Gaffwise · for home buyers across the UK

Know what a home is really worth before you offer.

Gaffwise checks any listing against local prices, shows the full cost of buying it and gives you an opening offer and a walk-away number — workings shown.

Continue with Google How it works →

Free · Private to your household · England, Wales, Scotland and Northern Ireland

3 bed semi-detached house
Illustrative example · 1,050 sq ft · Freehold
Room to negotiate
Asking£295,000
£ / sq ft£281+8% vs local band
LTV90%
Monthly£1,470
Recommended offer range
Open
£268k Expect
£278k Walk away
£285k
  • P1 Any work needed after the survey?
  • P2 Similar house nearby sold for £272k last spring

From listing to offer, with the numbers on your side

Portals show you what's for sale. Gaffwise helps you decide what to pay for it.

£

A fair price, in context

Price per square foot against the local band, and recent sales nearby where they're published.

%

The full cost, for your nation

Deposit, loan to value, monthly payments and property tax under the rules where you're buying.

✓

An offer you can defend

Open, expect and walk-away figures, plus the questions to ask the agent first.

How it works

  1. 1

    Add a property

    Paste the details from any listing, add it by address, or type it in.

  2. 2

    Get a verdict

    Value, monthly cost and what's still unknown.

  3. 3

    Offer with confidence

    A number, a ceiling and the reasons — shared with your co-buyer.

Built for the whole UK

Each nation buys and taxes homes differently. Gaffwise follows the local rules and uses public data where it's available.

  • England

    Stamp Duty Land Tax · council tax · Land Registry sold prices · police.uk crime

  • Wales

    Land Transaction Tax · council tax · Land Registry sold prices · police.uk crime

  • Scotland

    LBTT · council tax · sold prices and crime from your own research

  • Northern Ireland

    Stamp Duty Land Tax · domestic rates · police.uk crime · sold prices from your own research

Comparables arithmetic, not a valuation — you still need a survey and a solicitor or conveyancer. Only your household can see your figures.