Prior Approvals in Tower Hamlets
A practical guide to the prior approval process in the London Borough of Tower Hamlets — including householder rear extensions, office-to-residential and commercial conversions
LOCATIONS
Andrew Ransome
4/23/20263 min read
Prior Approval Planning Applications in Tower Hamlets
Prior approval is a form of permitted development consent. It does not require full planning permission, but the development is only permitted if the local planning authority confirms — or is deemed to have confirmed — that certain specified matters are acceptable.
The prior approval process is faster and less onerous than a full planning application, but there are strict procedural requirements and the scope for refusal is limited to the specified matters.
For further technical background, visit my Permitted Development knowledge section.
I advise homeowners, developers, and landowners in Tower Hamlets on prior approval applications, helping to navigate the process efficiently and maximise the prospects of a successful outcome.
Planning Context in Tower Hamlets
The London Borough of Tower Hamlets covers one of the most intensively developed parts of East London, including Canary Wharf, Whitechapel, Bethnal Green, Bow, Poplar and the Isle of Dogs.
The borough is subject to an Article 4 Direction that removes certain permitted development rights in specific areas — most notably the removal of office-to-residential permitted development rights across large parts of the borough.
This makes Tower Hamlets one of the more complex London boroughs in which to navigate the prior approval regime, and professional advice is strongly recommended before submitting a notification.
Common Prior Approval Routes in Tower Hamlets
Commercial to Residential Conversions (Class MA) - The Class MA permitted development right allows the change of use of buildings in commercial, business and service use (Use Class E) to residential use (Class C3).
Tower Hamlets has partially removed this right via Article 4 Direction across significant areas of the borough. Where the right does apply, prior approval is required and Tower Hamlets will consider flood risk, contamination, noise, transport and the impact on the supply of services.
Class A (Schedule 2, Part 1) – larger home extensions (single-storey rear extensions beyond the standard limits)
Class G – conversion of space above commercial units into up to two flats, read about Class G here.
Class ZA - Commercial redeveopment, read about ZA here.
The Prior Approval Process
The prior approval process requires submission of an application to the local planning authority, which then has a set period (typically 56 days depending on the class) to determine whether prior approval is required and, if so, to approve or refuse it.
The council may assess matters such as transport and highways impacts, flooding risk, contamination, noise, and the design and external appearance of the development, depending on the class of permitted development involved.
Why Use a Planning Consultant?
LDC applications require a careful assessment of the relevant legislation, any Article 4 Directions, and the specific circumstances of the property. An incorrectly prepared application can be refused, leaving uncertainty about the lawfulness of the works or use.
I prepare clear, well-evidenced LDC applications that maximise the prospects of success. For further reading, see:
Case Studies
Class MA office change of use to residential
Get Planning Advice in Tower Hamlets
If you are considering a project that may benefit from the prior approval route in Tower Hamlets, get in touch for clear, practical advice on your options.
Andrew Ransome MRTPI Email: andrew@adpltd.co.uk | Tel: 01206 242070
© 2026. All rights reserved.