Does the calculator handle ground-up development as well as flips?

Yes — ground-up build-to-sell uses the same engine with different default assumptions for soft cost and timeline.

Are 1031 exchange implications modeled?

No — tax structuring belongs in your CPA's analysis.

Can I model wholesale assignments?

Wholesale is a different play with different economics. The platform's primary build-to-sell coverage is rebuild and ground-up.

How are comp-based exit prices calibrated?

From recent sales for similar property types in the submarket, with adjustments for finish tier where data supports them.

What if I'm planning to seller-finance the exit?

Seller financing changes timeline and cash flow but not gross profit. The calculator models cash exit; seller-finance modeling is on the roadmap.

Can I save and share calculations?

Yes — calculations attach to project records and export as branded PDFs.

Development Profit Calculator — Profit, Margin, And Where The Deal Flips

Build-to-sell development is a profit-margin business. The math is simple in form — exit sale price minus all-in project cost minus selling costs equals profit — and ruthlessly unforgiving in practice. Most build-to-sell developers underestimate two layers: contingency and selling costs.

Buildora IQ's profit calculator forces honesty on those layers. This page covers the inputs, the formula, the typical traps, and walks a worked example through the math.

The build-to-sell formula and where it leaks

Gross profit = Exit sale price - Total project cost - Selling costs. Margin = Gross profit / Total project cost. Equity multiple = (Profit + Equity returned) / Equity invested. The leaks: total project cost rarely includes adequate contingency on first pass; selling costs (broker commission, closing fees, staging, holding cost during marketing) are usually underbudgeted; exit sale price often anchors to recent comps without adjustment for the actual finish package being delivered.

The four selling-cost components most calculators miss

Broker commission: typically 5-6% of sale price, sometimes split asymmetrically buyer/seller. Closing costs and transfer taxes: jurisdictional, typically 1-3%. Staging and marketing: typically $5k-$25k on residential, more on luxury. Holding cost during marketing: carry plus property taxes plus utilities for the typical days-on-market in the area. Together these often total 8-12% of sale price — material enough that ignoring them turns a 'profitable' deal into a marginal one.

Worked example: SFR flip in Sacramento

Inputs: Sacramento SFR, 2,000 sqft, mid-tier finish, total project cost $565k (including 10% contingency, soft cost, fees, 9-month carry). Comps suggest exit at $720k for mid-tier 2,000-sqft in the submarket. Selling costs: 6% commission ($43k), 1.5% closing ($11k), $8k staging/marketing, $14k holding during 60-day marketing. Selling total: $76k. Gross profit: $720k - $565k - $76k = $79k. Margin: 14% on total project cost. Equity multiple at 25% LTC: roughly 1.6x on equity. Sensitivity: a 5% exit-price haircut to $684k cuts profit to $43k (7.6% margin) — the deal still works but thinly. A 5% haircut combined with a 5% cost overrun pushes profit toward break-even.

When the calculator says 'don't take this deal'

A flip with sub-10% central margin and meaningful exit-sensitivity exposure is a deal the calculator is telling you to walk from. Margins below 10% don't survive surprises, and there are always surprises. The platform surfaces this with a confidence-flagged note when the central margin is thin.

Use Cases

Honest Selling Costs: Commission, closing, staging, holding — all modeled explicitly.
Forced Contingency: Project cost calculator requires contingency input — no blank line.
Sensitivity Across Exit And Cost: See the deal's true exposure before committing.
Thin-Margin Flags: Sub-10% central margins flagged with a recommendation to walk or restructure.

Frequently Asked Questions

Does the calculator handle ground-up development as well as flips?: Yes — ground-up build-to-sell uses the same engine with different default assumptions for soft cost and timeline.
Are 1031 exchange implications modeled?: No — tax structuring belongs in your CPA's analysis.
Can I model wholesale assignments?: Wholesale is a different play with different economics. The platform's primary build-to-sell coverage is rebuild and ground-up.
How are comp-based exit prices calibrated?: From recent sales for similar property types in the submarket, with adjustments for finish tier where data supports them.
What if I'm planning to seller-finance the exit?: Seller financing changes timeline and cash flow but not gross profit. The calculator models cash exit; seller-finance modeling is on the roadmap.
Can I save and share calculations?: Yes — calculations attach to project records and export as branded PDFs.

Related Resources

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