Property rental estimate
GET /v1/property/{uprn}/rental-estimateWhat this property would let for, and on what basis. Always quote the basis: `unit_asking` is the property's OWN live rental listing (an asking rent, not an achieved one); `area_asking` is the median asking rent for its bedroom band in its postcode district — a locality statistic applied to one property, so quote the p25–p75 range with it rather than the median alone. `unit_hedonic`, a per-unit model, does not exist (gap G1).
Same call over MCP
Rent estimate with its basis and yieldproperty_rental_estimateAuthenticate with an API key from the API & MCP Hub. The same call is available as an MCP tool at the same price.
Reference
What GET /v1/property/{uprn}/rental-estimate returns
THE YIELD IS GROSS: annual rent over our valuation, before voids, management, maintenance, insurance, ground rent or service charge. A net yield is materially lower and we do not publish one — do not present the gross figure as what an investor keeps.
The LHA block is the local housing allowance for the property's broad rental market area. That is a HOUSING BENEFIT CAP, not a market rent: it is the floor for a supported tenancy and usually below the market median. The shared-room rate is included for an HMO room-by-room comparison. UK only.
Inputs
Before you call it
- uprn
- A UPRN is the Unique Property Reference Number every UK address carries. Narrow the address with address_autocomplete, which is free, then address_resolve returns the UPRN for 8 credits. property_summary and address_by_postcode return UPRNs too.
Request
Calling GET /v1/property/{uprn}/rental-estimate
curl "https://api.marketcode.ai/v1/property/200003448393/rental-estimate" \
-H "Authorization: Bearer $MARKETCODE_API_KEY"Send your API key as a Bearer token. Every response carries credits_charged and credits_remaining.
Inputs
Parameters
| Name | In | Type | Required | Description |
|---|---|---|---|---|
| uprn | Path | integer | Yes | |
| beds | Query | integer | No |
Price and licence
What it costs, and where the data comes from
Property rental estimate costs 1 credit per successful call over MCP and over REST, and the two surfaces share one credit balance.
The price covers licensed records in the response. A call that fails is not charged.
Credits are granted on sign-up and bought in packs; the pricing page lists every call.
Related
Endpoints used with Property rental estimate
- Commercial property report: RV, indexes, yield, owner2 credits
commercial_propertyThe commercial property report, by UPRN or by VOA UARN: the hereditament as the 2026 rating list describes it (rateable value, sector, description), the sector's rent index across the 2010/2017/2023/2026 lists and its capital index (national, plus the local authority where one exists), an income-basis value that capitalises the RV at the district's commercial auction net yield — with the yield's receipt, and `not_available` where the district published none — the auction history at the address, the district's commercial auction market by quarter, the registered owner and the lease. Blocks that cannot be derived today say `not_available` with the reason (the RV history per hereditament; the VOA measured area). RV is a rating measure at the antecedent valuation date, not passing rent — say so when you quote the income-basis figure. UK only.Same category - Council tax bandFree
council_tax_bandVOA council tax band for a property, from the official list.Same category - Energy rating, MEES and the retrofit gap1 credit
property_energy_retrofitThe energy picture for one property: current rating against the certificate's own potential, the points and letter bands available, the fabric and heating the assessor recorded, and MEES.Same category - Registered lease: term, unexpired years, flags1 credit
property_leaseHow long is left on the lease, and does it bite: the governing registered lease at this property with its receipt — term, unexpired years computed today, `is_short_lease` (under 80 years, where extension costs marriage value and lenders start refusing) and the under-60 flag, alienation clause, lease price paid, the enfranchisement note and the valuation note (the estimate does not adjust for a short term). `status: no_lease` with the reason when the register holds none; a freehold house is one such reason. UK only.Same category - Registered leases for up to 100 properties1 credit
property_lease_batch`property_lease` for up to 100 properties in one call, per-item outcomes (ok | no_lease | not_found | error) in input order. Charged per property answered — the sum of the single calls, never more. UK only.Same category - One composed document for a property5 credits
property_reportEverything we hold about one property, as one document — summary, the registered lease, the risk report with every flag three-valued, a rental estimate with its basis, the energy picture, and the planning decisions nearby. One price for the composition, cheaper than the sections bought separately.Same category
FAQ
Questions about Property rental estimate
How much does `property_rental_estimate` cost?
+
Property rental estimate costs 1 credit per successful call over MCP and over REST, and the two surfaces share one credit balance. The price covers licensed records in the response. A call that fails is not charged.
Do I need to resolve the address first?
+
Yes. property_rental_estimate takes a UPRN, not an address. Start with address_autocomplete (free) to narrow the address, then address_resolve (8 credits) to get the UPRN. An assistant with the MarketCode skills installed does both steps on its own.
How do I authenticate?
+
Send your API key as a Bearer token in the Authorization header. Keys are created in the API & MCP Hub, shown once and revocable. Every response carries the credits charged and your remaining balance.
Is there an MCP version?
+
Yes. The property_rental_estimate tool on the MarketCode MCP server is the same call at the same price, signed in with OAuth rather than a key, so Claude, ChatGPT, Codex and Cursor can run it in a conversation.
Where does the data come from?
+
The answer is computed by MarketCode. Coverage is the UK.
Can I store or republish the results?
+
The response includes records we license. Use them in your own analysis, reports and products; bulk redistribution of the raw records or building a competing dataset from them is not covered. Ask us if you need a redistribution licence.
Does `property_rental_estimate` change anything?
+
No. The tool is annotated read-only on the server, so it never writes to your data or ours and an assistant can call it without a confirmation step.
Try Property rental estimate on a real address.
30-minute call. We'll provision a key and walk through the endpoint on your use case.