Bridging for property mortgages cannot touch
Unmortgageable Property Finance
No kitchen, short lease, structural problems, non-standard construction: the issues that make a property unmortgageable also make it a buying opportunity. Bridging finance buys it as it stands; the works make it mortgageable again.
Typical terms
What makes a property unmortgageable
Mortgage lenders lend against habitable, saleable, durable security. A property becomes unmortgageable when the valuer cannot tick one of those boxes. The usual reasons:
- No working kitchen or bathroom: the standard habitability test, and the most common reason auction stock cannot take a mortgage
- Structural problems: subsidence, failed roof structure, wet rot or dry rot: anything a valuer flags for structural repair
- Short lease: below roughly 70 years most mainstream lenders retreat; below 60 nearly all do
- Non-standard construction:concrete panel, steel-frame and certain prefabricated types sit outside many lenders' criteria
- Japanese knotweed: within influencing distance of the building, without a management plan in place
- Building regulations and planning permission breaches: unauthorised works or a change of use that was never regularised
- Low value:below most lenders' minimum property value, typically around £50,000
The two-step route: bridge, fix, refinance
Bridging lenders underwrite the property as it stands and your plan to fix it, not the mortgage-lender checklist. That turns an unmortgageable purchase into a sequence: buy with a bridging loan at up to 70 - 75% LTV, resolve the disqualifying issue, then exit to a standard mortgage at the improved value or sell to a buyer who now can get one. Where the fix is a refurbishment (the kitchen, the bathroom, the roof), a refurbishment bridging loan funds the works as well as the purchase. Where it is legal or planning work (lease extension, regularising building regulations), a plain bridge holds the property while you resolve it.
The underwriting focus shifts to your exit: the lender wants evidence that the fix genuinely produces a mortgageable, saleable property. A structural engineer's report where structure is in question, a lease extension quote from the freeholder, a knotweed management plan with an insurance-backed guarantee. We assemble that evidence before submission because it is exactly what turns a marginal application into an approved one.
A worked example: no kitchen, short timescale
Worked example
Probate purchase of a stripped-out terrace at £95,000 (no kitchen or bathroom, otherwise sound). £18,000 of works to full habitability, end value £150,000, exit to a buy-to-let mortgage.
Figures
Indicative figures for illustration only. Lender criteria vary and every figure is confirmed in a formal offer.
Where to find these deals, and why the margin exists
Unmortgageable properties cluster at property auctions, in probate sales and in cash-buyer-only listings. The discount is structural: most buyers need a mortgage, the property cannot take one, so the buyers who remain set the price. Bridging finance puts you in that smaller room. The margin is the reward for solving the problem, and it survives only if the fix is costed honestly, so we pressure-test the numbers with you before anything goes to a lender.
Unmortgageable property questions
Mainstream mortgage lenders decline it, which shrinks the buyer pool to cash buyers and bridging-funded investors and usually cuts the price. The property is still buyable and still insurable: it simply needs short-term finance secured on its current condition, and a plan that fixes whatever makes it unmortgageable so it can be refinanced or sold normally.
You do not, directly: you break the problem into two steps. A bridging loan buys the property in its current state. You fix the disqualifying issue (fit a kitchen, do the structural repairs, extend the lease, complete the works). Then you take a standard mortgage on the now-mortgageable property at its improved value, repaying the bridge.
The common triggers: no working kitchen or bathroom, structural problems such as subsidence or wet rot and dry rot, a short lease (broadly under 70 years), non-standard construction, Japanese knotweed within influencing distance, unresolved building regulations or planning permission breaches, and properties valued below most lenders' minimum (around £50,000).
Auctions are the main marketplace: lots are often there precisely because mortgage buyers cannot bid. Beyond the auction room, look for long-listed properties described as needing modernisation, probate sales, and agents' cash-buyer-only listings. The discount exists because the buyer pool is small; bridging finance is what lets you be in it.
The margin is real but must be earned: you are being paid to solve a problem most buyers cannot. The deal works when the cost of the fix plus the cost of finance is comfortably below the uplift from unmortgageable to mortgageable. Price the works properly, verify the cause (a structural survey where structure is in question), and stress the end value before committing.
Found a property a mortgage cannot buy?
Tell us what is wrong with it, what it costs to fix, and what it is worth fixed. That is the whole underwrite; we will come back with indicative terms, usually the same working day.