Fitting a smart lock on a flat’s front door, or a camera pointed at a communal landing, is rarely just a DIY job for a leaseholder. Most residential leases contain an alterations clause, and whether a landlord can refuse, charge for, or ignore a request to install security equipment depends on exactly how that clause is worded.
Absolute covenant vs qualified covenant
Leases generally deal with alterations in one of two ways. An “absolute covenant” prohibits alterations outright, with no mechanism for consent at all; the landlord can refuse for any reason, or no reason, and there is no statutory override. A “qualified covenant” instead says alterations need the landlord’s consent, without saying that consent cannot be unreasonably withheld. This second type is where the Landlord and Tenant Act 1927 becomes relevant.
Section 19(2) of the 1927 Act implies a proviso into a qualified covenant against making improvements: where the alteration counts as an improvement from the tenant’s point of view, such as something that increases the value or utility of the flat, consent cannot be unreasonably withheld. A smart lock, video doorbell, or external camera fitted by a leaseholder to their own front door is capable of counting as this kind of improvement. Where the lease instead contains an absolute covenant against alterations, section 19(2) simply does not apply, and the landlord is free to refuse or to charge a premium as the price of agreeing.
What a landlord can require in return for consent
Even where consent cannot be unreasonably withheld, section 19(2) allows the landlord to attach conditions. The landlord can require payment of a reasonable sum to cover any damage to, or diminution in the value of, the property or a neighbouring property they own, and can require the leaseholder to cover the landlord’s reasonable legal and administration costs in dealing with the consent request. Where the improvement does not add value, the landlord can also require the leaseholder to agree to reinstate the original fixture, such as the original lock, if asked to at the end of the lease. None of this permits the landlord to refuse consent altogether once the covenant is qualified and the change counts as an improvement; it governs the price and conditions of saying yes, not whether they can say no.
Doors, communal areas and the boundary between them
The practical dividing line for most leaseholders is what the lease “demises,” meaning what actually belongs to the flat as opposed to what remains part of the building’s common parts. A camera or smart lock fitted to the leaseholder’s own front door, entirely within the space the lease grants them, is squarely a question of the alterations covenant. A camera mounted in a shared hallway, stairwell, or building entrance sits differently, because that space typically belongs to the freeholder or the residents’ management company rather than the individual leaseholder, and installing anything there without agreement can be treated as an unauthorised alteration to common parts rather than to the flat itself. Leaseholders wanting communal coverage are generally better placed asking the freeholder or managing agent to install block-wide CCTV than trying to install their own equipment in a shared area.
Data protection when a camera looks beyond your own door
A doorbell or landing camera that only captures a leaseholder’s own doormat raises few additional issues. One that also records a shared corridor, a neighbour’s front door, or passers-by in a communal area brings UK data protection law into play, because that recording can count as processing personal data outside the household exemption that normally covers purely domestic CCTV use. A leaseholder whose camera captures this kind of footage may need to register with the Information Commissioner’s Office as a data controller and be able to respond to a neighbour’s request to see footage of themselves, in addition to whatever the lease itself requires.
England and Wales
The Landlord and Tenant Act 1927 and the leasehold system it applies to are England and Wales law. Long residential leasehold as a form of tenure is comparatively rare in Scotland, where most owner-occupied flats are held on a different basis and alteration disputes are instead governed by the title deeds and the law of the tenement, so the section 19(2) reasonableness test does not carry across.
The bottom line
Whether a leaseholder can fit a smart lock or a camera without a fight comes down to the exact wording of the alterations clause in their lease, not to whether the change seems sensible. A qualified covenant, in England or Wales, generally means consent cannot be unreasonably withheld for a genuine improvement, though the landlord can still charge reasonable costs; an absolute covenant means there is no such right at all, and communal areas are governed by a different set of rules regardless of which covenant applies to the flat itself.