26 Dellney Avenue Haywards Heath West Sussex RH16 3ND

1. 12 Feb 2026

   Received by Mid Sussex

2. 7 Apr 2026

   Decision issued: Approved

3. 12 Aug 2026

   Added to PlanIndex

Mid Sussex granted permission on 7 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• Land Rear Of 14 And 16 Dellney Avenue Haywards Heath West Sussex RH16 3ND

  14/01927/FUL Submitted 29 May 2014 50 yards away

  Pair of semi-detached dwellings.

  Withdrawn Full applications 60 docs

• 19 Dellney Avenue Haywards Heath West Sussex RH16 3LX

  DM/25/2351 Submitted 16 Sep 2025 50 yards away

  Variation of condition 3 of planning application DM/25/0771 to allow for an alternative external finish on the workshop (weather edge cladding instead of brickwork).

  Granted Amendments 8 docs

• 17 Dellney Avenue Haywards Heath West Sussex RH16 3LX

  DM/25/2570 Submitted 10 Oct 2025 50 yards away

  Proposed replacement out-building

  Granted Lawful development 8 docs

• 17 Dellney Avenue Haywards Heath West Sussex RH16 3LX

  DM/24/2879 Submitted 26 Nov 2024 50 yards away

  Replace conservatory, lean-to structure and garage with single storey rear extension and patio.

  Granted Householder Extension 14 docs
  Small domestic

• 12 And 14 Eastern Road Haywards Heath West Sussex RH16 3NN

  DM/26/0502 Submitted 25 Feb 2026 100 yards away

  Two storey rear and side extensions and single storey rear extensions to a pair of semi-detached houses previously converted into four flats, with garden rooms within the rear garden and new parking spaces within the front garden.

  Granted Full applications New dwelling Extension 32 docs
  Several homes

• Woodland To The Rear Of 2 Holly Road Haywards Heath West Sussex RH16 3NF

  DM/26/0513 Submitted 26 Feb 2026 150 yards away

  (T1 and T2) 2 x Hornbeams - reduce overhang by 2 to 3m. (T3) Oak tree - monolith . (T4) Chestnut - fell

  Granted Trees 6 docs

• ,DM/26/1028 Withdrawn

  6 Tate Crescent Burgess Hill West Sussex RH15 8TE

  Proposed partial conversion of attached garage to habitable accommodation. Fenestration alterations.

  Received 24 Apr, published by the council 31 Jul 2026 Lawful development
• DM/26/1052 Granted

  5 Hickmans Lane Lindfield Haywards Heath West Sussex RH16 2BQ

  New porch, rear box dormer loft conversion, and internal alterations.

  Received 27 Apr, published by the council 31 Jul 2026 Lawful development
• DM/26/0917 Refused

  20 Royal George Road Burgess Hill West Sussex RH15 9SD

  Proposed garden building

  Received 10 Apr, published by the council 31 Jul 2026 Lawful development
• DM/26/1019 Granted

  97 Leylands Road Burgess Hill West Sussex RH15 8AA

  Proposed loft conversion and rear extension

  Received 23 Apr, published by the council 31 Jul 2026 Lawful development
• DM/26/1038 Granted

  41 College Lane Hurstpierpoint Hassocks West Sussex BN6 9AD

  Demolition of 2no existing first-floor rear (north) elevation dormers, to be replaced with a new, full width dormer. A new 3m2 porch will be added at ground floor on the east elevation.

  Received 27 Apr, published by the council 12 Aug 2026 Lawful development