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Planning application

1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De

Awaiting decision St Albans 5/2025/2330 Householder

Works: Extension Loft or dormer Small domestic

Read from the description, not a valuation. How we read the register

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Construction of part single, part two storey rear extension, new end of garden outbuilding, new external hard landscaping and associated alterations to the existing house. First floor side elevation openings. Enlargement to rear dormer. Materials changes.

As published by the council, reference 5/2025/2330

Application record

Reference
5/2025/2330
Type
Householder
Status
Under Consideration
Received
22 Dec 2025
Validated
23 Dec 2025
Ward
Harpenden West
Parish
Harpenden Town
Postcode
AL5 2DE

Site history

Applications at this address on the St Albans register

This site has had 3 applications since 2017: 2 approved, 0 refused.

  • 5/2017/3242 Granted

    1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De

    Single storey side extension, part single, part two storey rear extension, insertion of windows, alterations to openings and installation of rooflights following demolition of existing rear extension. Removal of main chimney stack (resubmission following

    Decided 20 Feb 2018 Householder
  • 5/2017/2729 Granted

    1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De

    Discharge of Condition 7 (protection of trees) to planning permission 5/2017/0570 dated 27/04/2017 for Single storey side extension , part single part two storey rear extension with rooflights, rooflights to the loft and alterations to openings following

    Decided 23 Nov 2017 Conditions

Timeline

Dates from the published record

  1. 22 Dec 2025

    Received by St Albans

  2. 23 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 24 Jul 2026

    Added to PlanIndex

  4. 23 Sep 2026

    Status changed to Under Consultation

    Previously Under Consideration.

  5. 11 Oct 2026

    Status changed to Under Consideration

    Previously Under Consultation.

  6. Decision

    Awaiting decision

    Decision expected by 17 February 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    St Albans took a median of 76 days over the applications it decided in the last year.

Documents

Plans, drawings, consultee responses and the officer's report

39 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with St Albans for determination, against a statutory target of eight weeks. Over the last year St Albans decided householder applications in a median of 110 days. More in our guide to how long planning decisions take.

About householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 3 Avenue St Nicholas Harpenden Al5 2De

    TP/2017/0658 Submitted 18 Dec 2017 50 yards away

    1 x Hazel, 1 x Oak, 1 x Sycamore - Reduce back to previous pollard points.

    Granted Trees 2 docs
  • 1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De

    5/2017/2729 Submitted 27 Sep 2017 50 yards away

    Discharge of Condition 7 (protection of trees) to planning permission 5/2017/0570 dated 27/04/2017 for Single storey side extension , part single part two storey rear extension with rooflights, rooflights to the loft and alterations to openings following

    Granted Conditions Extension Loft or dormer +1 4 docs
    Small domestic
  • 1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De

    5/2017/3242 Submitted 16 Nov 2017 50 yards away

    Single storey side extension, part single, part two storey rear extension, insertion of windows, alterations to openings and installation of rooflights following demolition of existing rear extension. Removal of main chimney stack (resubmission following

    Granted Householder Extension Loft or dormer +2 12 docs
    Small domestic
  • 4 The Drive Harpenden Hertfordshire Al5 2El

    TP/2026/0308 Submitted 23 Jun 2026 100 yards away

    T3 Cherry - Fell G2 Sycamore & Ash - Crown reduction by 3-4m approx Lawson Cypress Group - Reduction in height by 3-4m approx T1 Lawson Cypress (suffering)

    Granted Trees 5 docs
  • 11 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dd

    TP/2025/0614 Submitted 23 Nov 2025 100 yards away

    T2 Sycamore - Crown reduction by. 3-4m approx (primary cuts) and crown clean T1 Oak - Crown reduction by 3-4m approx (primary cuts) & crown clean. Removal of basil growth and crown lift south side to balance.

    Granted Trees 4 docs
  • 15A Rothamsted Avenue Harpenden Al5 2Dd

    TP/2017/0539 Submitted 18 Oct 2017 100 yards away

    Reduce Laurel hedge to 4m height. Fell dead Hawthorn (exempt work for latter tree).

    Granted Trees 3 docs

In St Albans

  • 5/2026/0517 Granted

    28 White Hedge Drive St Albans Hertfordshire Al3 5Tt

    Proposed two-storey rear extension, loft conversion, and alterations to the existing front entrance porch

    Received 16 Mar, published by the council 31 Aug 2026 Householder
  • 5/2026/1055 Granted

    39 Oakwood Drive St Albans Hertfordshire Al4 0Ul

    Erection of a part single-storey, part two-storey wraparound extension, loft conversion including a rear dormer and rooflights, and construction of a front porch

    Received 1 Jun, published by the council 24 Jul 2026 Householder
  • 5/2026/1278 Granted

    39 Foxcroft St Albans Hertfordshire Al1 5Ss

    Proposed C3 residential extension including two storey front and single storey front and side with internal alterations

    Received 1 Jul, published by the council 24 Jul 2026 Householder
  • 5/2026/1170 Granted

    20 Nimrod Close St Albans Hertfordshire Al4 9Xy

    Extension of existing raised rear terrace with privacy screening and associated alterations to rear fenestration

    Received 17 Jun, published by the council 24 Jul 2026 Householder
  • 5/2026/1338 Granted

    16 Hunters Ride Bricket Wood Hertfordshire Al2 3Lx

    Proposed front porch

    Received 11 Jul, published by the council 9 Aug 2026 Householder