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7 Tyndall Avenue Waterloo L22 3YF

DC/2026/00211Prior notification - household (42 days)Approved
Outline / PiP

Approved on 18 March 2026

Council decision: Prior Approval Not RequiredDelegated (officer decision)

Site boundary (council red line)

Proposal

Prior approval submission for a proposed rear extension projecting 5.0 metres from the rear wall of the original dwellinghouse with a height of 3.0 metres at the eaves and a maximum height of 3.0 metres (Valid on 05/02/2026)

Received
5 February 2026
Decision level
Delegated (officer decision)
Ward
Church Ward
Agent
O'rourke-Designs
  1. Received5 Feb
  2. Validated5 Feb
  3. Consult.
  4. Target
  5. Decided18 Mar

Decided in 41 days (council typically 56)

About this application

This is an outline application for a rear extension at 7 Tyndall Avenue Waterloo L22 3YF. Sefton has handled 368 applications of this type. This one was decided in 41 days, 2 weeks quicker than Sefton'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 33 applications across Church Ward. We hold 104 applications in total for the L22 postcode area.

82% of outline applications at Sefton Metropolitan Borough 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
L22 3YF
Application type
Prior notification - household (42 days)
Scale / size
Small

Planning application dates

Date validated
5 February 2026

Applicant and agent

Applicant
Private applicant
Agent
O'rourke-Designs
Agent address
9 Swansea Close Garston L19 2HF

Planning decision

Case officer
James Brockway

Additional information

Documents
6

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • 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: Sefton

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