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Planning application

18 Onslow Gardens, Belfast, BT6 0AP

Awaiting decision Belfast LA04/2025/1069/F Full

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Proposed single and two storey extension to rear of existing two storey dwelling and over existing previous single storey extension.Works to include new solar panels to rear dwelling roofs, timber effect vertical cladding to rear single storey extension element and raised decking from new rear extension. (Additional Plans & Information)

As published by the council, reference LA04/2025/1069/F

Application record

Reference
LA04/2025/1069/F
Type
Full
Status
Under Consideration
Received
25 Jun 2025
Validated
7 Jul 2025
Ward
Ravenhill
Postcode
BT6 0AP

Timeline

Dates from the published record

  1. 25 Jun 2025

    Received by Belfast

  2. 7 Jul 2025

    Validated

    Checked as complete and ready for consideration.

  3. 6 Aug 2026

    Added to PlanIndex

  4. 24 Aug 2026

    Status changed to Under Consideration

    Previously Site Inspection Complete.

  5. Decision

    Awaiting decision

    Decision expected by 1 September 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Belfast took a median of 99 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice registered in Ballymena

15 applications on PlanIndex · across 5 councils · 91% granted

Trade members see who it is, their full track record, and every application they have filed.

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Documents

Plans, drawings, consultee responses and the officer's report

24 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

What happens while it is decided

The process from here

This application is with Belfast for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 3 Onslow Parade, Belfast, BT6 0AR

    LA04/2026/1003/F Submitted 27 May 2026 73m away

    98% historically approved · decision due ~11 Aug

    Demolition of existing garage / outbuildings. Two storey side extension and single and two storey rear extension and dormer window to rear.

    Awaiting decision Full applications Extension Loft or dormer +2 7 docs

  • 38 Onslow Gardens, Belfast, BT6 0AQ

    LA04/2026/0326/F Submitted 23 Feb 2026 85m away

    Single-storey rear extension, including demolition of the existing single-storey room, removal of the existing kitchen roof, partial demolition of the rear wall (ground floor level) and existing living room window, and formation of a new gable window.

    Granted Full applications Extension Demolition +1 8 docs
    Small domestic

  • 40 Onslow Parade, Belfast, BT6 0AS

    LA04/2023/2721/F Submitted 16 Feb 2023 119m away

    Single storey rear extension to kitchen.

    Granted Full applications Extension 5 docs
    Small domestic

  • 7 HADDINGTON GARDENS BALLYMACONAGHY BELFAST DOWN BT6 0AN

    LA04/2023/2657/F Submitted 10 Feb 2023 141m away

    Single Storey extension to side & rear of dwelling

    Granted Full applications Extension 5 docs
    Small domestic

  • 5 Haddington Gardens, Belfast, BT6 0AN

    LA04/2026/0583/F Submitted 25 Mar 2026 144m away

    Proposed single storey extension to rear of property and level access to front of property.

    Granted Full applications Extension 6 docs
    Small domestic

  • 39 Haddington Gardens, Belfast, BT6 0AN

    LA04/2025/1276/F Submitted 4 Aug 2025 154m away

    Attic conversion with rear dormer

    Granted Full applications Loft or dormer 8 docs

In Belfast

  • LA04/2026/1006/F Granted

    5 Kingsway Gardens, Belfast, BT5 7DQ

    Rear extension and rear dormer. Existing roof to be re-tiled.

    26 May 2026 Full applications
  • LA04/2026/0784/F Granted

    67 Martinez Avenue, Belfast, BT5 5LY

    Retrospective raised patio to the rear of the property

    27 Apr 2026 Full applications
  • LA04/2026/1520/F Awaiting decision

    64 Sandhurst Drive, Belfast, BT9 5AZ

    Demolition of existing garage and addition of two storey side and rear extension, including internal alterations.

    29 Aug 2026 Full applications
  • LA04/2025/2136/F Granted

    Parkdean Care Home 44 Fortwilliam Park, Belfast, BT15 4AS

    Proposed creation of front and rear landscaped garden areas, alterations to ground levels, new garden building, new boundary fencing and landscaping.

    12 Dec 2025 Full applications
  • LA04/2026/1018/F Granted

    5 Diamond Avenue, Belfast, BT10 0HG

    Single-storey front extension and fenestration changes (Amended description)

    28 May 2026 Full applications