Unlike a standard residential mortgage, where funds are released in full at completion, a self-build mortgage provides funds in stages (or “tranches”) as the project progresses.
This staged release helps ensure that funds are aligned with build milestones and supports effective budgeting throughout the process.
You can borrow a percentage of the combined land value and build costs, making it possible to finance both the purchase of the plot and the construction itself.
Affordability and Repayment
As with any mortgage, lenders will assess affordability based on your income, outgoings and credit profile.
You will typically need to contribute some of your own funds upfront to cover the initial stages of the build before the first mortgage tranche is released.
During the build phase, some lenders offer an interest-only structure, helping to reduce monthly costs while construction is ongoing. Once the build is complete, the mortgage can be switched to a standard residential mortgage.
Loan Terms and Lending Criteria
Self-build mortgages are available for a range of construction types, including traditional builds, timber frames and eco-homes.
Requirements include:
Pricing & Fees
Interest rates for self-build mortgages can be higher than standard mortgage rates due to the specialist nature of the loan. As each self-build is different, finance is bespoke to the project.
Valuation and legal fees are payable. There may be additional fees payable to a valuer or monitoring surveyor at each key build stage. Lender arrangement fees can be added to the mortgage. We will always provide a clear breakdown of the costs upfront
As a mortgage is secured against your home, it could be repossessed if you do not keep up the mortgage repayments.
