DSCR (Debt Service Coverage Ratio)
Definition
DSCR measures how comfortably a property's net operating income covers its loan payments — a DSCR of 1.3 means income is 130% of debt service. Lenders set minimum DSCRs as covenants, which is why debt belongs against stabilised, predictable coliving cash flows rather than lease-up-stage buildings.
The formula
DSCR = Net operating income ÷ Total debt service
- Net operating income
- income after operating expenses, before debt service and capital costs
- Total debt service
- principal and interest payable in the same period
Worked example
A building producing £340,000 of NOI with £260,000 of annual debt service.
- 01DSCR = £340,000 ÷ £260,000 = 1.31.
- 02Now stress it: a five-point occupancy fall takes NOI to roughly £295,000.
- 03Stressed DSCR = £295,000 ÷ £260,000 = 1.13.
A ratio that looks comfortable at 1.31 sits close to a typical 1.10–1.25 covenant after a five-point occupancy move — which, on the audited evidence from adjacent sectors, is an ordinary year rather than a crisis.
Benchmark
95.2%, down from 97.5%
One year's occupancy movement at the UK's largest PBSA operator — a useful magnitude to stress a coliving DSCR against, since it happened in a mature sector with published data rather than in a downturn.
DSCR is the number a lender watches, which makes it the number worth understanding before the conversation rather than during it. Most lenders want headroom rather than a bare pass, and an operator who arrives with their own stress test — trough month, five-point occupancy fall, a rate reduction — is a materially easier credit conversation than one who arrives with a base case.
Two-to-three point occupancy movements year on year are normal in this product class. The UK's largest student accommodation operator went from 97.5% to 95.2% in a single academic year, with two decades of leasing history and new supply running well below pre-pandemic levels. A coliving model showing occupancy flat for five years has a bug rather than a plan.
Where DSCR is genuinely tight, the fastest lever is usually not revenue. It is the recurring cost line, because NOI improvement flows straight through to the ratio while a rate increase has to survive the market first.
The common mistake
Stress-testing the average instead of the trough
Annual DSCR calculated on average occupancy hides the months that actually breach. UK coliving demand thins from late May through mid-August; a building averaging 90% across the year is often running 82% in July. If your covenant is tested quarterly and your debt service is level, model the trough quarter rather than the year.
Frequently asked
What DSCR do lenders want for coliving?+
Requirements vary by lender, structure and asset. What we consistently see is that a bare pass is not the target — lenders want headroom against a stress case, and an operator who brings their own trough-month stress test is treated more seriously than one who presents an annual average.
Should DSCR use gross or net income?+
Net operating income — income after operating expenses but before debt service and capital costs. Using gross revenue produces a ratio roughly twice as flattering and one no lender will accept.
Raising capital for a coliving business
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The coliving business model, in full
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