Portfolio modelling: open-market exposure vs RPI-floor exposure across 80 leases. Senior leadership gets a single P&L sensitivity number.
Open-Market, RPI, Fixed: Read Once, Watched Forever.
Every review surfaced with its mechanism, date and notice period, so the negotiation starts when it should, not when the demand lands.
Mechanism, cap, collar.

Negotiation starts before the trigger letter.
A 12-month notice period means starting prep at 14 months. We surface the runway so leadership signs off the position before the landlord serves.
- T − 14 monthsPosition drafted
Comparables gathered, P&L sensitivity modelled, internal sign-off requested.
- T − 12 monthsNotice period opens
Lease's contractual notice window opens. The landlord can trigger from this point.
- T − 3 monthsSurveyor briefed
Independent surveyor brief issued, evidence pack pre-staged.
- T = 0Review date
Reviewed rent agreed and recorded. Evidence + comparables stored against the review for the next cycle.
Every reviewed rent, written atomically.
When the new rent is agreed, the change lands in the audit log with the supporting comparables attached. The next review starts with the trail intact.

Every review, every mechanism.
Mechanism classified
Open-market, RPI-linked, CPI-linked, fixed uplift, hybrid (collared/capped). Each review tagged with its mechanism for portfolio-level analytics.
Review dates
Pulled from both the rent schedule and any explicit review clause. We cross-check the two and flag inconsistencies for human review.
Caps & collars
Floor / ceiling captured as numbers. Useful for portfolio modelling: what's the cap exposure across 200 leases at +20% inflation?
Pre-review workflow
12-month notice period? We warn 14 months out so your negotiating position is prepared before the trigger letter lands.
Post-review evidence
Reviewed rent, agreement date, supporting comparables, uploaded against the review so future reviews benefit from the trail.
Tenant + landlord views
Tenant: 'how much could this go up?'. Landlord: 'how much can I push?'. Same data, two dashboards.
Anyone who'd rather not be surprised by a rent demand.
The rent review you forgot about is the one that costs the most.
Review pipeline visible 24 months out so surveyor capacity is booked before peak. Comparable evidence pre-staged per review.
Academy peppercorn rents with reviewable elements still need watching. We surface the reviewable element, not the cover-sheet number.
Open-market exposure is a different valuation question than RPI exposure. Portfolio split by mechanism shows in one query.
Other Lease Topics.
Rent Reviews Don't Reward Forgetting.
14-day Pro trial. No card. Lease parsing on every paid tier.