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Planning application

5/2026/1176

12 West Common Grove Harpenden Hertfordshire Al5 2Ll

Decided St Albans Householder

Proposal

Single storey side extension including new garage following demolition of existing garage Alterations to front elevation of main house comprising the removal of the existing feature timbers and rendered panels and replacement with brick slips to ground fl

As published by the council, reference 5/2026/1176

Timeline

Dates from the published record

  1. 18 Jun 2026

    Received by St Albans

  2. 19 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 24 Jul 2026

    Added to PlanIndex

After the decision

The process from here

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.

About householder applications

How this application type works

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

Nearby applications

Within 500 metres

  • TP/2026/0299 Granted

    2 West Common Way Harpenden Hertfordshire Al5 2Lf

    T1 copper beech to remove 2 lower branches over road to remove conflict with highway. T2 cherry tree to lightly shape up by 10% to improve its appearance and get it away from the road.

    16 Jun 2026 198m away Trees
  • TP/2026/0243 Decided

    20 West Common Way Harpenden Hertfordshire Al5 2Lf

    5 Day Notice Sorbus - Extensive decay at 2.5m approx and a stem has failed at the union leaving remaining stems compromised. - Fell

    14 May 2026 198m away Trees
  • 5/2026/0823 Decided

    12 Barlings Road Harpenden Hertfordshire Al5 2An

    Certificate of Lawfulness (proposed) - The proposed alterations to the dwellinghouse, together with the single storey open fronted pergola to the rear with a maximum height of 3 metres, comply with the provisions of Class A, Part 1, Schedule 2 of the Town

    27 Apr 2026 211m away Lawful development
  • TP/2017/0442 Granted

    27 West Common Way Harpenden Al5 2Lh

    1 x Pine tree - Fell.

    4 Sep 2017 230m away Trees
  • TP/2026/0240 Granted

    35 West Common Way Harpenden Hertfordshire Al5 2Lh

    Tree no.1 dead beech to be removed .This tree was probably originally part of the adjoining beech hedge and became intertwined with adjoining leylandii hedge Tree no.2 dead plum tree to be removed Tree no.3 plum tree to be removed. Trees are too close tog

    14 May 2026 230m away Trees
  • TP/2026/0349 Decided

    31A West Common Way Harpenden Hertfordshire Al5 2Lh

    T1 Scotts Pine (poor condition and vigour) - Fell

    18 Jul 2026 230m away Trees

In St Albans

  • 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