# Construction cost inflation UK: UK Construction Cost Series

> The median published figure in the UK Construction Cost Series is 1.10 percent across 6 figures from 2 sources' own pages (range 0.10 to 4.90 percent), read 26 September 2026.

Basement Excavation Cost · https://basementexcavationcost.co.uk/datasets/uk-construction-cost-series/ · computed 2026-09-26

**Median published figure:** 1.1 % (range 0.1 to 4.9 %; 6 sources with a figure; 2 of 5 sources read publish one).

2 of the 5 named sources read in full publish a figure; 3 publish none, read 26 September 2026.

The median is unchanged since 25 September 2026 (was 1.10 percent across 6).

## By series

| Breakdown | Median | Range | Sources |
|---|---|---|---|
| series total construction output, three-month change to July 2026 | 0.5 % | 0.5 to 0.5 % | 1 |
| series new construction work, three-month change to July 2026 | 0.4 % | 0.4 to 0.4 % | 1 |
| series total construction output, monthly change July 2026 | 0.1 % | 0.1 to 0.1 % | 1 |
| series producer input prices, annual rate to July 2026 | 4.9 % | 4.9 to 4.9 % | 1 |
| series producer output (factory gate) prices, annual rate to July 2026 | 3.1 % | 3.1 to 3.1 % | 1 |
| series producer input prices, monthly change July 2026 | 1.7 % | 1.7 to 1.7 % | 1 |

## Every figure, with its source

One row per source: the figure the source's own page publishes, the page, and the day it was read.

| Source | Figure | Breakdown | Read |
|---|---|---|---|
| [ONS producer price inflation](https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/producerpriceinflation/latest) | 4.9 % | producer input prices, annual rate to July 2026 | 2026-09-11 |
| [ONS producer price inflation](https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/producerpriceinflation/latest) | 3.1 % | producer output (factory gate) prices, annual rate to July 2026 | 2026-09-11 |
| [ONS producer price inflation](https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/producerpriceinflation/latest) | 1.7 % | producer input prices, monthly change July 2026 | 2026-09-11 |
| [ONS construction output in Great Britain](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/bulletins/constructionoutputingreatbritain/latest) | 0.5 % | total construction output, three-month change to July 2026 | 2026-09-11 |
| [ONS construction output in Great Britain](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/bulletins/constructionoutputingreatbritain/latest) | 0.4 % | new construction work, three-month change to July 2026 | 2026-09-11 |
| [ONS construction output in Great Britain](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/bulletins/constructionoutputingreatbritain/latest) | 0.1 % | total construction output, monthly change July 2026 | 2026-09-11 |

## The sentence each figure was read from (6)

- [ONS producer price inflation](https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/producerpriceinflation/latest), read 2026-09-11: "Producer input prices rose by 4.9% in the year to July 2026, down from a revised rise of 7.4% in the year to June."
- [ONS producer price inflation](https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/producerpriceinflation/latest), read 2026-09-11: "Producer output (factory gate) prices rose by 3.1% in the year to July 2026, down from a rise of 3.5% in the year to June."
- [ONS producer price inflation](https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/producerpriceinflation/latest), read 2026-09-11: "On a monthly basis, producer input prices fell by 1.7% and producer output (factory gate) prices rose by 0.2% in July 2026."
- [ONS construction output in Great Britain](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/bulletins/constructionoutputingreatbritain/latest), read 2026-09-11: "Total construction output is estimated to have fallen by 0.5% in the three months to July 2026; this follows four consecutive increases in the three-monthly series, with strong growth seen in the three months to April and May, of 1.3% and 1.5%, respectively."
- [ONS construction output in Great Britain](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/bulletins/constructionoutputingreatbritain/latest), read 2026-09-11: "Over the three-month period, both new work, and repair and maintenance, fell, by 0.4% and 0.7%, respectively."
- [ONS construction output in Great Britain](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/bulletins/constructionoutputingreatbritain/latest), read 2026-09-11: "Monthly construction output is estimated to have grown by 0.1% in July 2026; this follows a decrease of 0.1% in June 2026 and a decrease of 0.8% in May 2026."

## Read in full, publishes no figure

- [ONS construction output price indices (dataset)](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/datasets/interimconstructionoutputpriceindices), read 2026-09-11: read in full and no accepted figure on the page
- [BCIS construction indices](https://www.bcis.co.uk/insight/construction-indices-cost-and-price-indices/), read 2026-09-11: every candidate on the page was refused
- [the index per release](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/datasets/interimconstructionoutputpriceindices), read 2026-09-11: 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 the estate's 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). 2 of the 5 named sources that could be read published a usable figure; 3 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 in % (a source's median where its page yielded several accepted sentences), so N counts sources, never sentences; 21 candidate sentence(s) were refused by a reviewer with the reason recorded. Derivation as chartered: the ONS construction output price index and producer price inflation series read on each release and applied to every £/m2 in the price index, so a figure a contractor published in 2024 is shown at today's money beside one published this month - the thing every basement cost guide on the web gets wrong by quoting undated numbers; the index level and the annual rate per release, with its revision status, and changed-since

## Sources

- [ONS construction output price indices (dataset)](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/datasets/interimconstructionoutputpriceindices) (the publisher's own terms; quoted for reporting and comment)
- [ONS construction output in Great Britain](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/bulletins/constructionoutputingreatbritain/latest) (the publisher's own terms; quoted for reporting and comment)
- [ONS producer price inflation](https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/producerpriceinflation/latest) (the publisher's own terms; quoted for reporting and comment)
- [BCIS construction indices](https://www.bcis.co.uk/insight/construction-indices-cost-and-price-indices/) (the publisher's own terms; quoted for reporting and comment)
- [the index per release](https://www.ons.gov.uk/businessindustryandtrade/constructionindustry/datasets/interimconstructionoutputpriceindices) (the publisher's own terms; quoted for reporting and comment)

## Cite or embed

- The median published figure in the UK Construction Cost Series is 1.10 percent across 6 figures from 2 sources' own pages (range 0.10 to 4.90 percent), read 26 September 2026.
- 2 of the 5 named sources read in full publish a figure; 3 publish none, read 26 September 2026.
- UK Construction Cost Series, series total construction output, three-month change to July 2026: median 0.50 percent across 1 source, read 26 September 2026.
- UK Construction Cost Series, series new construction work, three-month change to July 2026: median 0.40 percent across 1 source, read 26 September 2026.
- UK Construction Cost Series, series total construction output, monthly change July 2026: median 0.10 percent across 1 source, read 26 September 2026.
- UK Construction Cost Series, series producer input prices, annual rate to July 2026: median 4.90 percent across 1 source, read 26 September 2026.
- UK Construction Cost Series, series producer output (factory gate) prices, annual rate to July 2026: median 3.10 percent across 1 source, read 26 September 2026.
- UK Construction Cost Series, series producer input prices, monthly change July 2026: median 1.70 percent across 1 source, read 26 September 2026.
- The median is unchanged since 25 September 2026 (was 1.10 percent across 6).

Cite as: "basementexcavationcost.co.uk UK Construction Cost Series", updated 2026-09-26, https://basementexcavationcost.co.uk/datasets/uk-construction-cost-series/.

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