Primary suite / living space
$225 to $425 per sq ft
Ground-level additions with foundation, roof tie-in, and systems extension. Upper-story additions price above this band because structure drives them.
Grandmark qualification
Additions fail on unknowns: tie-ins, structure, systems capacity, and living through the work. A qualified packet answers those before a builder prices them as risk.
Grandmark qualifies the project and matches it to an independent licensed builder. You contract directly with the builder. Fees are published. See the fee page.
Cost reality, Tennessee 2026
Planning ranges below come from current Tennessee costs. They are for budgeting a consult, not a bid.
Primary suite / living space
Ground-level additions with foundation, roof tie-in, and systems extension. Upper-story additions price above this band because structure drives them.
Garage with finished space above
The most predictable addition type in the region, and the one most often started without permits or a systems check. The packet covers both.
Kitchen expansion
When an addition carries a kitchen, budget the addition band plus major-rework numbers for the kitchen itself. The consult separates the 2 so the builder's bid can be read line by line.
Timeline
Design, permitting, and construction for a substantial addition. Qualification takes about 2 weeks.
Fit
Projects at $25,000 and above where structure, systems, or budget make the choice of builder matter. Smaller cosmetic work belongs with a contractor you hire directly, and the consult will say so if that is your case.
How it runs
Step 1
A 30 to 45 minute call with Ben Long. Land status, budget against current Tennessee cost ranges, financing path, timeline, decision makers, red flags. You get a written summary and an honest go or no-go.
Step 2
Your project written up the way a builder underwrites it: scope, site facts, budget band, financing evidence, timeline, open items. The packet is yours to keep, whatever you decide.
Step 3
Before any builder hears your name, 3 documents are signed: your qualification agreement, your flat fee, and a disclosure naming the builder, his license number and limit, and every fee in dollars. No builder name moves before this gate clears.
Step 4
One independent licensed builder, chosen on size, project type, county, capacity, and a running scorecard. He bids in his own name and contracts directly with you. A second builder is added only if the first passes or goes quiet for 3 business days.
Step 5
Contract copy, completion photos from the builder, and a confirmation call at completion. With your written permission, the project becomes a case packet for the next client.
Fees, in the open
Clients pay a flat qualification fee: $2,950 under $350,000, $4,950 from $350,000 to $750,000, $7,500 above $750,000. The builder pays a tiered origination fee on a signed contract, and Grandmark's combined fees are capped at $24,999 per project. No percentage is ever charged to the client, and nothing is collected at closing.
A builder should earn your project on a packet, not on a sales call.
The Grandmark Standard