A vacant unit that nobody is counting
A tenant leaves a ground floor unit in a multi-let office. The leasing agent starts marketing. Meanwhile, the council sends a business rates bill to the landlord. The unit's share of the service charge now falls on the landlord. The insurer asks about vacancy and inspection arrangements. Utilities need taking over. The building manager is asked to check the unit weekly. Each cost lands with a different person, in a different system.
Six months later, the asset manager is asked by the investment committee what the vacancy has cost so far. It takes an afternoon of asking accounts, the building manager and the rates adviser, and the answer still has gaps.
Why void costs stay hidden
Void costs are real but scattered. Some arrive as bills, some as internal charges, some as time. None of them are brought together per unit, so the cost of vacancy is felt but not seen.
| Cost | Where it arrives | Who sees it |
|---|---|---|
| Business rates | Council bill to the landlord | Accounts, sometimes a rates adviser |
| Service charge shortfall | Year-end reconciliation | Property accountant |
| Insurance conditions | Broker or insurer | Whoever handles insurance |
| Utilities | Supplier bills | Accounts |
| Inspections and security | Building manager's time or contractor | Building team |
| Marketing and agents | Agent invoices | Asset manager |
Rates reliefs and exemptions for empty property exist, but whether and when they apply is a question for your rates adviser. The tracker makes sure the question is asked with the dates in front of them.
What not seeing the cost does
Decisions about letting are made without the full picture. An incentive or rent concession that would fill the space sooner looks expensive, because the cost of waiting is not visible next to it. Insurance conditions for empty buildings, such as regular inspections, are not tracked, which is a risk if there is a claim. Rates bills are paid without anyone checking the vacancy dates. And budgets for the next year understate void costs because last year's were never totalled.
The void cost tracker we build
- When a unit becomes vacant, from a lease end, break or surrender recorded in your lease data, a void record opens automatically with the date.
- Costs are collected against the void as they arrive: rates bills and utility bills read with AI extraction and coded to the unit, the service charge share calculated from your apportionment, and contractor invoices matched by unit.
- A checklist starts for the tasks your team sets: tell the insurer, take meter readings, change locks, set up inspections, tell the rates adviser, brief the agent.
- Inspections are recorded on a mobile form with photos and the date, so any insurance condition about inspection frequency has evidence behind it.
- The running cost is shown per unit and per building, with a monthly view, beside the asking rent and marketing status.
- When the unit is let, the void record closes with its total, and the history feeds next year's budget.
Insurance conditions, rates reliefs and similar obligations are decisions and advice from your broker, rates adviser and accountant. The tracker records what they tell you and makes sure it happens.
What the asset manager can now say
When someone asks what a vacancy is costing, the answer is on screen. Letting decisions can weigh the cost of a concession against the cost of waiting another quarter. Inspections required for insurance have a record. And budgets use real void costs rather than an estimate.
For the building team, the checklist means nothing is forgotten on the day a tenant leaves: the meters are read, the keys are changed and the alarm codes are updated, with a record of who did each.
Signs your void costs are hidden
- You cannot say what an empty unit has cost to date.
- Rates bills for empty units are paid without checking dates.
- Insurance inspection requirements for empty units are not tracked.
- Service charge shortfalls from voids surprise you at year end.
- Budgets use a rough figure for voids.