Custom Tenant Experience App Development Services

Off-the-shelf platforms get you live in a week, but every workflow, integration, and pricing model is shared with thousands of other operators. Custom software wins when you need branded UX, deep Yardi or MRI integration, smart-building hardware control, or AI features the SaaS vendors won't ship, and when your portfolio is large enough that platform fees plus integration workarounds exceed a one-time build.

A focused MVP with a tenant app, payment integration, and a basic manager portal lands between $80,000 and $150,000 per industry average. A mid-range build with maintenance workflows, lease management, and 2-3 accounting integrations runs $150,000 to $350,000. Enterprise platforms with IoT access control, AI features, multi-tenant architecture, and migration from legacy commercial real estate software run $400,000 and up.

A working MVP ships in 3-4 months. A mid-range platform with full integrations and a property manager portal takes 6-9 months. Enterprise rollouts with IoT, multi-region deployment, and migration from legacy systems run 9-15 months with phased releases.

DBB Software delivers a proof of concept within 14 days of the project start, so stakeholders can see real screens before committing to the full build.

Both. We default to React Native or Flutter for multifamily housing app development because tenants expect identical experiences on both platforms and a single codebase keeps long-term maintenance costs down.

We go native (Swift, Kotlin) only when you need deep platform features like CarPlay, advanced ARKit, or sub-100ms Bluetooth handshakes for access control. Most clients save 30-40% on the build with cross-platform.

Yes. We've shipped real estate API development work that connects to these solutions, including the JLL Salesforce + Sitefinity integration.

If your accounting or PMS exposes a documented API or SFTP file feed, we can integrate it. For undocumented legacy systems, we run a 2-week reverse-engineering discovery and quote a clear integration scope before committing.

Payment flows go through PCI DSS-certified gateways like Stripe, Adyen, or Braintree. GDPR-compliant real estate software patterns (data residency, right to erasure, consent logs) are built in from day one.

For US clients, we structure tenant screening, occupancy reporting, and waiting-list logic to align with HUD, Section 8, and Fair Housing Act requirements. We also build to ISO 27001 software development and SOC 2 control patterns so your enterprise security questionnaires pass on the first review.

Yes. The Casavi MongoDB-to-SQL reporting migration ran with zero downtime, and Plaace's blue-green AWS rollout is another live example of how we refresh legacy systems. Our process is data audit, dual-write window, parallel-run validation, then cutover during a planned low-traffic window.

We also handle mapping undocumented schemas, cleaning duplicate tenant records, and reconciling rent ledgers between old and new systems before launch.

Yes: IoT and smart-building convergence is a core part of modern tenant experience app development. We are capable of integrating Bluetooth and NFC mobile credentials for door access, MQTT and BACnet feeds for HVAC and energy meters, and reservation-based lock control for shared amenities like gyms, lounges, and EV chargers.

The middleware layer is the part that breaks most projects. We build it on AWS IoT Core or Azure IoT Hub so telemetry from thousands of devices stays performant and secure under real building load.

Four are production-ready right now: predictive maintenance from sensor and ticket data, AI tenant support chat, rent delinquency forecasting, and lease document extraction. Plaace's AI-powered assistant is a live example of conversational AI on a real estate platform.

We're also shipping agentic AI workflows that autonomously route work orders and chase vendor responses. Skip machine learning property valuation as a tenant-app feature.

You get 1-hour incident response and 24/7 monitoring. 80% of our clients stay with us 7+ years, so the team that built your platform is the same team supporting it three releases later.

Typical post-launch retainers run $8,000 to $25,000 per month, depending on platform scale, AI feature load, and the number of integrations under SLA.