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Planning application

3 Granby Avenue Harpenden Hertfordshire Al5 5Qp

Awaiting decision St Albans 5/2026/1344 Householder

Works: Extension Roofing 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

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.

As published by the council, reference 5/2026/1344

Application record

Reference
5/2026/1344
Type
Householder
Status
Under Consultation
Received
13 Jul 2026
Validated
14 Jul 2026
Ward
Harpenden East
Parish
Harpenden Town
Postcode
AL5 5QP

Comment by 14 November 2026

The council is taking comments on this application until then. Comments go to St Albans through their own planning portal.

Timeline

Dates from the published record

  1. 13 Jul 2026

    Received by St Albans

  2. 14 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 30 Jul 2026

    Added to PlanIndex

  4. 23 Sep 2026

    Status changed to Under Consideration

    Previously Under Consultation.

  5. 11 Oct 2026

    Status changed to Under Consultation

    Previously Under Consideration.

  6. Decision

    Awaiting decision

    Decision expected by 8 September 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

10 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

  • 23 Granby Avenue Harpenden Hertfordshire Al5 5Qp

    5/2026/0398 Submitted 3 Mar 2026 50 yards 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 50 yards 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 50 yards 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

    Granted Trees 6 docs

  • 43 Granby Avenue Harpenden Hertfordshire Al5 5Qp

    5/2026/1265 Submitted 30 Jun 2026 50 yards 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

    Granted Householder Extension Demolition 13 docs
    Small domestic

  • 45 Granby Avenue Harpenden Hertfordshire Al5 5Qp

    TP/2026/0465 Submitted 17 Sep 2026 50 yards away

    98% historically approved · decision due ~13 Nov

    T1 Beech - Crown lift over highway to height of 6m to prevent vehicle strike and crown clean only

    Awaiting decision Trees 4 docs

  • 52 Granby Avenue Harpenden Hertfordshire Al5 5Qr

    5/2016/3390 Submitted 14 Nov 2016 50 yards away

    Two storey side extension, new porch and alterations to openings

    Granted Householder Extension 9 docs
    Small domestic

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