Top 10 Best Self Build Brokers in the UK (2026)
Ranked shortlist from our directory — same broker pool and rules as our Self Build guide. Not a personal recommendation; see how we rank below.
How this list is built
We use transparent directory signals only - no paid placement.
- Brokers must list self build in our directory, using the same matching rules as the pillar page.
- Order is based on verification signal, then average rating, then total review count.
- This is directory ordering, not a personal recommendation or financial advice.
Shortlist
FCA-regulated brokers in our directory with self build specialisation, ordered as above.
10 brokers
Yellow Brick Mortgages
Norwich
Yellow Brick Mortgages is a mortgage broker based in Norwich. The firm supports clients with Adverse Credit and Auction mortgages.
Create Finance
Derby
Create Finance is a mortgage broker based in Derby. The firm supports clients with Adverse Credit and Auction mortgages.
Advantage Financial Solutions
Thornbury
Advantage Financial Solutions is a mortgage broker based in Thornbury. The firm supports clients with Adverse Credit and Auction mortgages.
Allegro
Stantonbury
Allegro is a mortgage broker based in Stantonbury. The firm supports clients with Adverse Credit and Auction mortgages.
Finance Planning
Haywards Heath
Finance Planning is a mortgage broker based in Haywards Heath. The firm supports clients with Adverse Credit and Auction mortgages.
Smart Advice
Thornbury
Smart Advice is a mortgage broker based in Thornbury. The firm supports clients with Adverse Credit and Auction mortgages.
Knight Frank Finance
London
Knight Frank Finance is a mortgage broker based in London. The firm supports clients with Auction and Bridging mortgages.
The Levels Financial
Taunton
The Levels Financial is a mortgage broker based in Taunton. The firm supports clients with Adverse Credit and Auction mortgages.
Number One Mortgages
Adur
Number One Mortgages is a mortgage broker based in Adur. Established in 2004. The firm supports clients with Adverse Credit and Auction mortgages.
AS Financial
Camden
AS Financial is a mortgage broker based in Camden. The firm supports clients with Adverse Credit and Auction mortgages.
Related Articles
Practical guides and explainers from our blog — relevant to this mortgage type.
Self-Build Mortgages: Stage Payments, Costs & Lender Guide
How self-build mortgages work in the UK — from advance and arrears stage payments to cost overrun contingencies, lender criteria, and choosing between custom build and self-build routes.
Self-Build Mortgage Calculator: Estimate Your Costs
Estimate your self-build mortgage costs including land purchase, build costs per stage, contingency buffers, and monthly payments. Understand how lenders calculate your borrowing limits.
Custom Build vs Self-Build: Finance Options Compared
Compare custom build and self-build mortgage options. Understand the key differences in how lenders treat each route, stage payment structures, and which approach suits your project.
Self Build Mortgages: Complete Guide to Building Your Own Home
Complete guide to self build mortgages. Learn about building your own home, stage payments, and application process.
Important Information
Mortgage118 is not a lender or broker. This page reflects directory information only and is not financial advice. Confirm FCA status and suitability with an adviser before you act.