Homeowner decision tool
Design cost needs a defined service.
Test the arithmetic behind a percentage-fee proposal while keeping scope, stages, specialists, reimbursables and tax visible.
The calculator supplies no market rate. Enter a percentage only from a planning scenario or an actual proposal.The percentage is only one line.
Compare proposals by included stages, deliverables, revision limits, coordination, site involvement, specialist appointments, approval support, reimbursables, taxes, intellectual-property terms and termination obligations.
A low percentage can still be expensive if essential work sits outside it. A higher percentage can still be incomplete. Read the appointment, then test its arithmetic.