REAL ESTATE ANALYSIS TOOL

Analyze real estate deals in minutes

A simple cashflow-first calculator to evaluate rental properties using practical, real-world assumptions.

Built on the framework from The Spanish Wealth Model (Das spanische Vermögensmodell).

Simplified model. No individual tax, financing, legal, or investment advice.

Inputs

Example values are loaded by default. Update any field to model your own scenario.

Property

Financing

Enter your own capital contribution. Loan Amount and Loan-to-Value (LTV) are derived automatically.

Ongoing Costs

Maintenance Reserve

Optional

Results

All values update live as you change the inputs.

Loading assessment

Investment Overview

Closing Costs
Total Investment
Loan Amount
Loan-to-Value (LTV) — automatically calculated

Rental and Cost Base

Annual Rent (adjusted)
Maintenance Reserve
Non-recoverable Costs

Financing

Annual Debt Service / Annuity
Interest Portion Year 1
Principal Repayment Year 1

Cash Flow

Cash Flow (before financing) — before debt service
Free Cash Flow — after full financing
Free Cash Flow / Month

Wealth Effect

Equity Build-up (Principal Repayment)
Total Annual Wealth Gain
Total Wealth Gain (with appreciation)

Return

Return on Equity (ROE)
ROE incl. Appreciation

Questions about the model or how to interpret the result?

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