Planning application
21 Walsham Gardens St Helens Merseyside WA9 5UT
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Single storey rear extension.
As published by the council, reference P/2021/0204/CLP
Application record
- Reference
- P/2021/0204/CLP
- Type
- Certificate of Lawfulness: Proposed
- Status
- Decided
- Decision
- Grant
- Received
- 4 Mar 2021
- Validated
- 4 Mar 2021
- Decided
- 19 Mar 2021
- Ward
- Thatto Heath Ward
- Decision by
- Delegated Decision
- Postcode
- WA9 5UT
Timeline
Dates from the published record
-
4 Mar 2021
Received by St. Helens
-
19 Mar 2021
Decision issued: Grant
-
15 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, a design practice
196 applications on PlanIndex · across 19 councils · 90% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
5 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
-
17 Walsham Gardens St Helens WA9 5UT
Single storey rear extension, following partial demolition of existing extension. Erection of outbuilding to rear of garden. Rendering to property and replace windows with grey uPVC.
Granted Householder Extension Demolition +1 13 docsSmall domestic -
6 Hickling Gardens St Helens WA9 5UZ
Prior approval for a single storey rear extension following demolition of conservatory, projecting 5.37m from the rear, 3.54m max height and 2.25m at the eaves.
Decided Prior approval Extension Demolition 17 docsSmall domestic -
15 Salhouse Gardens St Helens Merseyside WA9 5UX
Garage conversion and internal reconfiguration. Installation of new window opening to first floor front elevation.
Granted Householder Windows or glazing 7 docsSmall domestic -
5 Salhouse Gardens St Helens WA9 5UX
Retention of infill of existing passageway to form beauty salon (Class E) in this part of the dwellinghouse, along with the installation of roller shutter to shop front.
Granted Full applications Extension Windows or glazing 16 docsDomestic -
2 Walsham Gardens St Helens Merseyside WA9 5UT
Demolition of the existing conservatory and erection of a part two storey part single storey rear extension, single storey side extension and a front porch.
Granted Householder Extension Demolition 23 docsSmall domestic -
35 Womack Gardens St Helens WA9 5UY
94% historically approved · decision due ~31 Jul
First floor rear extension.
Decided Extension
Other lawful development applications
In St. Helens
-
P/2026/0441/CLP Awaiting decision
108 New Street St Helens WA9 3XG
Certificate of lawfulness for proposed change of use from C3 (dwellinghouse) to C4 (6-person HMO).
-
P/2026/0444/CLP Awaiting decision
19 Tracy Drive Newton Le Willows St Helens WA12 8PX
Single storey side and rear extensions and garage conversion.
-
P/2026/0439/CLP Awaiting decision
87 Edge Street Thatto Heath St Helens WA9 5JX
Certificate of lawfulness for a proposed change of use from dwellinghouse (C3) to childrens home (C2) for 1 child
-
P/2026/0438/CLP Awaiting decision
9 Chirton Close Haydock St Helens WA11 0FG
Single storey rear extension and garage conversion.
-
P/2026/0421/CLP Awaiting decision
255 Marshalls Cross Road St Helens Merseyside WA9 3DE
Certificate of lawfulness for proposed change of use from Dwellinghouse (Use Class C3) to a 6-person HMO (Use Class C4), including rear dormer and front rooflight.