57 Highfield Letchworth Garden City Hertfordshire SG6 3PY

1. 16 Jan 2023

   Received by North Hertfordshire

2. 28 Feb 2023

   Decision issued: Granted

3. 9 Aug 2026

   Added to PlanIndex

North Hertfordshire granted permission on 28 February 2023, 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.

• 55 Highfield Letchworth Garden City Hertfordshire SG6 3PY

  21/00818/FPH Submitted 15 Mar 2021 50 yards away

  Single storey rear extension (as amended by plans received 8th July 2021)

  Granted Householder Extension 5 docs
  Small domestic

• School House Highfield Letchworth Garden City Hertfordshire SG6 3PY

  26/01996/FPH Submitted 24 Aug 2026 100 yards away

  Part two storey and part single storey rear extension and open-sided front porch following demolition of existing porch and rear element. Alterations to fenestration and external rendering.

  Decided Extension Demolition +1
  Small domestic

• 66 Highfield Letchworth Garden City Hertfordshire SG6 3PZ

  26/01891/FPH Submitted 29 Jul 2026 100 yards away

  Replace garage door with window and raise flat roof of garage to facilitate conversion of attached garage into habitable accommodation.

  Decided Windows or glazing

• 42 Highfield Letchworth Garden City Hertfordshire SG6 3PZ

  26/00296/FPH Submitted 8 Apr 2026 100 yards away

  Two storey rear extension and alterations to existing garage including raising roof height to facilitate garage conversion. Alterations to fenestration throughout including insertion of first floor side window.

  Granted Householder Extension Windows or glazing 6 docs
  Small domestic

• 28 Oaktree Close Letchworth Garden City Hertfordshire SG6 3XY

  22/02921/LDCP Submitted 10 Nov 2022 200 yards away

  Replace front elevation door and insertion of window to existing side elevation of attached garage to facilitate partial conversion of garage into habitable accommodation. Replace existing front entrance door.

  Granted Lawful development Windows or glazing

• 5 Oaktree Close Letchworth Garden City Hertfordshire SG6 3XY

  26/02403/NMA Submitted 24 Sep 2026 250 yards away

  Installation of doors and windows to proposed shed, installation of solar panels on rear elevation and installation of EV charger to front elevation (as non-material amendment to planning permission reference 26/00326/FPH granted on 01.04.2026).

  Decided Amendments Windows or glazing
  Small domestic

• 26/01469/LDCP Granted

  30 Pirton Road Hitchin Hertfordshire SG5 2BD

  Single storey rear extension. Extension to rear patio.

  Received 5 Jun, published by the council 24 Jul 2026 Lawful development
• 26/01459/LDCP Granted

  80 Balmoral Road Hitchin Hertfordshire SG5 1XQ

  Single storey rear extension and insertion of three rooflights to existing rear element. Front porch extension.

  Received 4 Jun, published by the council 24 Jul 2026 Lawful development
• 26/01426/LDCP Granted

  25 Balmoral Road Hitchin Hertfordshire SG5 1XG

  Insertion of rear box dormer and installation of 3 rooflights to front roof slope to facilitate conversion of loft space to habitable accommodation.

  Received 2 Jun, published by the council 24 Jul 2026 Lawful development
• 26/01301/LDCP Granted

  47 Bingen Road Hitchin Hertfordshire SG5 2PR

  Single storey rear extension and alterations to existing fenestration.

  Received 2 Jun, published by the council 24 Jul 2026 Lawful development
• 26/01247/LDCP Granted

  47 Bedford Road Hitchin Hertfordshire SG5 2TP

  Erection of single storey detached outbuilding.

  Received 20 May, published by the council 24 Jul 2026 Lawful development