21A Coldharbour Lane Bushey Hertfordshire WD23 4NP

1. 20 Jul 2026

   Received by Hertsmere

2. 30 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 14 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hertsmere took a median of 59 days over the applications it decided in the last year.

This application is with Hertsmere for determination, against a statutory target of eight weeks. Over the last year Hertsmere decided householder applications in a median of 64 days. More in our guide to how long planning decisions take.

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.

• 17 Coldharbour Lane Bushey Hertfordshire WD23 4NP

  21/0847/HSE Submitted 19 Apr 2021 47m away

  Demolition of existing front porch, construction of part single part two storey side and rear extension and relocation of front entrance.

  Granted Householder Extension Demolition 11 docs
  Small domestic

• 2 Reddings Avenue Bushey Hertfordshire WD23 3PB

  23/0197/HSE Submitted 3 Feb 2023 56m away

  First floor side extension with pitched roof and 2 rooflights.

  Refused Householder Extension Loft or dormer 8 docs
  Domestic

• 15A Coldharbour Lane Bushey Hertfordshire WD23 4NR

  21/0657/HSE Submitted 25 Mar 2021 61m away

  Construction of single storey rear infill extension and alterations to fenestration (amended description).

  Granted Householder Extension Windows or glazing 13 docs
  Small domestic

• 68 Coldharbour Lane Bushey Hertfordshire WD23 4NY

  21/1485/FUL Submitted 19 Jul 2021 62m away

  Demolition of existing garages and erection of detached, 2 storey, 3 bed dwelling to rear of No 68 with parking and access from Reddings Avenue.

  Refused Full applications Demolition 14 docs
  Domestic

• 10 Chiltern Avenue Bushey WD23 4QA

  14/0949/HSE Submitted 23 Jun 2014 68m away

  Ground & first floor side and rear extensions and new front porch. (Amended plans received 21/07/14 & 18/08/14)

  Granted Householder Extension 39 docs
  Small domestic

• 58 Coldharbour Lane Bushey Hertfordshire WD23 4NY

  21/1535/CLP Submitted 26 Jul 2021 72m away

  Conversion of loft to habitable room with hip to gable roof alterations to include rear dormer and front rooflight. Certificate of Lawful Development (Proposed).

  Granted Lawful development Loft or dormer Roofing 7 docs

• 26/0157/HSE Decided

  8 The Drive Radlett Hertfordshire WD7 7DA

  Demolition of existing garage; construction of part single, part two storey side and rear extensions and front porch; alterations to levels and hard landscaping to front and rear; alterations to fenestration. (ADDITIONAL DOCUMENT RECEIVED: 18/08/2026 - Tree Report and Tree Protection Plan & secondary dropped kerb removed).

  9 Feb 2026 Householder
• 26/0653/HSE Decided

  45 Highview Gardens Potters Bar Hertfordshire EN6 5PN

  Construction of part single, part two storey side and rear extension with associated roof works.

  13 May 2026 Householder
• 26/0928/HSE Decided

  5 Dellfield Close Radlett Hertfordshire WD7 8LS

  Construction of two storey side and part single part two storey rear extension. Erection of detached double garage with ancillary utility space following the demolition of the existing garage. Conversion of loft to habitable room to include roof alterations and front, side and rear roof lights. Front porch extension.

  7 Jul 2026 Householder
• 26/0885/HSE Granted

  89 Hatfield Road Potters Bar Hertfordshire EN6 1HZ

  Demolition of existing detached garage and construction of part single, part two storey front, side and rear extension.

  26 Jun 2026 Householder
• 26/0985/HSE Decided

  3 Bentley Place Bentley Heath Barnet Hertfordshire EN5 4BF

  Part single, part two-storey rear extension, 2x new rear dormers, conversion of existing garage into habitable room, and alterations to fenestration.

  17 Jul 2026 Householder