Financing Non-Mortgageable and Derelict Properties via Auction Finance

Buying a derelict or unmortgageable property at auction? Learn how to fund it using auction finance, bridging loans, and refurbishment exit strategies that work.

Some of the best property deals are hidden behind boarded-up windows.

Derelict and non-mortgageable properties often sell well below market value — but they also scare off most high-street lenders.

That’s where auction finance comes in.

This short-term funding can help you buy, refurbish, and refinance properties others can’t touch. Here’s how it works.

What Makes a Property “Unmortgageable”?

Lenders use this term when a property doesn’t meet their minimum condition standards. Common reasons include:

  • No kitchen or bathroom
  • Severe damp or structural issues
  • Fire or flood damage
  • Missing utilities or roof
  • Lease issues (short leases or absent freeholders)

High-street lenders see these as too risky. Auction finance lenders, however, look at potential, not condition.

How Auction Finance Solves the Problem

Auction finance (or a bridging loan) is designed for speed and flexibility.

Lenders base their decision on the property’s current value and your exit plan, rather than its current state.

You can:

  • Borrow up to 75% of the property’s value
  • Fund refurbishments quickly
  • Refinance onto a standard mortgage once works are complete

Because it’s short-term (usually 6–12 months), auction finance gives you breathing space to turn the property around.

Funding Derelict Properties: The Step-by-Step Process

  • Pre-Approval – Get a Decision in Principle from an auction finance specialist before bidding.
  • Valuation – The lender assesses current and potential post-works value.
  • Offer & Drawdown – Funds can be released within 7–10 days.
  •  Refurbishment Phase – Complete improvements using your own funds or a refurbishment-inclusive loan.
  • Exit – Refinance onto a buy-to-let or residential mortgage, or sell for profit.

Types of Finance Available

Standard Auction Finance:

Ideal for properties that need light cosmetic work.

Refurbishment Bridging Loans:

Include staged drawdowns for more extensive works.

Development Finance:

For heavy projects or rebuilds where planning and full construction are involved.

Example of an Exit Strategy

A client purchases a derelict property for £100,000.

They borrow £70,000 via auction finance, invest £20,000 in refurbishment, and refinance at £180,000 within 6 months.

The new mortgage clears the loan, releases equity, and locks in long-term affordability.

What Lenders Look For

Even flexible lenders need confidence in your plan. They’ll review:

  • Property condition and estimated works
  • Cost schedule and timeline
  • Your exit strategy (sale or refinance)
  • Proof of funds for refurb
  • Experience (if it’s a heavy refurbishment)

If your plan is realistic and backed by quotes, approval is usually fast.

Case Studies

Case Study 1 – Fire-Damaged Terrace in Birmingham

Investor bought a fire-damaged house at auction for £85,000.

Auction Finance UK secured a £60,000 bridging loan in 8 days.

After £25,000 of refurb, it was valued at £170,000 and refinanced within 5 months.

Case Study 2 – No Bathroom, No Problem

Client purchased a cottage in Cornwall missing basic amenities.

Mainstream lenders refused to lend.

We secured 75% LTV auction finance, and after installing a kitchen and bathroom, the property refinanced onto a residential mortgage at £155,000.

Case Study 3 – Developer Rescue on a Derelict Block

Developer purchased a semi-derelict block of flats at auction for £290,000.

We arranged a refurbishment bridge including staged drawdowns.

Works completed in 7 months, and the developer refinanced on a £510,000 valuation.

FAQs

Ans: Yes. Auction finance is specifically designed for unmortgageable or derelict properties.

Ans: In as little as 5–10 working days if your documents and valuation are ready.

Ans: Not always. Some lenders prefer experience for heavy refurbishments, but light works are fine for first-timers.

Ans: Yes. Some lenders offer refurbishment bridging loans with staged payments.

Ans: You can refinance onto a standard mortgage once the property meets lending criteria.

Ready to secure your auction success?

Get in touch today and turn your bids into wins!