Methodology

Data sources

Every property report and tool draws from one or more of the following authoritative sources. Where a source is free and public, we link to the original. You can verify our work directly with the source.

How we use AI

The narrative analysis in property reports is generated by an AI model (Anthropic Claude) reading only the data we've fetched from the sources above. The model is not allowed to fall back on its general training knowledge of your specific area.

The system prompt explicitly forbids the model from inventing specific numbers, naming institutions (schools, hospitals, transport stops) that aren't in the data, or substituting "general knowledge" about an area when data is missing. This is the most common failure mode for AI-generated property reports, and we've engineered around it.

Every fact in a report should be traceable to one of the data sources above. If you spot something that looks unsupported, email us at support@propertyreportuk.com and we'll investigate.

How fresh is the data?

Every report is generated at the moment you order it, pulling live data from each source. There's no cached "old report". Your report represents the freshest data each source has at generation time. The most recent month's sold prices and crime stats are typically about 2 months behind the current date because that's the lag built into the source feeds.

Free tool pages (mortgage calculator, EPC checker, etc.) fetch live data on each request as well. They don't cache.

What we don't do

• No formal valuations. Our valuation estimates are AI-derived from comparable sales and area data. They're not RICS surveys or formal red-book valuations. For a mortgage application or sale negotiation use a qualified surveyor.
• No structural surveys. We can't see if a roof is cracked, a wall is damp, or subsidence is present. Our reports are data-only. Always commission a Level 2 or Level 3 survey before purchase.
• No legal searches. We surface metadata about title and planning, but we don't replace conveyancing searches or the official Title Register. Your solicitor's searches catch easements, restrictions and chancel liability we don't see.
• No estate-agent referrals or financial product affiliates. We don't take referral fees, run advertising, or push you to specific brokers, lenders, or solicitors. The reports are the product.