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109 Overstone Road Harpenden Hertfordshire AL5 5PL

5/2026/0639FullApproved

Approved on 17 June 2026

Council decision: DC3 Conditional Permission3 conditions

Approximate location: the centre of the postcode, not the exact property.

Proposal

Proposed two-storey rear extension along with internal and external alterations and chimney removal at 109 Overstone Road Harpenden Hertfordshire AL5 5PL

Submitted
27 March 2026
Ward
Harpenden West
  1. Received27 Mar
  2. Validated
  3. Consult.
  4. Target
  5. Decided17 Jun

Decided in 82 days (council typically 56)

About this application

This is a full planning application for a two storey rear extension at 109 Overstone Road Harpenden Hertfordshire AL5 5PL. St Albans has handled 3,966 applications of this type. This one was decided in 82 days, 4 weeks longer than St Albans's typical decision time. There are no previous applications recorded at this address. In the past year there have been 196 applications across Harpenden West. We hold 3,774 applications in total for the AL5 postcode area.

86% of full applications at St Albans City and District Council were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
AL5 5PL
Application type
Full
Scale / size
Small

Planning application dates

Consultation expiry
15 May 2026

Applicant and agent

Applicant
Private applicant
Agent
Clarke & Whalen
Architect profile
CLARKE & WHALEN ARCHITECTS LIMITED

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (24)

flood storage areas, conservation areas, listed buildings, Article 4 directions, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source: St Albans

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