How lenders assess commercial property loans: valuations, tenants and cover ratios

Residential credit assessment is largely a formula; commercial credit assessment is closer to a judgement. Two applications for the same amount against buildings on the same street can land on very different terms, because the lender is pricing the building's income, its tenants, its asset class and its resale story — not just a borrower's payslip. Understanding how that judgement is built is the difference between an application that sails and one that gets ground down at every stage. This piece goes inside the assessment mechanics; for the broader landscape — doc types, GST, the process end to end — start with our commercial property loan guide. As ever, this is general information, not advice.

The valuation: where the deal is really decided

Commercial valuations are specialist work, and they anchor everything: the lender lends against the valuation, not the contract price. Valuers typically lean on two approaches:

• Income capitalisation — the property's sustainable net income divided by a market-derived capitalisation rate. This is the workhorse for tenanted investment property, and it means the lease drives the value: if the valuer judges the passing rent to be above market, or discounts income for likely vacancy, the valuation falls even if comparable buildings sold well
• Comparable sales — recent sales of similar properties, adjusted for differences. This carries more weight for owner-occupied or vacant property, and as a cross-check on the income approach

Commercial valuations take longer and cost more than residential ones — often weeks, with the bill usually the borrower's even if the loan does not proceed — because the valuer is analysing leases, outgoings, market rents and the asset's re-letting and resale prospects, not just inspecting a dwelling. Practical consequence: have every lease, outgoings statement and recent capital-works detail complete and legible before the valuer is appointed. Gaps get filled with conservatism.

The tenancy profile: the income under the microscope

For investment property, the lender's core question is how reliable the income is. Three dimensions dominate:

• Lease length. How much term is contractually locked in, and — for multi-tenant assets — the WALE (weighted average lease expiry). Income secured for years is worth more than income expiring soon, both to the valuer and the credit team
• Tenant strength. A government agency, national brand or listed company is a stronger covenant than a young private business; bank guarantees and rental history strengthen weaker covenants. Related-party leases are scrutinised for market rent and proper documentation
• Vacancy allowance. Assessors rarely take the rent at face value — they commonly shade it or build in a vacancy and re-letting allowance, recognising that commercial vacancies run longer than residential ones and often involve incentives

Where the loan rests almost entirely on this analysis — with no financials behind it — you are in lease-doc territory, which we unpack in our guide to lease-doc lending. For owner-occupied premises, the tenancy analysis is replaced by analysis of the business itself: its financials, its stability and its capacity to pay, as covered in our guide to buying a premises for your business.

Cover ratios: the arithmetic of comfort

Commercial serviceability is usually expressed as coverage rather than surplus. Two related ideas do the work:

• Interest cover ratio (ICR) — net income divided by the interest bill. Lenders commonly want income to exceed interest with a comfortable margin, and they often test it at an interest rate above the actual rate, so the loan still covers if rates move
• Debt service cover — the same idea including principal repayments, used where the facility amortises

The thresholds vary by lender, asset type and income quality — a strong tenant on a long lease earns a thinner required margin than a specialised asset with a private tenant — so treat any specific ratio quoted online as indicative at best. What matters for your planning: the margin the lender requires, tested at a buffered rate, frequently constrains the loan size before the LVR cap does. Borrowers who back-solve from "the LVR says I can borrow X" are often surprised; the income test gets a veto.

LVR by asset type: not all buildings are equal security

Commercial LVR caps are commonly lower than residential, with no LMI to bridge the gap — and within commercial lending, gearing steps down as assets get harder to re-sell:

• Standard assets — offices, industrial units and warehouses, and well-located retail — attract the most generous commercial gearing, industrial having been particularly well-regarded in recent years
• Retail with specific risks — secondary locations or single-purpose configurations — can be treated more cautiously
• Specialised assets — childcare centres, pubs, service stations, medical facilities, purpose-built premises — take the sharpest haircuts. Their value is entangled with the business operating inside them, the buyer pool at resale is thin, and repurposing is expensive, so lenders lend a smaller share of value and look harder at the operator

Location runs through all of it: a metro industrial unit and an identical regional one can be geared differently simply because of the depth of the resale market.

Rate sensitivity, reviews and covenants

Two features of commercial lending catch residential-trained borrowers off guard.

First, interest-rate sensitivity is tested, not assumed away: because cover ratios are calculated at buffered rates, a rise in market rates can shrink what you can borrow — and on interest-only facilities, rate rises flow straight into the cover ratio during the loan, not just at approval.

Second, larger facilities often carry annual reviews and ongoing covenants — obligations that survive settlement. Common examples include maintaining a minimum ICR or maximum LVR, providing updated financials or rent rolls each year, and notifying the lender of major lease changes. A covenant breach does not automatically mean default, but it can trigger repricing, reduced limits or a requirement to reduce debt — and a market-driven valuation fall can cause a breach even when every repayment has been made on time. Read the review and covenant clauses before signing, and ask what happens on breach.

What strengthens an application

The common threads from the credit team's side of the desk:

• Complete, professionally documented leases with clear outgoings recovery, provided upfront
• A sensible gearing request — asking below the theoretical maximum signals buffer and usually earns better pricing
• Demonstrated income beyond the property, even on lease-doc, and clean conduct on existing facilities
• A realistic plan for lease expiries inside the loan term
• Time: allowing commercial timeframes for valuation and assessment rather than forcing a rushed, conservative answer

Talk it through with a broker

Commercial credit appetite differs sharply between lenders — the asset type one bank shades, another specialises in, and the spread in gearing, pricing and covenants is wider than anywhere in residential lending. You can see the range on our commercial loans page, or get in touch and we can match your property and income profile to the lenders most likely to assess it well.