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Data catalogue/ EPC & energy/ EPC

EPC API: energy performance certificate data for UK properties

The UK government's free EPC open data endpoint was scheduled to close on 30 May 2026. Homedata provides a stable, developer-friendly EPC API across 29 million UK properties, returning the certificate wherever one has been lodged. Same data, clean JSON.

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Sample responseJSON
{
  "uprn": "100023336956",
  "address": "14 Victoria Road, Bristol BS8 4ES",
  "current_rating": "D",
  "current_score": 63,
  "potential_rating": "B",
  "potential_score": 84,
  "environmental_impact": "D",
  "total_floor_area": 124.0,
  "construction_age_band": "1930-1949",
  "lodgement_date": "2022-07-14",
  "certificate_reference": "0123-4567-8901-2345-6789"
}

What's in the API

EPC rating (A–G)

Current and potential energy efficiency rating with numeric score (1–100). Environmental impact rating also returned.

Floor area

Total floor area in square metres from the EPC record. Used for price-per-sqm calculations and AVM models.

Construction age band

Age band from the EPC (e.g. "1930–1949", "2020–2029"). Filter property portfolios by era.

Certificate date

Lodgement date: flag certificates expiring within 10 years before they become a compliance gap.

Improvement recommendations

Recommended measures, estimated costs, and potential savings from the EPC assessor's report.

The API

Sample response

{ "uprn": "100023336956", "address": "14 Victoria Road, Bristol BS8 4ES", "current_rating": "D", "current_score": 63, "potential_rating": "B", "potential_score": 84, "environmental_impact": "D", "total_floor_area": 124.0, "construction_age_band": "1930-1949", "lodgement_date": "2022-07-14", "certificate_reference": "0123-4567-8901-2345-6789" }

If you call epc.opendatacommunities.org today, Homedata serves the same data from a stable, supported endpoint. Cleaner API, pay as you go.

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Common EPC API use cases

Portfolio EPC compliance

The Government has proposed that landlords achieve EPC band C by 2030, legislation has not yet been enacted. Bulk-screen your portfolio via UPRN list now to identify which properties will need improvement.

Mortgage lending

Green mortgage eligibility checks, retrofit lending, and portfolio risk scoring all require fast EPC lookups per property.

PropTech AVM models

Floor area from EPC is the most reliable proxy for property size, used in automated valuation models and price-per-sqm calculations.

Pricing

EPC lookups cost one token each and take the same API key as every other endpoint. Pay as you go, 100 tokens = £1.

Pay as you go

100 tokens = £1

most calls 1 token

£50 a month

5,500 tokens a month · +10% bonus

£250 a month

30,000 tokens a month · +20% bonus

£500 a month

67,500 tokens a month · +35% bonus

Top up any amount from £20 and get exactly the tokens you pay for. Add tokens monthly instead and earn bonus tokens: 10% on any amount, up to 75% from £2,500. Change the amount or stop any time; unused tokens roll over.

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29MUK properties, by UPRN
36.6Maddresses indexed
26 yrsof listing events, since 2000
23MEPC certificates on file
7licensed and official sources
Live status →

Pull this data for your own addresses.

100 tokens = £1 · Top up from £20 · First payment matched 100%.

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Questions

Frequently asked questions

Full answers in the API & data FAQ →

What is happening to the government EPC endpoint?

The government's EPC open data portal ( epc.opendatacommunities.org ) was scheduled to be retired on 30 May 2026. Homedata's EPC API uses the same underlying data with a stable, supported endpoint.

How many properties have EPC data?

Approximately 24 million UK properties have an EPC certificate lodged. Properties built before mandatory EPC requirements (typically pre-2008 with no recent sale or rental) may not have a record.

Can I look up EPC by address or postcode?

Yes: pass a UPRN, full address, or postcode. Address and postcode lookups return all matching properties with their EPC records.

Is EPC data included for every account?

Yes. Basic EPC lookups (current rating, score, floor area) cost 1 token: 100 tokens = £1.

Related data

Related data endpoints

Land Registry

Sold prices and title records: combine with EPC for richer property intelligence.

Planning Permission

Planning application history: useful for EPC improvement projects requiring approval.

Government Data API

All government open datasets: EPC, Land Registry, planning, and more in one API.

More in EPC & energy

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