Counter-notice, tribunal, completion and vesting order dates in one place.
Enter the date your notice was served to see every statutory deadline in the formal lease extension route.
| Step | Date | Rule |
|---|
The formal route to a lease extension under the Leasehold Reform, Housing and Urban Development Act 1993 runs on fixed time limits. This tool applies the rules in the Act and in the Leasehold Advisory Service (LEASE) guidance to the date you serve your section 42 notice:
The tool adds calendar months from the relevant date, using the last day of the month where the target month is shorter. Weekends are not adjusted, so check any deadline falling on a weekend with your solicitor.
These examples are pre-calculated with the same rules as the tool.
| Step | Date |
|---|---|
| Notice served (valuation date) | 1 Dec 2026 |
| Evidence request window ends | 22 Dec 2026 |
| Counter-notice due (earliest allowed) | 1 Feb 2027 |
| Tribunal application opens | 1 Apr 2027 |
| Tribunal application deadline | 1 Aug 2027 |
| Lease completion deadline (terms final 15 Jun 2027) | 15 Aug 2027 |
| Court order deadline if completion missed | 15 Oct 2027 |
| Step | Date |
|---|---|
| Notice served | 1 Dec 2026 |
| Counter-notice due | 1 Feb 2027 |
| Vesting order application deadline | 1 Aug 2027 |
| Stage | Window | What happens if missed |
|---|---|---|
| Counter-notice | By the date in your notice (at least 2 months) | You can apply for a vesting order within 6 months of the due date |
| Tribunal application | 2 to 6 months after the counter-notice | Risk of the notice being treated as withdrawn, so take advice at once |
| Completion | 2 months from terms agreed or final | Apply to the county court within a further 2 months |
| Evidence of title | 21 days after notice, then 21 days for you | Landlord can serve a default notice and apply to court |
Dates in the examples are illustrative. Your own deadlines depend on the dates in your notice and the counter-notice.
Sources
Related guides
The statutory windows allow about 6 to 12 months if the premium is disputed: 2 months for the counter-notice, 2 to 6 months to negotiate or apply to the tribunal, then 2 months to complete. Agreed deals can finish faster.
By the date stated in your section 42 notice. The Act requires that date to be at least 2 months after the notice.
If no counter-notice is served by the due date, you can apply for a vesting order within 6 months of that date. Take legal advice quickly because the limit is strict.
Either side can apply from 2 months after the counter-notice, and the application must be made within 6 months of it under section 48.
The date of the notice. If 80 years or fewer remain on that date, marriage value is payable, even if the lease would reach 80 years or more by completion.
This calculator was built and is maintained by Rahul Tandon, an independent web developer and researcher. It applies published statutory rules and the 5% Sportelli deferment rate, and every assumption is shown on this page. The formulas and limits are on the methodology page; see our editorial policy. LeaseVault is not a law firm, a surveying practice or a mortgage broker, and the result is an estimate for initial budgeting, not legal, financial or valuation advice.
We’ll notify you when 2024 Act provisions come into force and when new premium rates are confirmed.