Deposit Unlock was a mortgage scheme run by the Home Builders Federation that let buyers purchase a new-build home with a small deposit. It has closed to new completions.
It was for buyers of new-build homes from participating home builders, whether they were first-time buyers or moving home.
Participating builders paid into an insurance arrangement that protected lenders if a low-deposit mortgage went wrong. That cover let lenders offer higher loan-to-value mortgages on new-build homes than they otherwise would.
It is no longer open, though mortgage offers already made when it closed were honoured by the lender. If a listing still mentions it, ask the builder what they offer now, and see the schemes that are open today.
Each rule in its primary source's own words, with the date it applies from.
Deposit Unlock closed to new completions in April 2026.
. Start date: the month the source states.Deposit Unlock will close to new completions in April 2026. Outstanding mortgage offers at that point will continue to be honoured by the relevant lender.
Deposit Unlock was only for new-build homes.
. Start date: the source states no start date, so this is the day it was published.a low deposit mortgage scheme exclusive to new build homes
The home had to be built by a participating home builder.
. Start date: the source states no start date, so this is the day it was published.The participating home builders are: