Building-stock intelligence · Live in London
Ratings, owners, heritage and what has changed, reconciled for 2 million London buildings. Move the pointer to look through the surface.
2,015,843 units · 33 boroughs · 7 public sources
Why it exists
The record
Scroll to move between the points. Real street, Walworth SE17; the values are illustrative.
Certified rating
D 61 · short of C
Applications
Three kinds of team, the questions they bring, and what the record answers before anyone books a survey.
Local authorities · ask
Every certified and modelled rating, side by side, never averaged. Filter by ward, tenure or fuel and the list is ready for the programme team.
Local authorities · ask
Rank streets by shortfall, ownership and feasibility together, so the first scheme lands where it can actually be delivered.
Housing associations · ask
Historic England listings and borough conservation areas sit on the same record as the certificate, so the constraint is visible before the survey is booked.
Housing associations · ask
Fifteen million recommendations from lodged certificates, with indicative cost bands, grouped per block and per archetype.
Investors & landlords · ask
Portfolio-wide screening against the 2030 standard, which is confirmed policy but not yet law. Each flag rests on the lodged certificate where there is one, otherwise on the modelled rating, labelled as such, with the plain-English reason it fell short.
Investors & landlords · ask
Registered company proprietors from HM Land Registry, matched to the building footprint and shown for display only.
Investors & landlords · ask
Annual satellite embeddings flag the roofs and plots that moved most since 2018, so re-surveys go where the change is.
Ways in
A browser workspace for the team: map, table and the record behind every row. Filter, rank, open a building, read where each number came from, export the target list.
The same record over a documented API, or deployed inside your own cloud project when the data cannot leave the estate. Per-figure source, licence and date on every response.
The register in numbers
As at September 2026 · GLA London Building Stock Model (OGL v3.0) · MHCLG EPC register
Questions
BuildGrade is built stock data for retrofit and ESG. It puts each building’s energy ratings, exposure to the minimum energy efficiency standards (MEES), registered company ownership, listed building and conservation area status, and retrofit options on one record, with the source, licence and date of every figure. It is run by BUILDGRADE LTD, a company registered in England and Wales (no. 17480475).
Teams that plan retrofit across many buildings at once: local authorities, housing associations, investors and landlords, and the practices and contractors that deliver the work for them. They use it to find the homes and premises that fall short, see what constrains each one and decide where a programme can start.
From public registers, each under its published licence: the GLA London Building Stock Model for building units, the MHCLG Energy Performance of Buildings register for certificates and assessor recommendations, Historic England’s National Heritage List for listed buildings, the GLA’s compilation of conservation areas, HM Land Registry’s company ownership data, the ONS, DESNZ and OpenStreetMap. The London data is as at September 2026: certificates lodged to 9 September (domestic) and 2 September (non-domestic), with the stock model and heritage layers imported on 12 September. It is updated in dated batches, not as a live feed, and every figure shows its source and date.
A certified rating comes from an energy performance certificate that an accredited assessor has lodged on the government register. A modelled rating is an estimate for a building without one; in London it comes from the GLA’s 2017 stock model. BuildGrade labels each and never averages the two together. In London, 1,357,455 of 2,015,843 building units (67.3%) hold a lodged certificate and a further 617,535 (30.6%) have only a modelled rating (September 2026).
London is the first live coverage: 2,015,843 building units across all 33 local authorities, the 32 boroughs and the City. Other UK cities are in preparation, starting with pilots for Bristol and Cardiff, which are not yet live. If you need somewhere outside London, email info@buildgrade.co.uk and we will tell you where it stands.
Yes, as a screen. Each unit is checked against the minimum energy efficiency standards using its lodged certificate where it has one, or its modelled rating where it does not, and every flag says which it rests on. The E floor is law for private lets: homes since April 2020 and non-domestic lets since April 2023. Band C for privately rented homes by 2030 is confirmed policy, not yet law (government response 21 January 2026; it needs legislation). The later non-domestic milestones are proposals, not law. BuildGrade labels each standard with its status. Screening counts are not compliance findings, because exemptions are not modelled.
Yes. Each unit records whether it sits in one of London’s 1,089 conservation areas (GLA London Datastore) and whether it matches a listed building, with the grade (Historic England’s National Heritage List for England), both imported in September 2026. Retrofit measures are screened against them before any survey: external wall insulation, for example, is never suggested for a unit in a conservation area or a listed building. This is general planning context for England, not legal advice, and Article 4 directions vary by borough.
The platform shows who owns commercial and corporate property, from HM Land Registry’s data on UK and overseas companies (CCOD and OCOD), with the source and data month. You can filter by owner type, build lists and add owners to your CRM as organisations. The BuildGrade End-User Terms, which everyone accepts when their account is set up, pass on HM Land Registry’s licence conditions: you are responsible for any contact you make with an owner, and the data may not be used for direct marketing or republished or passed on in bulk. BuildGrade does not contact owners on anyone’s behalf.
BuildGrade is in early access for design partners from October 2026. Book an intro call on the contact page or email info@buildgrade.co.uk. Access is by written agreement with BuildGrade Ltd, and signed-in users work at app.buildgrade.co.uk.
No. BuildGrade does not carry out energy assessments or lodge EPCs, and it does not survey, design, specify or install. It reads the certificates accredited assessors have lodged and sets them alongside other public records. Its outputs are not a substitute for a site survey, a PAS 2035 assessment or professional advice.