12A Grand Avenue Hassocks West Sussex BN6 8DA

1. 23 Dec 2025

   Received by Mid Sussex

2. 10 Apr 2026

   Decision issued: Approved

3. 12 Aug 2026

   Added to PlanIndex

Mid Sussex granted permission on 10 April 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 28 Grand Avenue Hassocks West Sussex BN6 8DB

  DM/26/1677 Submitted 9 Jul 2026 100 yards away

  Erection of a single storey rear extension extending beyond the rear wall of the original house by 4.30m, to a maximum height of 3.78m and the height of the eaves to 2.58m.

  Granted Extension
  Small domestic

• 3 Wilmington Close Hassocks West Sussex BN6 8QB

  DM/26/1943 Submitted 5 Aug 2026 100 yards away

  Proposed single storey side extension connecting an existing garage.

  Granted Extension
  Small domestic

• 3 Wilmington Close Hassocks West Sussex BN6 8QB

  DM/26/1263 Submitted 20 May 2026 100 yards away

  Single storey side extension connecting an existing garage.

  Granted Extension 10 docs
  Small domestic

• 8 Chancellors Park Hassocks West Sussex BN6 8EZ

  DM/24/2436 Submitted 7 Oct 2024 100 yards away

  Single storey ground floor rear extension and single storey first floor side extension

  Refused Householder Extension 16 docs
  Small domestic

• 36 Grand Avenue Hassocks West Sussex BN6 8DB

  DM/23/0342 Submitted 7 Feb 2023 100 yards away

  Proposed single storey rear extension

  Granted Householder Extension 11 docs
  Small domestic

• 31 Keymer Road Hassocks West Sussex BN6 8AG

  DM/21/2008 Submitted 20 May 2021 150 yards away

  Proposed works are as authorised under DM/17/2611, with works having commenced prior to the planning permission expiry date of 01 May 2021.

  Granted Lawful development 24 docs

• DM/26/2152 Awaiting decision

  Little Hollybush West Hoathly Road East Grinstead West Sussex RH19 4NE

  Two storey side extension, loft conversion, roof extension with 3 dormers to rear and alterations to fenestration

  Received 2 Sep, published by the council 9 Sep 2026 Householder
• DM/26/2027 Awaiting decision

  Timbers Cansiron Lane Ashurst Wood East Grinstead West Sussex RH19 3SE

  Proposed two storey side and rear extension.

  Received 17 Aug, published by the council 19 Aug 2026 Householder
• DM/26/2012 Awaiting decision

  21 Harlands Close Haywards Heath West Sussex RH16 1PS

  Erection of a two-storey rear extension, roof alterations including dormer windows and rooflights, insertion of new windows, removal of the existing chimneys, external rendering of the dwelling, and associated internal alterations. (amended description 07.09.2026)

  Received 13 Aug, published by the council 2 Sep 2026 Householder
• DM/26/1085 Granted

  12 Hurst Gardens Hurstpierpoint Hassocks West Sussex BN6 9ST

  New pitched roof above ground floor projections on principal elevation. Conversion of integrated garage.

  Received 29 Apr, published by the council 31 Jul 2026 Householder
• DM/26/1059 Granted

  73 Folders Lane Burgess Hill West Sussex RH15 0DY

  Proposed first floor extension and extension to the rear and internal alterations to the property.

  Received 28 Apr, published by the council 31 Jul 2026 Householder