If you've been eyeing up rundown properties and wondering whether the numbers actually stack up, the BRR (Buy, Refurbish, Refinance) strategy could be exactly what you're looking for — but only if you know how to assess a deal quickly and accurately. We're going to walk you through a real-life example, step by step, so you can start analysing deals with confidence.
What Is BRR and Why Does It Work?
BRR stands for Buy, Refurbish, Refinance. In simple terms, you purchase a below-market-value property in need of work, carry out a refurbishment to increase its value, and then refinance against the new, higher valuation — ideally pulling most or all of your initial capital back out to recycle into the next deal.
The beauty of this strategy is that it allows property investors to build a portfolio without tying up large sums of money indefinitely. You can find these opportunities through estate agents, Rightmove, Zoopla, direct-to-vendor letters, or platforms like PropertyAlert.uk, which surfaces investment-grade listings across the UK, making it easier to filter for properties with genuine BRR potential.
Working Backwards: The Four Figures You Must Know
The key to analysing any BRR deal is to work backwards from the end result. There are four figures you need before you can make a sensible offer:
- End value (GDV) — What will the property be worth once refurbished?
- Rental income — What rent will it achieve after the works?
- Refurbishment cost — How much will the work actually cost?
- Maximum offer price — What do you need to pay to make the numbers work?
Take a real example we reviewed recently: a three-bedroom terraced property listed at £99,950, which we planned to convert into a four-bedroom home. To find the end value, we pulled the property's EPC certificate (available free via the EPC register) to confirm the floor area — in this case, 92 square metres — and then searched for sold comparables on Rightmove within a quarter-mile radius. We found three solid comparables, all terraced properties sold in 2024, ranging from £165,000 to just under £170,000. To be conservative, we used £160,000 as our projected end value. For rental income, a comparable four-bedroom house in the same area was achieving £955 per calendar month, so we used £950 in our analysis.
Running the Numbers Through a Deal Analyser
Once you have those three figures, it's time to stress-test the deal using a proper BRR deal analyser. Inputting the asking price of £99,950, a refurbishment estimate of £40,000 (the property needed a full rewire, replastering, new boiler, kitchen, bathroom, internal doors, and a bedroom conversion), plus solicitor fees of £1,200 and other purchase costs, the initial picture showed money left in the deal of £26,400 after refinancing at 75% loan-to-value — pulling out £120,000 against the £160,000 end value.
That figure wasn't good enough. For a deal to be considered strong, we look for a return on investment (ROI) and return on capital employed (ROCE) of at least 20%, shown in green on the analyser. By reducing the offer price to £85,000, the figures transformed: 29% below market value, ROI of approximately 24%, and money left in the deal of around £16,250. That's a genuinely compelling return.
It's also worth factoring in your legal costs from the outset. Using a streamlined conveyancing service such as Muve — Online Conveyancing can help keep solicitor fees predictable and the transaction moving efficiently, which matters when you're trying to secure a time-sensitive below-market-value deal.
Making the Offer Without Burning Bridges
One of the most common mistakes new investors make is simply phoning an agent and stating a lowball figure. This can damage relationships and close doors before you've even got started. Instead, use what we call the "offer without offering" technique.
Rather than saying "I'd like to offer £85,000," you ask: "If I were to come in at around £85,000, do you think I'd be in the ballpark, or would I be a million miles off?" This approach lets you gauge the vendor's expectations and any competing offers, without formally committing or causing offence. In the example above, this technique resulted in an accepted offer of exactly £85,000 — and when the builder's quote came back at £36,999 rather than the estimated £40,000, the ROI improved further to just under 30%, with only £13,249 left in the deal.
Take Action and Start Finding Your Next Deal
Analysing a BRR deal doesn't need to take hours. With the right process — EPC data, sold comparables, a reliable deal analyser, and a smart approach to negotiations — you can assess whether a property is worth pursuing in well under 15 minutes. The discipline is in working backwards from your target figures, staying conservative with your estimates, and never letting enthusiasm override the numbers.
Start your property search at PropertyAlert.uk