Geomechanics.io

  • Free Tools
Sign UpLog In

Geomechanics.io

Geomechanics, Streamlined.

© 2026 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy
    Projects
    Sustainability

    Persimmon growth outlook: what flat output means for project teams and costs

    January 13, 2026|

    Reviewed by Joe Ashwell

    Persimmon growth outlook: what flat output means for project teams and costs

    First reported on The Construction Index

    30 Second Briefing

    Persimmon reports 2025 completions up 12% to 11,905 homes, with private units at 9,830 and partnership homes at 2,075, but expects 2026 output to be only “not much more than 12,000” amid flat market conditions and affordability constraints. Average private selling prices rose 5% to £301,000 and partnership prices 4% to £168,000, while underlying build cost inflation is forecast to match 2025 levels. Doubling of landfill tax from April 2026 and ongoing registered provider weakness are flagged as key cost and demand pressures for future schemes.

    Technical Brief

    • Persimmon is planning for underlying build cost inflation in 2026 to match 2025 levels.
    • Landfill tax on construction waste will double from April 2026, with further annual uplifts expected.
    • Vertical integration is being used as a primary cost-control mechanism across Persimmon’s housing delivery chain.
    • Fewer bulk sales are in the 2026 order book, reducing forward visibility for large multi-unit releases.
    • Ongoing weakness in the registered provider market is expected to constrain partnership housing demand in 2026.
    • Early results from Persimmon’s Boxing Day marketing campaign indicate stronger-than-expected private buyer engagement.
    • Recent mortgage rate reductions are improving credit availability, but Persimmon still flags affordability as a binding constraint.
    • Final audited results for the year to 31 December 2025 are scheduled for release on 10 March 2026.

    Our Take

    Persimmon’s move to deploy Nexus ReGen’s Materials Exchange Platform across its UK operations suggests that the forecast slowdown in growth will coincide with a push to cut soils and aggregates disposal costs ahead of landfill tax charges doubling from April 2026, which could help protect margins even if volumes soften.

    Within our 411-item Infrastructure corpus, Persimmon is one of the more frequently recurring UK housebuilders in sustainability-tagged coverage, signalling that its waste, materials and carbon strategies are increasingly material to how investors and local authorities assess its project bids.

    The presence of Persimmon alongside Cruden and institutional backers like BGF, Barclays, HSBC and NatWest in late-2025 coverage indicates that UK housebuilding remains investable, but the 12% completions increase and selling price uplifts here are likely to set a high comparative bar for peers facing the same 2026 tax and cost headwinds.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    National Grid TBM under the Thames: tunnelling design and risk notes for engineers
    Infrastructure
    in 8 months

    National Grid TBM under the Thames: tunnelling design and risk notes for engineers

    A 271.5‑tonne Herrenknecht Mixshield TBM, Caroline, has started driving a 2.2km electricity cable tunnel with a 4m internal diameter beneath the River Thames in Essex for National Grid’s Grain to Tilbury project, delivered by the Ferrovial BEMO joint venture. The drive will pass through variable Thames estuary ground conditions between 35m‑deep launch and reception shafts of 15m and 12m diameter, with tunnelling continuing into 2026 and overall scheme completion targeted for 2029. The new tunnel will replace the 1969 Thames Cable Tunnel and carry new high‑voltage circuits between Grain and Tilbury substations.

    Panama Canal Mixshield undercrossing: design and tunnelling lessons for engineers
    Infrastructure
    in 8 months

    Panama Canal Mixshield undercrossing: design and tunnelling lessons for engineers

    A 13.46m diameter Herrenknecht Mixshield TBM has broken through into the future Balboa station on Panama Metro Line 3 after completing the first-ever TBM undercrossing of the Panama Canal at depths exceeding 60m below sea level. The 5,600kW, 26,616kNm machine, fitted with an accessible cutterhead and more than 4,500 sensors linked via the Herrenknecht.Connected platform, has achieved peak advance of 150 segment rings (about 300m) per month through mixed sandstone, tuff, breccias and basalt. Around 1.5km of the 4.5km twin-track tunnel remains to final breakthrough.

    Hudson Tunnel funding deadline: schedule and risk takeaways for project teams
    Infrastructure
    in 7 months

    Hudson Tunnel funding deadline: schedule and risk takeaways for project teams

    Federal funding for New York’s US$16bn Hudson Tunnel Project has been frozen, forcing the Gateway Development Commission to suspend works from 6 February after spending over US$1bn and employing about 1,000 site workers. A Manhattan federal judge has issued a temporary restraining order, giving the administration until 5 p.m. on 12 February to restore reimbursements or appeal, while contractors warn that demobilisation, resequencing and remobilisation will add cost and delay. Sites are now in “safe-pause” mode, with dewatering, ground support and environmental monitoring maintained, and assembly of two Herrenknecht TBMs in New Jersey likely to slip beyond the planned spring 2026 launch without funding certainty.

    Related Industries & Products

    Construction

    Quality control software for construction companies with material testing, batch tracking, and compliance management.

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    QCDB-io

    Comprehensive quality control database for manufacturing, tunnelling, and civil construction with UCS testing, PSD analysis, and grout mix design management.