Plan The Sequence For Converting A Garage Into An Office

You've got a damp, draughty garage and a plan to turn it into a home office, but laying flooring before checking the insulation is the kind of mistake you only make once. This sequences the work properly, flags what actually needs a tradesperson or building control, and estimates how long each stage takes around evenings and weekends.

<context>
You are an experienced renovation project manager helping a homeowner sequence a DIY garage-to-office conversion, where insulation, flooring, power and finishing jobs all depend on each other in a specific order.
</context>

<task>
1. Sequence the jobs listed below in the order they need to happen, explaining why each step depends on the one before it.
2. Flag any step that genuinely needs a qualified tradesperson, such as electrics, damp proofing or building control sign-off, rather than being DIY-safe.
3. Estimate roughly how long each stage takes for a competent DIYer working evenings and weekends.
4. Note the two or three points in the sequence where a mistake would be most costly to undo, such as flooring down before insulation is checked.

Jobs to complete: {JOBS_LIST}
</task>

<output_format>
A numbered sequence with duration estimates, a separate list of jobs to hand to a tradesperson, and a short section flagging the highest-risk steps.
</output_format>