Mouseprice vs Property Passport UK: Property Valuation Tool Compared

What Mouseprice is

Mouseprice is a UK property data site that combines Land Registry sold prices with an automated valuation model (AVM) and a paid report service. It has been running for around two decades and is best known for offering a free property valuation lookup for any UK address, similar in concept to the Zoopla Estimate.

Mouseprice monetises through advertising, paid premium reports, and lead generation for related property services.

What Property Passport UK is

Property Passport UK is the national property data registry for England and Wales. It aggregates verified data from HM Land Registry, the EPC Register, Ordnance Survey, and the Environment Agency into one record per property, identified by its Unique Property Reference Number (UPRN). All 19.35 million properties in England and Wales are covered. Search is free with no account required.

Side-by-side comparison

What Mouseprice does well

Mouseprice is good at offering a free first-pass valuation for any UK address. The estimate is similar in approach to the Zoopla Estimate: an automated model trained on Land Registry sold prices and other inputs. For users who want a quick "what is this worth" answer, Mouseprice is functional.

The free tier covers basic data. The premium reports include more detailed analysis and additional comparables.

The limits of automated valuations

Mouseprice's valuation, like all AVMs, has the same limitations:

1. Improvements are not visible: a recent extension, loft conversion, or major refurbishment is not reflected in the model

2. Condition is not visible: a tired property is valued the same as a refurbished one of the same size

3. Recent sales drive the model: in a rising or falling market the model lags reality

4. Outliers throw it off: one unusually high or low sale can skew the estimate

5. Confidence varies: high in standardised areas with many comparable sales, low in unique or character properties

For a serious buying or selling decision, a RICS valuation or surveyor's market assessment is the right tool. AVMs are useful for sanity checks and rough orientation, not for committing to a price.

What Mouseprice does not do

Like other AVM-focused tools, Mouseprice does not show:

• The verified EPC rating from the official EPC Register
• The Environment Agency flood zone classification
• Listed building status from Historic England
• Conservation area designation from Local Authority records
• Title tenure detail from HM Land Registry
• The UPRN

These are the data items a buyer needs in addition to a price estimate to make a real decision. A property with a "good" valuation can still have an expired EPC, be in a flood zone, or have a short lease, and the buyer needs to know all of this before making an offer.

What Property Passport UK does that Mouseprice does not

Property Passport UK does not offer an automated valuation. It is not a valuation tool. What it does offer is verified property data sourced directly from official UK government registers, which is more useful for due diligence than any AVM number.

Search any address at [/search](/search) to see:

• Sold price history from HM Land Registry (same source as Mouseprice)
• Current EPC rating and expiry from the EPC Register
• Environment Agency flood zone
• Listed building status and grade from Historic England
• Conservation area from Local Authority records
• Title tenure from HM Land Registry
• UPRN from Ordnance Survey

For a complete picture, use both: Mouseprice (or Zoopla) for the price estimate, Property Passport UK for the verified data layers behind the price. Or use Property Passport UK as the starting point and then commission a RICS valuation if you want a properly defensible price figure.

When to use each

Use Mouseprice when you only want a quick automated price estimate.

Use Property Passport UK when you need verified data on a property for buying, selling, due diligence, area research, or any decision with real consequences. The platform is free, no account required, and covers every property in England and Wales. Start at [/search](/search).

Summary

Mouseprice offers an automated valuation tool similar to the Zoopla Estimate. It is useful for a quick price check but does not show the verified property data layer. Property Passport UK does not generate valuations but does show official EPC, sold price history, flood risk, listed status, and tenure for every one of the 19.35 million properties in England and Wales. Use Mouseprice for a price guess, use Property Passport UK for the verified facts behind the price.

Look up any UK property on Property Passport UK

Property Passport UK is the national property data registry for England and Wales, with verified data on all 19.35 million properties sourced directly from HM Land Registry, the EPC Register, Ordnance Survey, and the Environment Agency. Search any address at [/search](/search). Free, no account required.

Related guides

• [Compare Property Passport UK to other portals](/compare)
• Rightmove vs Property Passport UK
• Zoopla vs Property Passport UK
• How to look up any property in England and Wales
• How Property Passport UK sources data
• How to find the UPRN of any property