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Planning records

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D22A/0517

Planning permission for the demolition of existing single storey garage and kitchen extension to the side (32.5m2), opening of new window at first floor level to existing front elevation and the construction of New 2 storey extension to side, single storey extension to rear and new front porch (total 69 m2), widening of vehicular entrance off the public road, provision of extended hardstand parking area to front and all associated works.

14 Cypress Road, Mount Merrion, Blackrock, County Dublin, A94H3N8Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.0 km away
Granted07 September 2022
D25B/0259/WEB

Conversion of existing attic space comprising of modification of existing roof structure, rais-ing of existing gable c/w dutch hip and window, new access stairs, 2no. roof windows to the front and flat roof dormer to the rear.

11, Cypress Road, Mount Merrion, Blackrock, Dublin, A94F5C7Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.0 km away
Granted02 July 2025
D20B/0375

Retention permission for development at

35, North Avenue, Mount Merrion, Blackrock, Co DublinDun Laoghaire Rathdown County CouncilPermission for Retention0 reasons0 conditions0.1 km away
Granted18 January 2021
D22B/0384

Permission is sought for a two storey extension to rear of the existing house to provide an additional bedroom at first floor.

1A Cypress Road, Mount Merrion, Co. DublinDun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted13 October 2022
D20A/0905

Permission for change of external

2, Cypress Road, Mount Merrion, Co DublinDun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted04 February 2021
D19A/0895

Permission to extend and alter my property, a 2 storey

2 Cypress Road, Mount Merrion, Co. DublinDun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted05 June 2020
D21A/0673

Permission is sought for alteration/extension of an existing two storey detached house, consisting of renovation and part replacement of existing porch, existing bay window, modification to all facades and an extension and renovation of existing dormer windows. Proposed external work includes demolition of a garden wall and proposed pergola, screening to garden, a bin store, a shed and associated site and landscaping works.

7, Mather Road North, Mount Merrion, Blackrock, Co. Dublin, A94T9H6Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted08 September 2021
D21A/0030

Permission. The works will consist of the widening of the

28 Cypress Road, Blackrock, Mount Merrion, Co. DublinDun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted10 March 2021
D22B/0323

Planning permission is sought for the proposed build up of existing gable wall to meet newly extended roof ridge line and conversion of attic space with new dormer window & rooflights to rear, new single storey extension to rear, new lean-to roof over ground floor porch and living room and all associated site works

11 Mather Road North, Mount, Merrion, Co. Dublin.Dun Laoghaire Rathdown County CouncilPermission2 reasons0 conditions0.1 km away
Residential AmenityVisual Amenity
Granted01 September 2022
D21B/0254

The development consists of the construction

44, Calary Road, Mount Merrion, Blackrock, Co Dublin, A94W6F6Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted02 December 2021
D20B/0325

Permission is sought. The development

41, Callary Road, Mount Merrion, Co Dublin, A94X4Y1Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted14 January 2021
D19A/0858

Permission for the following works: A) Demolition of existing garage and boiler shed to side of the house. B) two storey hip roof extension to the side of the house, continuing original ridge line and adding gable element to front and side. C) Attic conversion with flush roof window fitted to front and rear slopes. D) Single storey mono pitch and flat roof extension to the rear of the house. E) High efficiency external wall insulation to remainder walls - retaining some brick detailing. F) revised car park layout and widened entrance gate up to 3.6m width. G) Associated internal modification and site works.

Maryville, 39, Callary Road, Mount Merrion, Co. Dublin, A94 D6K6Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted02 January 2020
D25A/0304/WEB

Intend to apply for full planning permission for the following to the existing two storey fully serviced semi-detached house with attic space & single storey extension to the rear and side and porch to front. Full planning permission is sought for a single storey extension to the side with roof light over, minor alterations to the main front elevation with two new windows and an insulated roof over porch. New rooflights in the main roof front elevation. To the rear changing the glazing on the rear elevation to accommodate the new layout on ground floor, addition of a new dormer and rooflight on the rear main roof. Additional window in the side gable wall over new stair to attic space. Removal of existing chimney Minor changes internally to allow the new design. Widening of the existing vehicle entrance. Maintain connection to public sewerage and surface water and all ancillary site works.

49, North Avenue, Mount Merrion, Blackrock, Dublin, A94A6P9Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted05 June 2025
D22B/0054

Permission is sought for works. The development will consist of: Demolition of existing detached garage and shed (23.8 Sq m); construction of a new covered porch & bay window to front of house (4.1 Sq.m), construction of a two-storey extension to the side of the house (Ground Floor: 18.3 Sq.m, First Floor: 18.3 Sq.m); Construction of part-single, part two-storey extension to rear (Ground Floor: 32.5 Sq.m, First Floor: 21.5 Sq.m); provision of a dormer window to the rear roof slope; provision of an external insulated render system and associated finishes; provision of solar panels to the rear roof slope; provision of rooflights, and associated works.

31 Callary Road, Mount Merrion, Co. Dublin, A94 K3H5Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.1 km away
Granted30 March 2022
D22A/0643

Permission for development. The development will consist of: Demolition of the existing garage to the rear. Construction of a new part single storey and part two storey extension to the side and rear of the existing dwelling including rooflights. Installation of 17.5sqm of solar PV panels on South-East facing front roof. Insulation of flat roof/canopy to front. All associated demolitions, alterations, internal layout changes, drainage and ancillary works.

18 Mather Road North, Mount Merrion, Co. Dublin., A94DK23Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted19 October 2022
D22A/0136

Permission and Retention. The Development will consist

18 Mather Road North, Mount Merrion, Co. Dublin.Dun Laoghaire Rathdown County CouncilPermission0 reasons6 conditions0.2 km away
Granted13 April 2022
D24A/0410/WEB

The development for permission will consist of:• Construction of new dormer to rear of the main house roof to facilitate a habitable attic conversion with a bedroom and a shower room;• Change of roof from hipped to gabled with extended gable wall and rooflight to rear slope;• Alteration / enlargement of existing landing window on side gable wall;• All associated demolitions / alterations, internal layout changes, drainage and ancillary works.The development for retention permission consists of:• Retention of existing widened vehicular entrance / piers to front;

22, Mather Road North, Mount Merrion, Blackrock, Co.Dublin, A94Y528Dun Laoghaire Rathdown County CouncilPermission for Retention0 reasons0 conditions0.2 km away
Granted31 July 2024
D25B/0472

The extension, refurbishment and attic conversion. The development will consist of the partial demolition of external walls and the existing hipped roof to the rear of the property. We intend to construct (a) a ground floor extension to the rear of the property (b) Convert the attic (c) Extend and redesign the roof to the rear of the property (d) add a pitched roof dormer to the front and side of the property and (e) internal reorganisation.

40, Wilson Road, Mount Merrion, Blackrock, Dublin, A94H2Y9Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted16 October 2025
D25B/0314

We intend to apply for planning permission for an extension, refurbishment and and attic conversion. The development will consist of the partial demolition of external walls to the rear and the partial demolition of the existing hipped roof to the rear of the property. We intend to erect (a) a double storey extension to the rear of the property (b) reroof part of the existing house, (c) add dormers to both sides of the roof, and (d) internal reorganisation.

40, Wilson Road, Mount Merrion, County Dublin, A94 H2Y9Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Refused28 July 2025
D25A/0807/WEB

Demolition of the existing garage; construction of a single storey extension to the rear and side; Conversion of attic space; Modification of the existing roof to Mansard type roof with front and rear dormer; Front porch extension; Construction of rooflights to the mansard roof and proposed rear flat roof; Widening the existing entrance to 3.5m.

26, Wilson Road, Mount Merrion, Co. Dublin, A94R8X3Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted16 December 2025
D25B/0199/WEB

Construction of a single storey extension to the rear and side; Conversion of attic space to office/storage; Modification of the existing roof to Mansard type roof with front and rear dormer; Front porch extension; Construct three rooflights to the proposed mansard roof and one rooflight to the proposed rear flat roof; All associated site works.

26, Wilson Road, Mount Merrion, Blackrock, Dublin, A94R8X3Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted05 June 2025
D25B/0120/WEB

Renovations and extensions to the existing two-storey, detached house at 46 Wilson Road, Mount Merrion, Blackrock, Dublin, A94 E8F5, comprising of the demolition and removal of the existing single-storey rear extension, single-storey studio, single-storey shed and existing canopy, 2no. chimneys, 2no. existing rooflights and 2no. existing dormer extensions. The proposed development will comprise 1no. new single-storey extension to the rear, 1no. new dormer to the rear, 2no. new rooflights and the alteration of the roof profile & side walls of the original house, with all associated modifications to the existing house and fenestration including modifications to ground floor and first floor layout and site development including hard and soft landscaping.

46, Wilson Road, Mount Merrion, Blackrock, Dublin, A94E8F5Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted30 April 2025
D23A/0741

Demolition of existing detached two-storey dwelling house. Construction of two-storey detached replacement dwelling with hipped roof, dormer roof level to rear and single storey extension with flat roof to rear. Alteration to existing boundary walls to east. Alterations to existing front boundary including the widening of the existing vehicular access and provision of new electric gates. Proposed detached garden room to rear of property. Associated hard landscaping and all ancillary works.

32, Saint Thomas Road, Mount Merrion, Dublin, A94F973Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted25 January 2024
V/090/23

1 dwelling

32, St Thomas Road, Mount Merrion, Co.Dublin, A94F973Dun Laoghaire Rathdown County CouncilCertificate of Exemption - Part V0 reasons0 conditions0.2 km away
Granted05 December 2023
D26B/0172/WEB

The development will consist of (a) Demolition works to include (i) the 5.4sqm existing single-storey side extension. (ii) the 6.5sqm existing single-storey outbuilding. (iii) removal of the west section of the existing roof to accommodate a new roof. (iv) removal of the roof to the existing rear extension to accommodate a new roof. (v) partial removal of external and internal walls to accommodate the proposed works. (b) the construction of (i) a 11.9sqm two-storey side extension to the west of the existing dwelling. (ii) a 15sqm single-storey rear extension to the south of the existing dwelling. (iii) a new roof connecting the existing and proposed rear extensions. (c) the extension of the existing roof to the west to cover the existing and proposed side extensions, to include a rooflight to the rear pitch. (d) a full refurbishment of the existing dwelling. (e) all associated site works.

12, The Close, Mount Merrion, Blackrock, Co. Dublin, A94DH57Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted07 May 2026
D24A/0470/WEB

The provision of a new side and rear single storey extension, the provision of a new dormer to the rear elevation, revisions to the fenestration to the front side and rear elevation, alterations to the front entrance, the provision of a rear first floor extension to replace the existing balcony, the removal of an existing chimney, the widening of the existing vehicular entrance.

15, Chestnut Road, Mount Merrion, Blackrock, Dublin, A94EK46Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted22 August 2024
D25A/0411/WEB

Demolition of a single-storey conservatory and a boiler house to the rear and side of the existing single-storey dwelling; Demolition of a garden shed within the property boundary; Construction of new single storey extension to the side and rear of the existing house and a garden room to the rear of the site; New widened entrance and gates to the front of the property; All associated landscaping, drainage and site development works.

6, Iris Grove, Mount Merrion, Blackrock, Co. Dublin, A94RH56Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted11 July 2025
D25B/0689/WEB

The conversion of the attic to a bedroom and ensuite. The works will also consist of the construction of two dormer windows, one to the rear for the bedroom and one to the side to allow for access to the attic room and a new velux window.

56, Foster Avenue, Mount Merrion, Co. Dublin, A94N292Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted09 February 2026
D22A/0127

Permission for alterations and extension to a two-storey

62 Fosters Avenue, Mount Merrion, Blackrock, Co. Dublin, A94 W868Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted13 April 2022
D25B/0341

A single storey games room shed.

64, Foster Avenue, Mount Merrion, Blackrock, Dublin, A94E338Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted30 July 2025
D25A/0546/WEB

Conversion of attic into habitable accommodation with dormer roof extensions to the side & rear slopes of the main roof & retention of the widening of the existing vehicular entrance with ancillary site works.

34, Mather Road North, Mount Merrion, Blackrock, Dublin, A94Y319Dun Laoghaire Rathdown County CouncilPermission for Retention0 reasons0 conditions0.2 km away
Granted01 September 2025
D21A/0571

Permission for 4 no. semi-detached 3 storey houses

Site adjacent to, 54 Wilson Road, Mount Merrion, Blackrock, Co Dublin, A94N6C7, and to the rear of, 42, Greenfield Road, Mount Merrion, Blackrock, Co Dublin, A94E3W5Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted14 March 2022
D21A/0623

Permission for 4 no semi-detached 3 storey houses

Site adjacent to 54 Wilson Road, Mount Merrion, Blackrock, Co. Dublin, A94 N6C7Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted14 March 2022
D25A/0790/WEB

Planning permission is sought for a new dormer window in the roof on the front of the house. Retention permission is sought for a widened entrance to the front driveway onto Wilson Road.

29, Wilson Road, Mount Merrion, Dublin, A94K8H2Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted04 December 2025
D22A/0609

Planning permission and retention. Permission is sought for 3 no. new rooflights on the side pitched roofs of the existing house and 1 no. new rooflight on the front pitched roof of the existing house. Retention permission is sought for the existing patio door on the rear elevation of the existing house.

29 Wilson Road, Mount Merrion, Blackrock, Co Dublin A94 K8H2Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted11 November 2022
D21A/0596

The development consists of

13, Callary Road, Mount Merrion, Co Dublin, A94TY36Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted20 August 2021
D21A/0162

Permission for the following works:

13 Callary Road, Mount Merrion, Co. Dublin (A94 TY36)Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Refused21 April 2021
D25B/0046/WEB

The development consists of an attic conversion to habitable status with the provision of a new Mansard Roof, a rear single-storey extension, and all ancillary works necessary to facilitate the development.

39 Wilson Road, Mount Merrion, Blackrock, Co. Dublin, A94P3Y9Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Refused25 March 2025
D23B/0572

Alterations to D23B/0241. A) Extended living space to rear of dwelling with flat roof and rooflight, to eliminate previously refused terrace. B) Change of material finish of 4no. dormer windows from zinc cladding to render finish, C) Change of material finish of new stairwell to side of building, from zinc cladding to render finish and slate roof to match main dwelling. D) Alterations to existing bay window to front of dwelling and all associated site works.

37, Auburn, Saint Thomas' Road, Mount Merrion, Blackrock, Dublin, A94EN83Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted13 February 2024
D23B/0241

A) Removal of existing flat-roof dormer and 2no chimneys to side and rear of existing dwelling, and b) the construction of a two-storey extension above existing lower ground floor level. c) Alterations to existing attic-floor level including new pitched-roof dormer to side, new mansard roof with dormer windows to side and rear, and rooflights. d) raise main ridgeline of roof to match existing high point, e) change of roof material finish from tiles to slates, f) external insulation to entire dwelling, and all associated site works.

Auburn, 37 Saint Thomas Road, Mount Merrion, Blackrock, Dublin, A94EN83Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted11 July 2023
D23B/0458

Extension and alterations to existing dwelling to include: removal of 2 no. chimneys, replace existing roof with new dormer mansard-type roof, sitting area/study, ensuite bedroom with walk-in wardrope, stairs and landing. Changes to dormer window to front (southwest elevation), with the addition of rooflights to side elevations. With minor changes to windows and doors on external elevations. With connection to existing onsite services, and all associated site works.

41, Wilson Road, Blackrock, Dublin, A94P3X6Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted01 December 2023
D20A/0569

Permission to extend the existing property on the site. The proposed development will consist of internal alterations to existing ground and first floor levels, materiality and fenestration reconfigurations, the construction of a single-storey extension the rear, side and front of the existing dwelling and the construction of a single storey garden studio to the rear of the garden along with widening of the existing vehicular entrance, all along with associated landscaping, ancillary and site works.

36, Mather Road North, Mount Merrion, Blackrock, County DublinDun Laoghaire Rathdown County CouncilPermission0 reasons6 conditions0.2 km away
Granted07 January 2021
D20A/0505

Retention Permission to retain flat roof over previously

74 Fosters Avenue, Mt. Merrion, Co. Dublin A94 V303Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted16 February 2021
D20B/0191

Retention of a garden shed at the rear.

43 Greenfield Road, Mount Merrion, Co. DublinDun Laoghaire Rathdown County CouncilPermission for Retention0 reasons0 conditions0.2 km away
Granted21 August 2020
D19A/0940

Retention Permission is sought for retention of alterations and additional alterations to previously granted planning permission, Dun Laoghaire County Council Reference D15A/0657, which granted permission for; Construction of a new single storey extension to the side, a new single storey extension to side and rear, and a new single storey extension to rear of the existing two storey detached house; to externally insulate and re-render the existing house; to re-roof and alter the existing windows and doors and to demolish the existing garage and construct a new garage to be part single storey, and part two storey to the rear and include a home office with associated site works which include widening the vehicular entrance gates, and providing a new pedestrian gate. The proposed alterations to this permission are: A. Reduction of 17.7 sq.m in the overall area of the proposed single storey extension to the rear, adjusted floor level, and altered fenestration to this extension; B. Reduction of 23.2 sq.m. of the area of the proposed garage. The garage is now proposed as single storey, including omission of the proposed home office, and omission of the boiler room. It is also proposed to reduce the overall height of the garage, and to use a concrete roof tile to match the existing house roof, rather than the slate roof previously proposed; C. Omission of the proposed single storey extension to the side and rear, a reduction in proposed area of 2.4 sq.m.; D. Increased footprint of the single storey side extension by 2.3 sq.m., to allow for construction build ups; E. It is now proposed to repair the existing flat roof to the rear return, rather than replacing it with a new pitched roof. This reduces the overall height of the rear return; F. It is proposed to omit the replacement render to the original existing house; G. It is proposed to relocate the outdoor terrace area at the rear of the house to the west of the site; H. Minor internal alterations to the internal layout of the house and minor alterations to windows to rear elevation; J. Alteration of surface water drainage to proposed new soakaway in rear yard.

Karinya, North Avenue, Mount Merrion, Co DublinDun Laoghaire Rathdown County CouncilPermission for Retention0 reasons0 conditions0.2 km away
Granted06 February 2020
D20A/0458

Planning application is sought. The development will consist of: (i) demolition of the existing shed; (ii) the construction of: a two storey flat roof extension with single storey covered patio area to the rear; the two storey pitched roof extension to the side (west); the flat roof ground floor extension to the front creating porch; the dormer window at the attic floor facing rear garden (iii) the construction of a flat roof shed to the rear garden; (iv) widening of the existing vehicular entrance to 3.5m width; (v) alterations to all elevations and all associated ancillary works necessary to facilitate the development including SUDS drainage, rooflights, site works, boundary treatments and landscaping.

7 Chestnut Road, Mount Merrion, Blackrock, Co. Dublin, A94V622Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted13 October 2020
D24A/0080

The demolition of the rear outbuilding and construction of a 2-storey extension to the side; 36sqm to the ground floor, 20sqm to first-floor. Hipped roof to match existing to first-floor extension, removal of chimney stack to the side and mono-pitched zinc roof to rear of ground floor extension.

No 7 Chestnut Road, Mount Merrion, Co. DublinDun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted03 May 2024
D22A/0141

Permission for the construction of 4 no. 2.5 storey

Northwest Corner of Wilson Road and North Avenue, Mount Merrion, Co. DublinDun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted20 April 2022
D25A/0737/WEB

New 2 storey extension to side, single storey extension to rear, conversion of attic area, with dormer window to front, re-location of vehicular access (south-east on North Avenue) internal modifications and associated site works.

Kildara, 44A Foster's Avenue, Mount Merrion, Dublin, A94W963Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Granted17 November 2025
D25A/0463/WEB

New 2 storey extension to side, single storey extension to rear, conversion of attic area, with dormer window to front, re-location of vehicular access (south-east on North Avenue) internal modifications and associated site works.

Kildara, 44A Foster's Avenue, Mount Merrion, Blackrock, Dublin, A94W963Dun Laoghaire Rathdown County CouncilPermission0 reasons0 conditions0.2 km away
Refused01 August 2025
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