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Planning application

21 Grasmere Avenue Harpenden Hertfordshire Al5 5Pt

Decided St Albans 5/2025/2166 Householder

Works: Extension Loft or dormer Roofing 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

First floor rear extension with roof lights and juliet balcony, alterations to existing rear single storey projection and alterations to roof with new roof lights

As published by the council, reference 5/2025/2166

Application record

Reference
5/2025/2166
Type
Householder
Status
Approved
Decision
DC3 Conditional Permission
Received
26 Nov 2025
Validated
27 Nov 2025
Decided
17 Apr 2026
Ward
Harpenden East
Parish
Harpenden Town
Decision by
Delegated
Postcode
AL5 5PT

Timeline

Dates from the published record

  1. 26 Nov 2025

    Received by St Albans

  2. 27 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 17 Apr 2026

    Decision issued: DC3 Conditional Permission

  4. 25 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

St Albans has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

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.

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