Historical estimate comparison

A drawing-only fit-out estimate about 6.4% above the prior quote

A fit-out contractor compared an approximately £486,000 Quotify result with a £456,750 quote they had previously prepared for the client.

Commercial fit-out · drawing-only pilotEvidence from 19 June 2026For: Commercial fit-out teams evaluating a drawing-based first pass
Illustrative commercial fit-out model beside existing and proposed architectural plans
AI-generated editorial illustration. Not a photograph of the customer’s project.
≈£486kQuotify result read out on the call
£456,750previous quote to the client
≈6.4%difference from the prior quote

The task, the review and the action

The task

Test a known fit-out project using existing and proposed drawings. The contractor had previously quoted £456,750 to the client.

The review

The call compared that prior quote with an approximately £486,000 Quotify result and identified the need to inspect the specification.

The action

The pilot gave the team a basis for further scope review and raised the need for reports suited to different audiences.

The starting point

The contractor had spent months developing a general-purpose AI workflow for scopes and pricing. They wanted to find out whether Quotify could produce a useful construction estimate from architectural information.

A previously quoted fit-out project gave the team a known figure to compare against.

How Quotify was used

Existing and proposed drawing sets were tested in Quotify during the June pilot. The contractor reviewed the result alongside their own previously prepared quote.

On the call, the Quotify figure was read out as approximately £486,000. The contractor then stated that their quote to the client had been £456,750. They were encouraged by the result, while stressing the need to inspect the final specification in detail.

What came out of the review

The difference was approximately £29,250. Dividing that by the £456,750 prior quote gives about 6.4%, with Quotify’s result higher.

The pilot produced a promising basis for a more detailed scope and specification review. The call also identified a desire for reports tailored to different audiences.

About this result

One useful historical test, not a general accuracy rate

The comparator was a previous client quote, with the final scope and commercial allowances still to reconcile. Later feedback on a separate September project raised further pricing questions. The reported June result therefore applies to this historical comparison.

What another builder can take from it

Use a historical project as a calibration exercise. Compare the breakdown and specification as carefully as the total, then repeat the exercise on other projects before relying on a pattern.

A product example you can inspect

See the scope and pricing detail

Academy product example showing scope basis, quantity source, labour and materials in line details
Product example from the Academy, showing a line’s scope, labour, materials and review questions. This is a training example, separate from the customer’s project and results.
Open the Academy explanation ↗

Try this review on your own project

  1. Register the existing and proposed drawings and the specification revisions before comparing outputs.
  2. Check package scope, exclusions and commercial basis as carefully as the total.
  3. Review the internal cost detail and the client-facing scope separately, then reconcile their totals.

Your next step

Review a fit-out estimate against a known scope

Try your first complete project free. Treat the first pass as a starting point for specification and commercial review.

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