5/2026/0388

1. 2 Mar 2026

   Received by St Albans

2. 3 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 23 Apr 2026

   Decision issued: DC3 Conditional Permission

4. 24 Jul 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 5/2026/0868 Decided

  41 Aldwickbury Crescent Harpenden Hertfordshire Al5 5Sa

  Single storey front & rear extensions

  1 May 2026 151m away Householder
• 5/2026/0730 Decided

  100 Crabtree Lane Harpenden Hertfordshire Al5 5Rf

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

  13 Apr 2026 199m away Householder
• 5/2017/2504 Granted

  153 Crabtree Lane Harpenden Hertfordshire Al5 5Rd

  Certificate of Lawfulness (proposed) - Loft conversion with rear dormer window

  3 Sep 2017 250m away Lawful development
• 5/2026/0945 Decided

  24 Lyndhurst Drive Harpenden Hertfordshire Al5 5Rj

  Proposed first floor side/front extension

  12 May 2026 265m away Householder
• 5/2026/1222 Decided

  7 Grasmere Avenue Harpenden Hertfordshire Al5 5Pt

  Two storey side and rear extension, single storey side and rear extension, front porch, alterations to openings

  25 Jun 2026 304m away Householder
• 5/2026/1344 Decided

  3 Granby Avenue Harpenden Hertfordshire Al5 5Qp

  Two storey front extension, part single and two storey rear extension with basement, replacement main roof including raising ridge height with rooms within the roof space, alterations to external materials and raised patio.

  13 Jul 2026 355m away Householder

• 5/2026/0574 Decided

  39 St Annes Road London Colney Hertfordshire Al2 1Lq

  Porch extension and pitched roof above. Garage conversion

  23 Mar 2026 Householder
• 5/2026/0886 Decided

  17 Tillage Close Tyttenhanger St Albans Hertfordshire Al4 0Fn

  Variation of Condition 2 (approved plans) to marginally increase the width of the garage as approved of planning permission 5/2025/0510 dated 23/05/2025 for Proposed detached garage

  6 May 2026 Householder
• 5/2026/0825 Decided

  282 London Road St Albans Hertfordshire Al1 1Hy

  Retention of a Glazed link to house and gym

  27 Apr 2026 Householder
• 5/2026/0821 Decided

  3 Lindley Court Lindley Close Harpenden Hertfordshire Al5 4Ht

  Single storey front and rear extensions

  27 Apr 2026 Householder
• 5/2026/1372 Decided

  8 Miley Close Harpenden Hertfordshire Al5 3Ds

  Proposed garage conversion and internal alterations in order to create a new habitable Living Room with new side Store

  17 Jul 2026 Householder