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3 Ambrose Lane Harpenden Hertfordshire Al5 4Au

5/2019/0783Certificate of Lawfulness - (proposed)Approved
Outline / PiP

Approved on 21 May 2019

Council decision: Certificate of Lawfulness ApprovedDelegated (officer decision)

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

Proposal

Certificate of Lawfulness (proposed) - Proposed extension behind the original and projects 4 metres and height is less than 4 metres. The eaves are less than 3 metres and the materials match the house

Received
26 March 2019
Decision level
Delegated (officer decision)
Ward
Harpenden West
  1. Received26 Mar
  2. Validated27 Mar
  3. Consult.
  4. Target27 Mar
  5. Decided21 May

Decided in 55 days (council typically 56)

About this application

This is an outline application for an extension at 3 Ambrose Lane Harpenden Hertfordshire Al5 4Au. St Albans has handled 912 applications of this type. This one was decided in 56 days. There are no previous applications recorded at this address. In the past year there have been 194 applications across Harpenden West. We hold 3,774 applications in total for the AL5 postcode area.

71% of outline 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 4AU
Application type
Certificate of Lawfulness - (proposed)
Scale / size
Small
Parish
Harpenden Town

Planning application dates

Date validated
27 March 2019
Target decision date
27 March 2019
Application expires
21 May 2019

Planning decision

Statutory period
55 days

Additional information

Planning Portal ID
PP-7734512
Documents
5

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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