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Simmonstown House, 2 Sydenham Road, Ballsbridge, Dublin 4

GRANT RETENTION PERMISSION

Planning application 3469/25

Dublin - Dublin City Council

Proposed Development

Permanent retention of 1) use of house and annexe as bed and breakfast accomodation 2) 3 storey extension to rear of house 3) infill porch to front of house 4) pedestrian and vehicular access gates to rear garden from adjoining laneway/right of way 5) internal alterations and 6) conversion of former garage to annexe accomodation for use in conjuction with main house .

Application Timeline

  1. Application received

    25 Nov 2025

  2. Decision due

    28 Jan 2026

  3. Decision: GRANT RETENTION PERMISSION

    28 Jan 2026

  4. Grant issued

    9 Mar 2026

Application Details

Location
Simmonstown House, 2 Sydenham Road, Ballsbridge, Dublin 4
Applicant
N/A
Application Type
Retention Permission
Planning Authority
Dublin City Council
Site Area
326.12 ha

Timeline

Registration Date
25 November 2025
Status
Decision Notice Issued
Decision
GRANT RETENTION PERMISSION
Decision Date
28 January 2026
Grant Date
9 March 2026

Location

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Planning Applications Nearby

What the council has granted and refused around this site is the best guide to how a similar application will fare.

45m
WEB2018/22APPLICATION DECLARED INVA8 Nov 2022

Planning Permission for The proposed demolition of the existing ground floor rear extension of the existing terrace house and the proposed construction of a new ground floor level, rear extension to provide a laundry room and lounge, with 4 no. rooflights, adaption and extension to existing rear flat roof terrace area, with all associated internal reconfigurations and external works to facilitate the development at 3 Serpentine Avenue, Ballsbridge, Dublin 4. D04 H0C9

3, Serpentine Avenue, Dublin 4

45m
WEB2066/22GRANT PERMISSION25 Nov 2022

Planning Permission for the proposed demolition of the existing ground floor rear extension of the existing terrace house and the proposed construction of a new ground floor level, rear extension to provide a laundry room and lounge, with 4 no. rooflights, adaption and extension to existing rear flat roof terrace area, with all associated internal reconfigurations and external works to facilitate the development at 3 Serpentine Avenue, Ballsbridge, Dublin 4. D04 H0C9.

3, Serpentine Avenue, Ballsbridge, Dublin 4

49m
WEB1102/20SPLIT DECISION(PERMISSION28 Feb 2020

The development will consist of the construction of a 10.3 sq.m extension at first floor to the rear, the provision of 1 no. car parking space in the front garden, and the formation of new vehicle access to Serpentine Avenue including the removal of part of the front boundary plinth wall and railings.

15, Serpentine Avenue, Ballsbridge, Dublin 4 D04 C9YO

58m
WEB2087/23REFUSE RETENTION PERMISSI11 Dec 2023

RETENTION: The development to be retained consists of the provision of two wooden storage units in the patio to the front of the property.

1 Sydenham Road, Ballsbridge, Dublin 4

58m
3702/19APPLICATION DECLARED INVA8 Aug 2019

Permission sought for detached new two storey mews with roof light, external store to rear of private open space with 2 no. bicycle spaces, provide for 6 no. bicycle spaces to rear of main house private open space to replace Granted Permission Ref. 4481/17 for a two car garage and associated car parking spaces to main house at No. 1 Sydenham Road, Dublin 4.

1 Sydenham Road, Ballsbridge, Dublin 4

58m
4142/19REFUSE PERMISSION4 Oct 2019

Permission sought for detached new two storey mews with roof light, external store to rear of private open space with 2 no. bicycle spaces, provide for 6 no. bicycle spaces to rear of main house private open space to replace granted permission ref: 4481/17 for a two car garage and associated car parking spaces to main house.

1 Sydenham Road, Ballsbridge, Dublin 4

58m
2242/21APPLICATION DECLARED INVA18 Feb 2021

Planning permission sought to widen lane access and provide new car parking space to front garden.

1 Sydenham Road, Dublin 4

58m
2325/21REFUSE PERMISSION4 Mar 2021

Permission for a new vehicular access to front garden to provide a new car parking space and to widen side lane access.

1 Sydenham Road, Dublin 4

59m
3886/19APPLICATION DECLARED INVA30 Aug 2019

RETENTION: planning permission to retain and complete alterations to previous approved planning ref 3546/17 for the construction of a detached garage building to a 2 storey mews house.

3, Sydenham Road, Ballsbridge, Dublin 4

59m
4090/19REFUSE PERMISSION27 Sept 2019

RETENTION & PERMISSION: Planning permission and retention planning permission to retain and complete alterations to previous approved Planning Ref 3546/17 for the construction of a detached garage building with a converted attic space with a pitched roof with rooflights within both roof spaces, at 3 Sydenham Road, Ballsbridge, Dublin 4. D04 H5Y9. Planning permission is sought for change of use of the detached garage building with a converted attic space, to a 2 bedroom 2 storey Mews House. The first floor is within the converted attic space. Other works for which planning permission is sought to include (1) An increase of 16m2 floor area at first floor/attic floor level (total first floor/attic floor area = 54m2) (2) The roof shape has been revised from a pitched roof with rooflights within both roof slopes to a pitched roof with dormer windows within the front and rear roof slope. The roof height has been increased by 218mm (3) Connections and all services and (4) All necessary ancillary site development works to facilitate this development. Retention planning permission is sought for works carried out to-date as per approved Planning Ref 3546/17 to include the construction of an increased ground floor area off 6m2, (total ground floor area = 54m2).

3, Sydenham Road, Ballsbridge, Dublin 4

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