LEED-Certified Construction Break-Even at About $77K/Month

Fixed costs $70.8K/mo Year 1 overhead

Contribution margin 91.8% After variable costs

Break-even revenue $77.1K/mo Monthly revenue target

Break-even timing Month 1 Launch month

Break-even calculator

Test how monthly revenue, variable expenses, and fixed costs shape break-even for a LEED-certified construction firm.

Lean Base Full

Monthly revenue Higher revenue gives you more room to cover fixed overhead. $ Lower sales Higher sales Variable expenses These direct project costs move with revenue and project mix. $ Lower costs Higher costs

Money available to cover fixed costs $6,076,166 $6,708,333 revenue - $632,167 variable expenses

Margin ratio

91%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead the margin has to cover. $ Lower overhead Higher overhead

Break-even chart Revenue Total costs

Which expenses are fixed, and which move with sales in this green construction model?

Cost classification

Break-even is reliable only if monthly overhead stays separate from project-level spend. Here, rent and retainers set the floor, while registration fees, sourcing charges, and sales-based marketing move with awarded projects.

Expense	Cost	Break-Even Treatment	Common Mistake
Office Rent	Fixed	$8,000 per month from Month 1 to Month 60; include it in monthly overhead before project margin.	Pushing rent into job margin and overstating project profitability.
Insurance (GL & PI)	Fixed	$2,500 per month for general liability and professional liability coverage; treat as baseline overhead.	Treating insurance as bid-only when it runs every month.
Accounting & Legal Retainer	Fixed	$3,000 per month; include in the overhead load needed before break-even.	Leaving retainers below the line and understating the sales target.
Software Subscriptions (CAD, PM)	Fixed	$1,200 per month for design and project management tools; model as recurring overhead.	Charging the full subscription to the first active project.
Green Building Project Registration	Variable	$3,000 to $6,000 per project, based on project type; include in project-level break-even.	Using one flat fee across all project categories.
Sustainable Material Sourcing Fee	Variable	0.8% of Commercial Office revenue; at $15,000,000 in the first year, that equals $120,000 per project.	Modeling it as overhead instead of a revenue-linked project charge.
Construction Engineer Payroll	Semi-fixed	Annual salary is $95,000 per full-time employee; staffing rises from 1.0 FTE in the first year to 3.0 FTE by Year 5.	Assuming payroll moves smoothly with each dollar of revenue.
Vehicle Lease & Maintenance	Semi-variable	$1,800 per month is the base charge; field usage can rise as more job sites are active.	Treating vehicle spend as fully fixed while project count grows.

How does break-even shift from a lean launch to a full workload?

Scenario table

Break-even shifts as the project mix gets bigger: revenue rises faster than fixed overhead, so the cushion widens from lean to full. What this hides is billing timing, because a late draw can still squeeze cash.

Scenario figures are planning assumptions, not guarantees; job timing and mix can move the result.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch case	$5.00M	$426.4K	$70.8K	91.5%	$4.50M	Wide cushion; launch risk is timing, not margin.
Base project bench	$8.38M	$712.0K	$99.1K	91.5%	$7.56M	Best balance; break-even stays low if the bench stays full.
Full workload case	$14.63M	$1.24M	$123.3K	91.5%	$13.27M	Strongest cushion; keep utilization high to hold it.

What breaks first if this plan starts slow or costs run hot?

Stress test

The plan has a wide cushion above break-even, but the first real pressure comes from slower starts, 15% higher overhead, or a 3-point margin dip. Even then, the business stays above water; cash timing is the bigger risk.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change; revenue stays around $50M in Year 1.	$77K/month	$49.9M cushion	Strong cushion, but it still depends on planned starts landing.
Revenue shortfall	Year 1 revenue slips 20% from $50M to $40M.	$77K/month	$39.9M cushion	Lower starts still clear break-even, but cash collections matter more.
Fixed cost increase	Monthly fixed overhead rises 15% from about $71K to $81K.	$89K/month	$49.9M cushion	Higher overhead trims cash buffer, but it does not threaten break-even.
Margin pressure	Contribution margin falls 3 points from 91.5% to 88.5%.	$80K/month	$49.9M cushion	Material premiums and labor overruns raise the floor fast.
Combined pressure	Revenue falls 20%, fixed overhead rises 15%, and margin drops to 88.5%.	$92K/month	$39.9M cushion	Delayed notices to proceed, material premiums, and slow retainage release are the main cash risks.

What should you verify before locking in the lease, hires, and equipment?

Founder checklist

Don’t lock in the lease, fleet, or tools until signed backlog clears the $77K/month break-even line and deposits are in hand. With a $2.261M minimum cash need in Month 1, the ramp has to fund itself, not hope itself.

1Backlog cover$77K/mo

Verify signed work and deposits clear the monthly break-even line before you commit to lease, vehicles, and tools.

2Cash floor$2.261M

Check you can fund the Month 1 minimum cash need before heavy preconstruction spend, or a start slip can drain the reserve fast.

3Fixed load$70.8K/mo

Confirm booked work can carry the monthly fixed load from payroll and overhead before you add more staff or sign long commitments.

4Job margin91.5% CM

Keep project-level direct costs inside the model so contribution margin stays near plan and the break-even target does not climb.

5Staffing gate1.0 FTE

Match the Senior Project Manager and LEED Accredited Professional to active jobs, not hoped-for bids, before you add more headcount.

6Capex stage$425K

Stage the setup, vehicles, and tools against awarded work, and push noncritical capex back if project starts slip.