Home Building Break-Even Analysis: About $558K Monthly Revenue

Fixed costs $45.2K/mo Monthly overhead

Contribution margin 81% After variable costs

Break-even revenue $55.8K/mo Monthly target

Break-even timing Month 1 Launch month

Break-even calculator

Test monthly revenue against direct project costs and monthly overhead for a home building company.

Lean Base Full

Monthly revenue Revenue sets the margin available to cover fixed costs. $ Low volume High volume Variable expenses Direct project costs rise with homes sold and built. $ Low direct High direct

Money available to cover fixed costs $686,000 $816,667 revenue - $130,667 variable expenses

Margin ratio

84%

Covers fixed costs

Yes

Fixed monthly costs Monthly overhead and payroll the margin has to cover. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which home-building expenses stay fixed at break-even, and which move with sales?

Cost classification

Break-even is only reliable if fixed overhead is separated from job-linked spending. Here’s the quick math: Year 1 payroll is $410,000/year, or about $34,167/month, before project-level costs.

Expense	Cost	Break-Even Treatment	Common Mistake
Office rent	Fixed	Use $3,000/month as baseline overhead from Month 1 through Month 60.	Spreading rent across each home and hiding the true monthly hurdle.
General liability and base builder risk insurance	Fixed	Use $2,500/month as recurring overhead before job-level profit.	Treating all insurance as job-variable instead of separating the base charge.
Software licenses subscriptions	Fixed	Use $750/month as fixed operating overhead in the break-even model.	Ignoring small monthly tools because they look immaterial alone.
Core salaries	Fixed	Treat Year 1 payroll as overhead: $410,000/year, or about $34,167/month.	Counting salaried staff as variable labor when they’re committed capacity.
Specific project materials and permits	Variable	Apply the Year 1 rate of 8.0% of revenue, stepping down to 6.0% by Year 5.	Treating permits and materials as fixed overhead instead of sale-linked spend.
Subcontractor mobilization costs	Variable	Apply the Year 1 rate of 4.0% of revenue, stepping down to 3.0% by Year 5.	Budgeting mobilization like office overhead when it follows active jobs.
Realtor commissions and sales incentives	Variable	Apply the Year 1 rate of 5.0% of revenue, declining to 3.5% by Year 5.	Leaving commissions below the gross margin line and overstating contribution.
Project managers, foremen, vehicles, and equipment leases	Semi-fixed	Hold capacity steady until job volume forces the next hire, truck, or lease step.	Assuming staffing and equipment rise smoothly with every dollar of sales.

How does break-even shift across lean, base, and full home-building volume?

Scenario table

Break-even gets easier as monthly revenue spreads fixed payroll and overhead across more completed homes. The lean case is right on the line at about $558K a month, while the base and full cases build more cushion.

Planning assumptions only; actual break-even will move with job timing and collections.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean semi-custom pace	$558K	$106K	$452K	81%	$0	Right on the line; one slow month can push break-even back.
Base semi-custom and full custom mix	$2,667K	$507K	$1,994K	81%	$166K	Overhead is covered, but steady closings still matter.
Full-volume semi-custom and full custom mix	$8,167K	$1,307K	$6,259K	84%	$601K	Scale helps, but cash timing still has to keep pace with builds.

What breaks the break-even plan if closings slow or costs creep up?

Stress test

At $2,667K average monthly revenue, Year 1 sits above a $558K break-even point on an 81% contribution margin and $452K of fixed overhead. The cushion is real, but slower closings, hiring ahead of backlog, and margin leakage can shrink it fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$558K	$2,109K cushion	Healthy cushion, but long build cycles still tie up cash.
Revenue shortfall	Monthly revenue falls 15% to $2,267K from delayed permits and slower closings.	$558K	$1,709K cushion	Less volume cuts contribution dollars even when margin holds.
Fixed-cost pressure	Project Manager and Construction Foreman each add 0.5 FTE in Year 1.	$567K	$2,100K cushion	Payroll pulled forward before backlog raises the monthly hurdle.
Margin pressure	Variable expenses rise from 19% to 22% on higher materials, permits, commissions, and marketing.	$580K	$2,087K cushion	A few margin points matter on large jobs.
Combined pressure	Revenue falls 15%, fixed overhead rises 10%, and variable expenses move to 22%.	$637K	$1,630K cushion	Delay and cost creep can turn a profitable month into a cash squeeze.

What should a home builder verify before locking in fixed overhead?

Founder checklist

Don’t add office space or payroll until you’ve got signed backlog, clear permit timing, and cash above the model floor. With about $45.2K in monthly fixed load, 81% contribution margin, and $914K minimum cash, the break-even math only works when jobs are already real.

1Signed backlog$3.2M Yr1

Verify signed residential contracts and scopes before adding fixed costs, because the first-year plan only works if the work is already booked.

2Fixed load$45.2K/mo

Check that rent, insurance, software, vehicles, and base payroll stay covered even in slower build months.

3Contribution margin81% CM

Price materials, permits, subcontractor mobilization, and sales incentives so each home still leaves enough gross profit after direct costs.

4Staffing ramp1.0→5.0 FTE

Add project managers, foremen, and laborers only when build volume supports the ramp, or payroll will outrun completed jobs.

5Cash buffer$914K min

Keep cash above the model floor before buying trucks and tools, since the planned $178K capex can drain liquidity fast.

6Permit flowMonth 1

Confirm permit, inspection, and change-order timing before launch so work, billing, and cash collection stay in the same order.