Planning Permission Ireland
GrantedExtensionDecided 26 January 2026

5, Lanesville Mews, Lanesville, Dun Laoghaire, Co. Dublin, A96XD83

Rear extension, front porch, and attic conversion with a rear dormer at a house in Dun Laoghaire.

D25B/0670/WEB · Dun Laoghaire Rathdown County Council · Lodged 28 November 2025

Reference
D25B/0670/WEB
Authority
Dun Laoghaire Rathdown County Council
Register status
Decided
Type
Permission
Received
28 November 2025

Summary

AI-generated

The development consists of a new single-storey rear extension, an infill front porch, and a new rear dormer window to facilitate a habitable attic conversion. It also includes new rooflights to the front and internal alterations.

Extensionextensionattic conversiondormer

Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.

Official record

Development description

-new single storey extension to the rear of the existing dwelling with associated rooflight. -new infill front porch and new high level window to the side of the existing dwelling. -new dormer to rear of the main house roof to facilitate a habitable attic conversion. -new rooflights to front slope of existing dwelling. -all associated internal alterations, demolitions, site, landscaping, drainage and ancillary works

Built & sold

What happened next

Beyond the decision: whether this development was built, and what property here has sold for.

Recent sales nearby

within 500 m
Residential Property Price Register sales within 500 metres of this site
AddressDatePriceDistance
19 Monkstown Farm, Dun Laoghaire, DublinJan 2025€312,50041 m
3 Laurel Bank, Lanesville, Dun LaoghaireMar 2025€570,00051 m
25 Monkstown Farm, Monkstown, Co DublinMay 2026€385,00070 m
59 Oliver Plunkett Avenue, Monkstown Farm, Dun LaoghaireMar 2025€449,00070 m
26 Monkstown Farm, Dun Laoghaire, Co DublinFeb 2025€400,00076 m
18 Lanesville, Glenageary, DublinMay 2026€690,000100 m
17 Oliver Plunkett Villas, Monkstown Farm, Monkstown Dun LaoghaireNov 2025€535,000103 m
34 Laurel Bank, Lanesville, Monkstownnot full market priceSept 2025€85,000121 m

Nearby properties, not this site — a guide to local values.

Sources: Building Control Management System (commencement notices) and the Residential Property Price Register, licensed under CC BY 4.0. Records are matched to this application by location and may not be exhaustive; always confirm against the official source before relying on them.

Key dates

Timeline

  1. Application received28 November 2025
  2. Decision due30 January 2026
  3. Decision issued26 January 2026

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