Harrow HMO licence costs from £1,404 for 5 years. Properties with 5+ occupants need mandatory licensing. Avoid fines up to £30,000.
Harrow HMO Licensing: Everything Private Landlords Must Know
If you own a property in Harrow let to 5 or more people forming 2 or more households, you are legally required to hold a mandatory HMO licence under the Housing Act 2004 — and the fee starts at £1,404 for a 5-year term.
This guide covers every stage of the licensing process: what triggers the requirement, what it costs, how to apply, and what Harrow Council can do if you fail to comply.
What Triggers HMO Licensing in Harrow?
The mandatory HMO licensing threshold in England applies to any property occupied by 5 or more people from 2 or more separate households who share facilities such as a kitchen or bathroom. This has been the national standard since 1 October 2018, when the government extended mandatory licensing to all storeys — removing the previous 3-storey rule that had left many flats and low-rise conversions unregulated.
In Harrow, that national threshold applies in full. If your property meets the 5-person, 2-household test, you need a licence regardless of whether the building is a house, a flat above commercial premises, or a converted building. Properties used as houses in multiple occupation with fewer than 5 occupants may still require a licence if Harrow Council introduces or renews an Additional Licensing scheme covering smaller HMOs, so landlords with 3 or 4 tenants should monitor the council's licensing pages for any scheme updates.
Importantly, the licence is property-specific. If you own 3 qualifying HMOs in Harrow, you need 3 separate licences.
What Does an HMO Licence Cost in Harrow?
Harrow Council structures its HMO licensing fees in 2 parts, which is standard practice across London boroughs. The Part A fee covers the processing and assessment of your application and is non-refundable regardless of the outcome. The Part B fee is payable only once the licence is approved and covers the licence itself for the full 5-year term.
The combined mandatory HMO licence fee in Harrow is approximately £1,404 for a standard application. Accredited landlords — those registered with a recognised scheme such as the London Landlord Accreditation Scheme (LLAS) — may qualify for a reduced rate, with some London councils offering discounts of up to 10% to accredited applicants. You should confirm the current fee breakdown directly with Harrow's Private Sector Housing team before submitting, as councils review their fee schedules periodically.
Licences last 5 years, meaning the effective annual cost is approximately £280, before any additional costs for room inspections or compliance work required before the licence is granted.
How Do You Apply for an HMO Licence in Harrow?
Applications are submitted through Harrow Council's online licensing portal. The process involves 4 key stages: completing the online form, paying the Part A processing fee, undergoing a property inspection, and then paying the Part B licence fee upon approval.
You must nominate a licence holder — typically the owner — and a manager if a letting or managing agent is responsible for day-to-day operations. Both the licence holder and manager are subject to a fit and proper person assessment, which considers any convictions, civil penalties, or housing-related offences recorded within the last 5 years.
The council will inspect the property to verify it meets the national HMO room size standards: at least 6.51 square metres for a single adult sleeping room, and 10.22 square metres for a room used by 2 adults. Children under 10 have a lower minimum of 4.64 square metres. Any room below these thresholds cannot lawfully be used as a sleeping room, and the licence will reflect this constraint.
What Documents Do You Need?
A complete application requires the following from every landlord: a valid gas safety certificate (renewed annually), an electrical installation condition report (EICR) valid for no more than 5 years, energy performance certificate (EPC) with a minimum rating of E, fire alarm test certificate, emergency lighting certificate where applicable, and proof of planning permission or a lawful development certificate if the property was converted after 1992.
You will also need a floor plan showing room dimensions and use, a copy of your tenancy agreement template, and details of any managing agent. Missing even 1 of these at the time of submission will delay processing — Harrow, like most London councils, will not hold an application open indefinitely without a complete document pack.
What Are the Penalties for Non-Compliance?
Operating an unlicensed HMO in Harrow is a criminal offence under Section 72 of the Housing Act 2004. From 6 April 2017, councils gained the power to issue civil financial penalties of up to £30,000 per offence as an alternative to prosecution — and boroughs across London have used this power extensively.
Beyond the civil penalty, tenants in an unlicensed HMO have the right to apply to the First-tier Tribunal for a Rent Repayment Order (RRO). An RRO can require you to repay up to 12 months' rent — at current Harrow rental levels, that could easily exceed £15,000 for a standard 5-bedroom HMO. You also lose the automatic right to use a Section 21 notice to recover possession while the property remains unlicensed, which severely limits your options if a tenancy needs to end.
What This Means for Harrow Landlords
HMO licensing in Harrow is not optional, discretionary, or pending review — it is a live, enforced obligation. The combination of a 5-person threshold, a £1,404 licence fee, and a £30,000 maximum penalty for non-compliance means the financial case for prompt application is straightforward. Every month you operate without a licence is a month in which tenants can accumulate an RRO claim and enforcement officers can issue a civil penalty notice.
If your property currently meets the 5-person, 2-household test, submit your application before the next tenancy renewal. Processing times at busy London councils can run to 8–12 weeks, and a licence applied for is treated very differently by enforcement teams than a property operating with no application on file.
| Council | Licence Type | Fee (5-year) | Occupancy Threshold | Scheme Expiry | Accreditation Discount |
|---|---|---|---|---|---|
| Harrow | Mandatory | £1,404 | 5+ persons, 2+ households | Ongoing (national) | Up to 10% (LLAS) |
| Brent | Mandatory + Additional | £1,600 | 5+ (mandatory); 3+ (additional) | Additional: 2026 | 10% (LLAS) |
| Ealing | Mandatory + Additional | £1,546 | 5+ (mandatory); 3+ (additional) | Additional: 2025 | 10% (LLAS) |
| Barnet | Mandatory | £1,350 | 5+ persons, 2+ households | Ongoing (national) | 10% (LLAS) |
| Enfield | Mandatory + Selective | £1,280 | 5+ (mandatory); 3+ (additional) | Selective: 2026 | Discretionary |
| Hillingdon | Mandatory | £1,200 | 5+ persons, 2+ households | Ongoing (national) | None confirmed |
| Haringey | Mandatory + Additional | £1,740 | 5+ (mandatory); 2+ (additional) | Additional: 2025 | 10% (LLAS) |
The combined HMO licence fee in Harrow is approximately £1,404 for a 5-year term, split into a non-refundable Part A processing fee and a Part B licence fee payable on approval — roughly £280 per year.
A property needs a mandatory HMO licence in Harrow when 5 or more people from at least 2 separate households share facilities. This threshold has applied nationally since 1 October 2018 and replaced the old 3-storey rule.
Harrow Council can issue a civil financial penalty of up to £30,000 for operating an unlicensed HMO. Separately, tenants can apply for a Rent Repayment Order covering up to 12 months' rent through the First-tier Tribunal.
You need at minimum 6 documents: a gas safety certificate, an EICR (valid up to 5 years), an EPC rated E or above, a fire alarm certificate, a floor plan showing room sizes against the 6.51 sq m minimum, and a fit and proper person declaration for the licence holder and any manager.