Property guardian arrangements have grown significantly in use since the 2010s as a response to rising void property costs and the growth of the professional guardian company sector. For property owners with temporarily vacant buildings (councils awaiting redevelopment; housing associations with empty stock pending refurbishment; developers between uses; commercial landlords with office-to-residential conversion pipeline), guardianship offers a cost-effective alternative to traditional security measures.
For lawyers, landlords, and property managers, the key legal question is always the same: is this a licence or a tenancy? Street v Mountford [1985] AC 809 established that if an arrangement grants exclusive possession of residential accommodation for a term at a rent, it is a tenancy — regardless of what the parties call it. Guardian companies must structure their arrangements carefully to avoid inadvertently creating protected tenancies.
The licence structure — why guardians are not tenants
The legal foundation of property guardianship is the distinction between a licence and a tenancy:
- The Street v Mountford principle: In Street v Mountford [1985] AC 809, the House of Lords held that the three hallmarks of a tenancy are: (1) exclusive possession of residential accommodation; (2) for a definite or ascertainable term; (3) at a rent. If all three are present, the arrangement is a tenancy regardless of what the parties call it. Guardian companies attempt to negate one or more of these hallmarks — typically exclusive possession — by: (a) retaining a key and exercising a genuine right of access (not just a nominal access right never exercised in practice); (b) placing multiple guardians in the building without granting exclusive possession of individual rooms (guardians share communal areas; individual rooms may be allocated but the guardian company moves guardians between rooms); (c) requiring guardians to move at short notice; (d) making clear that the arrangement is for property security, not residential accommodation
- Where guardian licences tend to fail Street v Mountford scrutiny: Courts have in some cases found that guardian arrangements amount to tenancies where: (a) guardians had exclusive possession of a self-contained flat with a lockable front door; (b) the landlord's retained key was never used in practice; (c) the arrangement continued indefinitely (years, not months); (d) the guardian paid a monthly 'licence fee' that was effectively equivalent to market rent; (e) the building was fundamentally residential (unused residential flats) rather than commercial. The more the guardian arrangement looks like a BTL tenancy with a different label, the greater the risk of re-characterisation. Guardian companies in converted commercial buildings (offices, warehouses, industrial units) face lower risk of re-characterisation than those in standard residential blocks
- Practical licence structure — what guardian companies do: Well-structured guardian arrangements typically include: (a) the property owner grants a non-exclusive licence to the guardian company — the guardian company has a right to occupy the building and introduce guardians, but does not have exclusive possession of any specific part; (b) the guardian company grants individual guardians licences to occupy specific areas — but retains a genuine right of access, can move guardians between areas, and does not grant exclusive possession; (c) guardians are required to perform a security function (walk the property at specified intervals; report incidents; ensure the building is secure); (d) the guardian agreement is expressed as a licence for the purposes of property security, not accommodation; (e) the agreement can be terminated on short notice (typically 28 days) without court proceedings
- Termination of a genuine licence: A genuine property guardian licence can be terminated by giving notice in accordance with the licence agreement — typically 28 days. No court order is required; no Section 8 or Section 21 notice is needed. If the guardian refuses to vacate after the notice period expires, the property owner can apply to the county court for an order for possession — but as the guardian is a licensee (not a tenant), the court proceedings are typically quicker and less complex than possession proceedings for an AST. If the guardian has been re-characterised as a tenant, however, the landlord must use Section 8 grounds and follow all Housing Act 1988 and RRA 2025 formalities
ANUK Guardian Code of Practice — minimum standards
The ANUK Guardian Code of Practice is a voluntary code for property guardian companies:
- What the ANUK Code requires: The Association of National Guardians (UK) (ANUK) maintains a Guardian Code of Practice to which member companies subscribe. Key requirements include: (a) Minimum habitability standards for guardian accommodation: adequate heating; hot and cold water; working kitchen and bathroom; smoke alarms; CO detectors where fixed combustion appliances present; minimum room sizes (typically 6.5 sq m single room, 10 sq m double room — though these are softer than the statutory HMO minimum room sizes in England); (b) Notice period: minimum 28 days' notice to vacate, with ANUK recommending a minimum of 4 weeks regardless of the licence agreement wording; (c) Guardian vetting: ANUK members must vet guardians (Right to Work checks; criminal records check; references); (d) Guardian agreement: written licence agreement provided before guardian moves in, clearly stating licence (not tenancy) status; fees; notice requirements; guardian duties; rules for property use
- Which companies subscribe to the ANUK Code: Not all property guardian companies are ANUK members. Before entering a guardian arrangement, property owners should check whether the company is an ANUK member and, if not, whether their arrangement meets equivalent standards. Non-member companies may offer lower licence fees but provide fewer protections for either the property owner or the guardians themselves
- Local authority scrutiny of guardian arrangements: Several local housing authorities have challenged property guardian schemes in their areas, arguing that guardian accommodation fails to meet minimum habitation standards or that the licence arrangement is a disguised tenancy. Some councils have served improvement notices and emergency prohibition orders on buildings used for guardianship. Property owners should obtain legal advice before entering a guardian arrangement for residential accommodation — the regulatory landscape is evolving and some jurisdictions are more hostile to guardianship than others
- Business rates and guardian arrangements: One frequently cited benefit of property guardianship is the potential for business rates relief. Empty commercial properties are generally exempt from business rates for 3 months (or 6 months for industrial properties) and then charged at the full rate. If guardians are occupying the property, it may be treated as 'occupied' for rates purposes (depending on the nature of the occupation) — potentially qualifying for lower rates. However, the position is complex: councils may dispute the nature of the occupation; the guardian company's licence fee may not be commercially meaningful enough to constitute true occupation for rates purposes. Property owners should obtain specialist rates advice before using guardianship as a rates mitigation strategy
Property owner duties — Occupiers' Liability and insurance
Property owners owe duties to guardians as occupiers of premises:
- Occupiers' Liability Act 1957 — duty to lawful visitors: Guardians who enter the property under a licence are lawful visitors for the purposes of the Occupiers' Liability Act 1957. The property owner (occupier) owes a common duty of care to take such care as is reasonable to ensure the visitor is reasonably safe in using the premises for the purpose for which they are invited or permitted to be there. Where the guardian is an adult, this duty is somewhat modified by the guardian's own awareness of risks (volenti non fit injuria) — but the property owner cannot completely exclude liability for personal injury caused by negligence. If a guardian is injured by a defect in the building (a falling ceiling; faulty wiring; unsafe stairs), the property owner may face an Occupiers' Liability claim. Pre-guardianship structural and hazard inspection is strongly recommended
- Gas and electrical safety in guardian properties: Although guardians are not tenants and the Landlord and Gas Safety Regulations 1998 and the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 technically apply to tenancies rather than guardian licences, practical and legal prudence requires property owners to ensure: (a) any gas appliances in the building are safe and serviced by a Gas Safe registered engineer; (b) the electrical installation is safe (EICR is best practice before guardian occupation begins); (c) smoke alarms and CO detectors are fitted and functional. The duty of care under the Occupiers' Liability Act 1957 effectively requires the property owner to ensure the building is reasonably safe — these checks are the minimum for discharging that duty
- Insurance — notification to insurer is essential: Property owners must notify their buildings insurance provider before placing guardians in the property. Key issues: (a) Change of use — a commercial building being used for residential guardianship represents a change of occupancy use. Failure to notify may void the policy; (b) Increase in risk — a building previously empty (and therefore insured as an unoccupied building) is now occupied (which is generally a lower risk for insurers, but the change of use must still be disclosed); (c) Guardian-specific endorsements — some insurers offer endorsements specifically for guardian arrangements; others require the guardian company's own liability insurance to be in place before they will cover the building. Property owners should obtain written confirmation from their insurer that the policy remains valid after guardian occupation commences
- Fire safety obligations in guardian buildings: Guardian buildings — particularly large commercial buildings converted for guardian occupation — are subject to the Regulatory Reform (Fire Safety) Order 2005 (FSO 2005). The property owner is the 'responsible person' for FSO 2005 purposes and must carry out a written fire risk assessment of the building, implement any required fire safety measures (escape routes; fire alarm; extinguishers; fire doors; emergency lighting), and ensure the assessment is reviewed when there is a material change (such as the building being occupied by guardians). For high-rise buildings (over 18m), additional requirements under the Building Safety Act 2022 apply
Comparison with BTL letting — when guardianship makes sense
Property guardianship is not a substitute for conventional BTL letting but serves a specific niche:
- When guardianship is appropriate: Property guardianship suits: (a) large commercial buildings (former offices, schools, hospitals, warehouses) that are difficult to convert to residential use immediately but need to be kept secure and maintained; (b) residential properties awaiting planning approval for redevelopment — guardians keep the property secure during the planning/pre-construction phase; (c) properties with short-term vacancy (6-24 months) where a full BTL tenancy (with its associated tenancy security) would be inconvenient; (d) properties in locations where conventional letting is difficult (industrial areas; properties with unusual layout). Guardianship is rarely appropriate for standard residential properties (terraced houses, flats) where the risk of re-characterisation as a tenancy is highest
- Why guardianship is not a substitute for BTL letting: For a landlord with a standard residential property, conventional BTL letting is almost always preferable to guardianship: (a) BTL tenants pay market rent; guardians pay sub-market 'licence fees' (typically 30-60% of market rent, reflecting the security function they perform); (b) BTL tenants have security of tenure rights — but this also means they are stable, paying occupants; guardians are transient and may need to vacate at short notice; (c) BTL tenants are easier to reference and credit-check; guardian companies do their own vetting which may be less rigorous; (d) BTL tenants provide regular rental income with reliable contractual basis; guardian income is lower and contractually different. Only in the specific scenario of temporary vacancy does guardianship make financial sense for a residential property owner
- Post-guardianship tenanting: After the guardian arrangement ends and the property owner is ready to let the property conventionally, the property must be vacated and re-inspected before marketing. Any works required to bring the property to BTL standard should be identified and carried out. Guardians may have caused damage to the property (even inadvertently) and the guardian company should have a damage deposit or insurance mechanism to cover this. Property owners should carry out a full check-out inspection immediately after guardian vacation, before any remediation works are done
Frequently asked questions
Is a property guardian a tenant?+
No — if the arrangement is correctly structured as a licence, a property guardian is a licensee, not a tenant. The Housing Act 1988 does not apply; there is no security of tenure; and the arrangement can be terminated by notice (typically 28 days) without court proceedings. However, if the arrangement has the hallmarks of a tenancy (exclusive possession of a self-contained unit; nominal landlord access only; indefinite term; market-rate payment), courts can re-characterise the licence as a tenancy under the Street v Mountford [1985] principle.
How much notice does a property guardian need to vacate?+
Typically 28 days under the licence agreement. The ANUK Guardian Code of Practice recommends a minimum of 4 weeks' notice. No court order or Section 8/21 process is required for a genuine licence — the notice under the agreement is sufficient. If a guardian refuses to vacate after the notice period, the property owner can apply to the county court for possession, but as a licensee the process is simpler than an AST possession claim.
Does the ANUK Code of Practice apply to all guardian companies?+
No — the ANUK Guardian Code of Practice is voluntary. Not all property guardian companies are ANUK members. Property owners should check whether the company they use subscribes to the ANUK Code or an equivalent standard before entering a guardian arrangement. Non-member companies may offer lower fees but provide fewer protections on minimum habitability standards, vetting, and notice periods.
Do I need to tell my insurer about property guardians?+
Yes — always notify your insurer before placing guardians in the property. Guardian occupation represents a change of use (particularly for commercial buildings) that must be disclosed. Failure to notify may void the policy. Some insurers offer guardian-specific endorsements; others require the guardian company's own liability insurance to be in place. Obtain written confirmation from your insurer that the policy remains valid after guardian occupation begins.
- Lodger arrangements — resident landlord exemption and licence vs tenancy →
- Resident landlord exemption — excluded licences and tenancies →
- Licence revocation — HMO and selective licensing appeals →
- Buildings insurance — landlord coverage, claims, and change of use notification →
- Fire risk assessment — Regulatory Reform (Fire Safety) Order 2005 obligations →
- Illegal eviction — Protection from Eviction Act 1977 risks →