Commercial Property Development Finance: A Practical Guide

Commercial property development finance is a specialist short-term loan used to fund the ground-up construction or substantial conversion of non-residential property. Unlike a standard commercial mortgage — which finances a standing asset against its current value — development finance is drawn down in stages as construction progresses, with the loan sized against the projected gross development value (GDV) of the completed scheme.

The product covers a wide range of asset classes: offices, retail units, industrial warehouses and logistics sheds, hotels, student accommodation, care homes, and mixed-use developments combining commercial space with residential apartments. It is also used for large-scale change-of-use projects — converting a former department store into a hotel, for instance, or an office building into serviced apartments. New build schemes on brownfield or infill sites sit squarely within this product's remit.

Funding structures typically cover two elements: the land or site acquisition cost (drawn on day one) and the build cost (drawn in tranches as construction milestones are certified by a monitoring surveyor). This staged drawdown approach reduces lender risk and means interest only accrues on funds actually released, which keeps financing costs manageable across the life of the project.

For a broader introduction to how this market is structured, see our guide to how development finance works. If you are weighing development finance against a bridging loan for an early-stage acquisition, our development finance vs bridging loans comparison sets out the key differences in detail.

The short answer is yes — provided you can demonstrate four things: a viable site with planning consent (or a credible path to it), a realistic development appraisal showing a healthy profit margin, a competent professional team, and a clear exit strategy. Commercial development is open to first-time developers, experienced operators, and corporate vehicles including SPV structures, but the terms offered scale with each borrower's profile.

Specialist lenders dominate this market. Challenger banks such as Shawbrook, OakNorth, and Paragon are active alongside institutional debt funds, private credit lenders, and a layer of specialist short-term lenders. The high street rarely funds commercial development directly — where a traditional bank will engage, it tends to be on prime assets with pre-let income already in place and a long-standing banking relationship behind the deal. For the majority of commercial schemes, the route to funding runs through the specialist market.

Eligibility typically hinges on three tests. First, can the site be valued and lent against on a GDV basis? Second, do the numbers work — is there at least 20% profit on cost, a sensible contingency (usually 5–10% of build), and a credible GDV backed by comparable evidence or a formal RICS valuation? Third, is the loan-to-GDV ratio (LTGDV) within lender tolerance and is the loan-to-cost (LTC) reasonable given the developer's equity contribution? A scheme that passes these three tests will find interested lenders in the current market, even allowing for the tighter pricing environment of recent years.

Corporate borrowers — joint venture partnerships, SPVs, and trading companies — are welcomed by most specialist lenders, and personal guarantees from principal directors are standard. Overseas investors can access commercial development finance, though with additional KYC and source-of-funds documentation and typically at slightly higher rates than UK-resident borrowers.

Commercial development loans are structured around two headline ratios: loan to cost (LTC) and loan to GDV (sometimes written as LTGDV). LTC measures the loan as a proportion of total project costs — land purchase price, build costs, professional fees, and contingency. LTGDV measures it as a proportion of the completed asset's projected value. Lenders typically cap facilities at 65–70% of GDV and 80–85% of total costs, though both figures are interrelated — the more conservative cap governs in practice.

Drawdowns are released in arrears after each stage of construction is certified by an independent monitoring surveyor appointed by the lender. The surveyor visits site, confirms work has been completed to specification and programme, and authorises release of the next tranche. This process protects the lender and creates a structured payment mechanism that dovetails with most main contractor payment schedules.

Interest on commercial development loans can be structured in two ways. Rolled-up interest accumulates throughout the term and is repaid in full at exit alongside the principal. Serviced interest is paid monthly and typically attracts a slightly lower headline rate. Most developers opt for rolled-up interest on commercial schemes to preserve cashflow during the build phase — particularly important on longer programmes where contractor payments are front-loaded.

Loan terms generally run from 12 to 36 months, reflecting the longer build programmes often associated with commercial projects compared with standard residential schemes. Extensions are available from most lenders where programmes overrun, though they carry an additional fee and lenders will want to see evidence of progress before granting them. A clearly defined exit strategy — whether that is a sale of the completed asset or a refinance onto a long-term commercial investment mortgage — is a prerequisite for any formal application.

The cost of commercial development finance reflects the complexity of the asset class, the lender's risk appetite, and the borrower's track record. As a general guide, rates in the current market run from approximately 0.65% p.m. to 1.20% p.m. Larger loans, experienced developers with a demonstrable completion history, and schemes with strong pre-let evidence consistently attract the keener end of that range.

Where a senior debt facility does not provide sufficient loan to cost — common on larger commercial schemes where the developer has limited equity — mezzanine finance can bridge the gap. Mezzanine sits behind the senior lender in priority and can increase overall gearing to 85–90% LTC in aggregate. On larger institutional-scale schemes, a joint venture equity arrangement with an investment partner is another route to reducing the developer's cash contribution, though it involves giving up a share of the profit. Our guide to senior debt vs mezzanine finance explains how the two layers interact and when a stacked structure makes commercial sense.

Commercial development finance is underwritten more conservatively than residential. Lenders have a smaller pool of comparable completed sales to benchmark GDV against, exit timelines can be considerably longer, and commercial property values are more sensitive to occupier demand, yield compression, and broader economic conditions. That said, specialist lenders remain active across all major commercial asset classes and will lend where the fundamentals are demonstrably sound.

Track record carries significant weight. A developer who has successfully completed similar commercial schemes — and can evidence this with quantity surveyor reports, completion certificates, and sales or letting records — will access a wider panel of lenders and sharper pricing than someone making their first foray into the commercial sector. First-time developers are not excluded, but they will typically need a stronger equity contribution and a more experienced professional team to compensate. Our guide to development finance for first-time developers covers how to structure an application in that position.

Planning permission is a critical underwriting variable. Full planning consent unlocks the broadest lender appetite and the highest LTC ratios. Outline planning or pre-application sites carry more risk and are funded by a smaller subset of lenders at lower leverage and higher rates. Some lenders will fund land purchase before planning is secured — sometimes called a planning loan — but the terms differ materially from a consented development facility.

The professional team is scrutinised carefully. Lenders want to see an architect, structural engineer, quantity surveyor, and main contractor in place. A fixed-price or guaranteed maximum price (GMP) building contract with a contractor who has demonstrated delivery capability on comparable schemes is the standard expectation. Unfixed pricing or a developer acting as their own project manager without a relevant track record will typically prevent a formal offer from most lenders.

While both products share the same staged drawdown mechanics and GDV-based lending framework, commercial and residential development finance differ in several important respects. Understanding those differences helps you position your application correctly and approach the right lenders from the outset.

One factor unique to commercial schemes — particularly offices, retail, and industrial — is the pre-let requirement. Many lenders will require evidence of tenant interest, or heads of terms with a creditworthy occupier, before committing to a full facility. A pre-let on a long institutional lease can materially improve lender appetite and may unlock higher leverage or a keener rate. Hotels and care homes are treated differently again, with lenders often factoring in operator covenants and trading projections as part of their underwriting analysis. Industrial and logistics schemes have seen particularly strong lender appetite in recent years, reflecting structural occupier demand from e-commerce and distribution operators.

A well-prepared application moves significantly faster through credit committees than one submitted piecemeal. Lenders will expect to see a clear development appraisal showing all project costs, projected GDV, and the developer's anticipated profit margin — typically a minimum of 20% profit on cost, or 15% on GDV, is the threshold most lenders apply before committing. Build costs should be supported by a quantity surveyor's report, and GDV should be backed by a formal RICS-accredited valuation or, at minimum, a desktop appraisal from a suitably qualified surveyor.

You will also need to provide: planning documentation (consent notice, approved drawings, and any pre-commencement conditions), the building contract or proposed contractor tender, evidence of professional team appointments, a schedule of works with programme dates, and your proposed exit strategy with supporting evidence. For a refinance exit, indicative terms from a commercial investment mortgage lender are expected. For a sale exit, comparable transactions help substantiate your GDV assumption and demonstrate there is genuine market demand.

Working with an experienced broker rather than approaching lenders directly gives you access to a wider panel and allows you to structure the application in a way that matches each lender's specific credit appetite. Drawing on Matt's 25+ years arranging commercial and residential development finance for developers across the UK, Construction Capital can identify the right lender for your scheme, negotiate terms, and manage the process from initial enquiry through to first drawdown. Visit our development finance service page or contact our team directly to discuss your project.