Why Your Build Costs Are Wrong Before You Even Start

Every development project starts with a number — a projected build cost, a rough budget, a figure written into the appraisal. The problem is that number is almost always wrong, and usually in the direction that hurts.

Early-stage build cost estimates in the UK are typically based on a figure from a previous similar project, a cost per square metre from an online guide, or a rough number from a contractor who hasn't seen the full spec.

All three have the same problem: they're not based on your project. They're based on averages, historical data, or assumptions that may bear no resemblance to your actual scope, site conditions, specification level, or current material and labour costs.

The gap between that early figure and the actual build cost is where development projects get into serious trouble. Budgets get signed off based on assumptions that were never properly tested.

If your initial appraisal was based on £1,800 per square metre and the actual cost comes in at £2,200, that's not a project that went over budget. That's a project that was never accurately budgeted in the first place.

The solution is accurate construction cost planning at the earliest possible stage — a genuine breakdown of likely build costs based on your actual project parameters, regional pricing, and current market conditions.

TruTrade Estimates gives developers exactly this. Before you've committed to a site or signed off an appraisal, you can have an accurate, detailed cost picture that your financial model can actually rely on.