Ultimate Guide to Development Mortgages
Development finance for property development projects, including new builds, conversions, and refurbishments. These specialist loans provide funding for both land purchase and construction costs, with funds released in stages.
Typical deposit 30% - 35% · Typical timeline 4-8 weeks
Summary
Finance for property development and construction projects. Typical deposit: 30% - 35%. Usual timeline: 4-8 weeks. There are 310 development mortgage brokers listed on Mortgage118. Mortgage118 does not quote live rates — compare brokers for product-specific figures.
What is Development?
Understanding the fundamentals and purpose of development financing
Finance for property development and construction projects.
Development finance provides funding for property construction or major renovation projects. Loans are typically drawn down in stages as building work progresses, with a monitoring surveyor verifying milestones before each release of funds.
Key Features
Essential characteristics that make development mortgages unique
Staged funding releases based on project progress
Specialist lenders with development expertise
Flexible terms for various project types
Professional project monitoring and support
Exit strategy flexibility
Eligibility Requirements
Key criteria you need to meet to qualify for development financing
In most cases you'll need to meet both property and borrower criteria — lenders assess the deal as a whole.
Property Requirements
- Suitable land or property for development
- Valid planning permission
- Good location and market conditions
- Realistic project timeline and budget
- Professional project management
Borrower Requirements
- Development experience and track record
- Strong financial position and credit history
- Adequate deposit and working capital
- Professional team in place
- Clear project feasibility and exit strategy
Application Process
Step-by-step guide to securing your development mortgage
Timescales vary by lender and case complexity — the steps below are typical.
Initial Consultation
45-60 minReview project plans, costs and funding requirements
Feasibility Assessment
3-5 daysDetailed appraisal of project viability and costs
Full Application
3-5 daysSubmit project plans, schedules and financial documents
Site Valuation
1-2 weeksSurveyor inspects site and reviews development plans
Underwriting & Offer
2-4 weeksLender reviews project and issues facility letter
Drawdowns & Monitoring
OngoingStaged fund releases tied to build milestones
What lenders look for
Typical underwriting factors for development mortgages — confirm product terms with an FCA-authorised broker
Borrower profile
- Development experience and track record
- Strong financial position and credit history
- Adequate deposit and working capital
- Professional team in place
- Clear project feasibility and exit strategy
Property requirements
- Suitable land or property for development
- Valid planning permission
- Good location and market conditions
- Realistic project timeline and budget
- Professional project management
Typical timeline
Many development cases complete in around 4-8 weeks, depending on valuation, legal work, and lender queues.
Mortgage118 does not publish live mortgage rates or monthly payments. Use our directory to compare brokers, then ask an FCA-authorised adviser for quotes tailored to your situation.
Benefits & Considerations
Weighing the advantages and important factors for development mortgages
Benefits
- Access to funding for development projects
- Staged funding reduces risk for lenders
- Professional support and monitoring
- Flexible terms for different project types
- Potential for significant returns on completion
Important Considerations
- Higher interest rates than standard mortgages
- Staged funding requires project milestones
- Professional monitoring and reporting required
- Longer processing times due to complexity
- Exit strategy must be clearly defined
Fees Guide
Understanding the costs and fees associated with development mortgages
Arrangement Fee
Facility setup fee
Valuation Fee
Site and development appraisal
Legal Fees
Facility agreement and monitoring
Monitoring Fee
Build progress inspections
Broker Fee
Development finance arrangement
Important Notice
Fees can vary significantly between lenders and depend on your specific circumstances. Advisers will provide you with a detailed breakdown of all costs before you proceed.
Useful Resources
Authoritative links to help with your development mortgage journey
Frequently Asked Questions
Common questions and answers about development mortgages
Work out the costs
Use our UK mortgage calculators to estimate stamp duty, monthly payments and buy-to-let yields before you apply.
Related Specialisations
Explore other mortgage types that might be relevant to your needs
Browse Development Brokers by Location
These pages list active advisers in each area — use them to narrow down, then check each profile covers development lending.
Browse all UK regions →Content last reviewed: March 2026. Rates and criteria may have changed - always confirm with a qualified adviser.
