Purpose and Legal Basis of the Deed of Certificate
Under Part 5 and Schedule 8 of the Building Safety Act 2022, Parliament enacted protections shielding qualifying residential leaseholders from the historic costs of remediating historical safety defects, including combustible cladding and external wall systems. The mechanism created to document this status is the Leaseholder Deed of Certificate.
Governed specifically by Regulation 6 of The Building Safety (Leaseholder Protections) (England) Regulations 2022 (SI 2022/859), the certificate is completed by the leaseholder under formal declaration. It provides verifiable evidence regarding whether the lease meets the statutory test set out in Section 119 of the Act as of the 'qualifying date' of 14 February 2022.
To qualify on 14 February 2022, the dwelling must have been the leaseholder's only or principal home, OR if let out, the leaseholder must not have owned more than three UK residential dwellings in total.
Why Conveyancers and Mortgage Lenders Require the Certificate
Following guidance issued by UK Finance, the Building Societies Association (BSA), and the Law Society, conveyancers handling the sale or remortgage of any leasehold flat in a relevant building (at least 11 metres high or 5 storeys) must verify remediation exposure.
Without a valid Deed of Certificate and the accompanying Landlord's Certificate, conveyancers cannot ascertain whether the flat is capped at £0 for cladding and capped at statutory thresholds (£10,000 outside London or £15,000 in Greater London) for non-cladding defects. If a lease is treated as non-qualifying, uncapped six-figure remediation bills can be demanded via service charge, threatening the lender's mortgage security.
| Document Type | Executing Party | Statutory Deadline | Consequence of Default |
|---|---|---|---|
| Leaseholder Deed of Certificate | Leaseholder / Seller | Minimum 8 weeks from landlord notice | Treated as non-qualifying lease |
| Landlord Certificate | Freeholder / Landlord | Strictly 4 weeks from request or defect notice | Landlord assumed liable; remediation liability drops to £0 |
| Lender Confirmation Form | Conveyancer / Valuer | Prior to mortgage drawdown | Mortgage advance withheld until verified |
Completing and Submitting the Deed: Step-by-Step Procedure
A leaseholder can execute a Deed of Certificate at any time, but is legally required to do so within 8 weeks if served formal notice by the freeholder under Regulation 6(3). The deed requires documentary evidence, such as Council Tax bills, electoral roll records, or utility statements establishing occupation on 14 February 2022.
When selling, the vendor's conveyancer must provide the executed deed along with all supporting annexes to the buyer's solicitor as part of standard conveyancing protocol. Once registered, this certification remains on the property's management file permanently.