3 Onslow Parade, Belfast, BT6 0AR

1. 27 May 2026

   Received by Belfast

2. 16 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 22 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 11 August 2026, 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 106 days over the applications it decided in the last year.

This application is with Belfast for determination, against a statutory target of eight weeks. Over the last year Belfast decided full applications in a median of 132 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 18 Onslow Gardens, Belfast, BT6 0AP

  LA04/2025/1069/F Submitted 25 Jun 2025 100 yards away

  97% historically approved · decision due ~1 Sep

  Demolition works to rear elevation and gable wall and removal of existing rear dormer window. First Floor rear extension including solar panels to rear roofs, timber effect vertical cladding to rear single storey extension, and associated site works. (Amended Proposal Description)

  Awaiting decision Full applications Extension Loft or dormer +2 26 docs
  Small domestic

• 40 Onslow Parade, Belfast, BT6 0AS

  LA04/2023/2721/F Submitted 16 Feb 2023 150 yards away

  Single storey rear extension to kitchen.

  Granted Full applications Extension 5 docs
  Small domestic

• 38 Onslow Gardens, Belfast, BT6 0AQ

  LA04/2026/0326/F Submitted 23 Feb 2026 150 yards 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

• 41 ONSLOW PARADE BALLYMACONAGHY BELFAST DOWN BT6 0AS

  LA04/2023/2415/F Submitted 21 Dec 2022 150 yards away

  Single and two storey extensions to side and rear of existing dwelling.

  Granted Full applications Extension 13 docs
  Domestic

• 5 Haddington Gardens, Belfast, BT6 0AN

  LA04/2026/0583/F Submitted 25 Mar 2026 200 yards away

  Single storey extension to rear of property and level access to front of property.

  Granted Full applications Extension 6 docs
  Small domestic

• 7 HADDINGTON GARDENS BALLYMACONAGHY BELFAST DOWN BT6 0AN

  LA04/2023/2657/F Submitted 10 Feb 2023 200 yards away

  Single Storey extension to side & rear of dwelling

  Granted Full applications Extension 5 docs
  Small domestic

• LA04/2025/1410/F Granted

  40 Sydenham Park, Belfast, BT4 1PW

  2 storey side extension. Widening of driveway

  Received 27 Aug, published by the council 22 Jul 2026 Full applications
• LA04/2025/1117/F Withdrawn

  3 Clara Crescent Upper, Belfast, BT5 5EQ

  Change of use from 4 bed dwelling to 5 bed / 5 person HMO including single storey extension to kitchen

  Received 23 Jun, published by the council 6 Aug 2026 Full applications
• la04/2026/0151/F Granted

  42 Clara Park, Belfast, BT5 6FE

  Demolition of existing single storey rear extensions to make way for a proposed new single storey extension to the rear

  Received 2 Feb, published by the council 22 Jul 2026 Full applications
• LA04/2026/1426/F Granted

  6 North Sperrin, Belfast, BT5 7HU

  Single storey rear and side extension and new rear patio. Demoliton of existing garage.

  Received 11 Aug, published by the council 29 Aug 2026 Full applications
• LA04/2026/1219/F Granted

  96 Rosebery Road, Belfast, BT6 8JF

  Replacement single storey rear extension

  Received 6 Jul, published by the council 22 Jul 2026 Full applications