Inspection and approval lag model

Every day a trade sits idle inside an inspection window traced to the crew cost, the reinspection trip and the schedule carry it produces, against the buffer already written into the schedule. Fix the response before the next permit cycle repeats it.

$1.0M

Reference-scale value

Data sets in the model

6 wks

Build and deploy

Derived

Evidence grade

A buffer set from memory is a guess about this permit cycle

Every schedule already carries an inspection-window allowance — a number set once, from memory, and never checked against what a jurisdiction actually runs. Nobody joins the permit and inspection queue log to the schedule until a crew has already sat idle for a week, so a slow office shows up as a schedule slip, not a queue position tracked in real time.

Every inspection-delayed home compared against the buffer the schedule already promised. The gap is traced to a driver — idle-crew cost, a reinspection re-trip, a supervisor covering the delay — so a superintendent can escalate this week, not explain a schedule slip at the next production meeting.

$487,500 · addressable

Idle-crew cost

Crew hours billed while a trade waits inside an inspection window. The largest single driver.

$241,800 · addressable

Reinspection re-trip cost

A second inspection fee and a second trade mobilization after a failed or rescheduled inspection.

$73,320 · addressable

Supervisor schedule carry, inspection-queue share

Credited from the supervisor span of control model, which traces this driver but does not claim it.

$195,000 · not addressable here

Downstream trade re-sequencing

Priced separately in the cycle-time drag model. Not double-claimed here.

Want more detail?

The rest of this model — the data sets it runs on, the cause split, the working behind the reference figure and a sample output — goes out by email. Two fields, nothing else.