70 Holtye Road East Grinstead West Sussex RH19 3HU

1. 5 Feb 2026

   Received by Mid Sussex

2. 10 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 1 Apr 2026

   Decision issued: Approved

4. 12 Aug 2026

   Added to PlanIndex

Mid Sussex granted permission on 1 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.

• 68 Holtye Road East Grinstead West Sussex RH19 3HU

  DM/21/2304 Submitted 16 Jun 2021 50 yards away

  Demolition of single storey side and rear extension. Construction of single storey side, rear extensions and internal alterations.

  Granted Householder Extension Demolition 9 docs
  Small domestic

• 17 Lynton Park Avenue East Grinstead West Sussex RH19 3XA

  DM/21/2029 Submitted 25 May 2021 150 yards away

  1x Two-storey and 1x Single storey side extensions and a loft conversion to existing detached house. Amended plans received 29.06.2021 showing reduction in size of dormer windows to rear roof slope. Description amended 04.08.2021 to include proposed increase in height of roof. Additional plans and street elevations received 04.08.2021 to show proposal in relation to adjoining properties.

  Granted Householder New dwelling Extension +2 22 docs
  Small domestic

• 18 Lynton Park Avenue East Grinstead West Sussex RH19 3XB

  DM/23/0813 Submitted 23 Mar 2023 150 yards away

  Modify existing upvc conservatory into orangery. Remove existing upvc frames and roof from dwarf walls, add extended brick piers, instal new upvc windows and aluminium bifold doors, flat roof and glass lantern to create an replacement orangery structure.

  Granted Householder Extension Windows or glazing 13 docs
  Small domestic

• 14 Lynton Park Avenue East Grinstead West Sussex RH19 3XB

  DM/25/3262 Submitted 22 Dec 2025 150 yards away

  Proposed two storey side extension over existing garage. Single storey rear extension with raised decking. Part garage conversion. pitch roof over remaining part of ground floor garage. Front porch. (amended plans and description 05.02.2026)

  Granted Householder Extension 19 docs
  Small domestic

• Magnolia House 12 Lynton Park Avenue East Grinstead West Sussex RH19 3XB

  DM/25/3081 Submitted 1 Dec 2025 150 yards away

  Proposed single storey rear extension and two storey side extension.

  Granted Householder Extension 17 docs
  Small domestic

• 14 Lynton Park Avenue East Grinstead West Sussex RH19 3XB

  DM/26/1389 Submitted 4 Jun 2026 150 yards away

  Proposed retaining wall to rear of garden raising of garden level.

  Granted

• ,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