{"uid":"cap_vPEqTsoRxNdZnG_C1-YQy","slug":"saylor-innovations-uk-house-price-index-1b3ded87","name":"Saylor Innovations UK House Price Index","description":"UK house price index by region from HM Land Registry - average price, annual and monthly change, sales volume and prices by property type and buyer type","url":"https://saylorinnovations.com/api/uk/house-prices?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"months":{"type":"string","description":"optional 1-36, default 12"},"region":{"type":"string","description":"Region slug such as london, england, scotland, wales, greater-manchester (default united-kingdom)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["region","latest","history"],"properties":{"note":{"type":"string","description":"Caveat or context for reading the result"},"slug":{"type":"string","description":"URL-safe identifier"},"latest":{"type":"object","properties":{"flat":{"description":"Average price of flats, null when not published"},"index":{"description":"Index value"},"detached":{"description":"Average price of detached houses, null when not published"},"terraced":{"description":"Average price of terraced houses, null when not published"},"sales_volume":{"description":"Sales volume"},"average_price":{"description":"Average price"},"semi_detached":{"description":"Semi detached"},"cash_buyers_price":{"description":"Cash buyers price"},"change_year_percent":{"description":"Change year, as a percentage"},"change_month_percent":{"description":"Change month, as a percentage"},"mortgage_buyers_price":{"description":"Mortgage buyers price"},"first_time_buyer_price":{"description":"First time buyer price"}},"description":"Most recent value or version"},"region":{"type":"string","description":"Region"},"source":{"type":"string","description":"Data source the values come from"},"history":{"type":"array","items":{"type":"object","properties":{"flat":{"description":"Average price of flats"},"index":{"description":"Index value"},"detached":{"description":"Average price of detached houses"},"terraced":{"description":"Average price of terraced houses"},"sales_volume":{"description":"Sales volume"},"average_price":{"description":"Average price"},"semi_detached":{"description":"Semi detached"},"cash_buyers_price":{"description":"Cash buyers price"},"change_year_percent":{"description":"Change year, as a percentage"},"change_month_percent":{"description":"Change month, as a percentage"},"mortgage_buyers_price":{"description":"Mortgage buyers price"},"first_time_buyer_price":{"description":"First time buyer price"}}},"description":"Historical values, in time order"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_DEkNG4i9SAthpNiyHcvAF","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns HM Land Registry UK house price index data by region, including average prices, annual/monthly changes, sales volume, and breakdowns by property type and buyer type","exampleAgentPrompt":"Can you pull the latest UK house price index data for London, showing the last 6 months of history — I want to see the average price, annual and monthly change, and how detached vs flat prices compare?","exampleUseCases":[{"title":"Regional property investment research","prompt":"I'm thinking about investing in property in Greater Manchester — can you get me the latest average house price there, how prices have changed over the past 12 months, and what the split looks like between detached and terraced homes?"},{"title":"First-time buyer affordability check","prompt":"What's the current average first-time buyer price across England, and how has it changed year-on-year? Also show me the last 6 months of history so I can see the trend."},{"title":"Scotland vs Wales house price comparison","prompt":"Can you fetch the latest house price index data for both Scotland and Wales — I want to compare their average prices, annual percentage changes, and sales volumes side by side."}],"resultDescription":"Returns a JSON object with the region name and slug, the most recent month's data (average price, index value, annual and monthly percentage changes, sales volume, prices by property type — detached, semi-detached, terraced, flat — and prices by buyer type — first-time buyer, cash buyer, mortgage buyer), plus a history array of up to 36 months of the same fields, and a source attribution string.","failureModes":["Invalid region slug returns an error or empty result","Requesting more than 36 months returns an error or defaults to maximum","Data may be delayed 1-2 months as HM Land Registry releases figures with a lag","Some fields (e.g. flat prices, sales volume) may be null for certain regions or time periods where data is not published","Network or payment (x402) failures result in no data returned"],"whenToPreferThis":"Choose this endpoint when you need official UK government house price statistics broken down by region, property type, or buyer type. It is sourced directly from HM Land Registry, making it authoritative for UK residential property data. Prefer this over general web search when you need structured, machine-readable historical time-series data at £0.01 per call. Not suitable for listing individual properties for sale, rental data, or non-UK markets.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T00:33:19.288Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-uk-house-price-index-1b3ded87"}