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20 Chestnut Avenue York YO31 1BR

26/00011/CPDCertificate of Lawful Proposed DevlpmntApproved
Outline / PiP

Approved on 3 March 2026

Council decision: GrantDelegated (officer decision)

Site boundary (council red line)

Proposal

Certificate of lawfulness for proposed development of single storey rear and side extension

Received
5 January 2026
Decision level
Delegated (officer decision)
Ward
Heworth
Agent
JP Architects Ltd
  1. Received5 Jan
  2. Validated6 Jan
  3. Consult.
  4. Target3 Mar
  5. Decided3 Mar

Decided in 56 days (council typically 56)

About this application

This is an outline application for a side extension at 20 Chestnut Avenue York YO31 1BR. York has handled 87 applications of this type. This one was decided in 57 days. The site is in a conservation area. There has been 1 other application at this address. In the past year there have been 35 applications across Heworth. We hold 284 applications in total for the YO31 postcode area.

83% of outline applications at City of York 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
YO31 1BR
Application type
Certificate of Lawful Proposed Devlpmnt
Scale / size
Small
Parish
Heworth Planning Panel

Planning application dates

Date validated
6 January 2026
Target decision date
3 March 2026
Permission expires
3 March 2031

Applicant and agent

Agent
JP Architects Ltd
Agent address
34 Pear Tree Avenue Poppleton YO26 6HH

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14597495
Comments
0
Documents
8
Constraints
6

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Hmo
  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: tree preservation orders. Ask the council if these matter.

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.

© 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.

Planning history at this site

1 other application at this property, newest first.

  1. 2025
    14 Oct

    Single storey side and rear extensions (retrospective)

    RefusedApplication25/02041/FUL

Source: York

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