Biodiversity net gain cost: BNG Credit and Unit Prices
The BNG Credit and Unit Prices carries 4 published figures read from 3 sources' own pages, from 639 to 650,000 GBP, read 24 October 2026.
3 of the 9 named sources read in full publish a figure; 6 publish none, read 24 October 2026.
By credit-tier
| Breakdown | Median | Range | Sources |
|---|---|---|---|
| credit-tierA4 | 125,000GBP | 125,000 to 125,000GBP | 1 |
| credit-tierA5 | 650,000GBP | 650,000 to 650,000GBP | 1 |
| credit-tierregister-fee | 639GBP | 639 to 639GBP | 2 |
Every figure, with its source
One row per published figure: the figure as the source's own page publishes it, the page, and the day it was read. A figure that is not on a page we read is not on this one.
| Source | Figure | Breakdown | Read |
|---|---|---|---|
| Defra - statutory biodiversity credit prices | 650,000GBP | A5 | 2026-10-23 |
| Defra - statutory biodiversity credit prices | 125,000GBP | A4 | 2026-10-23 |
| Natural England - register a biodiversity gain site | 639GBP | register-fee | 2026-10-11 |
| Natural England - biodiversity gain sites register: terms and conditions | 639GBP | register-fee | 2026-10-24 |
The sentence each figure was read from (4)
- Defra - statutory biodiversity credit prices, read 2026-10-23:
High Lakes Moderate alkalinity lakes £650,000 A5
- Defra - statutory biodiversity credit prices, read 2026-10-23:
High Rocky shore Moderate energy littoral rock £125,000 A4
- Natural England - register a biodiversity gain site, read 2026-10-11:
It costs £639 to register a biodiversity gain site.
- Natural England - biodiversity gain sites register: terms and conditions, read 2026-10-24:
Type of application for which a fee is payable Amount of the fee (the “Fee”) Register land on the Register (under regulation 7(1) of the Regulations) £639
Read in full, publishes no figure
6 named sources were read in full on the dates shown and print no usable figure. They are counted, never filled in.
- Defra - statutory biodiversity credits, read 2026-10-02: every candidate on the page was refused
- Defra - understanding biodiversity net gain, read 2026-10-02: every candidate on the page was refused
- GOV.UK - biodiversity net gain collection, read 2026-09-11: read in full and no accepted figure on the page
- Defra - statutory biodiversity metric tools and guides, read 2026-10-09: read in full and no accepted figure on the page
- Defra - biodiversity net gain statutory credit reports 2025 to 2026, read 2026-10-10: read in full and no accepted figure on the page
- The Biodiversity Gain Site Register (Financial Penalties and Fees) Regulations 2024, read 2026-09-12: read in full and no accepted figure on the page
Methodology
Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2).
3 of the 9 named sources that could be read published a usable figure; 6 published none and are recorded as not published, never filled in; 0 could not be read (blocked, dead or unreachable) and count nowhere.
The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source for each breakdown it prices, in GBP (a source's median where its page yielded several accepted sentences for one breakdown), so a page that gives figures for several breakdowns gives one for each and N counts 4 figures, never sentences; 20 candidate sentence(s) were refused by a reviewer with the reason recorded.
The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): one row per statutory credit tier per habitat type with its price and the date it took effect, beside the register and allocation fees, kept as a SERIES across the six-monthly reviews so the table can say what a unit cost a year ago and what the announced change is - which the guidance itself does not keep, because each revision replaces the last.
Joined to the survey price index, it gives the only number the buyer actually plans against: the total ecology cost of a planning application, survey plus units.
20 candidate sentences on these pages were refused by a reviewer; each refusal and its reason is recorded in the review ledger.
Sources (9)
- Defra - statutory biodiversity credit prices(the publisher's own terms; quoted for reporting and comment)
- Defra - statutory biodiversity credits(the publisher's own terms; quoted for reporting and comment)
- Defra - understanding biodiversity net gain(the publisher's own terms; quoted for reporting and comment)
- GOV.UK - biodiversity net gain collection(the publisher's own terms; quoted for reporting and comment)
- Natural England - register a biodiversity gain site(the publisher's own terms; quoted for reporting and comment)
- Natural England - biodiversity gain sites register: terms and conditions(the publisher's own terms; quoted for reporting and comment)
- Defra - statutory biodiversity metric tools and guides(the publisher's own terms; quoted for reporting and comment)
- Defra - biodiversity net gain statutory credit reports 2025 to 2026(the publisher's own terms; quoted for reporting and comment)
- The Biodiversity Gain Site Register (Financial Penalties and Fees) Regulations 2024(the publisher's own terms; quoted for reporting and comment)
Cite or embed this figure
Cite or embed this figure
The BNG Credit and Unit Prices carries 4 published figures read from 3 sources' own pages, from 639 to 650,000 GBP, read 24 October 2026.
3 of the 9 named sources read in full publish a figure; 6 publish none, read 24 October 2026.
BNG Credit and Unit Prices, credit-tier A4: median 125,000 GBP across 1 source, read 24 October 2026.
BNG Credit and Unit Prices, credit-tier A5: median 650,000 GBP across 1 source, read 24 October 2026.
BNG Credit and Unit Prices, credit-tier register-fee: median 639 GBP across 2 sources, read 24 October 2026.
Cite as: "Asbestos Survey Cost BNG Credit and Unit Prices", updated 2026-10-24, https://asbestossurveycost.co.uk/datasets/bng-credit-and-unit-prices/.
Download the CSV (4 rows, computed 2026-10-24)