13 St Marys Avenue Northwood HA6 3AY

26/0077/CLPDCertificate of Lawfulness - Proposed UseApproved

Outline / PiP

Approved on 9 March 2026

Delegated (officer decision)

Site boundary (council red line)

Proposal

Certificate of Lawfulness Proposed Development: Construction of single storey rear extension

Received: 19 January 2026
Decision level: Delegated (officer decision)
Council: Three Rivers District Council
Ward: Moor Park And Eastbury

ReceivedReceived19 Jan
ValidatedValidated19 Jan
Consult.Consultation
TargetTarget Date16 Mar
DecidedDecided9 Mar

Decided in 49 days (council typically 56)

About this application

This is an outline application for a single storey rear extension at 13 St Marys Avenue Northwood HA6 3AY. Three Rivers has handled 531 applications of this type. This one was decided in 49 days, 7 days quicker than Three Rivers's typical decision time. The site is in 1 listed building nearby. There are no previous applications recorded at this address. In the past year there have been 127 applications across Moor Park And Eastbury. We hold 931 applications in total for the HA6 postcode area.

92% of outline applications at Three Rivers 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.See what's approved near your address

Application details

Postcode: HA6 3AY
Application type: Certificate of Lawfulness - Proposed Use
Scale / size: Small
Parish: Batchworth Community Council

Planning application dates

Date validated: 19 January 2026
Target decision date: 16 March 2026
Decision issued: 10 March 2026

Applicant and agent

Agent address: AGS 404 Ripple Road Barking Essex IG11 9RU United Kingdom

Planning decision

Statutory period: 56 days

Additional information

Planning Portal ID: PP-14633403
Comments: 0
Documents: 7
Constraints: 35

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Flood zone 3: High probability (rivers and sea)Part of the site

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (22)

flood storage areas, conservation areas, listed buildings, 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.

Source: Three Rivers

Track this application

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

Get email alerts near HA6

New planning applications delivered to your inbox daily.

Around this site

Nearby applications

Discuss this application on r/PlanningPermissionUK

For applicants and trades

Contractors near this project

Find contractors for extensions near this site

View all contractors

What's been approved on your street?

See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.

Get The Signal Report