Real Estate Development Break-Even Analysis: Month 30 Threshold
The real estate development model reaches break-even in Month 30, when the first sale period begins after a deep cash trough of -$59685 million in Month 29 At that point, fixed overhead plus rental carry is about $1507k per month, and Year 3 selling costs total 9%, leaving a 91% contribution margin Here’s the quick math: $1507k / 91% = about $1656k of monthly sales revenue needed to cover operating overhead before recovering land and construction spend Actual break-even shifts if unit mix, pricing, interest carry, or construction timing moves against the plan
Fixed costs$88.2K-$100.2K/mo
Base monthly burn
Contribution margin89%-93%
After sales costs
Break-even revenue$95K-$113K/mo
Needed to cover burn
Break-even timingMonth 30
Model breakeven point
Break-even calculator
Test monthly development revenue against direct project costs and the fixed overhead it has to cover.
Money available to cover fixed costs$4,525,000
$5,000,000 revenue - $475,000 variable expenses
Margin ratio
90%
Covers fixed costs
Yes
Break-even chart Revenue Total costs
Which expenses are fixed and which move with sales in a real estate development break-even model?
Cost classification
Break-even only works if time carry, land basis, and sales-linked fees sit in the right buckets. Fixed office and land costs burn cash before sales, while brokerage and marketing move with project sales.
Expense
Cost
Break-Even Treatment
Common Mistake
Land acquisition for owned sites
Fixed
Set land basis when owned sites are acquired; do not flex it with sales pace.
Treating owned land purchases as a variable sales expense.
Rented site control
Semi-fixed
Carry $15,000, $12,000, or $18,000 per month once each rented site starts.
Treating time-based site carry like a one-time closing item.
Construction labor and materials
Variable
Tie to the $114.0 million total construction budget and project scope.
Dividing the full budget evenly across all months.
Site work
Semi-variable
Model a base site setup plus scope-driven work as each project moves into construction.
Forcing all site work into a fixed monthly overhead line.
Permitting and design fees
Semi-fixed
Step up by project phase rather than by monthly sales volume.
Linking approvals and design spend directly to closing volume.
Third-party management and brokerage fees
Variable
Apply to sales at 6.0% in the first year, falling to 4.0% by the fifth year.
Leaving brokerage fees out of contribution margin.
Project-specific marketing and sales
Variable
Apply to project sales at 5.0% in the first year, falling to 3.0% by the fifth year.
Budgeting marketing as flat overhead despite sales-linked spend.
Office rent
Fixed
Include $12,000 per month from Month 1 through Month 60.
Ignoring office burn during pre-sale development months.
How does break-even shift from the lean phase to the full seven-project buildout?
Scenario table
Break-even gets easier as the variable load falls from 11% to 7%, but fixed burn stays high. The base case sits closest to the Month 30 signal, and the full build only holds if sales and lease-up stay on schedule.
Planning assumptions only; no sale price assumptions were provided, so revenue is the break-even threshold, not a guaranteed forecast.
Scenario
Monthly Revenue
Variable Costs
Fixed Costs
CM Ratio
Operating Profit
Break-Even Signal
Lean owned phase
$991,000
$109,000
$882,000
89%
$0
Thin cushion; sales slippage pushes break-even past Month 30.
Base seven-project case
$1,162,000
$105,000
$1,057,000
91%
$0
Closest fit to the Month 30 break-even signal.
Full peak pipeline case
$1,185,000
$83,000
$1,102,000
93%
$0
Highest cushion, but the $45,000 rental carry still needs on-time sales.
What breaks the Month 30 break-even plan for this development model?
Stress test
The base case only works if sales land on time and margin stays near 91%. A 10% sales miss or a 2-point margin drop lifts break-even fast, and the Month 29 cash trough gets worse.
Stress Case
Changed Assumption
Break-Even Revenue
Revenue Gap
Risk Signal
Current plan
No change.
$147.3M
$0 gap
Month 30 is the base case, but cash bottoms in Month 29.
Revenue shortfall
Gross sales come in 10% below plan.
$163.7M
$16.4M gap
Slower absorption pushes breakeven past Month 30.
Fixed-cost increase
Monthly fixed overhead runs 10% higher.
$148.0M
$0.7M gap
Even a small overhead bump narrows the cushion.
Margin pressure
Contribution margin drops from 91% to 89%.
$150.6M
$3.3M gap
Lower margin means each sale covers less of the build.
Combined pressure
Sales come in 10% low, fixed overhead runs 10% high, and margin drops to 89%.
$168.1M
$20.8M gap
Late sales, higher carry, and lower margin create the tightest cash window.
What should a founder verify before closing land and breaking ground?
Founder checklist
Do not close land or start site work until zoning, utility access, and the sales path still fit the model. The deal only works if the $114.0M build plan, $14.0M owned-land exposure, and Month 30 break-even date all survive your reserve check.
1EntitlementsPre-close
Verify zoning, entitlement path, utility access, and site work scope before land purchase so you do not buy a parcel you cannot build on.
2Land Carry$14.0M + $45K/mo
Test the owned land exposure and rented site carry together, because $14.0M of purchases plus $45K a month in rent hits cash before any sale.
3Build Budget$114.0M
Lock the full construction plan against bids and contingencies, because the seven project budgets total $114.0M and one overrun can break the spread.
4Fee Drag7%-11%
Check that project-specific marketing and sales plus brokerage fees, at 11.0% in Year 1 and 7.0% by Year 5, still leave room for profit at exit.
5Payroll Ramp$770K→$980K
Phase hiring so payroll can rise from about $770K a year in Year 1 to $980K by Year 3, or fixed overhead will outrun cash.
6Cash RunwayMonth 29
Set reserves for the -$59.685M minimum cash point in Month 29 and tie the broker plan to sale starts in Month 30, 38, 46, 50, and 60.
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