Planning Permission Ireland
InvalidExtensionDecided 23 January 2026

77, Johnstown Park, Glenageary, Co. Dublin, A96X4F3

Attic conversion with a roof change and rear dormer window in Glenageary.

D26B/0028/WEB · Dun Laoghaire Rathdown County Council · Lodged 22 January 2026

Reference
D26B/0028/WEB
Authority
Dun Laoghaire Rathdown County Council
Register status
Decided
Type
Permission
Received
22 January 2026

Summary

AI-generated

The development consists of converting the attic to non-habitable accommodation and a bathroom. Works include changing the existing hipped end roof to a gable end roof, constructing a rear dormer window, and adding a side window.

Extensionattic 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

The development will consist of: conversion of attic to non-habitable accommodation and a bathroom, including changing the existing hipped end roof to a gable end roof, construction of a dormer window to the rear and a window to the new side gable wall, all at roof level.

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
82 Johnstown Ave, Dun Laoghaire, DublinMay 2025€637,00063 m
95 Johnstown Ave, Dun Laoghaire, DublinMar 2025€650,00068 m
96 Johnstown Ave, Cabinteely, DublinApr 2026€800,00073 m
31 Johnstown Rd, Dun Laoghaire, DublinJun 2025€450,000102 m
66 Johnstown Grove, Cabinteely, Dublin 18Jan 2026€920,000106 m
105 Johnstown Ave, Dun Laoghaire, Co DublinSept 2025€785,000106 m
101 Granitefield, Dun Laoghaire, DublinAug 2025€657,000110 m
84 Granitefield, Rochestown Ave, Dun LaoghaireNov 2025€685,000134 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 received22 January 2026
  2. Decision due18 March 2026
  3. Decision issued23 January 2026

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