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The Beeches, Firhouse Road, Knocklyon, Dublin 16, D16N4T8

Grant Permission for Retention

Planning application SD25B/0577W

Dublin - South Dublin County Council

Proposed Development

Amendments to the previously approved application (SD18B/0452) consisting of a reduction of the first floor rear extension.

View the full application file on the council's planning portal →

Application Timeline

  1. Application received

    1 Oct 2025

  2. Decision: Grant Permission for Retention

    21 Nov 2025

  3. Decision due

    25 Nov 2025

  4. Grant issued

    6 Jan 2026

Application Details

Location
The Beeches, Firhouse Road, Knocklyon, Dublin 16, D16N4T8
Applicant
N/A
Application Type
Retention
Planning Authority
South Dublin County Council
Eircode
D16N4T8
Site Area
940 ha

Timeline

Registration Date
1 October 2025
Status
Final Grant
Decision
Grant Permission for Retention
Decision Date
21 November 2025
Grant Date
6 January 2026
Permission Expires
5 January 2031

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.

0m
SD18B/0452Granted1 Nov 2018

Demolition of rear conservatory and chimney and construction of a 2 storey rear extension with flat roof over; alterations to porch door and side windows; window in gable wall at first floor; internal alterations at ground floor and first floor and associated site works.

The Beeches, Firhouse Road, Knocklyon, Dublin 16.

0m
S99B/0490Granted27 Sept 1999

Demolish and remove the existing extension constructed to the east side in order to construct a new single storey extension in the same location together with a new front porch.

The Beeches, Firhouse Road, Knocklyon, Dublin 16.

0m
SD25B/0563WInvalidate Application19 Sept 2025

Amendments to the previously approved application (SD18B/0452) consisting of a reduction of the first floor rear extension.

The Beeches, Firhouse Road, Knocklyon, Dublin 16, D16 N4T8

19m
SD08B/0136Granted4 Mar 2008

Demolition of existing single storey extension to side and front, construction of new single storey extension to front, two storey extension to side and rear, changes to front elevation and solar panels to front roof, all to existing two storey semi-detached house.

"Glenard", Firhouse Road, Dublin 16.

19m
SD05B/0196Granted23 Mar 2005

Demolition of existing porch to front & construction of new porch to front.

"Glenard", Firhouse Road, Dublin 16.

81m
SD08B/0052Granted29 Jan 2008

Extension and alterations of existing garage to form new room with bay window at ground level and a new single storey porch,. 1st floor extension to side for new bedroom and bathroom. New single storey extension to rear with rooflights. Attic conversion with rooflights. New garden walls and driveway entry.

35, Delaford Park, Knocklyon Woods, Templeogue, Dublin 16

85m
SD14B/0064Grant Permission & Grant Retention10 Mar 2014

Permission for single storey extension at front/side including wheelchair ramp at front. Retention permission sought for existing front porch.

25, Delaford Grove, Dublin 16

89m
SD05B/0473Granted14 Jul 2005

Demolish existing side garage and construct an extension

8, Delaford Park, Knocklyon, Dublin 16

89m
SD13B/0055/EPGrant Extension of Duration of Permission1 Jun 2018

Demolition of existing single storey garage to the side (12sq.m); construction of a new two storey extension to the side with a rooflight and construction of a new single storey extension to the rear with rooflights (totalling 62sq.m).

34, Delaford Park, Dublin 16

89m
SD13B/0055Granted8 Mar 2013

Demolition of existing single storey garage to the side (12sq.m.); construction of a new two storey extension to the side with a rooflight and construction of a new single storey extension to the rear with rooflights (totalling 62sq.m.).

34, Delaford Park, Dublin 16

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