Hamsland House Lewes Road Horsted Keynes Haywards Heath West Sussex RH17 7DY

1. 17 Dec 2025

   Received by Mid Sussex

2. 11 Feb 2026

   Decision issued: Approved

3. 12 Aug 2026

   Added to PlanIndex

Mid Sussex granted permission on 11 February 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.

• Hamsland Dairy Lewes Road Horsted Keynes Haywards Heath West Sussex RH17 7DY

  DM/26/1686 Submitted 10 Jul 2026 50 yards away

  Discharge of condition numbers 3 and 5 relating to planning application DM/23/0493

  Granted

• Hamsland Dairy Lewes Road Horsted Keynes Haywards Heath West Sussex RH17 7DY

  DM/26/2120 Submitted 27 Aug 2026 50 yards away

  94% historically approved · decision due ~22 Oct

  Variation of condition no 2 relating to planning application DM/23/0493 - to allow for design changes.

  Awaiting decision

• The Stables Lewes Road Horsted Keynes Haywards Heath West Sussex RH17 7DY

  DM/26/0045 Submitted 8 Jan 2026 50 yards away

  Installation of 2 no. rooflights.

  Granted Householder Loft or dormer 13 docs
  Domestic

• 3 Highfields Lewes Road Horsted Keynes Haywards Heath West Sussex RH17 7DY

  DM/19/4407 Submitted 21 Oct 2019 150 yards away

  Replace existing rear conservatory with single storey rear extension and replace existing front porch with new front porch.

  Granted Householder Extension 12 docs
  Small domestic

• 16 Hamsland Horsted Keynes Haywards Heath West Sussex RH17 7DX

  DM/23/0622 Submitted 6 Mar 2023 200 yards away

  Non material amendment relating to planning reference DM/22/1269 to change the subservient roof on the western elevation from a pitched style roof to a flat roof with one central rooflight.

  Withdrawn Amendments Loft or dormer 4 docs

• 11 Jefferies Horsted Keynes Haywards Heath West Sussex RH17 7DR

  DM/23/0721 Submitted 15 Mar 2023 250 yards away

  Two storey side extension and four vehicle hardstanding to the rear of the property.

  Refused Householder Extension 21 docs
  Domestic

• 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