5 Pricing Models Tennessee Builders Use (Ranked Best to Worst for Homeowners)

Good Day Living
May 27, 2026

Not all custom home contracts are priced the same way. There are five distinct pricing models in use across Middle Tennessee — each with different implications for who carries risk and how predictable your final cost will be. Here they are, ranked from best for homeowners to worst.

#1: Fixed-Price With Detailed Scope (BEST)

The number you sign is the number you pay. Scope is clearly defined; allowances are realistic. Changes go through a defined change-order process. Maximum predictability and minimum stress for homeowners. The builder bears all overrun risk.

#2: Guaranteed Maximum Price (GMP)

Like fixed-price but with a cap. If actual costs come in below the GMP, savings can be shared with the homeowner. Usually used for very large projects with shifting scope.

#3: Stipulated Sum With Allowances

A fixed price with itemized allowances that can flex up or down based on selections. Better than cost-plus but allowance overruns can drift the price upward. Honest allowances make this model fine; underbid ones make it worse.

#4: Cost-Plus With Cap

Builder charges actual cost plus a percentage, but with a stated upper bound. Better than open cost-plus but still places more burden on the homeowner to track invoices.

#5: Open Cost-Plus (WORST)

Builder charges actual cost plus a percentage with no cap. Builder makes more when costs go up. Homeowner has no protection against budget overruns. Most common cause of disastrous custom home builds.