Development Finance Guide

Development Finance Guide hero image showing a construction site, architectural model, appraisal charts and calculator for UK property development funding.

Development Finance Guide – Development finance is used to fund land purchases, new builds, conversions, heavy refurbishments and larger property projects. It is usually a short-term facility, released in stages as the build progresses, and repaid when the finished property is sold or refinanced.

This guide explains how development finance works in the UK, what lenders assess, how GDV and LTC affect borrowing, what documents are usually needed, and how developers can prepare a stronger application.

For brokers, developers and property professionals, the right route depends on the project, planning position, cost plan, experience, security, exit strategy and lender appetite. Connect supports advisers across residential, buy-to-let, commercial, bridging, development finance, second charge, protection and general insurance, making it a complete UK mortgage and protection network rather than a single-product route.

What Is Development Finance?

Development finance is a short-term property loan used to fund construction, conversion or major refurbishment works. It can help with land or property purchase costs, build costs, professional fees, planning-related costs, contingency funding and staged project expenses.

Unlike a standard mortgage, development finance is usually drawn in stages. The lender may release an initial amount at completion, followed by further drawdowns during the build. Each stage is commonly linked to progress reports from a monitoring surveyor or quantity surveyor.

The loan is normally repaid through one of two routes:

  • Sale of the completed units.
  • Refinance onto a longer-term mortgage, such as buy-to-let, commercial or semi-commercial finance.

Development finance is not only for large developers. It can also be relevant for experienced landlords, SME builders, commercial property investors, portfolio investors and developers working on smaller schemes where a standard mortgage or bridging loan is not suitable.

When Development Finance May Be Needed

Development finance may be suitable when a project involves construction risk, staged build costs or structural works that a standard mortgage lender may not accept.

You may need development finance for:

  • Buying land with planning permission.
  • Building residential units from the ground up.
  • Converting a commercial building into residential property.
  • Funding a mixed-use or semi-commercial development.
  • Carrying out heavy refurbishment or structural works.
  • Developing multiple units in phases.
  • Completing a project before selling or refinancing.
  • Replacing short-term funding as the project moves into the build stage.

A bridging loan may be suitable for short-term property purchases or light refurbishment. Development finance is usually more appropriate when the work involves construction, major structural change, staged drawdowns or a full development appraisal.

If your project involves commercial property, you may also find our Commercial Mortgage Guide useful.

How Development Finance Works

Development finance is usually based on the project’s costs and value. Lenders want to understand what is being built, how much it will cost, who is completing the work, what the finished property may be worth and how the loan will be repaid.

A typical development finance structure includes:

Stage What usually happens
Initial review The lender or broker reviews the project, developer experience, planning status, cost plan and exit strategy.
Valuation and professional reports A valuer assesses the site, plans, local market and projected gross development value. A monitoring surveyor may review build costs and the construction programme.
Offer The lender confirms the loan amount, rate, fees, drawdown structure, security and conditions.
Initial drawdown Funds are released at completion, often to help with site purchase or refinance.
Staged drawdowns Further funds are released as the project progresses and inspections confirm completed works.
Repayment The loan is repaid through sale, refinance or a combination of both.

The staged approach helps lenders manage risk. It also helps developers fund works progressively instead of needing all build costs available on day one.

Key Development Finance Terms

Gross Development Value, or GDV

GDV is the estimated value of the finished project once all works are complete. For example, if a developer is building four houses and each is expected to sell for £350,000, the GDV may be £1.4 million.

GDV is central to development finance because it helps lenders assess whether the completed scheme supports the loan amount requested.

Loan to Cost, or LTC

Loan to Cost compares the loan amount with the total development cost. Total cost may include land, build costs, professional fees, finance costs and contingency.

For example, if total project costs are £1 million and the lender provides £750,000, the LTC is 75%.

Loan to GDV

Loan to GDV compares the loan amount with the expected finished value of the project. This helps lenders assess the relationship between debt and the completed asset value.

Developer Equity

Developer equity is the amount the borrower contributes to the project. This may come from cash, existing land value, retained profit, investor funds or other acceptable sources.

Contingency

A contingency is an allowance for unexpected costs. Lenders usually want to see a realistic contingency in the cost plan because development projects can face delays, price increases or site issues.

Exit Strategy

The exit strategy explains how the loan will be repaid. A strong exit is one of the most important parts of a development finance application.

What Lenders Assess

Development finance lenders assess more than the property value. They look at the whole project, the borrower, the team and the repayment route.

Lenders usually consider:

  • The planning position.
  • The gross development value.
  • The total project cost.
  • The borrower’s experience.
  • The strength of the professional team.
  • The contractor’s background.
  • The build programme.
  • The local property market.
  • The level of borrower equity.
  • The proposed exit strategy.
  • The borrower’s credit history and financial position.
  • The security available.
  • The level of contingency.

Experienced developers may have access to stronger terms because they can show a track record of completing similar projects. First-time developers may still be considered, but lenders may ask for a stronger professional team, higher equity input, more detailed costings or a lower-risk project.

Types of Development Finance

Land Acquisition Finance

Land acquisition finance can help purchase a site before construction begins. Lenders will usually want to understand the planning status, location, intended use, demand for the finished units and whether the borrower has a clear development plan.

Land without planning can be harder to fund. Terms may be stricter because the lender has more uncertainty around value, timing and exit.

New Build Development Finance

New build finance supports construction from the ground up. This may include houses, flats, mixed-use schemes, small residential developments or larger phased projects.

The lender will review planning consent, building regulations, costings, contractor details, the build schedule and the expected sales or refinance route.

Conversion Finance

Conversion finance can support projects where an existing building is changed into a different use. This may include office-to-residential conversion, commercial-to-residential conversion or changes involving mixed-use property.

These cases can be more complex because the lender may need to assess planning consent, permitted development rules, structural works, lease arrangements and demand for the finished units.

Heavy Refurbishment Finance

Heavy refurbishment finance is used when works go beyond cosmetic improvements. It may involve structural changes, layout changes, extensions, roof works, major internal reconfiguration or a change in use.

Where a property is not currently mortgageable, development finance or bridging finance may be considered depending on the scale of work and the exit route.

Mezzanine Finance

Mezzanine finance is a top-up facility used when senior development finance does not cover the full funding requirement. It can reduce the amount of cash the developer needs to contribute, but it usually comes at a higher cost because it carries more risk for the lender.

Mezzanine finance should be structured carefully. The repayment plan, total interest cost and relationship with the senior lender must be clearly understood before proceeding.

Development Finance Costs and Fees

Development finance costs vary depending on the project, borrower experience, loan size, location, security, build complexity and exit strategy.

Typical costs may include:

  • Interest.
  • Arrangement fee.
  • Exit fee, where applicable.
  • Valuation fee.
  • Monitoring surveyor or quantity surveyor fees.
  • Legal fees.
  • Broker fees, where applicable.
  • Administration or drawdown fees.
  • Contingency costs within the development budget.

Interest is often rolled up, meaning the borrower may not need to make monthly payments during the term. Instead, interest is added to the loan and repaid at the end. This can help cash flow during the build, but it also increases the total amount owed.

Borrowers should look beyond the headline rate. The total cost of finance can be affected by fees, timing, drawdown structure, retained interest, exit costs and delays.

How Much Can You Borrow?

The amount you can borrow depends on the project and lender appetite. Lenders usually assess development finance using GDV, LTC, borrower contribution and the strength of the exit strategy.

Borrowing may depend on:

  • The expected GDV.
  • The total development cost.
  • The purchase price or current site value.
  • Planning status.
  • Borrower experience.
  • Location and demand.
  • Contractor strength.
  • Sales evidence or refinance potential.
  • The level of contingency.
  • The overall risk of the project.

Some lenders may support smaller projects, while others focus on larger schemes. Funding can range from relatively small development facilities to multi-million-pound projects, subject to lender criteria and the strength of the proposal.

Documents Usually Needed

A strong application is easier to assess when documents are clear, complete and consistent. Missing documents can delay funding and weaken lender confidence.

Lenders may ask for:

  • Full planning permission or planning reference.
  • Site address and title information.
  • Development appraisal.
  • Schedule of works.
  • Cost plan.
  • Build timeline.
  • Details of the contractor and professional team.
  • Architect drawings.
  • Structural reports, where relevant.
  • Valuation or comparable sales evidence.
  • Asset and liability statement.
  • Proof of deposit or equity contribution.
  • Previous project experience.
  • Exit strategy explanation.
  • Company structure, where borrowing through a company.
  • Identification and anti-money laundering documents.

Brokers can add value by packaging the case clearly before it reaches the lender. A well-presented development finance case should make it easy for the lender to understand the project, the numbers, the risks and the repayment route.

Connect provides adviser services for mortgage brokers across referral support, packaging support, case placement and broker resources, helping advisers handle a wider range of client needs through one connected network.

Exit Strategies for Development Finance

A lender will want to know how the loan will be repaid before agreeing to fund the project. The exit strategy should be realistic, supported by evidence and suitable for the project.

Sale of Completed Units

This is common for residential developments. The developer sells the completed units and uses the proceeds to repay the loan.

Lenders may consider local demand, comparable sales, pricing assumptions, sales timelines and whether the projected values are realistic.

Refinance After Completion

Some developers plan to retain the property after completion. In this case, the exit may involve refinancing onto a buy-to-let, commercial or semi-commercial mortgage.

This route depends on rental demand, affordability, property type, lease terms, valuation and lender criteria at the point of refinance.

Partial Sale and Retention

A developer may sell some units to reduce debt and keep others for rental income. This can work well where the completed development creates both capital value and long-term income.

The lender will still want to understand how much debt is repaid, how quickly sales are expected and whether the retained units can support refinance.

Development Finance for Brokers

Development finance can be a valuable area for experienced brokers, as it often intersects with other client needs. A developer may also require bridging finance, commercial finance, buy-to-let finance, limited company borrowing, protection or general insurance.

This is why Connect’s proposition is built around comprehensive adviser support rather than a single narrow lending category. Advisers can access mainstream and specialist routes, placement support, compliance guidance, training, technology and a broad lender panel through one network.

If you are an experienced broker who wants to advise across a wider range of client needs, visit Join Connect Network to see how Connect supports advisers looking to grow a compliant and sustainable business.

Why Adviser and Network Choice Matter

Development finance is document-heavy, time-sensitive and lender-specific. The right adviser or broker support route can help identify the right lender, avoid unsuitable applications and improve the quality of the submission.

A complete network can support advisers across multiple product areas. This matters because many clients do not fit neatly into one category. A property developer may need development finance today, a commercial mortgage after completion, buy-to-let support for retained units, protection advice for business continuity and general insurance for the finished property.

Connect Experts also helps customers find a mortgage adviser by location, mortgage type and adviser preferences. For development finance clients, this can help them search for advisers with relevant commercial and property finance experience.

Tips to Improve a Development Finance Application

You can improve lender confidence by preparing the case carefully before submission.

Useful steps include:

  • Prepare a full development appraisal.
  • Provide clear planning documents.
  • Use realistic build costs.
  • Include a sensible contingency.
  • Evidence the expected GDV.
  • Show relevant previous experience.
  • Explain the contractor’s background.
  • Provide a clear build timeline.
  • Set out a realistic exit strategy.
  • Avoid over-optimistic sales values.
  • Make sure the borrower contribution is clearly evidenced.
  • Package documents in a logical order.

For brokers, a strong development finance case is not just about finding a lender. It is about presenting the project in a way that answers lender questions before they become delays.

Common Development Finance Mistakes

Development finance applications can be delayed or declined when the lender cannot clearly understand the risk.

Common issues include:

  • Unclear planning position.
  • Weak or missing cost plan.
  • Unrealistic GDV assumptions.
  • No clear exit strategy.
  • Limited borrower contribution.
  • Lack of development experience.
  • Contractor details not provided.
  • No contingency.
  • Poor explanation of the project.
  • Documents that do not match the application.

A lender needs confidence in the borrower, the project and the exit. The more complex the development, the more important the supporting information becomes.

Development Finance and the Complete Property Journey

Development finance is often one part of a wider property finance journey. A client may start with land acquisition, move into development finance, refinance completed units, retain part of the scheme as a landlord and later need commercial or protection advice.

That wider journey is why Connect positions itself as a complete mortgage and protection network. Advisers can support a broader range of client outcomes by providing access to mainstream lending, specialist lending, commercial finance, buy-to-let, bridging, development finance, second-charge mortgages, protection, and general insurance.

For customers who want to compare adviser options, Connect Experts provides a way to search for advisers by mortgage type and location. For brokers who want to grow their business, Connect Brokers provides the network, support, placement, and compliance structure that underpin the adviser journey.

Frequently Asked Questions

Question Answer
What is development finance? Development finance is a short-term property loan used to fund construction, conversion or major refurbishment projects. Funds are usually released in stages and repaid when the completed property is sold or refinanced.
How does development finance differ from bridging finance? Bridging finance is often used for short-term purchases, chain breaks or light refurbishment. Development finance is usually used for construction, structural works, conversions or larger projects where funds are drawn in stages.
What is GDV in development finance? GDV means gross development value. It is the expected value of the finished project once all works are complete.
What is LTC in development finance? LTC means loan to cost. It compares the loan amount with the total project cost, including purchase, build costs, fees and other relevant expenses.
Can first-time developers get development finance? Yes, some lenders may consider first-time developers. They may require stronger equity, a simpler project, experienced contractors and a clear professional team.
Do I need planning permission? Most lenders prefer full or outline planning permission before funding development finance. Land without planning can be harder to fund and may come with stricter terms.
How is development finance repaid? Development finance is usually repaid by selling the completed units, refinancing the finished property or using a combination of both.
How long does development finance take to arrange? Timescales vary depending on the project, documents, valuation, legal work and lender requirements. Complex developments can take longer if planning, title, valuation or cost details need further review.
What documents do lenders ask for? Lenders usually ask for planning documents, a development appraisal, cost plan, schedule of works, professional team details, borrower information, proof of equity and a clear exit strategy.
Can development finance cover 100% of costs? Full funding is uncommon. Some developers use mezzanine finance or additional security to reduce the cash contribution needed, but this increases cost and risk.
Do lenders check the contractor? Yes. Lenders usually want to know who is completing the work, what experience they have and whether the build cost and timeline are realistic.
Can I refinance after the development is complete? Yes. Some developers refinance completed units onto buy-to-let, commercial or semi-commercial finance, depending on the property, rental income, valuation and lender criteria.
Is development finance regulated? Some devel