12 Cashio Lane Letchworth Garden City Hertfordshire SG6 1AX

1. 3 Sep 2026

   Received by North Hertfordshire

2. 4 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 29 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   North Hertfordshire took a median of 51 days over the applications it decided in the last year.

This application is with North Hertfordshire for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.

More on heritage and listed buildings applications in our guide

• 12 Cashio Lane Letchworth Garden City Hertfordshire SG6 1AX

  26/02033/FPH Submitted 3 Sep 2026 0m away

  90% historically approved · decision due ~29 Oct

  Single storey rear extension following partial demolition of existing garage.

  Awaiting decision Extension Demolition
  Small domestic

• 6 Cashio Lane Letchworth Garden City Hertfordshire SG6 1AX

  26/01583/FPH Submitted 19 Jun 2026 0m away

  90% historically approved · decision due ~14 Aug

  Single storey side/rear extension following demolition of existing rear conservatory.

  Decided Extension Demolition
  Small domestic

• 16 Cashio Lane Letchworth Garden City Hertfordshire SG6 1AX

  21/01478/FPH Submitted 10 May 2021 17m away

  Single storey rear extension.

  Decided Householder Extension 6 docs
  Small domestic

• 14 Cashio Lane Letchworth Garden City Hertfordshire SG6 1AX

  24/02675/FPH Submitted 22 May 2025 35m away

  Installation of additional vehicular crossover, front boundary wall and entrance gates (development has commenced).

  Refused Householder 11 docs
  Small domestic

• 8 Cashio Lane Letchworth Garden City Hertfordshire SG6 1AX

  24/02599/TCA Submitted 15 Nov 2024 106m away

  T1: Beech - Reduce by approx. 25-30% to suitable lateral growth points.

  Granted Trees 4 docs

• 8 Cashio Lane Letchworth Garden City Hertfordshire SG6 1AX

  24/01880/TCA Submitted 22 Aug 2024 106m away

  Copper Beach - Reduce by up to 20% and removal of branch and smaller trunk

  Granted Trees 3 docs

• 26/02079/LBC Awaiting decision

  172 Wilbury Road Letchworth Garden City Hertfordshire SG6 4JA

  Replace single-glazed first floor window on front elevation with timber slimline double-glazed window.

  2 Sep 2026 Heritage and listed buildings
• 26/01870/LBC Awaiting decision

  15 The Green Kimpton Hitchin Hertfordshire SG4 8RZ

  Replace 1 no. window to front (WF1) with a timber 16mm double-glazed unit.

  28 Aug 2026 Heritage and listed buildings
• 26/01684/LBC Awaiting decision

  13 - 14 The Green Kimpton Hertfordshire SG4 8RZ

  Replace windows to front (WG7, WG8, WG9, WF2, WF3, WF4), side (WG1, WG3) and rear (WG2, WG4, WG5, WG6, WF1) with timber 16mm double-glazed units and replace 2 no. door sets (DG1 and DG2) to rear.

  28 Aug 2026 Heritage and listed buildings
• 26/01871/LBC Awaiting decision

  16 The Green Kimpton Hertfordshire SG4 8RZ

  Replace 2 no. windows to front (WG1 and WF1) with timber 16mm double-glazed units.

  28 Aug 2026 Heritage and listed buildings
• 26/01958/LBC Awaiting decision

  16 Melbourn Street Royston Hertfordshire SG8 7BZ

  Installation of illuminated and non-illuminated signs to exterior.

  27 Aug 2026 Heritage and listed buildings