153 Crabtree Lane Harpenden Hertfordshire Al5 5Rd

1. 3 Sep 2017

   Received by St Albans

2. 4 Sep 2017

   Validated

   Checked as complete and ready for consideration.

3. 30 Oct 2017

   Decision issued: Certificate of Lawfulness Approved

4. 24 Jul 2026

   Added to PlanIndex

St Albans granted permission on 30 October 2017, 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.

• 100 Crabtree Lane Harpenden Hertfordshire Al5 5Rf

  5/2026/0730 Submitted 13 Apr 2026 56m away

  Removal of rear garden store, erection of first floor side extension over existing ground floor footprint and associated internal alterations

  Decided Householder Extension 8 docs
  Domestic

• 46 Granby Avenue Harpenden Hertfordshire Al5 5Qr

  5/2017/2766 Submitted 1 Oct 2017 95m away

  Demolition of existing dwelling and construction of two, three bedroom semi-detached dwellings (resubmission following approval of 5/2017/1892 dated 19/09/2017)

  Granted Demolition 14 docs
  Domestic

• 33 Holly Walk Harpenden Hertfordshire Al5 5Rg

  5/2017/2734 Submitted 27 Sep 2017 123m away

  Certificate of Lawfulness (proposed) - Hip to gable and rear dormer loft conversion with front roof lights and rear dormer windows

  Granted Lawful development Loft or dormer Windows or glazing 7 docs

• 23 Granby Avenue Harpenden Hertfordshire Al5 5Qp

  5/2026/0398 Submitted 3 Mar 2026 132m away

  Two storey rear extension, single storey side and rear extension, alteration to openings and rooflights, replacement windows and doors, new roof awning over front door

  Granted Householder Extension Loft or dormer +2 11 docs
  Small domestic

• 43 Granby Avenue Harpenden Hertfordshire Al5 5Qp

  5/2026/0584 Submitted 24 Mar 2026 132m away

  Following demolition of store rooms etc, proposed two-storey side and rear extensions, single-storey side and rear extensions along with internal and external alterations, new openings and chimney removal

  Refused Householder Extension Demolition 12 docs
  Small domestic

• 37 Granby Avenue Harpenden Hertfordshire Al5 5Qp

  TP/2026/0388 Submitted 8 Aug 2026 132m away

  T1 (TPO) Beech - Crown reduction by 3-4m approx, crown lift to the legal requirement on highway to 5.4m and crown clean to manage tree in its proximity to the highway and small garden

  Decided Trees 5 docs

• 5/2026/1277 Granted

  52 Napsbury Avenue London Colney Hertfordshire Al2 1Ls

  Certificate of Lawfulness (proposed) - The proposed development comprises building operations associated with the loft conversion of the existing roof space to provide additional habitable accommodation. The works include the construction of a rear dormer

  1 Jul 2026 Lawful development
• 5/2026/1366 Granted

  256 Sandridge Road St Albans Hertfordshire Al1 4Aj

  Certificate of Lawfulness (proposed) - Loft conversion with rear dormer & 4 velux to front

  14 Jul 2026 Lawful development
• 5/2026/1638 Decided

  1 Castle Rise Wheathampstead Hertfordshire Al4 8Hx

  Certificate of Lawfulness (proposed) - Proposed loft hip to gable with rear dormer, internal alterations and all associated works at 1 Castle Rise, AL4 8HX

  7 Sep 2026 Lawful development
• 5/2026/1621 Decided

  9 Ashley Gardens Harpenden Hertfordshire Al5 3En

  Certificate of Lawfulness (proposed) - Erection of a fence within boundary of the property

  2 Sep 2026 Lawful development
• 5/2026/1622 Decided

  9 Necton Road Wheathampstead Hertfordshire Al4 8At

  Certificate of Lawfulness (proposed) - Dormer to rear elevation to existing bedroom. new window to rear

  2 Sep 2026 Lawful development