HMO compliance — London
HMO Compliance London
Licensed HMOs carry a heavier compliance load than a standard tenancy: mandatory licensing conditions, borough-specific additional and selective schemes, annual gas safety checks, EICR testing, mains-interlinked fire alarms and a Legionella risk assessment, all sitting alongside the Management of Houses in Multiple Occupation (England) Regulations 2006. We coordinate the full certificate bundle for London HMO landlords and agents so nothing lapses before a renewal or inspection.
5+
Occupants from 2+ households that trigger mandatory HMO licensing nationally
33
London boroughs, each running its own additional or selective licensing rules
6.51 m²
Minimum bedroom floor area for one adult under standard licence conditions
5 years
Typical mandatory HMO licence term before renewal is required
On this page
What HMO compliance actually involves for a London landlord
A House in Multiple Occupation is, broadly, a property let to three or more tenants forming two or more separate households who share a kitchen, bathroom or toilet. Mandatory licensing applies nationally to larger HMOs — five or more occupants forming two or more households — regardless of how many storeys the building has, since the old three-storey threshold was removed in 2018. That change caught a large number of London conversions, bedsits and flats above shops that landlords had previously assumed sat outside licensing altogether, simply because the building was only two storeys.
On top of the mandatory national scheme, individual London boroughs run their own additional licensing (extending licensing to smaller HMOs, typically three or four occupants from two or more households) and selective licensing (covering any privately rented property in a designated area, HMO or not). These schemes are set locally, cover different streets or wards, carry different conditions, and expire and get renewed on their own timetables. A property that is fully compliant in Camden can be unlicensed the moment the same landlord lets a similar flat in Newham or Croydon. There is no substitute for checking the specific council's current licensing register and designated areas before assuming a property is covered, or exempt.
Underneath the licence sits a bundle of recurring duties that apply regardless of which scheme covers the property: an annual Gas Safety Certificate for every gas appliance, an EICR (Electrical Installation Condition Report), which for HMOs is often required at intervals shorter than the standard five years by the licence conditions themselves, mains-wired interlinked smoke and heat alarms with emergency lighting where the layout requires it, a Legionella risk assessment, and compliance with the Management of Houses in Multiple Occupation (England) Regulations 2006, which covers means of escape, structural safety, water and drainage, waste disposal, common parts, and minimum room and amenity standards. This page is about coordinating that whole bundle, not any single certificate in isolation.
Scope of work
What we coordinate for HMO compliance
An HMO licence is only as good as the paperwork behind it. We schedule and carry out the recurring safety work a licensed or soon-to-be-licensed HMO needs, and assemble it into a pack a council officer can check in minutes.
Annual gas safety certification
A Gas Safe registered engineer tests every gas appliance in the property — boiler, hob, fire — and issues the annual Gas Safety Record required for rented accommodation. For HMOs with shared kitchens, every appliance used by any tenant is included, not just those in individual rooms.
EICR at licence-appropriate intervals
We test the full electrical installation and issue an EICR. Many London licensing conditions require this more frequently than the standard five-year domestic interval, particularly for larger or higher-risk HMOs, so we check the specific licence conditions rather than assuming the default period applies.
Fire detection and emergency lighting
Mains-wired, interlinked smoke and heat alarms fitted to BS 5839-6, with emergency lighting added where the escape route or the number of storeys requires it. We match the alarm grade (LD2, LD3 etc.) to what the specific property's risk assessment and licence conditions call for.
Legionella risk assessment
A written assessment of the property's hot and cold water system — tanks, cylinders, pipework and outlets — identifying any control measures needed. See our dedicated Legionella risk assessment page for the detail; here it is scheduled as part of the wider compliance visit.
Management Regulations compliance items
Practical work required under the Management of HMO Regulations 2006: maintaining means of escape clear of obstruction, keeping common parts and shared kitchen/bathroom facilities in good repair, ensuring adequate waste storage and disposal arrangements, and general structural and water supply upkeep.
Licence application and renewal documentation
Room measurement against amenity standards, photographic evidence of fire precautions, and a certificate pack formatted the way most London council licensing teams expect it, whether you are applying for a first licence, renewing one, or responding to a council compliance visit.
When to act
Who needs HMO compliance support, and when
HMO duties are often missed not through negligence but through genuine uncertainty about whether a scheme applies. The following situations are where we are asked to step in most often.
Letting to three or more unrelated tenants
Who needs this: anyone letting a property to three or more tenants from two or more households sharing kitchen or bathroom facilities meets the general definition of an HMO, even if it falls under the licensable threshold. Understanding which regime applies is the first step, and it is worth getting right before advertising the room.
Buying or inheriting an existing HMO
When it applies: an HMO licence is not transferable between landlords. A new owner must apply in their own name even if the previous owner held a valid licence, and the property must still meet current conditions, not the conditions in force when it was last licensed.
Licence renewal approaching
When it applies: mandatory licences typically run for up to five years. Renewal is not automatic, and councils increasingly ask for updated certificates (gas, EICR, fire alarm test records) as part of the renewal application rather than accepting whatever was submitted last time.
Your borough introduces a new selective or additional scheme
What's commonly found: landlords letting a single, ordinary flat discover their borough has introduced selective licensing covering their street, bringing an otherwise unlicensable property into scope. This is one of the most common compliance gaps we see, simply because the scheme is newer than the tenancy.
Converted properties and bedsits above shops
What's commonly found: two-storey conversions and flats above commercial units that were historically assumed to be exempt from licensing because of the old storeys rule, and have never been assessed against the current five-occupants/two-households threshold.
Portfolio landlords across multiple boroughs
Who needs this: landlords with HMOs in several boroughs, where licence conditions, room-size standards and renewal dates differ property to property, benefit most from a single coordinated compliance schedule rather than tracking each certificate independently.
How it works
How we handle HMO compliance, step by step
Whether you are applying for a first licence or keeping an existing one current, the sequence below keeps every certificate aligned to the same property and the same renewal date.
01
Compliance audit
We review the property against the mandatory HMO definition and the specific borough's additional and selective licensing designations, and check what certificates are already in date, expired, or missing entirely.
02
Licence and scheme check
We confirm exactly which licensing scheme (or schemes) apply to the property's address, what conditions that specific council attaches, and what evidence the council expects to see at application or renewal.
03
Certificate scheduling
Gas safety, EICR and Legionella risk assessment visits are booked together where practical, reducing the number of separate call-outs and keeping renewal dates aligned instead of scattered across the calendar.
04
Fire safety and alarm work
Interlinked smoke and heat alarms are installed, tested or upgraded to the grade required, and emergency lighting is added where the escape route requires it. Test records are logged and dated.
05
Documentation pack assembly
All certificates, room measurements and photographic evidence are assembled into a single pack in the format the relevant council's licensing team typically requests, ready to submit or to produce at an inspection.
06
Renewal reminders
We track expiry dates for every certificate and the licence itself, and get in touch ahead of each renewal so nothing lapses between council inspections — the most common reason landlords end up in breach.
Buyer guide
Choosing a legitimate HMO compliance provider (and avoiding overcharging)
HMO compliance work attracts a mix of specialists and generalists charging very different rates for the same certificates. These checks help you separate a provider who genuinely understands licensing conditions from one selling an inflated "HMO package".
Check individual trade registrations, not just a company name
Ask specifically who is Gas Safe registered and who holds electrical competent-person registration (NICEIC, NAPIT or similar). A company can market itself as an "HMO compliance specialist" without every engineer on the job holding the relevant qualification — ask for the registration numbers directly.
Ask for an itemised quote per certificate
A legitimate quote separates the gas safety visit, the EICR, the Legionella assessment and any fire alarm work into distinct line items with their own price. Be wary of a single bundled "HMO compliance fee" that makes it hard to see what any one certificate actually costs.
Watch for inflated "HMO premium" pricing
Some contractors charge substantially more purely because the word "HMO" appears on the job, even where the actual work (one boiler, a handful of sockets) is no different from a standard rental. Compare the itemised price against equivalent single-let pricing before accepting a quote.
Combine visits to reduce call-out costs
Gas safety, EICR and Legionella risk assessment can usually be scheduled on the same visit or the same week. Ask whether a provider will coordinate this for you — separate call-outs for each certificate, each with its own visit fee, add unnecessary cost over a portfolio.
Confirm who submits documents to the council
Some providers will upload certificates directly to the council's licensing portal on your behalf; others hand you a folder and leave the submission to you. Neither is wrong, but agree upfront which one you are paying for, since chasing a provider for documents at the renewal deadline is a common friction point.
Treat "guaranteed pass" language as a red flag
No competent inspector can promise a property will pass an EICR or a licensing visit before looking at it. A provider who guarantees a result before inspection is either underselling the check or planning to cut corners on the report — get the assessment done properly and fix what it actually finds.
2025 pricing
HMO compliance costs in London (2025)
The following are indicative 2025 London price ranges for the certificates and work that make up a typical HMO compliance bundle. Actual costs depend on the number of gas appliances, the size of the electrical installation, and how many rooms and storeys the property has.
| Job | Detail | Price range (2025) |
|---|---|---|
| Gas Safety Certificate (HMO) | All appliances, shared kitchen included | £90 – £150 |
| EICR (HMO) | Full installation test and report | £180 – £400 |
| Legionella risk assessment | Written report, all outlets and tanks | £150 – £300 |
| Interlinked fire alarm system | Supply and install, per bedroom property | £400 – £1,200 |
| Emergency lighting (where required) | Escape route coverage, larger HMOs | £250 – £600 |
| Full compliance pack coordination | Scheduling, documentation, council-ready pack | £100 – £250 |
Booking the gas safety, EICR and Legionella visits together typically saves one or two separate call-out fees compared with arranging each certificate with a different contractor. Fire alarm and emergency lighting costs vary considerably with the number of bedrooms and existing wiring, so we always confirm a fixed price after seeing the property rather than quoting blind.
Get started
HMO Compliance London — get a clear quote
Tell us about the property and the job. A qualified engineer confirms the scope, agrees a price before work starts, and issues the correct certificate on completion. All 33 London boroughs covered.
Common questions
HMO Compliance London: frequently asked
What actually counts as an HMO?
A property is generally an HMO if it is let to three or more tenants who form two or more separate households and who share a kitchen, bathroom or toilet. Mandatory licensing then applies to larger HMOs specifically — five or more occupants forming two or more households — regardless of the number of storeys in the building, since the old rule limiting mandatory licensing to three-storey properties was removed in 2018. Smaller HMOs below that threshold can still fall under a borough's additional licensing scheme, so the property's status depends on both the national definition and the local council's rules.
Does every London borough license HMOs in the same way?
No. Mandatory licensing for larger HMOs applies nationally on the same basic terms, but many London boroughs also run additional licensing (covering smaller HMOs) and selective licensing (covering any privately rented property in a designated area, whether or not it is an HMO). Each scheme is set by the individual council, covers different streets or wards, and has its own conditions and renewal dates. A property compliant in one borough may be unlicensed if the same landlord lets a similar property in a different borough, so the specific council's current licensing pages should always be checked directly.
How often does an HMO need an EICR?
The general legal minimum for rented electrical installations is five years, but HMO licence conditions frequently require testing more often than this, particularly for larger or higher-risk properties, and some councils ask for an updated EICR at every licence renewal regardless of when the last one was issued. Because this varies by borough and by licence, we check the specific conditions attached to a property's licence rather than assuming the standard five-year interval applies.
Do I need a Legionella risk assessment for my HMO?
Yes. Landlords have a general duty to assess and control the risk from Legionella bacteria in a property's water system, and this applies to HMOs as it does to any rented property, with the added complexity that HMOs often have multiple bathrooms, some used more rarely than others, which can increase risk if not managed. It is a written risk assessment rather than an annual "certificate", and should be reviewed periodically or when the property or its occupancy changes significantly. Our separate Legionella risk assessment page covers this duty in full.
What happens if I operate an unlicensed HMO?
Operating a licensable HMO without the required licence is a criminal offence and can result in a fine, and in some cases tenants can apply for a Rent Repayment Order requiring the landlord to repay rent received during the unlicensed period. Councils have also become more active in identifying unlicensed HMOs through targeted enforcement, particularly in boroughs running additional or selective schemes. If you are unsure whether a property needs a licence, it is worth checking before letting it rather than after a council inspection raises the question.
Can I transfer an HMO licence when I buy a property?
No. An HMO licence is granted to a specific person (or company) as the licence holder, not to the property itself, and it does not transfer automatically on sale. A new owner must apply for their own licence, and the property must meet whatever conditions are current at the time of that application, which may be stricter than when the previous licence was granted. This is worth factoring into the timeline and cost of buying an HMO, since the property may need remedial work before a new licence is approved.
What fire safety measures does the Management of HMO Regulations require?
The Management of Houses in Multiple Occupation (England) Regulations 2006 require the person managing the HMO to keep escape routes free of obstruction and in good repair, maintain fire-fighting equipment and alarms in working order, and generally ensure the property does not present unnecessary fire risk. In practice this is usually delivered through mains-wired, interlinked smoke and heat alarms and, in larger or more complex HMOs, emergency lighting along escape routes — the specific alarm grade and coverage should match the property's individual risk assessment and licence conditions.
Can HMO compliance visits be combined to save cost?
Yes, and it is usually the most cost-effective way to manage a licensed HMO. Gas safety checks, EICR testing and Legionella risk assessments can typically be scheduled on the same visit or within the same week, which reduces the number of separate call-out fees compared with booking each certificate with a different contractor at a different time. For portfolio landlords managing several HMOs, aligning renewal dates across a property or portfolio makes this scheduling considerably easier from one year to the next.