New: the hosted MCP server, sign-in without a key, and a Claude plugin · Methodology 1.12.6 is live.Changelog
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The place layer underneath property and location products.

Sourced, dated facts about every neighbourhood in Great Britain, with permanent place IDs, explained scores and a feed that says when a place changed. Built to go inside what you sell, kept current by us.

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You build the product. We keep the place underneath it true. One schema for England, Wales and Scotland. A permanent ID for every place. Source, period and confidence on every value, and a change feed that says whether the area moved or our method did.

43,064

Neighbourhoods

52,025

Places with a permanent ID

2.7M

Postcodes that resolve

906,487

Retired postcodes that still resolve

What we keep true

Twelve publishers, twelve clocks. Keeping them joined is the part nobody wants to own.

A team can call police.uk and a postcode API in a week. Keeping a dozen publishers, three census geographies and 906,487 retired postcodes joined and current is the work underneath every product that shows the place.

Three census geographies

England and Wales on 2021 census neighbourhoods, Scotland on 2022 data zones. Codes from the 2011 geographies still resolve, and boundary changes are recorded as successions.

Retired postcodes

906,487 retired postcodes resolve to the place they were in, with the month they were retired. A record keyed on a 2008 postcode still reads today.

Every publisher on its own calendar

police.uk is checked daily and loaded when it publishes. Flood maps land monthly in England and quarterly in Scotland and Wales. Deprivation indices change every few years. Each value carries the period it covers.

Gaps stated, never filled

Greater Manchester Police has published no street-level crime since July 2019, Scotland publishes none, and Wales and Scotland have no comparable school grades. The response says so instead of guessing.

Every release published

The methodology version is on every response and the changelog lists what each release moved, so a figure never changes unannounced.

PublisherOur refresh
Welsh GovernmentWelsh deprivationWIMD 2019Each new edition
Scottish GovernmentScottish deprivation, council-area crimeSIMD 2020 and crime 2025/26Each new edition
MHCLGEnglish deprivationIMD 2025Each new edition
Office for National StatisticsSale prices and census populationApr 2025 to Mar 2026Each quarterly release
OfstedSchool inspection outcomes31 Aug 2026Monthly
HM Land RegistryPrice paid salesJan 2024 to Aug 2026Monthly
police.ukStreet-level crime, England and WalesSep 2025 to Aug 2026Checked daily, loaded when published
Environment AgencyFlood-risk areas and warnings, England5 Oct 2026, warnings liveMonthly, warnings at request time
NaPTANPublic transport access points3 Oct 2026Monthly
Natural Resources WalesFlood maps, Wales2 Oct 2026Quarterly
OpenStreetMapAmenities5 Oct 2026Monthly
SEPAFlood maps, Scotland2 Oct 2026Quarterly

The latest period each publisher’s values cover, as served on 7 Oct 2026 · methodology 1.12.5

Who builds on it

Four kinds of product, one layer. Each plugs in differently; each reads the same record of every place.

Location data companies, property data and analytics, platforms where the place drives the choice, and AI property products.

01For location data companies

Put the structural picture beside your own data.

Footfall, mobility, address and geospatial companies already know how places perform or where things are. OneGoodArea adds what each place is, on one schema across Great Britain, licensed to go inside what you sell.

What your data gains

A permanent ID for every place

52,025 places from neighbourhood to nation, each with an ID that survives retired postcodes and redrawn boundaries. Key your records once.

Similar places and outliers

Find the neighbourhoods most like a site you know by signal signature, anywhere in Great Britain, or the ones moving unlike their peers.

History with every period

Crime by month from April 2023 and sales from January 2024, each value stamped with the period it covers, so your series and ours line up.

Licensed to go inside what you sell

A platform licence covers showing it in your product. A data partnership adds redistribution, so the layer can ship inside your own feeds.

See Intelligence

02For property data and analytics

Give every property the neighbourhood around it.

Property intelligence, research, investment and land platforms know the building. OneGoodArea supplies the place: sourced, dated facts and history for the neighbourhood, district and region behind every record.

What every record gains

Three levels of geography

Read a neighbourhood, or roll up to its neighbourhood group or district, from the same endpoint. A record and a portfolio read the same facts.

History with every period

Crime by month from April 2023 and sales from January 2024, each value stamped with the period it covers, so a series never mixes windows.

Prices and the sales behind them

The neighbourhood's median sale price from the ONS, with the HM Land Registry transactions it rests on.

Bulk from the first day

Map up to 1,000 records in one call or 20,000 as a job, then read every place with one key.

See Signals

03For property platforms

Show the place at the moment people choose.

Rental, home-search and portfolio products help people decide where to live, invest or lend. OneGoodArea puts the neighbourhood in front of them with its sources, so every figure on your screen can be explained.

What your users see

A score you can show

One 0 to 100 score for the purpose you set, with our weights or your own, and a sentence of reasoning for each dimension.

Facts in the language people use

Schools, crime, prices, transport and amenities for the postcode, each with its source and date, ready for a listing page or a brochure.

Told when it changes

Watch the places behind saved searches, portfolios or a mortgage book and receive a signed webhook when one moves.

Scotland included

Scotland's neighbourhoods on their own geography alongside England and Wales, so one integration covers every listing.

See Scores

04For AI products

Give your assistant facts it can cite.

Property assistants and agents need ground truth, not guesses. OneGoodArea returns sourced, dated values with a confidence and a reason, through the API or an MCP server your agent calls directly.

What your assistant gains

Citable by design

Every value names its source and period, so an answer can show where it came from.

Gaps stated, not filled

Where a publisher provides nothing, the value is empty and the response gives the reason, so the assistant never fills the gap with a guess.

Questions in plain English

Ask to rank or compare places and the plan behind the answer comes back with it, ready to replay without a model in the loop.

Twelve MCP tools

Place resolution, area briefs, scores, comparisons, peers, signals by category, portfolio watching and the methodology, callable from Claude, Cursor or any MCP client.

See the MCP server

How it arrives

One key, four ways in. REST, bulk, webhooks and MCP.

A REST API with a published OpenAPI specification, bulk mapping for a whole catalogue, signed webhooks for change, and an MCP server for the AI features in your product.

Open the API referenceRead the MCP guideRun a call in the playground

Why it holds up

Every number shows its receipts. The answer is in the response.

Your customers will ask where a figure came from and whether it is current, and your own team will ask why a place scored as it did.

Source, period and confidence on every value

Every figure names its publisher and the period it covers, with a confidence. A chart in your product carries its own footnote.

No invented numbers

Thin evidence returns no number rather than a guess, a ten-sale floor sits under every price, and a missing value comes with its reason.

Each nation on its own geography

England and Wales on 2021 census areas, Scotland on 2022 data zones. Percentiles are ranked within each nation, never across borders.

Versioned, every release published

The same input on the same version gives the same output. The version is on every response, and the changelog lists what each release moved.

One licensing story

Evaluate free, pilot on one workflow, then license the layer. The same answer on this page, on the pricing page and in the contract.

01 · Sandbox

500 calls a month, free

A developer key for your engineers to evaluate against, no card. Every product and the MCP server, not licensed for production.

02 · Pilot

40 days on one workflow

The missing context, the integration and one measured outcome, with us alongside you. Licence terms are drafted by day 30, so the pilot ends in a decision.

03 · Licence

Platform licence or data partnership

A platform licence covers showing OneGoodArea inside your product, in your own design, with attribution, from £2,000 a month. A data partnership adds redistribution rights for the feeds and exports your customers keep.

See pricing and the pilot

Frequently asked

Questions product teams ask us.

Can we show OneGoodArea data inside our product, under our own brand?

Showing OneGoodArea data inside your product is covered by a platform licence, in your own design, with attribution, from £2,000 a month. Redistributing the data itself, in feeds or exports your customers keep, needs a data partnership. The free sandbox gives you 500 calls a month to evaluate, no card. Both are described on /pricing.

Does it scale to listing-page traffic?

Yes. Cache per place at your edge and serve it yourself. Every value carries its period and the change feed tells you when something moved, so caches can be long and still right.

Can we use our own weighting?

Yes. Send weights per request, or save them as a preset and reference it by id. You can also rank places against your own cohort instead of the nation.

How do your place IDs relate to ONS codes?

Every neighbourhood keeps its census codes: 2011 and 2021 LSOA codes in England and Wales, 2022 data zone codes in Scotland. The place ID is permanent across boundary changes, and a postcode, a census code or the ID all resolve to the same place.

What is the smallest unit?

The neighbourhood: a census area of about 1,500 residents, an LSOA in England and Wales and a data zone in Scotland. There are 43,064 of them, every one with a permanent ID, and each rolls up to its neighbourhood group and district. Addresses and points are next.

How do you handle Scotland?

Scotland is on its own 2022 data zones, with SIMD for deprivation, Police Scotland council-area crime and SEPA flood maps. Same schema, same place IDs, ranked within Scotland.

How far back does the history go?

Crime by month from April 2023 across England and Wales, with Greater Manchester stated as a publisher gap. Sales from January 2024. Every stored value keeps the period it covers.

Can we send points, addresses or polygons instead of postcodes?

Today the input is a postcode, a place name, a census code or a place ID. Points, addresses and polygons are next on the roadmap. Until then, resolve a representative postcode or send the census code of the area.

How large a batch can we send?

1,000 records per call and 20,000 per job. A job is checked against your remaining quota before it starts, so a large batch never silently spends the month.

Does it work with the AI features in our product?

Yes. The MCP server works with any client that speaks the Model Context Protocol, including Claude and Cursor; the package is @oga-mcp/server and setup is at /docs/mcp. The API also answers plain-English questions at the query endpoint and returns the plan with the rows, so the same question can be replayed without a model.

What do you store about our users?

Nothing about them. We hold the postcodes or place IDs you send, an optional label you supply, your organisation and your keys. Everything we return is neighbourhood-level aggregate statistics.

Send us your locations.

Bring up to 1,000 of your postcodes or place codes and we will return them enriched, with a short read of what the data shows about them. Or take a sandbox key and call the API yourself.

Send us your locationsGet a sandbox key