44 Cowslip Hill Letchworth Garden City Hertfordshire SG6 4EZ

1. 27 Apr 2026

   Received by North Hertfordshire

2. 27 May 2026

   Decision issued: Granted

3. 9 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 46 Cowslip Hill Letchworth Garden City Hertfordshire SG6 4EZ

  21/00364/FPH Submitted 2 Feb 2021 11m away

  Erection of garden room outbuilding in rear garden

  Decided Householder 10 docs
  Small domestic

• 56 Cowslip Hill Letchworth Garden City Hertfordshire SG6 4EZ

  19/02646/NCS Submitted 5 Nov 2019 70m away

  Single storey rear extension with the following dimension: Length as measured from rear wall of original dwelling - 4.0 metres

  Granted Outline Extension 7 docs
  Small domestic

• 5 Hawthorn Hill Letchworth Garden City Hertfordshire SG6 4HE

  23/00140/NMA Submitted 20 Jan 2023 141m away

  The extension is to be slightly increased in width up to the existing boundary with No. 7 Hawthorn Hill (as a non-material amendment to planning permission 22/02338/FPH granted on 13.10.2022).

  Decided Amendments Extension 13 docs

• 2 Rowan Crescent Letchworth Garden City Hertfordshire SG6 4EY

  21/01919/FPH Submitted 22 Jun 2021 173m away

  Modification of window and door openings to rear elevation, partial conversion of existing garage to store/garden room including external rendering and installation of one velux window to existing rear roof slope.

  Decided Householder Loft or dormer Windows or glazing 8 docs
  Small domestic

• 4 Wheat Hill Letchworth Garden City Hertfordshire SG6 4HJ

  24/01690/FPH Submitted 31 Jul 2024 188m away

  Installation of rear elevation air source heat pump.

  Decided Householder 10 docs
  Domestic

• 23 Longmead Letchworth Garden City Hertfordshire SG6 4HP

  22/03180/FPH Submitted 9 Dec 2022 213m away

  Retention of single storey side and rear extension following demolition of existing side conservatory

  Decided Householder Extension Demolition 9 docs
  Small domestic

• 26/01469/LDCP Granted

  30 Pirton Road Hitchin Hertfordshire SG5 2BD

  Single storey rear extension. Extension to rear patio.

  5 Jun 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.

  4 Jun 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.

  2 Jun 2026 Lawful development
• 26/01301/LDCP Granted

  47 Bingen Road Hitchin Hertfordshire SG5 2PR

  Single storey rear extension and alterations to existing fenestration.

  2 Jun 2026 Lawful development
• 26/01247/LDCP Granted

  47 Bedford Road Hitchin Hertfordshire SG5 2TP

  Erection of single storey detached outbuilding.

  20 May 2026 Lawful development