85 Grand Avenue Hassocks West Sussex BN6 8DG

1. 27 Mar 2026

   Received by Mid Sussex

2. 12 May 2026

   Decision issued: Approved

3. 12 Aug 2026

   Added to PlanIndex

Mid Sussex granted permission on 12 May 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.

• 9 Mackie Avenue Hassocks West Sussex BN6 8NH

  DM/26/0358 Submitted 11 Feb 2026 100 yards away

  Loft conversion including the addition of a flat-roofed rear dormer, two smaller hipped side dormers and the addition of one roof window.

  Granted Lawful development Loft or dormer Windows or glazing 16 docs

• 9 Mackie Avenue Hassocks West Sussex BN6 8NH

  DM/26/0359 Submitted 11 Feb 2026 100 yards away

  Proposed single storey rear extension.

  Granted Householder Extension 22 docs
  Small domestic

• 118 Grand Avenue Hassocks West Sussex BN6 8DG

  DM/21/2393 Submitted 22 Jun 2021 100 yards away

  Erection of single storey rear extension extending beyond the rear wall of the original house by 5.4 meters, to a maximum height of 3 metres and the height of the eaves of 2.4 metres.

  Granted Prior approval Extension 7 docs
  Small domestic

• 11 Adastra Avenue Hassocks West Sussex BN6 8DP

  DM/26/2412 Submitted 29 Sep 2026 150 yards away

  94% historically approved · decision due ~27 Nov

  Proposed rear extension and loft conversion

  Awaiting decision Extension Loft or dormer

• 9 Adastra Avenue Hassocks West Sussex BN6 8DP

  DM/26/0655 Submitted 13 Mar 2026 150 yards away

  Proposed ground floor rear extension.

  Granted Householder Extension 8 docs
  Domestic

• 5 Adastra Avenue Hassocks West Sussex BN6 8DP

  DM/23/0191 Submitted 23 Jan 2023 150 yards away

  Proposed rear extension to kitchen/dining room and loft conversion with rear dormer.

  Granted Lawful development Extension Loft or dormer 8 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