House Value Calculator by Postcode
See how your property stacks up against actual sold prices — with 30 years of historical context.
Your property
Three quick details — instant approximate valuation.
30-year price history
Average sale price · HM Land Registry · 1995–present
Nearby sectors
Frequently Asked Questions
Q.How accurate is the house price calculator?
It uses real sold price data from the HM Land Registry to produce a market-based estimate. Because it works at postcode sector level (e.g. SW1A 1), it covers a wider area than a street-level valuation would — so treat it as a reliable approximation rather than a precise figure. It also cannot see the condition of your home — a pristine property with a new kitchen will always beat a "doer-upper" on the same street. Use this as a solid starting point grounded in actual local sales, then refine with an agent appraisal.
Q.What are the benefits of online property valuation?
An instant, unbiased figure without inviting estate agents over. Perfect for tracking equity growth, refinancing research, or curiosity. Helps you enter negotiations armed with hard data on what similar homes actually sold for.
Q.Why show distribution, not just average?
Averages hide outliers. A few large detached sales can pull the mean sharply upward. The 9th–91st percentile range shows the typical spread — where the middle 82% of sales actually land.
Q.What's the difference between average and median?
Average (mean) sums all prices and divides by count — sensitive to outliers. Median is the middle value when sorted — a truer picture of "typical" in skewed markets. We show both so you can triangulate.
Q.How far back does the history go?
We show 30 years — 1995 to present — based on HM Land Registry records. The chart shows how average sale prices have moved year by year across the sector.
Q.How fresh is this data?
The dataset is up to date as of April 2026, using the latest available HM Land Registry release. Sales typically appear 2–3 months after completion, so the most recent transactions may not yet be reflected. In a fast-moving market, always combine this with current portal listings.
Property types
All market data is sourced directly from the HM Land Registry Price Paid Data, ensuring you see the real numbers properties changed hands for.
Beyond the price tag
The sold price is just the beginning. Four official tools to uncover the full story of any property.
Flood Risk
Never skip this. Check if an area is at risk from rivers, sea, or surface water flooding.
Check government map →Crime Rates
See what's really happening on a street. Maps antisocial behaviour, burglary, and more.
View police crime map →Internet Speed
Vital for modern life. Don't assume it's good everywhere. Check available speeds first.
Check coverage →Schools
Catchment areas are strict. Verify local school ratings and admissions criteria.
Compare schools →Asking vs. Sold Price
What to trust, and what to question.
It's easy to get excited by asking prices on portals, but remember: asking price is a wish, sold price is reality. Estate agents often value high to win instruction. The data we show is the hard cash buyers actually paid.
Timing note: Land Registry data typically lags by about 3 months. In a rapidly changing market, always combine this with current listings for the full picture.
Professional surveyors and lenders rely on this same sold data — not asking prices — to value homes for mortgages.