RFPGBRR & BRRR Strategy: How to Actually Cost the Refurb
The BRR (Buy, Refurbish, Refinance) and BRRR (Buy, Refurbish, Rent, Refinance) strategies live or die on one number: the real refurbishment cost. Guess low and the refinance doesn't stack up. Guess high and you walk away from a deal that would have worked.
What is BRR / BRRR?
You buy a property below market value (often needing work), refurbish it to raise the value, then refinance against the new, higher valuation to pull most or all of your capital back out — leaving you with a tenanted asset and little to no money left in the deal. The strategy only works if the refurb cost estimate going in is accurate; most deals that fail do so because the refurb ran over budget, not because the purchase price was wrong.
Typical refurb cost ranges (UK, per property)
| Work type | Typical range |
|---|---|
| Cosmetic refresh (paint, flooring, kitchen face-lift) | £3,000 – £8,000 |
| Full cosmetic + new kitchen & bathroom | £10,000 – £20,000 |
| Structural / rewire / replumb | £20,000 – £45,000+ |
| Extension or loft conversion | £35,000 – £70,000+ |
These are national averages and vary heavily by region, trade availability, and property condition. They are a starting point for sanity-checking a deal, not a quote — always get a proper itemised estimate before offering.
Why refurb estimates go wrong
Most BRR investors either guess based on a walk-round with a notepad, or wait weeks for a builder's quote before they even know if the deal is worth pursuing. Both are slow and both miss things — a fuse box that needs replacing, damp behind a wardrobe, a boiler that's on its last legs. Every missed item comes straight off your refinance headroom.
Scan a property and get an itemised refurb estimate →How RFPG helps on a BRR deal
Film a walkthrough on your phone — RFPG reads the footage and produces a per-room, per-trade cost estimate in minutes, before you've even left the viewing. It flags likely issues (dated consumer units, visible damp, ageing boilers) so nothing gets missed on the drive home. It's an estimate, not a RICS survey — use it to sanity-check a deal fast, then get a formal survey once you're seriously proceeding.
FAQs
Is BRR still viable in 2026? Whether BRR works for you depends on your own circumstances and your finance, and nothing here is advice. Tighter refinance criteria and higher rates than the 2010s mean refurb-cost accuracy matters more than it used to.
What refurb cost buffer should I add? Typical published ranges are a 10–15% contingency on top of any estimate, formal or informal, for the things that only show up once you open the walls. We cannot verify these figures.