Children’s Hospital Design Firm Break-Even: About $99K/Month

Fixed costs $70.5K/mo Year 1 base

Contribution margin 71.5% After variable costs

Break-even revenue $98.6K/mo Revenue needed

Break-even timing Month 2 Model reaches point

Break-even calculator

See how monthly revenue, variable expenses, and fixed costs stack up for a children's hospital design firm.

Lean Base Full

Monthly revenue Revenue sets the pool that pays variable and fixed costs. $ Low sales High sales Variable expenses Use direct project costs that move with billings. $ Light load Heavy load

Money available to cover fixed costs $2,457,642 $3,267,833 revenue - $810,191 variable expenses

Margin ratio

75%

Covers fixed costs

Yes

Fixed monthly costs Use monthly overhead that stays on even when volume slows. $ Lean overhead High overhead

Break-even chart Revenue Total costs

Which expenses are fixed and which move with sales for a children’s hospital design firm?

Cost classification

Break-even only works if each expense follows the right behavior. Run it on recurring operating costs, not launch purchases like the $65,000 office setup or $85,000 computing hardware.

Expense	Cost	Break-Even Treatment	Common Mistake
Principal Architect & CEO salary	Fixed	Include $180,000 per year, or $15,000 per month, in base overhead.	Leaving founder payroll out and overstating margin safety.
Office rent	Fixed	Include the $12,000 monthly lease in fixed overhead from Month 1.	Spreading rent by project and hiding the monthly cash burden.
Professional liability insurance	Fixed	Include $4,500 per month because coverage is required regardless of billings.	Treating insurance as a project expense instead of core overhead.
Base software licenses	Fixed	Include the $3,200 monthly platform license amount in operating overhead.	Mixing base licenses with project-specific visualization tools.
Third-party engineering consultants	Variable	Model as a percentage of revenue: 12.0% in the first year, falling to 10.0% by the fifth year.	Counting reimbursable consultant pass-throughs as overhead when clients repay them.
Project-specific software & visualization tools	Variable	Model against billings: 3.5% in the first year, declining to 2.2% by the fifth year.	Putting every software line into fixed overhead.
Annual marketing budget	Semi-fixed	Budget steps from $120,000 in the first year to $360,000 in the fifth year.	Treating marketing as a per-hour expense instead of a planned spend level.
Senior Healthcare Architect staffing	Semi-fixed	Add payroll in jumps as headcount moves from 1.0 FTE to 2.0 FTE and then 3.0 FTE.	Averaging headcount and missing the step-up in monthly overhead.

What changes break-even the most across lean, base, and full pediatric design scenarios?

Scenario table

Lean only clears overhead, base has a healthy cushion, and full capacity widens it fast. The swing comes from a higher contribution margin in Year 5 and more revenue spread over a larger fixed team.

Scenario figures use the model's planning assumptions and core metrics, so they show direction, not a guarantee.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean pediatric launch	$106K	$30K	$76K	71.5%	$0	Just covers overhead, so one slipped project can turn profit negative.
Base pediatric launch	$1.06M	$301K	$76K	71.5%	$679K	Healthy cushion, but early hiring still needs close cash control.
Full-capacity pediatric design	$5.70M	$1.21M	$188K	78.8%	$4.31M	Wide cushion, but only if the team stays fully utilized.

What breaks the break-even plan if awards slip or costs creep up?

Stress test

Year 1 has a wide cushion, but the plan gets brittle if awards slip, senior staff sit idle, or revisions and consultant scope creep push variable costs up. Overhead creep matters too, because every extra $10K a month lifts the break-even line.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$1.02M	$11.66M cushion	Strong cushion if awards convert on time.
Revenue shortfall	Year 1 revenue falls 10% as awards close later.	$1.02M	$10.39M cushion	Delayed awards cut the cushion quickly.
Fixed-cost increase	Fixed overhead rises $10K a month from rent and support creep.	$1.18M	$11.49M cushion	Overhead creep lifts break-even before hiring.
Margin pressure	Variable load rises from 28.5% to 33.5% as consultant scope creep and revisions run over plan.	$1.09M	$11.58M cushion	Unpaid revisions and scope creep compress contribution.
Combined pressure	Revenue falls 10%, fixed overhead rises $10K a month, and variable load rises to 33.5%.	$1.27M	$10.13M cushion	Missed awards and cost creep can erode the buffer fast.

Is the pediatric pipeline strong enough to lock the lease and hiring plan?

Founder checklist

Don’t lock the lease or the next hires until signed pediatric work, cash, and staffing all line up. This model reaches break-even in Month 2, but the real test is whether the $754K cash floor, the $25.2K fixed base, and the first-year marketing plan can be funded from actual demand.

1Signed pipelinePediatric backlog

Verify signed healthcare work is in hand before the $12K monthly rent starts, because the lease only works if projects are already lined up.

2Fixed base$25.2K/mo

Check that monthly fixed costs for rent, insurance, software, and admin stay covered by committed billings, not hoped-for growth.

3Margin rules71.5% var. margin

Make consultant pass-throughs and reimbursables billable, because Year 1 direct costs and variable spend take 28.5% of revenue before salaries and overhead.

4Staffing ramp3.5 FTE / 3,600 hrs

There’s no inventory to fund, so weekly utilization is the real throttle; add headcount only when the 3,600 billable hours in Year 1 can hold.

5Cash cushion$754K Month 2

Cover the Month 2 cash trough and the $330K front-loaded setup spend, or the firm will run short before billings catch up.

6Launch demand$120K / $15K CAC

Test whether the Year 1 marketing budget can produce clients at a $15K CAC, because that spend has to turn into signed hospital work fast enough to support launch.