What Is Development Finance?
Development finance is a specialist type of loan designed to fund property development projects across the UK. Whether you are building new homes, converting a commercial building into residential flats, or undertaking a major refurbishment, a development finance loan provides the capital to cover both the purchase of land or property and the build costs.
Unlike a standard commercial mortgage or bridging loan, development finance releases funds in stages throughout the project. These staged drawdowns align with construction milestones, meaning the borrower only pays interest on the amounts actually drawn. This makes property development finance the most cost-efficient funding structure for projects with significant build costs.
Development finance lenders assess the gross development value (GDV) — the estimated market value of the completed scheme — rather than just the current site value. This allows property developers to borrow more relative to their initial investment because the lender is lending against the future value of the completed project. Development finance is available across the UK for residential and commercial property developments of all sizes.
How Does Development Finance Work in the UK?
Development finance works through a structured drawdown process that releases funds as your project progresses. Understanding how development finance funding operates at every stage helps you plan your project effectively.
Stage 1: Site Acquisition
The first drawdown covers the purchase of the development site — whether that is land or an existing property for conversion. Development finance lenders typically lend up to 70% of the land or property purchase price. The developer contributes the remaining 30%+ as equity.
Stage 2: Build Cost Drawdowns
As construction progresses, the borrower draws down further funds against agreed milestones. Common drawdown stages include:
- Foundations and substructure — Once groundworks are complete
- Superstructure — Walls, floors, and roof completed
- First fix — Plumbing, electrics, and carpentry rough-in
- Second fix — Finishing trades, kitchens, bathrooms
- Practical completion — Final snagging and sign-off
The loan amount available at each stage is verified by a monitoring surveyor before funds are released.
Stage 3: Monitoring Surveyor Inspections
Before each drawdown, the lender sends a monitoring surveyor to inspect the works and confirm the milestone has been achieved. The surveyor certifies that the work completed matches the drawdown request, protecting both the developer and the lender.
Stage 4: Exit
Once the project reaches practical completion, you exit the development finance facility through one of three main routes: selling the completed units to generate new homes for buyers, refinancing onto a commercial mortgage or buy-to-let mortgage, or arranging development exit finance to bridge the sales period.
This staged approach means you only pay interest on drawn amounts, which is significantly more cost-efficient than a bridge loan where interest accrues on the full sum from day one. For a comparison, see our guide on [development finance vs bridging](/compare/development-finance-vs-bridging).
Development Finance Rates and Costs
Development finance rates in the UK typically range from 7% to 12% per annum, depending on the developer's experience, the scheme size, GDV, and the lending criteria of the finance lender.
The full cost structure includes:
- Interest rate — 7%-12% per annum, charged on drawn funds only
- Arrangement fee — 1-2% of the total facility (land + build costs combined as the loan amount)
- Exit fees — 0-1.5% of the total facility (not all development finance lenders charge exit fees)
- Monitoring surveyor fees — £500-£1,500 per inspection visit
- Valuation fee — £2,000-£10,000+ depending on scheme complexity
- Legal fees — £3,000-£15,000+ depending on transaction complexity
Because interest is only charged on drawn funds, the effective cost is lower than the headline rate suggests. On a 12-month project where funds are drawn progressively, you might only pay interest on the average balance of around 50-60% of the total facility.
For experienced developers with strong track records, rates from 7-8% are achievable. First-time developers typically pay rates at the higher end of the range. A development finance broker can help you compare finance options and secure bespoke loan terms tailored to your project.
Types of Property Development Finance
Development finance covers a broad range of property developments across the UK, from residential development to commercial development and everything in between.
Ground-Up New Build
The most common use of development finance — building new homes, apartment blocks, or commercial buildings from scratch. Development finance lenders typically lend up to 65-70% of GDV and 85-90% of build costs for new build projects. This is the core product for any housebuilder or developer delivering new homes.
Commercial-to-Residential Conversion
Converting commercial buildings (offices, warehouses, retail units) into residential accommodation. Many conversion projects benefit from permitted development rights, which streamlines the planning process. Conversion projects often attract favourable development finance terms because they involve lower build risk.
Permitted Development Schemes
Conversions under permitted development rights (Class MA, Class O, etc.) are a popular route for property developers. Finance lenders understand these schemes well, and the reduced planning risk often translates to better lending criteria.
Heavy Refurbishment
Major structural refurbishment works that go beyond cosmetic improvements. If the project involves structural alterations, extensions, change of use, or significant works requiring planning permission, development finance is more appropriate than a bridging finance facility.
Mixed-Use Development
Projects combining residential and commercial elements — for example, apartments above retail units or live-work spaces. The lender assesses both the residential and commercial elements of the GDV. Mixed-use developments require specialist development finance lenders with experience in valuation of multi-unit schemes.
Student Accommodation and Build to Rent
Specialist development finance is available for purpose-built student accommodation and build-to-rent schemes across the UK. These sectors have seen significant growth, and experienced development finance lenders understand the operational requirements. A range of development finance products exist for these specialist sectors.
Gross Development Value (GDV) Explained
GDV is the cornerstone metric in development finance. It represents the total market value of the completed development, calculated by adding up the expected sale prices (or rental values capitalised) of all units in the scheme.
For example, a development of 10 houses expected to sell at £350,000 each has a GDV of £3.5 million.
Development finance lenders typically lend up to:
- 65-70% of GDV for the total facility (land + build costs combined)
- 85-90% of build costs as a separate measure
- Day-one land loan of up to 70% of the site purchase price
The GDV assessment must be supported by comparable evidence — recent sales of similar properties in the local market. Most lenders require an independent RICS valuation that includes a residual appraisal and GDV estimate.
Getting the GDV right is critical. An inflated GDV can lead to borrowing more than the project can support, while an overly conservative GDV may mean the loan amount is insufficient to fund the project adequately. Work with experienced agents and valuers to ensure your GDV is realistic.
Eligibility: Can I Get Development Finance?
Development finance eligibility varies by lender, but the core criteria include:
Developer Experience
Most development finance lenders prefer experienced developers with a track record of completed property developments. Experienced developers with multiple successful projects attract better rates and higher leverage.
However, first-time developers are not excluded. Some lenders specialise in financing first-time developers, though they typically require:
- A lower GDV scheme (reducing risk)
- A stronger equity contribution
- An experienced project manager or contractor
- Evidence of relevant skills (e.g., construction industry background)
The Financial Conduct Authority does not regulate most development finance transactions, but lenders still apply rigorous assessments.
Planning Permission
Most development finance lenders require planning permission to be in place before drawdown. Some will lend against permitted development rights without a formal planning consent. Pre-planning finance is available from specialist lenders but at higher rates and with different loan terms.
Site Ownership or Purchase
You can either already own the development site or include the site purchase within the development finance facility. If purchasing, the lender typically funds up to 70% of the acquisition cost.
Professional Team
Lenders want to see a credible professional team in place: architect, quantity surveyor (QS), main contractor or project manager, and a monitoring surveyor (appointed by the lender).
Borrower Structure
A development loan is available to individuals, limited companies, SPVs, partnerships, and joint ventures. Most lenders require personal guarantees from developers regardless of the corporate structure.
How to Apply for Development Finance
The development finance application process is more detailed than a bridging loan but follows a logical sequence:
- Speak to a specialist broker — A development finance broker assesses your project and identifies suitable lenders. At Commercial Mortgages Broker, we work with development finance lenders across the UK.
- Prepare your application pack — This should include planning permission, detailed cost breakdown, build programme, QS report (for larger schemes), site plans, GDV evidence, and developer CV.
- Receive indicative terms — Your broker presents terms from multiple lenders for comparison of finance options.
- Formal application — Once you accept terms, the lender conducts full due diligence including valuation, legal checks, and build cost review.
- Facility agreement — Legal documentation is finalised and the facility is established.
- First drawdown — The initial tranche (typically site acquisition) is released.
- Ongoing drawdowns — Further funds released against build milestones following monitoring surveyor sign-off.
Timescales vary, but a straightforward development finance application typically takes 3-6 weeks from initial enquiry to first drawdown. Complex schemes or larger facilities may take longer.
Choosing a Development Finance Lender
The UK development finance market includes a range of development finance lenders:
**High street banks** — Limited appetite for development finance; prefer larger, lower-risk schemes with experienced developers. Competitive rates where they will lend.
**Specialist development finance lenders** — The backbone of the market. Lenders with deep expertise in assessing property development projects and releasing staged funding. More flexible on scheme type and developer experience.
**Private funds and family offices** — Can provide very large facilities or fund unusual schemes that mainstream lenders avoid. Loan terms vary widely.
**Finance brokers** are essential in this market because no single lender suits every project. A broker with relationships across the development finance lending market can match your specific project with the most appropriate lender, saving time and often securing better terms. The development finance team at CMB supports property developers at every stage of the process.
Use our [development finance calculator](/calculators/development) to model costs for your project, or [contact us](/contact) to discuss your development finance requirements with our specialist team.
*Written by Matt Lenzie, Founder of Commercial Mortgages Broker. Ex-Lloyds Bank & Bank of Scotland.*