecision31 May 2024View record
© OpenStreetMapD26A/0019/WEBGranted57, South Avenue, Mount Merrion, Stillorgan, Co. Dublin, A94A7P1A) demolition of existing (single storey) garage/kitchen extension to side andDecision record indexedDecision11 March 2026View record
© OpenStreetMapD26A/0159/WEBGranted46, South Avenue, Mount Merrion, Co. Dublin, A94W9D8Full planning permission for the demolition of the existing single-story side gDecision record indexedDecision23 April 2026View record
© OpenStreetMapD21B/0691Granted44, South Avenue, Mount Merrion, Dublin,Permission is being sought for alterationsDecision record indexedDecision18 February 2022View record
© OpenStreetMapD21B/0045Granted53 South Avenue, Mount Merrion, Co. Dublin, A94 E6W4Permission for development. The development will consist of:Decision record indexedDecision07 April 2021View record
© OpenStreetMapD24A/0131Granted76, Trees Road Lower, Mount Merrion, Blackrock, Dublin, A94Y7A4A) Demolition of the existing rear extension and side garage. B) TheDecision record indexedDecision29 April 2024View record
© OpenStreetMapD22A/0956Granted67, South Avenue, Mount Merrion, Dublin, A94 E2Y9Permission sought for demolition of existing garden screen wall, side wall of utDecision record indexedDecision01 February 2023View record
© OpenStreetMapD20A/0623Granted90, Trees Road Upper, Mount Merrion, Blackrock, Co Dublin, A94P9X0Permission for developmentDecision record indexedDecision29 October 2020View record
© OpenStreetMapD24B/0345/WEBGranted48, Thornhill Oaks, Mount Merrion, Co. Dublin, A94 K0E7Permission is sought for The conversion of existing attic space to new bedroom aDecision record indexedDecision19 September 2024View record
© OpenStreetMapD21A/0538Granted39 Clonmore Road, Mount Merrion, Co. DublinPermission for development. The development will consist ofDecision record indexedDecision17 December 2021View record
© OpenStreetMapD26A/0154/WEBGranted92, Trees Road Upper, Mount Merrion, Dublin, A94V2D5Permission and retention permission for 01) Bay window extension with a pitchedDecision record indexedDecision16 April 2026View record
© OpenStreetMapD21A/1152Granted57 Trees Road Upper, Mount Merrion, Blackrock, County Dublin (A94 F8K7)Permission for the following: a) Widening of the existing vehicular entranceDecision record indexedDecision22 February 2022View record
© OpenStreetMapD19B/0472Granted47 South Avenue, Mount Merrion, Co DublinPermission for conversion of garage to breakfast room6 conditions indexedDecision15 January 2020View record
© OpenStreetMapD25A/0862/WEBGrantedThornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Co. Dublin, and Thornhill House (a Protected Structure) A94W7C5Oak View Property Developments Limited, intend to apply for Retention PermissionDecision record indexedDecision14 January 2026View record
© OpenStreetMapD24B/0425/WEBGrantedThornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94W7C5Oak View Property Developments Limited, intend to apply for Retention PermissioDecision record indexedDecision02 December 2024View record
© OpenStreetMapD21A/0161RefusedSite of c. 1.39 ha, Thornhill House, Cherry Garth, Mount Merrion, Blackrock, Co.Dublin A Protected Structure (RPS No. 936)Permission for development. The proposed development will consist ofGrounds not yet categorisedDecision22 April 2021View record
© OpenStreetMapD20A/0432RefusedSite of c. 1.39 ha, Thornhill House, CherryGarth, Mount Merrion, Blackrock, Co. DublinPermission for development. The proposed development will consist ofGrounds not yet categorisedDecision14 August 2020View record
© OpenStreetMapD20A/0057RefusedAt a site of c.1.39ha, Thornhill House, Cherry Garth, Mount Merrion, Blackrock, Co. Dublin (Protected Structure Ref. No. 936)Permission for development. The proposed development will consist ofGrounds not yet categorisedDecision18 March 2020View record
© OpenStreetMapD26A/0295RefusedRear 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),Grounds not yet categorisedDecision10 June 2026View record
© OpenStreetMapD20A/0453Granted77 South Avenue, Mount Merrion, Blackrock, County DublinPermission is sought for development consisting of first floorDecision record indexedDecision29 September 2020View record
© OpenStreetMapD22B/0156Granted77 South Avenue, Mount Merrion, Blackrock, County DublinRetention permission is sought for development consisting ofDecision record indexedDecision17 May 2022View record
© OpenStreetMapD20A/0812Granted77 South Avenue, Mount Merrion, Blackrock, County DublinPermission is sought for development consistng ofDecision record indexedDecision07 January 2021View record
© OpenStreetMapD26B/0071/WEBGranted49 Thornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94Y8X5The development consists of the following: Conversion of existing attic space toDecision record indexedDecision31 March 2026View record
© OpenStreetMapD20A/0434Granted67 Trees Rd Upper, Mount Merrion, Blackrock, Co. Dublin A94 E9WPermission is sought for the extension. The proposed developmentDecision record indexedDecision20 October 2020View record
© OpenStreetMapD20B/0221Granted69 Trees Road Upper, Mount Merrion, Co. DublinPermission sought for proposed front single storeyDecision record indexedDecision01 April 2021View record
© OpenStreetMapD21B/0017GrantedGoretti, 8, Trees Avenue, Stillorgan, Co DublinPermission is sought for partiallyDecision record indexedDecision16 March 2021View record
© OpenStreetMapD25A/0536/WEBGranted66, Dunaree, South Avenue, Mount Merrion, Co Dublin, A94 Y4C9Single storey rear extension, alterations to the front façade, Velux type of winDecision record indexedDecision22 August 2025View record
© OpenStreetMapD25B/0485/WEBGranted35, Cedarmount Road, Stillorgan, Blackrock, Dublin, A94T8X2Front porch extension with new side-facing window, a single-storey flat roof reaDecision record indexedDecision17 October 2025View record
© OpenStreetMapD24A/0059RefusedSite at Thornhill Oaks, Mount Merrion, Blackrock, Co DublinRedesign of the permitted no. 40 Thornhill Oaks (D20A/0432, ABP308150-20) toGrounds not yet categorisedDecision25 March 2024View record
© OpenStreetMapD25B/0440/WEBGranted47, Cedarmount Road, Mount Merrion, Dublin, A94H5P8Planning Permission is sought for: Refurbishment of the existing house, with a nDecision record indexedDecision12 September 2025View record
© OpenStreetMapD26B/0242/WEBGranted81, South Avenue, Mount Merrion, Blackrock, Co. Dublin, A94H1K0The development will consist of (a) first floor side extension over existing groDecision record indexedDecision12 June 2026View record
© OpenStreetMapD21A/0541Granted81, South Avenue, Mount Merrion, Blackrock, Co DublinPermission is sought for the conversionDecision record indexedDecision04 August 2021View record
© OpenStreetMapD23A/0185Refused43, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94PF10Permission is sought for the subdivision of the existing property of (0.054 hectGrounds not yet categorisedDecision15 May 2023View record
© OpenStreetMapD24A/0413Granted96, Trees Road Upper, Mount Merrion, Blackrock, Dublin, A94X7H9Permission for alterations and additions to an existingDecision record indexedDecision01 August 2024View record
© OpenStreetMapD21A/0233Granted27 Clonmore Road, Mount Merrion, Blackrock, County Dublin (A94 C1P3)Permission for the following, including all associated site-works:Decision record indexedDecision28 July 2021View record
© OpenStreetMapD21A/0635Granted7, Thornhill Road, Mount Merrion, Blackrock, County Dublin, A94D1WSThe development will consist ofDecision record indexedDecision27 August 2021View record
© OpenStreetMapD24B/0152Granted42, Clonmore Road, Mount Merrion, Blackrock, Dublin, A94V2P0Permission for: 1) Conversion of existing hip roof to gable roof. 2) Proposed frDecision record indexedDecision31 May 2024View record
© OpenStreetMapD22A/0998GrantedCheriton, 44 Cherrygarth, Mount Merrion, Blackrock, Co Dublin, A94A6P6Permission for a single storey extension to the front and side including the conDecision record indexedDecision14 February 2023View record
© OpenStreetMapD21A/1148GrantedBrandon, 31 Trees Road Lower, Mount Merrion, Blackrock, Co. Dublin, A94 X6Y7Permission for development. The propsoed development will consist of a)Decision record indexedDecision18 February 2022View record
© OpenStreetMapD23B/0601Granted23, Clonmore Road, Mount Merrion, Blackrock, Dublin, A94A0V5Permission for construction of a dormer window in the main roof to the rear of tDecision record indexedDecision22 February 2024View record
© OpenStreetMapD25B/0739/WEBGranted56, Trees Road Lower, Mount Merrion, Dublin, A94X9X5A) removal of existing chimney to side and existing extensions to side and rearDecision record indexedDecision24 February 2026View record
© OpenStreetMapD24B/0520/WEBGranted29, Trees Road Lower, Mount Merrion, Blackrock, Dublin, A94P2C6Planning permission for development consisting of new single storey extension toDecision record indexedDecision04 February 2025View record
© OpenStreetMapD23A/0730Granted29, Trees Road, Mount Merrion, Blackrock, Dublin, A94P2C6For development consisting of development works to 29 Trees Road(formerly knownDecision record indexedDecision14 March 2024View record
© OpenStreetMapD24B/0421/WEBGranted29, South Avenue, Mount Merrion, Blackrock, Co. Dublin, A94R8D4Planning Permission for Attic conversion to convert and extended ridgeline fromDecision record indexedDecision25 November 2024View record
© OpenStreetMapD20B/0358Granted17, Thornhill Road, Mount Merrion, Dublin, A94EOW6Permission for development at this siteDecision record indexedDecision22 March 2021View record
© OpenStreetMapD22B/0189Granted23, Cedarmount Road, Mount Merrion, County Dublin, A94P9K7Permission for an extension and refurbishmentDecision record indexedDecision30 June 2022View record
© OpenStreetMapD20A/0445Granted57 Cedarmount Road, Mount Merrion, County Dublin A94 X2F9Permission for works. The development will consist ofDecision record indexedDecision30 September 2020View record
© OpenStreetMapD19A/0753Granted57, Cedarmount Road, Mount Merrion, Co. Dublin, A94 X2F9Permission for an extension and refurbishment. The development will consist of6 conditions indexedDecision02 January 2020View record
© OpenStreetMapD25A/0591/WEBGranted15, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94H6N6Widening of side pedestrian gate by 300mm, widening of entrance driveway to 3200Decision record indexedDecision16 September 2025View record
© OpenStreetMapD20A/0974Granted60, Cedarmount Road, Mount Merrion, Co DublinPermission for an extension andDecision record indexedDecision22 February 2021View record