A viable site, a credible borrower, and a strong end-product are no longer enough to guarantee funding. Across the market, genuinely good schemes are stalling at the finance stage, not because the projects are flawed, but because the UK development finance landscape has become more selective, more expensive, and more complex than it was just a few years ago. Understanding why is the first step to getting funded.

This guide explains how UK development finance works today, the 7 reasons good projects still struggle to secure it, and how TMP Real Estate helps developers structure and place the funding their schemes deserve.

"The money is there, but it is pricing risk far more carefully than before. The developers who get funded are the ones who present a lender-ready proposition, not just a good idea."

How UK Development Finance Works Today

UK development finance is short-to-medium-term funding used to acquire a site and cover construction costs through to completion and sale or refinance. It is typically structured in layers, senior debt, stretched senior, and mezzanine, often topped up with equity. The market now spans a wide range of providers, each with different appetites:

  • High-street and clearing banks: lower cost but conservative on leverage and experience.
  • Challenger banks: more flexible, competitively priced for the right deal.
  • Debt funds and specialist lenders: higher leverage, faster, at a higher cost.
  • Private and family-office capital: bespoke, relationship-led funding.

Because the right lender for one scheme is the wrong lender for another, navigating UK development finance is as much about matching a project to the correct capital source as it is about the headline rate. For the wider context on structuring capital, see our guide to debt and equity opportunities.

7 Reasons Good Projects Still Struggle With UK Development Finance

Higher Interest Rates Have Reset UK Development Finance Pricing

The Cost of Capital Has Changed

The single biggest shift in UK development finance has been the cost of money. As the Bank of England base rate rose from the near-zero levels of the last decade, the all-in cost of senior and mezzanine debt climbed with it, squeezing the margins that make schemes viable.

Projects appraised on the cheap debt of a few years ago no longer stack up at today's rates. Lenders now stress-test deals against higher finance costs, and schemes that cannot absorb that pressure are declined, even when the underlying fundamentals are sound.

Tighter Loan-to-Value and Loan-to-Cost Ratios

Lenders Are Lending Less Against the Same Scheme

In a more cautious market, lenders have reduced the proportion of cost and value they are willing to fund. Where a scheme might once have secured 65% loan-to-value senior debt, it may now be offered 55%, leaving a larger equity gap for the developer to fill.

This tightening of UK development finance ratios catches out developers who have budgeted for higher leverage. The project itself has not changed, but the amount of debt available against it has, and bridging that gap is often where good schemes stall.

Build Cost Inflation Erodes Viability

When the Numbers Stop Stacking Up

Construction cost inflation, in materials, labour, and energy, has pushed up build budgets across the UK. Lenders scrutinise cost plans closely and apply generous contingencies, so a scheme whose build costs have risen faster than its end values will struggle to attract UK development finance.

Developers who have not revisited their appraisals against current tender prices often find a lender's quantity surveyor arrives at very different numbers. A credible, up-to-date cost plan is now essential to a fundable proposition.

Planning Risk Makes Lenders Nervous

Consent Uncertainty Deters Capital

Lenders dislike planning risk, and a scheme without a robust, implementable consent is far harder to fund. Delays, conditions, and policy uncertainty under the National Planning Policy Framework all add risk that lenders price in, or avoid entirely.

A clear planning position, supported by proper advice, materially improves access to UK development finance. Our Planning & Consultancy team helps developers present a de-risked planning case that lenders can underwrite with confidence.

Weak or Unproven Track Record

Lenders Back People as Much as Projects

UK development finance is a relationship business, and lenders back developers as much as schemes. A limited or unproven track record, particularly for a larger or more complex project than a developer has delivered before, raises the perceived risk and narrows the pool of willing lenders.

First-time and scaling developers can overcome this, but it requires the right presentation, the right professional team, and often the right funding partner. Demonstrating capability and a credible delivery plan is as important as the numbers.

An Incomplete or Poorly Presented Proposal

Why Good Deals Get Overlooked

Lenders receive far more proposals than they can fund, and a poorly packaged application is quickly set aside. Missing cost plans, vague exit strategies, and incomplete due diligence signal risk and slow decisions, causing good projects to lose out to better-presented ones.

A lender-ready proposal, with a clear appraisal, robust costings, a defined exit, and a credible team, dramatically improves both the likelihood and the terms of UK development finance. Presentation is not a formality; it is a decisive factor.

Approaching the Wrong Lenders

A Good Scheme With the Wrong Capital

Perhaps the most avoidable reason good projects struggle is approaching lenders whose appetite does not fit the deal. A scheme needing 70% loan-to-cost will be declined by a conservative bank but welcomed by a debt fund, and a developer who only approaches the former concludes, wrongly, that the project is unfundable.

Accessing the whole market, and matching each scheme to the lenders most likely to back it, is where specialist advice pays for itself. TMP's Development Finance service connects developers to the right capital, first time.

3 Mistakes That Sink UK Development Finance Applications

Mistake 1: Budgeting for Yesterday's Leverage and Rates

Appraisals built on cheap debt and high loan-to-value ratios no longer reflect the market. Rework the numbers against current UK development finance terms before committing to a site.

Mistake 2: Leaving the Funding Search Too Late

Securing finance takes time, and a last-minute scramble weakens your position. Engaging on funding early, ideally before site acquisition, protects both terms and timing.

Mistake 3: Chasing the Lowest Rate Alone

The cheapest headline rate can hide restrictive terms, slow drawdowns, and punitive exit fees. The best UK development finance balances cost, leverage, flexibility, and certainty of delivery.

How TMP Helps Developers Secure UK Development Finance

TMP Real Estate is an independent real estate consultancy with a dedicated capital advisory capability. We help developers structure, package, and place UK development finance, matching each scheme to the lenders most likely to back it, across senior debt, mezzanine, and equity.

By presenting a lender-ready proposition and accessing the whole market of banks, debt funds, and private capital, we help good projects secure the funding they deserve on the best available terms. Explore our Capital Advisory service, learn more about our team, or read our guide to debt and equity opportunities.