GrantedExtensionDecided 25 June 2026

43, Ashton Park, Monkstown, Co. Dublin, A94F5N8

Demolition of side and rear structures and construction of a part single, part double-storey extension in Monkstown.

D26A/0338/WEB · Dun Laoghaire Rathdown County Council · Lodged 1 May 2026

Reference: D26A/0338/WEB
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 1 May 2026

Summary

AI-generated

The development includes the demolition of a first-floor side structure and rear shed, followed by the construction of a part single, part double-storey side and rear extension, a new garage, and an attic conversion with a rear dormer.

Extensionextensiondemolitionattic conversiondormer

Floor area: 126 m²

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

Permission is sought for the demolition of first floor side structure (approx. 8sqm) and associated roof, the demolition of rear shed (approx. 7sqm), the construction of a part single, part double storey extension to the side and rear with part pitched, part flat roof (total floor area of ground and first floor extensions approx. 126sqm) and the construction of 15sqm garage accessed from front driveway. The development will also include the conversion of the attic together with the construction of an associated dormer structure to the rear roof (west) with window and associated rooflight to rear of roof, externally insulating the retained house (render and brick slip finish), alterations to internal layouts, demolition of rear chimney stack, additional window opes, widening existing gateposts and changes to selected existing window opes, proposed rooflights and all associated site 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
Address	Date	Price	Distance
43 Ashton Park, Monkstown, Blackrock	Jan 2026	€1,200,000	5 m
11 Brook Court, Monkstown, Dublin	Oct 2025	€906,027	37 m
25 Windsor Park, Monkstown, Dublin	Oct 2025	€845,000	63 m
76 Windsor Dr, Monkstown, Dublin	Feb 2025	€870,000	109 m
71 Windsor Dr, Blackrock, Dublin	Dec 2025	€880,000	132 m
22 Ashton Park, Monkstown, Co Dublin	Feb 2025	€1,620,000	160 m
28 Richmond Grove, Monkstown, Dublin	Nov 2025	€1,120,000	179 m
38 Monkstown Ave, Blackrock, Dublin	Aug 2025	€1,212,500	199 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

Application received1 May 2026
Decision due25 June 2026
Decision issued25 June 2026

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