Broker Package · Pay as you go
Flood band, EPC, planning history and HMLR comparables by UPRN: landed at AIP, not surfaced at valuation when the case is already on the clock. Drops into Acre, Smartr365, OneDome, MyMortgageHub or your own LLM tool-call. Built on residential property data from a licensed listings feed.
First top-up matched 100% (£50 → 10,000 tokens) · No subscription needed · Nothing to cancel · Tokens never expire.
One home, every signal
A real semi-detached on Peregrine Road, Norwich NR7, marked Sold STC on 6 October. The house number is withheld here. This is what a mortgage broker sees before writing a word, and the letter it could send.
Sold STC on 6 Oct: the sellers are buying their next home and need a mortgage for it, or to move the one they have.
EPC C, B possible: worth checking for a green mortgage rate.
Asking £270,000 at Sold STC: the size of the loan in view.
Sold on Peregrine Road? The mortgage for your next home, sorted this week
Congratulations on agreeing the sale of your home on Peregrine Road.
If you are buying next, the mortgage is the step that holds a chain up. We can tell you this week whether to move your current deal or take a new one, and what you can borrow.
We compare lenders for you, including green mortgages for energy-efficient homes.
Book a call this week and we will have options for you within a day.
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Captured from Homedata's API and Lead Source on 17 Oct 2026. Solar figures are estimates from the roof's size and pitch. Rent is an estimate from nearby lettings. Its listing photos were tagged by an AI image model, 30 Sep to 3 Oct 2026: room types read at 80% confidence or more; the model's other tags are not shown. Price growth is for the NR7 district, not this home: the median sold price over the year to 22 May 2026 against the year before, captured 18 Oct 2026. Trees, ground movement and clay from our ground stability data, captured 18 Oct 2026: tree heights are measured, root reach is inferred; ground movement is the nearest satellite reading, for the area rather than this building. Figures marked derived are worked out from the record's own fields.
Mover data for mortgage brokers: every home the day it goes Sold STC
The data lands at fact-find, not at valuation. By the time the surveyor flags it, the client has already paid for the survey and the case is on the clock.
The flood-band down-val
Client offers £340k on a riverside terrace in Shrewsbury. AIP goes in clean. Valuation comes back with a flood-zone 3 caveat and a £25k haircut, and your client’s already £600 down on survey and search fees. A flood band on the UPRN at fact-find would have priced that risk in before the offer ever went on the property.
The flat that wouldn’t pass on sqft
Sub-1,000sqft flat, client’s a complex-prime self-employed, lender has a hard floor area cut-off you only spot when the BDM emails back. EPC floor area on the UPRN tells you that in ten seconds at AIP, not three days into a manual underwrite when the relationship’s already burned.
The asking-price story that didn’t hold up
Vendor’s “firm at £475k”, but the listing history shows it was on at £510k for nine months, reduced twice, withdrawn, relisted. A comparable evidence pack of nearby HMLR sold prices ranked by similarity gives you a defendable number for the valuation appeal and a straight conversation with the client.
Help clients understand the full acquisition cost
Share our free stamp duty calculator: covers first-time buyers, home movers, buy-to-let, and non-UK residents. No signup required.
What you get
Per UPRN, banded Very Low → High with plain-English descriptions. The flags surveyor reports, conveyancing and lender underwriting all care about: surfaced at AIP instead of the third week.
Surface water + river/sea flood risk band. The single biggest insurer + lender concern outside London.
GET /risks/flood/?uprn= Affected-area band. Drives mitigation requirements and disclosed in modern surveys.
GET /risks/radon/?uprn= Coal-mining reporting area + features. Triggers Coal Authority searches in the affected belts.
GET /risks/coal_mining/?uprn= Road, rail, and aircraft noise bands. Affects valuation premium and resaleability.
GET /risks/noise/?uprn= One UPRN → four parallel calls → the underwriting checklist answered. Most CRM integrations call all four at point-of-application.
What you get
Property record, EPC, planning, roof, dimensions. All UPRN-keyed, all behind one key. Comparables, listing history and address reveal stay available as enterprise products, arranged per customer: the same comparable evidence is included in the complete property profile.
Bedrooms, bathrooms, type, floor area, construction age, garden, parking, tenure flag. The fields underwriters key on every case.
GET /properties/{uprn}/ Current + potential energy efficiency, EPC floor area, last assessment date, expiry. The green-mortgage and BTL-compliance signal.
GET /epc-checker/{uprn}/ HMLR-confirmed sold prices for similar nearby properties, ranked by similarity. The defence pack for a challenged valuation. The standalone endpoint is arranged per customer rather than sold self-serve; the same comparable evidence is included in the complete property profile.
GET /comparables/{uprn}/ Arranged per customer Every listing ever recorded against the property: added, reduced, sold STC, withdrawn. The early-warning signal on overpriced stock.
Planning applications across 300+ LPAs (PlanIt) plus building footprint, roof shape, solar suitability. Catches conversions and extensions.
GET /planning/search/ (5) · /properties/{uprn}/dimensions/ (1) Map a live on-market listing to its real display address and government-issued UPRN.
What it covers
UPRN as the universal join key. Structured JSON, idempotent reads. Drop into the broker stack you already use, no PDF parsing, no portal lookups, no per-LPA integration work.
Drop the UPRN on a contact, hydrate property fields server-side or via webhook. Tested integrations include Twenty CRM, HubSpot custom objects and bespoke broker tooling.
Every endpoint returns LLM-tool-call-shaped JSON: typed fields, plain-English bands. Build a Claude / OpenAI agent that pulls a full case profile from a single address.
Reads are cache-friendly and safe to re-run. Retries cost nothing. Webhooks can refresh stored data without de-duping logic in your CRM.
Worked example
Address → UPRN → all four risks + EPC + property record in parallel. The questions every underwriter asks, answered programmatically in under a second.
curl --get "https://api.homedata.co.uk/address/match/" \ --data-urlencode "address=10 Downing Street" \ --data-urlencode "postcode=SW1A 2AA" \ -H "Authorization: Api-Key YOUR_API_KEY" # 200: address-level retrieve body plus address_resolution; 5 tokens. # 422: reason no_match or multiple_matches; never charged. # Use the returned UPRN for further property data.
import requests
headers = {"Authorization": "Api-Key YOUR_API_KEY"}
response = requests.get(
"https://api.homedata.co.uk/address/match/",
params={"address": "10 Downing Street", "postcode": "SW1A 2AA"},
headers=headers,
timeout=30,
)
if response.status_code == 422:
raise ValueError("Check the address: " + response.json()["reason"] + ". No charge.")
response.raise_for_status()
matched = response.json()
print(matched["uprn"], matched["address_resolution"])
# Address fields are already included. Enrich by UPRN if needed.
epc = requests.get(
"https://api.homedata.co.uk/epc-checker/" + str(matched["uprn"]) + "/",
headers=headers, timeout=30,
)
epc.raise_for_status()
print(epc.json())
// Run on your server; keep the API key out of browser code.
const headers = { Authorization: `Api-Key ${process.env.HOMEDATA_API_KEY}` };
const params = new URLSearchParams({
address: '10 Downing Street', postcode: 'SW1A 2AA',
});
const response = await fetch(
`https://api.homedata.co.uk/address/match/?${params}`, { headers },
);
const matched = await response.json();
if (response.status === 422) {
throw new Error(`Check the address: ${matched.reason}. No charge.`);
}
if (!response.ok) throw new Error(`HTTP ${response.status}`);
console.log(matched.uprn, matched.address_resolution);
We’re a property-data layer. Not the whole stack. We’d rather tell you that up front than have you find out at month two.
Pricing
Transparent token weights: most property data costs 1 token, address match is 5 tokens, retrieve is 5 tokens. Budget your API costs the same way you budget any line item. Pay as you go with one-off top-ups of any amount from £20, or add tokens every month. A monthly subscription earns up to 75% bonus tokens: change the amount or stop any time.
Pay as you go
100 tokens = £1First top-up matched 100%
Monthly
£50 a month5,500 tokens a month
+10% bonus tokens
Monthly
£250 a month30,000 tokens a month
+20% bonus tokens
100 tokens = £1 · Top up from £20 · First payment matched 100%.
Four environmental risk endpoints (flood, radon, coal mining, noise), EPC ratings, full property records (bedrooms, type, floor area, tenure, construction age), planning applications across more than 300 LPAs, and roof and dimensions data: all via a single REST API. Covers England and Wales. Comparables, listing history, the live on-market feed and UPRN + address reveal are enterprise products, arranged per customer rather than sold self-serve; the same comparable evidence is included in the complete property profile.
No, and that's deliberate. We ship the verified facts (risk bands, EPC scores, comparable prices, planning and roof data) UPRN-keyed and machine-readable. Your CRM, sourcing tool or LLM does the decisioning. Lender-criteria overlays change weekly per lender; we don't try to model them.
Pay as you go: 100 tokens = £1, and your first top-up is matched 100% (add £50, get 10,000 tokens). No subscription needed, nothing to cancel.
Yes: that's what it's built for. UPRN is the universal join key, every endpoint returns structured JSON, reads are idempotent and cache-friendly. Tested integrations include Twenty CRM, HubSpot custom objects, and tool-calling from Claude / OpenAI / Anthropic SDKs.
Pay as you go, 100 tokens = £1, first top-up matched. Get your key and test with real data.