Real estate development

NEXIOS Real Estate Developer

Model the deal before you build it. Unit mix, rent roll, cost budget, financing, multi-tier LP/GP waterfall, Monte Carlo and sensitivity — an engine independently re-verified to the cent against a from-scratch reference model, not just unit-tested against itself.

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The calc engine was independently re-verified — a second model, built from scratch with no shared code, matched NEXIOS Real Estate Developer’s own output to the cent across eight worked deals, plus 400 seeded property tests and 300 fuzzed corrupt-project tests with zero violations. The Excel export was checked against an independent spreadsheet recalculation across the same eight deals: zero differences.

The model every developer already runs, done right

Every real estate developer already runs a “pro forma” before breaking ground: the model that shows whether a deal pencils. NEXIOS Real Estate Developer is that model, built to run the full picture a real deal needs — unit mix and rent roll, a cost budget, construction and permanent financing, a multi-tier LP/GP waterfall with the convention choices stated plainly, Monte Carlo and sensitivity analysis, and a tax module — not a simplified version that’s fine until the deal gets interesting.

Project operations run alongside the model: budget versus actuals pulled from your own books, lender draws, and document tracking — so the pro forma doesn’t go stale the day construction starts.

SEE IT IN ACTION

Real screens from the live product

Project setup and program summary

What’s in it

The full deal model

Unit mix, rent roll, cost budget, construction and permanent financing, in one connected model.

Multi-tier LP/GP waterfall

Preferred return, promote tiers, and the convention choices — equity-first vs. pari-passu funding, compounding basis — documented, not hidden in the formula.

Monte Carlo & sensitivity

Real XIRR under varying assumptions, not a single static case dressed up as an analysis.

Live-formula Excel export

Every output as a working Excel model, independently recalculated and checked against the app — zero differences.

An investor portal

Investor-expected totals checked server-side against a plausibility ceiling derived from the project’s own inputs — not just accepted at face value.

Project operations

Budget versus actuals, lender draws, and documents — tied to the same project the pro forma was built for.

New

AI support, grounded in your own deal

Bring your own Anthropic API key — nothing runs, and nothing is shown, without it configured.

Deal chat

Ask why the IRR looks the way it does in year three — answered from the real stored assumptions and the real calc-engine output for that deal, never a guessed number.

Sanity flags

An advisory check on save flags assumptions that look statistically unusual for the asset type — on top of the existing hard plausibility ceiling, never blocking a save on its own.

Suggest assumptions

General-knowledge starting ranges for cap rate, rent growth, and construction cost by market and asset type — suggestions you accept field by field, never applied for you.

The real NEXIOS Real Estate Developer workspace, right after sign-in

How the alternatives compare

The real field: free Excel templates at one end, enterprise software at the other — not much built for the firm in between.

	NEXIOS Real Estate Developer	A.CRE Excel templates	ARGUS Developer
Multi-tier LP/GP waterfall	Yes, with stated conventions	Build it yourself	Yes
Monte Carlo & sensitivity	Built in	Manual, per template	Yes
AI deal chat grounded in real outputs	Yes, BYOK	No	No
Independently re-verified engine	To the cent, published method	Whatever the template author did	Not published
Approximate price	Quoted per seat	Free–low cost per template	~$500/mo

Pricing

Per seat, per year, quoted. Email sales@polyapps-ai.com.

Run your next deal through it

A real site, real numbers — not a canned example.

Request a demo

sales@polyapps-ai.com