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45 Lansdowne Park, Knocklyon, Dublin 16, D16DT38

Request Additional Information

Planning application SD26B/0379W

Dublin - South Dublin County Council

Proposed Development

2 flat roof dormers to the front existing roof and to the rear existing roof and alterations to existing elevations; front dormer to include roof-mounted solar photovoltaic panels, and all associated works.

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

Application Timeline

  1. Application received

    18 Aug 2026

  2. Further information requested

    9 Oct 2026

  3. Decision: Request Additional Information

    9 Oct 2026

  4. Decision due

    12 Oct 2026

Application Details

Location
45 Lansdowne Park, Knocklyon, Dublin 16, D16DT38
Applicant
N/A
Application Type
Permission
Planning Authority
South Dublin County Council
Eircode
D16DT38
Site Area
430 ha
Floor Area
34 sq m

Timeline

Registration Date
18 August 2026
Status
AI Requested
Decision
Request Additional Information
Decision Date
9 October 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.

29m
SD25B/0037WGranted31 Jan 2025

The development will consist of: 1. Demolition of the existing rear garden single storey conservatory and shed. 2. Construction of a single storey, flat roof rear extension, to consist of a dining and lounge area. 3. Construction of a new extended front entrance porch with tiled lean-to roof above. 4. Conversion of the attic space incorporating a new flat roof, rear facing dormer window, and a new front facing roof light, the attic is to be used as a home office and W.C. 5. Proposed increased width of existing vehicular access exiting on to Lansdowne Park, Knocklyon, Dublin 16, including the addition of hard surface to the existing front drive area. 6. General upgrade of the existing house at all floor levels to accommodate the proposed works including lowering the front living room window sill. 7. All drainage, structural and associated site works.

62, Lansdowne Park, Knocklyon, D16RX61

35m
SD06A/0253Refused6 Apr 2006

Two storey detached dwelling incorporating single storey sections to front and rear, velux window, new vehicular entrance fronting onto Knocklyon Road and associated site works.

72, Landsdowne Park, Knocklyon, Dublin 16.

74m
S02B/0126Granted8 Mar 2002

Attic conversion.

61 Knocklyon Road, Dublin 16.

74m
SD04B/0402Granted27 Jul 2004

Conservatory to the rear.

61, Knocklyon Road, Dublin 16

78m
SD25B/0078WGranted19 Feb 2025

Replace existing hip roof over entrance door with flat roof construction, remove existing chimneys from main roof, construct 2no. dormer extensions to main roof (1no. either side) and all associated site works.

59, Knocklyon Road, Dublin 16, D16 PC79

80m
SD19B/0342Granted29 Aug 2019

Demolition of existing garage; construction of single storey extension to rear (east) and single storey porch to side (south) - total 57sq.m; conversion of existing attic to form a first floor to include a dormer window to the south and revisions to existing elevational treatment of the dwelling.

57, Knocklyon Road, Knocklyon, Dublin 16

80m
SD20B/0061Granted26 Feb 2020

Revisions to previously approved Reg. Ref. SD19B/0342 single storey extension design to rear (east); revising the floor plan and increasing the area by 6sq.m (total extension area of 63sq.m) with consequent revisions to east and south elevations.

57, Knocklyon Road, Knocklyon, Dublin 16

81m
SD25B/0418WGranted27 Jun 2025

Amendments to the previously approved application (SD24B/0302) consisting of an extension of the single storey extension to the rear of existing dwelling, change of porch roof from hip to a gable, an addition of 1 No. dormer on the north elevation and 1No. rooflight with alterations to existing approved dormer roofs, internal alterations and associated site works

60, Knocklyon Road, Templeogue, Dublin, D16 XE42

81m
SD25B/0403WInvalidate Application18 Jun 2025

Amendments to the previously approved application (SD24B/0302) consisting of an extension of the single storey extension to the rear of existing dwelling, change of porch roof from hip to a gable, an addition of 1 No. dormer and 1 No. rooflight with alterations to existing approved dormer roofs, internal alterations and associated site works.

60, Knocklyon Road, Templeogue, Dublin, D16 XE42

81m
SD22B/0300Granted27 Jun 2022

Single storey extension to the side of the house and two storey extension to the rear, including the provision of 5 No: dormer windows in the existing pitched roof, at 60 Knocklyon Road, Dublin 16

60 Knocklyon Road, Dublin 16.

The submission window has closed

A decision issued on this application, so observations can no longer be made. Anyone who made a submission during the five-week window can appeal to An Coimisiún Pleanála within four weeks of the decision — until Friday 6 November 2026 — for a fee of €220.

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