Rentalyzer by Rentalyzer

Rentalyzer overlays rental yield and profitability data directly on property listings from Idealista and Fotocasa, so you can evaluate investment potential without leaving the page.

What it does
- Displays Gross Traditional Rental Yield (GTRY) and Gross Room Rental Yield (GRRY) as color-coded badges on every listing card and detail page.
- Shows net yields, monthly cashflow, ROI, and ROCE on property detail pages.
- Compares conservative vs. optimistic scenarios side by side.

Financial Simulation
- Configure mortgage parameters (interest rate, term, down payment).
- Include purchase costs: transfer tax (ITP), notary, registry, renovation per m².
- Set monthly expenses: property tax (IBI), community fees, insurance, maintenance.
- Adjust vacancy rates and management fees for both traditional and room-by-room rental strategies.

Two analysis modes
- Market mode: Yields based on real market rental data for the area.
- Simulation mode: Yields calculated from your custom financial parameters.

Key features
- Works on listing pages, map views, and detail pages.
- Set a target yield to visually highlight properties that meet your investment criteria.
- Configurable search radius for market comparisons.
- Enable or disable analysis per portal.
- Available in Spanish and English.

Supported portals: Idealista, Fotocasa.

Privacy: Rentalyzer does not collect personal data. All settings are stored locally in your browser.