Birmingham has sold tens of thousands of new-build flats in the past two decades, concentrated in Jewellery Quarter, Digbeth and city-centre apartment blocks. Yet those same new-build flats are far less likely to show up with a matched Energy Performance Certificate (EPC) than the city's older flat stock. Of the 24,088 Birmingham flats with at least one new-build sale on Land Registry's books, just 7.4% have a certificate matched on the EPC Open Data register. Among the 22,967 flats with no new-build sale on record, coverage is nearly five times higher, at 35.1%.
That's the reverse of what you'd expect. Every new home must carry a valid EPC before it can be marketed for sale, under the Energy Performance of Buildings (England and Wales) Regulations 2012. On paper, a freshly built flat should be one of the easiest properties to find a certificate for, not one of the hardest.
The coverage gap, by new-build status
| Flat group | Flats | EPC matched | Coverage |
|---|---|---|---|
| No new-build sale on record | 22,967 | 8,052 | 35.1% |
| At least one new-build sale on record | 24,088 | 1,792 | 7.4% |
Source: HM Land Registry Price Paid Data and EPC Open Data, flats in Birmingham, matched by address. Data fetched 27 October 2026.
This split sits inside a citywide flat coverage rate of 20.9%, already flagged as the lowest of the six West Midlands boroughs in an earlier look at the West Midlands' flat-vs-house EPC coverage gap. That piece didn't separate out how much of Birmingham's low flat coverage sits specifically in its new-build stock — this is that split.
A later sale is what actually finds a certificate
An EPC is logged when a home is built, sold or let, not on a fixed renewal schedule. So the clearest test of what's going on is whether a new-build flat has changed hands again since its original sale.
| New-build flats | Flats | EPC matched | Coverage |
|---|---|---|---|
| Resold at least once since | 9,646 | 1,250 | 13.0% |
| Never resold since | 14,442 | 542 | 3.8% |
A later resale more than triples the match rate, consistent with the certificate being picked up at the point of that second transaction rather than the original new-build sale. But even the "resold since" group's 13.0% remains well below the 35.1% seen among flats that were never new-build sales at all, so a later sale only partly closes the gap.
The more recent the new-build sale, the flatter the match rate
The sharpest pattern shows up inside the 14,442 flats that have only ever had their original new-build sale. Splitting these by the year of that sale produces a result that runs opposite to intuition: coverage falls as the sale gets more recent, then flattens out at well under 1% rather than continuing to fall.
| New-build sale year | Flats | EPC matched | Coverage |
|---|---|---|---|
| Before 2008 | 3,890 | 384 | 9.9% |
| 2008-2014 | 2,262 | 95 | 4.2% |
| 2015-2019 | 3,185 | 25 | 0.8% |
| 2020-2022 | 3,278 | 22 | 0.7% |
| 2023 onward | 1,827 | 16 | 0.9% |
If missing certificates reflected neglect by owners of older flats, the pattern would run the other way: newer flats, further from any renewal deadline, would show the highest coverage. Instead, flats sold new since 2015 are matched to a certificate at under 1%, despite an EPC being required at the point of their original marketing — and the rate has stopped falling further, sitting at roughly the same low level across the last three sale-year bands rather than continuing toward zero.
What's most likely going on
This isn't the first time a gap like this has shown up in this data. Tower Hamlets' new-build flats showed the same reversal, reported in an earlier look at Tower Hamlets' new-build EPC coverage: 6.8% coverage for new-build flats against 26.0% for older stock, with the same resale-triggers-a-match pattern and the same decline by sale year. Birmingham's version of the gap is wider in relative terms (a 4.7x difference between new-build and non-new-build coverage, against Tower Hamlets' 3.8x), even though the two boroughs have very different flat markets — Tower Hamlets' dominated by riverside and Canary Wharf-adjacent towers, Birmingham's by Jewellery Quarter conversions and city-centre apartment schemes. A separate look at Birmingham's own flat-versus-house EPC coverage found Birmingham has the widest flat/house coverage gap of the three biggest English conurbations tested so far; this new-build split accounts for a large share of why.
The most plausible explanation in both cases is a data-matching gap between how Land Registry records a new-build flat's address and how the same flat is listed on the EPC Open Data register. Large modern developments often use flat-numbering and block-naming conventions, floor and unit numbers, and marketing names for blocks, that can diverge between the two public datasets, particularly soon after completion. That points to a measurement limitation in matching two separate public datasets, not evidence that thousands of Birmingham flats are being sold without a legally required certificate.
Why it matters for anyone checking a flat
For a buyer or renter checking a specific Birmingham address, an absent certificate on the open register doesn't necessarily mean the flat has no valid EPC, especially if it was sold new within the last decade. It's worth asking a seller, letting agent or developer for the certificate directly rather than treating a blank record as the final word. One Jewellery Quarter development, Kettleworks on Pope Street, illustrates this directly: every flat checked in that block shows a Land Registry sale record but no matched energy rating on Homecost.
Try a Birmingham postcode such as B1 3DQ on Homecost to see what Land Registry and EPC data show for a specific address, or browse more cost intelligence guides covering EPC coverage across England's cities.