Cambridge HMO Article 4 controls have moved onto the formal decision timetable, with Cambridge City Council preparing to consider a non-immediate Direction for the urban area and South Cambridgeshire lining up a linked proposal for areas around the city edge.
The two councils share a planning service, but the Cambridge HMO Article 4 decisions will be taken separately. Cambridge City Council Cabinet is due to consider the city proposal on 20th October 2026, while South Cambridgeshire District Council is due to consider its corresponding proposal on 24th November 2026.
Neither entry means permitted development rights have already been withdrawn. Cambridge has now published a scrutiny report and proposed boundary map, but no made Direction or operative date has been verified. Public consultation remains a proposed next step.
Cambridge HMO Article 4: proposed map now published
Cambridge City Council has published a scrutiny report and proposed boundary map ahead of its Cabinet decision. They provide substantially more detail than the original forward-plan entry, which referred to the “urban area of Cambridge”.
The Cambridge scrutiny report, dated 28th September, recommends preparing a non-immediate Direction and consulting the public. It is due for scrutiny on 6th October, ahead of Cabinet on 20th October.
The accompanying proposed Cambridge boundary map identifies the area officers recommend for the control. It is a proposal accompanying a committee report, not evidence that a legally effective Direction has already been made.
The report argues that Cambridge’s compact urban form, dispersed employment and university sites, and concentrations of shared housing make a narrowly drawn approach insufficient to address the issues identified. The eventual legal instrument and its map will determine which properties are covered.
South Cambridgeshire: adjoining areas, not the whole district
The linked Cambridge HMO Article 4 proposal in South Cambridgeshire concerns areas adjoining Cambridge’s edge, explicitly including Orchard Park and Cherry Hinton. Its forward-plan entry schedules the Cabinet decision for 24th November, with a report currently expected on 16th November.
Cambridge’s newly published report also describes the intended adjoining-area proposal and says the processes could proceed together if South Cambridgeshire agrees. Shared planning officers do not remove the need for separate decisions by the two councils.
The South Cambridgeshire committee database records “All Wards” as affected by the decision. That is administrative metadata; it does not establish a district-wide Article 4 boundary. Landlords should look for the South Cambridgeshire report, proposed map and eventual Direction before drawing conclusions about a particular address.
The different Cabinet dates therefore matter. Cambridge’s October decision would not itself withdraw permitted development rights in South Cambridgeshire, and neither scheduled decision guarantees that either council will ultimately confirm a Direction.
New evidence follows Cambridge’s earlier position
The Cambridge HMO Article 4 proposal follows an earlier position that the available evidence did not justify such a restriction. In a February response reproduced in the May Full Council papers, the council said officers had examined licensing, registration and planning information for significant HMO clustering but had not found sufficient evidence to support a Direction. The earlier council response provides an important comparison with the new study.
The September report now draws on a 2026 HMO study. It estimates that Cambridge had 1,727 licensed and unlicensed HMOs in February 2026, representing around 3% of the city’s building stock. It identifies concentrations around Mill Road, Anglia Ruskin University and older terraced housing.
The findings are more nuanced than a simple claim that HMOs cause neighbourhood problems. The study found no correlation with crime or anti-social behaviour. It found some association with amenity complaints, including noise and rubbish, but other factors also correlated and a causal relationship could not be established.
The report also identifies limited evidence that HMOs are causing the loss of family dwellings. Its case places weight on housing quality, neighbouring amenity and cumulative effects, while recognising that shared housing provides comparatively affordable accommodation for students, professionals and healthcare workers.
That balance matters: officers acknowledge that stronger requirements could deter some landlords and reduce supply. The proposed planning control is intended to allow assessment of individual changes, rather than establish that every HMO is unacceptable.
Cambridge HMO Article 4 petition added public pressure
The council’s petition to introduce fair limits and control the spread of HMOs in Cambridge closed on 16th July 2026 with 593 signatures. It called for Article 4 controls and restrictions on concentrations of HMOs.
The petition is evidence of residents’ concerns, not a legal restriction or an adopted percentage cap. Its suggested concentration threshold should not be confused with a national planning rule or with the policy now proposed in the Local Plan.
How the Greater Cambridge Local Plan fits
The emerging Greater Cambridge Local Plan provides the other part of the proposed approach. Its proposed submission Policy H/MO addresses applications for houses in multiple occupation, including effects on neighbours and the quality of accommodation.
The proposed H/MO policy seeks to avoid unacceptable amenity impacts, a C3 dwelling being sandwiched between HMOs, and groups of three adjacent HMOs, while allowing assessment of exceptional circumstances on individual merits.
It also addresses space standards, shared facilities, waste storage, cycle and car parking, drying space, accessibility and management arrangements. These are proposed policy requirements, not a currently adopted new HMO regime.
Article 4 and policy perform different jobs. A Cambridge HMO Article 4 Direction could bring otherwise permitted C3-to-C4 changes into the application system. The development plan and other material considerations would then guide decisions; the emerging policy’s weight would depend on its stage and the circumstances.
What Cambridge HMO Article 4 would change for C3-to-C4 conversions
Class L(b) of Part 3 of the GPDO normally permits a change from a Class C3 dwellinghouse to a Class C4 small HMO, subject to the legislation’s limits and any existing restriction. Class C4 generally covers occupation by three to six unrelated people sharing basic amenities as their main residence.
Class L(a) covers the reverse C4-to-C3 change. A proposal to remove the C3-to-C4 right should not be read as automatically removing both directions of change. Larger HMOs generally fall outside C4 and have a different planning position.
Article 4 would require planning permission for the specified development within its boundary. It would not ban HMOs. As the Cambridge report explains: “An Article 4 Direction does not prevent the development to which it applies”.
A lawful existing C4 HMO would not automatically become unlawful merely because a Direction later took effect. Owners should retain evidence of the lawful use and check any proposed extension, intensification or other development separately.
Dated tenancy agreements, occupancy records and other contemporaneous material may help establish an existing C4 use. A licensing record can contribute evidence, but the relevant planning question is the actual lawful use, not simply whether a licence was issued. Resolve any uncertainty before relying on that use in a transaction.
Planning control also differs from HMO licensing. A licence regulates housing standards and management under a separate regime; it is not planning permission or conclusive proof of a lawful planning use. Equally, planning permission does not remove any licensing obligation.
Non-immediate Cambridge HMO Article 4 plans need a further process
The September report proposes a six-week consultation in November if Cambridge Cabinet agrees, with dates to be refined as the documents are prepared. Those are intended arrangements, not verified opening and closing dates for an active consultation.
Both councils have separate forward-plan entries for 23rd March 2027 to report consultation outcomes and consider adoption of the non-immediate Direction. That signals the intended follow-up stage, not a confirmed making, confirmation or operative date.
The report envisages the control taking effect after a one-year notice period. The exact legal timetable must be checked against the eventual notices and Direction. A non-immediate proposal leaves a period before rights are withdrawn; the upcoming Cabinet meetings are not commencement dates.
Compensation should also be treated cautiously. Liability can depend on statutory notice requirements, timing and a qualifying claim following withdrawal of permitted development rights. Calling a Direction non-immediate does not, by itself, settle every compensation question. No definitive operative timetable has yet been verified here.
What landlords, buyers and agents should watch next
The next practical checks for Cambridge HMO Article 4 are the October Cambridge decision, the November South Cambridgeshire papers and decision, and any formal consultation notice. Check the actual boundary map for an address, rather than relying on a ward label or a broad reference to Cambridge.
For a purchase or planned conversion, establish the property’s existing lawful use, the permission needed for the intended proposal, and any licensing requirements. A pending Article 4 proposal can be relevant to due diligence even before it changes the planning position.
Planning Geek’s HMO Article 4 table records the two councils as considering controls. Until the formal instruments and timetable appear, the accurate position on Cambridge HMO Article 4 remains a linked proposal with more detailed Cambridge evidence, rather than a made or operative restriction.
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