James Hill is a quantity surveyor and director of Cost Estimator Ltd. He writes Cost Estimator guidance for homeowners, builders, developers and architects who need clearer construction pricing before money is committed. His articles focus on practical estimating issues: drawings, scope gaps, quantities, labour and material allowances, preliminaries, exclusions, tender pricing, quote comparison and cost drift. You can also find and connect with James Hill on LinkedIn.
A plain-English guide to self-build contingency in the UK, including what it covers, how it changes by project stage and how better estimating reduces guesswork.
A practical guide to the costs that quietly get missed on self-build projects, from external works and utilities to specification drift and completion items.
Many building budgets drift before work starts because the specification is still moving underneath the drawings. This guide explains where those cost changes come from and how to spot them earlier.
Energy upgrades rarely affect just one line in the budget. This guide explains how glazing, insulation, heating and ventilation choices change extension and refurbishment costs in the UK.
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