HMO planning permission and Article 4 in Bath

A planning check begins with an address and a proposed use or alteration. Identify what exists lawfully, what you want to change and which local controls apply. An HMO licence answers a different question and does not settle planning permission.

Council guidance checked on 3 November 2026. This is a workflow for finding the relevant documents and advice, not a property-specific planning opinion.

Describe the proposed change precisely

Write down the current use, proposed occupiers, shared facilities, room layout and physical works. Distinguish changing occupation from constructing an extension or altering the building: more than one planning question may arise.

B&NES's planning-permission guide explains that the city of Bath has additional controls for HMOs and points to the relevant supplementary planning document. Do not assume rules are identical throughout the wider district or infer a boundary from a neighbourhood name.

Understand what an Article 4 direction does

An Article 4 direction removes specified permitted-development rights within its defined scope. It can make a planning application necessary for a change that might otherwise benefit from those rights. The council's Article 4 page links to the directions and an official policy-mapping tool.

The council lists several directions, covering different topics. Select the Houses in Multiple Occupation in Bath material for the HMO question; restrictions involving estate-agent boards or alterations in heritage areas are not interchangeable with it.

Use the adopted HMO documents

The Houses in Multiple Occupation in Bath document page supplies the HMO Supplementary Planning Document, the February 2023 adoption statement, the Article 4 confirmation notice, FAQs and a dual-use planning note. Start with those published documents and check for later changes.

Do not use an earlier options consultation as though it were the adopted policy. A document can explain how a proposal is assessed without proving that a particular address will receive permission.

Follow the address-based workflow

1. Confirm the address and parcel. Check that the map selection corresponds to the actual building and any relevant land, not a nearby street result.
2. Open the official policy map. Follow the council's Article 4 page and inspect the applicable layer, legend and linked direction. Record the document and map date.
3. Read the direction's scope. Identify the kind of change it covers and the boundary that matters. Do not rely solely on the map colour without the accompanying wording.
4. Check planning history. Use the address-based application-search route on the council planning guide. Read decisions and conditions as well as application descriptions.
5. Compare the proposed arrangement. Record how the number of occupiers, use and any works compare with the evidence you found.
6. Resolve uncertainty with the council. Use the official pre-application or planning-enquiry route where the answer cannot be established from the documents. Keep the response and its assumptions.

This website does not reproduce a boundary map or decide whether a property lies inside it. The live official map and direction are the appropriate references.

Enquiry preparation sheet

Do not treat a longstanding letting advert, an HMO register entry or a neighbour's arrangement as conclusive evidence of lawful planning use. If existing-use evidence is important, ask what evidence and formal route are appropriate for the actual case.

A fictional enquiry example

“The property has been used by one household. I propose letting it to four unrelated adults sharing the kitchen and bathroom, with no physical works. I have located the HMO direction and the planning history, but cannot establish whether the proposed change needs an application. Which information should I provide for advice?”

This is a question structure, not a prediction of the answer. Four occupiers and no building works do not remove the need to investigate planning.

Return to licensing and records

Finish the separate HMO licensing assessment using the occupation and building facts. Record both outcomes in the letting-preparation checklist. Revisit the checks before a material change to the proposal, rather than assuming an old answer covers a different use.