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Planning application

23 Granby Avenue Harpenden Hertfordshire Al5 5Qp

Decided St Albans 5/2026/0398 Householder

Works: Extension Loft or dormer Roofing Windows or glazing Small domestic

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

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

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

As published by the council, reference 5/2026/0398

Application record

Reference
5/2026/0398
Type
Householder
Status
Approved
Decision
DC3 Conditional Permission
Received
3 Mar 2026
Validated
23 Mar 2026
Decided
12 May 2026
Ward
Harpenden East
Parish
Harpenden Town
Decision by
Delegated
Postcode
AL5 5QP

Timeline

Dates from the published record

  1. 3 Mar 2026

    Received by St Albans

  2. 23 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 12 May 2026

    Decision issued: DC3 Conditional Permission

  4. 31 Aug 2026

    Added to PlanIndex

Documents

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

11 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.

Trade members open them from here.

Open the documents

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

  • 43 Granby Avenue Harpenden Hertfordshire Al5 5Qp

    5/2026/0584 Submitted 24 Mar 2026 0m 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 0m 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

  • 3 Granby Avenue Harpenden Hertfordshire Al5 5Qp

    5/2026/1344 Submitted 13 Jul 2026 0m away

    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.

    Decided Householder Extension Roofing 6 docs
    Domestic

  • 43 Granby Avenue Harpenden Hertfordshire Al5 5Qp

    5/2026/1265 Submitted 30 Jun 2026 0m 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

    Decided Householder Extension Demolition 11 docs
    Small domestic

  • 46 Granby Avenue Harpenden Hertfordshire Al5 5Qr

    5/2017/2766 Submitted 1 Oct 2017 38m 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)

    Decided Demolition 14 docs
    Domestic

  • 153 Crabtree Lane Harpenden Hertfordshire Al5 5Rd

    5/2017/2504 Submitted 3 Sep 2017 132m away

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

    Granted Lawful development Loft or dormer Windows or glazing 7 docs

In St Albans

  • 5/2026/1173 Decided

    6 Longacres St Albans Hertfordshire Al4 0Dr

    Demolition of existing outbuilding and construction of single storey rear extension

    18 Jun 2026 Householder
  • 5/2026/0299 Decided

    12 Rowlatt Drive St Albans Hertfordshire Al3 4Nb

    Demolition of existing side and rear extension and construction of a canopy porch, part single, part two storey front, two storey side and single storey rear extension

    17 Feb 2026 Householder
  • 5/2026/0318 Refused

    7 Ardens Way St Albans Hertfordshire Al4 9Uw

    Demolition of existing side canopy, detached garage, rear patio and garden shed and the construction of two storey front, side and rear extensions, together with part single storey rear extension and a front porch canopy and extension to driveway

    19 Feb 2026 Householder
  • 5/2026/1139 Decided

    50 Fontmell Close St Albans Hertfordshire Al3 5Hu

    Single storey rear extension and side windows with top openers over 1.7m high

    10 Jun 2026 Householder
  • 5/2026/0525 Decided

    11 Hillside Road Harpenden Hertfordshire Al5 4Bs

    Garage conversion, with part roof extension and new front porch extension

    17 Mar 2026 Householder