Build to rent investment finance

Lending criteria and what funders look for

Investment lenders underwrite a stabilised, income-producing asset on proven income. Their lending criteria centre on a settled rent roll: they want to see the stabilised net operating income after voids, bad debt and operating costs, the occupancy, which CBRE put at around 97 percent for stabilised UK multifamily in September 2025, and the rental growth supporting the income, which Knight Frank recorded at around 4 percent across the UK private rented sector for the year. They size the loan so the net operating income covers the debt service with headroom, testing the debt service coverage ratio, typically around 1.3 to 1.5 times, and the interest cover ratio. They assess the quality of the building, the operating model and who manages the scheme, because a well-run asset with low voids and controlled costs is a more durable income stream than one with weak management. The net initial yield underpins the value: Knight Frank put Tier 1 regional city prime multifamily at around 4.50 percent in September 2025, and a keener yield supports a higher value and so a larger loan at the same loan to value. A regulated owner-occupier element, where it arises, is referred to an appropriately authorised firm. We assemble the income story, the operating record and the value evidence so the lender sees the asset as the durable, income-producing investment it is.

How much you can borrow

Build to rent investment finance runs to around 55 to 65 percent of value, but the binding constraint is usually the debt service cover on net operating income rather than loan to value alone. Lenders size the loan so the income covers the debt service at a debt service coverage ratio of around 1.3 to 1.5 times, with headroom, so a scheme producing a strong, stable net operating income supports more debt than the same asset at a weaker rent roll. The value the loan to value applies to is set by the net operating income capitalised at an investment yield, so the yield drives the number: Knight Frank put Greater London prime multifamily at around 4.25 percent and Tier 1 regional cities at around 4.50 percent in September 2025, and a keener yield lifts the value and so the loan on the same income. Occupancy and rental growth feed the income directly: CBRE put stabilised UK multifamily occupancy at around 97 percent in September 2025, and Knight Frank forecasts cumulative UK private-rented-sector rental growth of around 18.8 percent over 2025 to 2030, which supports a lender's confidence in the income over the term. We model the net operating income, the DSCR, the yield and the loan to value together, so the figure we quote is grounded in the income the asset actually produces, not a headline percentage of value.

Rates and costs

Build to rent investment finance is the keenest pricing in the BTR finance family, because the asset is built, let and income-producing rather than under construction, indicatively a margin over SONIA that prices well inside development finance, set by the loan to value, the debt service cover, the term and the quality of the income. The facility can be interest-only or part-amortising; an interest-only structure carries a lower monthly cost and supports a slightly larger loan on the same cover, while part-amortisation reduces the debt over the term and de-risks the next refinance. Expect a lender arrangement fee of around 1 to 2 percent, a valuation on the income and yield, legal fees for both sides, and on a refinance any early repayment charge on the facility being redeemed. The choice between a fixed rate and a margin over SONIA is a genuine decision: a fix gives certainty of cost but usually carries an early repayment charge, while a variable margin moves with rates and is easier to exit. We disclose our broker fee in writing, compare the all-in cost across the market including the impact of any early repayment charge on a future refinance, and never claim an exclusive tie to any lender.

Investment finance, development exit or development finance

Build to rent investment finance is the right product when the scheme is built, let and producing a stabilised net operating income, and you want long-term debt to hold it. It is the cheapest debt in the scheme's life and the destination of every other facility. If the scheme is built but still leasing up, a development exit facility is usually the right step first, because it repays the development finance quickly and carries the scheme through lease-up at a lower rate, then investment finance refinances it once the rent roll stabilises. If the scheme is still under construction, development finance funds the build, and investment finance only fits once the asset is income-producing. We position the asset on that path and arrange the investment facility as the long-term home for the debt once the income is proven.