This article is for general information only and does not constitute financial or investment advice.
BRRRR (Buy, Refurbish, Rent, Refinance, Repeat) is a strategy for recycling capital through multiple property purchases. Instead of leaving your deposit locked in each property, you recover it through refinancing at the higher post-works value and redeploy it into the next deal.
The strategy works in the UK. It also fails in the UK, usually because the numbers were wrong from the start.
How it works
Buy a property below market value, typically through auction, probate, or direct-to-vendor marketing. The purchase is funded with cash or a bridging loan.
Refurbish the property to increase its value and make it lettable. The works might include a new kitchen and bathroom, rewiring, replastering, new flooring, and cosmetic upgrades. The goal is to spend £15,000 to £30,000 on refurbishment and add £40,000 to £60,000 in value.
Rent the property to a tenant. The rental income demonstrates that the property is a viable BTL investment, which is what the refinancing lender needs to see.
Refinance onto a standard BTL mortgage at 75% LTV based on the new, higher valuation. If the numbers work, the mortgage amount covers or exceeds your total cash outlay (purchase price plus refurbishment plus all costs), and you recover your capital.
Repeat with the recovered capital.
A worked example
| Item | Amount |
|---|---|
| Purchase price (auction, BMV) | £100,000 |
| SDLT (5% surcharge band) | £5,000 |
| Bridging loan costs (6 months) | £7,000 |
| Refurbishment | £25,000 |
| Legal, survey, other costs | £3,000 |
| Total cash invested | £140,000 |
After refurbishment, the RICS surveyor values the property at £180,000.
Refinance at 75% LTV: £135,000 BTL mortgage.
Cash left in the deal: £140,000 minus £135,000 = £5,000. You have recycled £135,000 of your original £140,000 and retained a property generating rental income with £5,000 of equity remaining.
If the valuation comes in at £190,000 or above, you recover all your capital and leave nothing in the deal. That is the ideal BRRRR outcome.
Where it goes wrong
The valuation comes in low. RICS valuers are conservative. If you expected £180,000 and the surveyor says £165,000, your refinance at 75% LTV produces £123,750, leaving £16,250 of your capital stuck in the deal. You cannot recycle it.
Refurbishment overruns. A £25,000 budget becomes £35,000 because of hidden damp, asbestos, or structural issues behind the walls. Every pound of overrun reduces your return and makes the refinance numbers tighter.
Bridging term extends. If the refurbishment takes nine months instead of six, you pay three extra months of bridging interest at 0.8% to 1% per month. On a £100,000 bridge, that is £2,400 to £3,000 in additional costs.
The BTL lender's rental assessment fails. BTL lenders stress-test rental income at 125% to 145% of mortgage payments at a notional rate of 5.5% to 6.5%. If the rental income does not meet this threshold, the lender will not offer the full 75% LTV.
Making the numbers work
Before purchasing, calculate your target post-works value and verify it with comparable sold prices from Land Registry. Do not rely on Zoopla or Rightmove asking prices, as these reflect what sellers hope to achieve, not what buyers pay.
Get a refurbishment quote from a contractor before exchanging. Add 15% contingency.
Speak to a BTL mortgage broker before purchasing. Confirm that the expected rental income meets lender stress-test criteria at the target refinance value.
The strategy works when you buy at a genuine discount, refurbish efficiently, and the valuation reflects the work done. It fails when any one of those three elements is off.
Sources
- HM Land Registry, "UK House Price Index reports". https://www.gov.uk/government/collections/uk-house-price-index-reports [Accessed 6 May 2026]