GrantedExtensionDecided 28 August 2020

36 Hyde Park Avenue, off Mount Merrion Avenue, Blackrock, A94 R7F9

Demolition of existing extensions to build a new two-storey side extension and single-storey rear extension in Blackrock.

D20A/0470 · Dun Laoghaire Rathdown County Council · Lodged 7 July 2020

Reference: D20A/0470
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 7 July 2020

Summary

AI-generated

The project involves the refurbishment of the property, including the demolition of existing single-storey extensions. It proposes a new two-storey side extension and a single-storey rear extension, alongside widening the vehicular access to 3 metres.

Extensionrenovationdemolitiondriveway

Storeys: 2

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 for refurbishment and development consisting of the demolition of the existing single storey extensions to the south and west and to build a two storey extension on the side (south) and a new single storey extension to the rear (west). The development will include kitchen, utility room and study on the ground floor and bedroom, dressing area and ensuite bathroom on the first floor. Permission is also sought to widen the existing vehicular access to 3 m.

Built & sold

What happened next

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

Built — construction complete

A commencement notice records works starting on 11 January 2021.

Notified floor area: 191 m²

Recent sales nearby

within 500 m

Residential Property Price Register sales within 500 metres of this site
Address	Date	Price	Distance
36 Hyde Park Ave, Blackrock, Dublin	Jul 2025	€1,495,000	4 m
Charlemont, Avoca Ave, Blackrock	Feb 2026	€3,790,000	78 m
Charlemont, Avoca Ave, Blackrock	May 2026	€2,000,000	78 m
21 The Elms, Mount Merrion Ave, Blackrock	Dec 2025	€660,000	141 m
9 Avoca Grove, Blackrock, Co. Dublinprice excludes VAT	Apr 2026	€1,233,480	143 m
8 Avoca Grove, Grove Avenue, Blackrockprice excludes VAT	Mar 2025	€1,255,507	143 m
17 Hyde Park Avenue, Blackrock, Co Dublin	Dec 2025	€1,600,000	145 m
54 Waltham Terrace, Blackrock, Co. Dublin	May 2025	€2,200,000	192 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 received7 July 2020
Decision issued28 August 2020

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