Skip to content

52 Napsbury Avenue London Colney Hertfordshire Al2 1Ls

5/2026/1277Certificate of Lawfulness - (proposed)Approved
Outline / PiP

Approved on 10 September 2026

Council decision: Certificate of Lawfulness ApprovedDelegated (officer decision)

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

Proposal

Certificate of Lawfulness (proposed) - The proposed development comprises building operations associated with the loft conversion of the existing roof space to provide additional habitable accommodation. The works include the construction of a rear dormer

Received
1 July 2026
Decision level
Delegated (officer decision)
Ward
London Colney
  1. Received1 Jul
  2. Validated2 Jul
  3. Consult.24 Jul
  4. Target24 Jul
  5. Decided10 Sep

Decided in 70 days (council typically 56)

About this application

This is an outline application for a loft conversion at 52 Napsbury Avenue London Colney Hertfordshire Al2 1Ls. St Albans has handled 912 applications of this type. This one was decided in 71 days, 2 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 56 applications across London Colney. We hold 1,041 applications in total for the AL2 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
AL2 1LS
Application type
Certificate of Lawfulness - (proposed)
Scale / size
Small
Parish
London Colney

Planning application dates

Date validated
2 July 2026
Consultation expiry
24 July 2026
Consultation end
24 July 2026
Target decision date
24 July 2026
Application expires
26 August 2026

Planning decision

Statutory period
55 days

Additional information

Planning Portal ID
PP-15053089
Documents
3

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

Track this application

Get email alerts when there is a planning decision or status change.

Get email alerts near AL2

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

Planning something similar?

See what the council approved and refused for loft conversions and dormers on your street. Pick your home and get the evidence before you pay for drawings.

See what gets approved on your streetBuying this property? Report on this address