12 WIMBORNE AVENUE, CHISLEHURST, BR7 6RQ

1. 14 Aug 2026

   Received by Bromley

2. 17 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 12 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Bromley took a median of 57 days over the applications it decided in the last year.

This application is with Bromley 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.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 12 WIMBORNE AVENUE, CHISLEHURST, BR7 6RQ

  25/05041/HPA Submitted 28 Oct 2025 0m away

  Two storey front extension, increase in ridge height, new front porch, part one/two storey rear extension, with rear access steps and elevational alterations

  Granted Householder Extension Roofing 15 docs
  Small domestic

• 5 WIMBORNE AVENUE, CHISLEHURST, BR7 6RQ

  26/03019/HPA Submitted 17 Jul 2026 0m away

  78% historically approved · decision due ~21 Sep

  Demolition of existing rear extension and construction of part one/two storey front, side and rear extensions, front porch, garage conversion to habitable space, loft conversion with raised ridge height, rear dormer, front and crown rooflights, and elevational alterations.

  Awaiting decision Householder Extension Loft or dormer +2 13 docs
  Small domestic

• 26 Wimborne Avenue, Chislehurst, BR7 6RQ

  24/03849/FULL6 Submitted 15 Oct 2024 0m away

  Demolition of garage and conservatory single storey side/rear extension with heat pump to side roof line extension front roof lights and elevational changes.

  Granted Householder Extension Loft or dormer +1 14 docs
  Small domestic

• 12 WIMBORNE AVENUE, CHISLEHURST, BR7 6RQ

  26/00836/HPA Submitted 3 Mar 2026 0m away

  Part one/two storey rear extension with rear patio/steps, two storey front extensions with front canopy, loft conversion to include increase in ridge height, front rooflights and rear dormer and elevational alterations.

  Granted Householder Extension Loft or dormer +1 14 docs
  Domestic

• 16 WIMBORNE AVENUE, CHISLEHURST, BR7 6RQ

  26/01379/HPA Submitted 7 Apr 2026 0m away

  Demolition of existing garage, removal of chimney and construction of part one/two storey side and rear extensions and front porch

  Granted Householder Extension Demolition 7 docs
  Small domestic

• 18 Wimborne Avenue, Chislehurst, BR7 6RQ

  21/02891/PLUD Submitted 10 Jun 2021 51m away

  Construction of a single storey detached building to the rear garden to accommodate home office facilityLAWFUL DEVELOPMENT CERTIFICATE (PROPOSED)

  Decided Lawful development 6 docs
  Small domestic

• 26/02192/HPA Granted

  Foxwood House, Norsted Lane, Pratts Bottom, Orpington, BR6 7PQ

  Erection of a single-storey outbuilding to rear garden for incidental use as a home gym, with associated hardstanding, landscaping and drainage works.

  1 Jun 2026 Householder
• 26/02752/HPA Granted

  5 EMBER CLOSE, PETTS WOOD, ORPINGTON, BR5 1AP

  Part one/two storey side and rear extension incorporating garage/store and elevational alterations

  8 Jul 2026 Householder
• 26/02702/HPA Granted

  16 OAKFIELD GARDENS, BECKENHAM, BR3 3AZ

  Retention of a Hip to Gable rear roof dormer extension with the addition of two roof lights to the front roof slope.

  3 Jul 2026 Householder
• 26/02663/HPA Granted

  72 SUNDRIDGE AVENUE, BROMLEY, CHISLEHURST, BR7 5LU

  Raised decking area with planters, steps and single storey garden room at rear

  2 Jul 2026 Householder
• 26/02482/HPA Granted

  CHESTNUTS, 15B SANDY RIDGE, CHISLEHURST, BR7 5DP

  Loft conversion comprising front and rear dormers and rooflights to front.

  19 Jun 2026 Householder