Product

Rentier.app

Property Management SaaS for the Polish Market

In active development

A premium SaaS platform for managing residential and commercial property rentals — built for individual landlords and portfolio managers.

Designed from the ground up with architectural discipline: DDD, CQRS, Event Sourcing Lite. Every state change is an immutable domain event. Multi-tenancy via row-level isolation with Laravel 13 Context — no subdomain complexity, no data leakage.

Architecture Highlights

5 bounded contexts: Identity & Access, Subscription & Billing, Property Management, Lease & Financials, Tax & Reporting

Full audit trail via append-only Event Store

Built-in tax assistant (Polish ryczałt 8.5%/12.5%)

PHPStan Level 9 — zero type errors tolerated

TDD from the first line, No-Magic Policy (no Facades in domain layer)

Stack

PHP 8.5 · Laravel 13 · React 19 · Inertia.js · Tailwind CSS 4 · PostgreSQL · Redis · Docker · Kamal

Visit rentier.app