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Market Context

Agents struggle keeping clients engaged and remaining "top-of-mind" after a deal closes.

Alongside our client, we set out to solve this critical gap in the real estate sales lifecycle.

The Loyalty Paradox

91%

of homeowners say they would work with their agent again

BUT
26%

actually do for their next transaction

The Engagement Gap

Real estate professionals lacked tools to engage clients between transactions.

Deal ClosedNext Transaction
Engagement Gap
Our Vision

CORE Home: A Strategic Solution

We envisioned an app that offered a strategic answer to the engagement gap.

CORE Home

A brokerage-owned, consumer-facing experience that drives loyalty, repeat business, and long-term value by keeping agents involved well beyond the closing table.

A fully branded white-label, multi-tenant mobile and web platform that helps homeowners:

Track their home's value
Manage maintenance
Explore market opportunities
Stay connected with their agent

Brokerage Benefits

Rather than relying on third-party portals, brokerages could offer their own app, under their brand, to deliver ongoing value and build lasting client relationships.

Digital Home Base

The app would become a home base for homeowners, empowering agents to stay top-of-mind through every stage of ownership.

Tech Stack

Built with modern, scalable technologies to deliverenterprise-grade performance and reliability across web and mobile platforms.

PHP
Laravel
React
React Native
AWS
Challenges & Solutions

Complex Architecture Requirements

Building a new CORE Home required solving significant technical and architectural challenges.

Multi-Tenancy & White-Label Complexity
Challenge # 1

The new app needed to serve many brokerage clients in a single platform, each with their own branding, custom domains, and slight feature variations.

On mobile, every white-labeled app had to be built and updated in parallel, a complex build and release process that the original solution struggled to streamline.

With plans to onboard millions of end-users and hundreds of thousands of agents, the existing system risked performance bottlenecks and instability.

White-Label & Multi-Platform Enablement
Solution # 1

We set up an automated build and deployment process for mobile apps, allowing the client to generate branded iOS/Android apps for a new client with minimal effort.

Configuration management was introduced so that branding (logos, color themes, app names) and features could be adjusted per tenant, all while running off a single codebase.

On the web app side, dynamic theming was implemented to skin the user interface for each brokerage client.

Zero overhead for maintaining each custom-branded app.
Scalability & Performance
Challenge # 2

The app had serious performance issues due to a complex backend architecture that was not scalable.

The underlying database was not optimized for real-time queries, resulting in slow response times and high latency.

Architectural Redesign
Solution # 2

We redesigned the system as a cloud-native, scalable platform. The new architecture introduced clear separation of concerns (services for search, valuation, notifications, etc.), enabling components to scale independently as load grew.

Embracing modern best practices, the backend was refactored for multi-tenant operation, ensuring that a single deployment could securely serve many brokerages with configurable branding and settings.

Robust foundation for high throughput - 1M requests per day
Existing Customers & Data
Challenge # 3

When we came onboard, the app was already serving some launch/pilot customers, meaning we were working with a live system with real users.

Any redesign or migration would have to be done with care, considering the potential for data loss and loss of user data.

Downtime was not acceptable, and we had to ensure that the new system could be deployed without disrupting the existing system.

Phased Rewrite with Zero Downtime
Solution # 3

Rather than a risky full rebuild in one go, we implemented a phased rewrite. Critical pieces of the old system were gradually replaced with new modules behind the scenes..

This approach meant users and agents experienced no service disruption during the transition.

Our tactful communication and planning helped client's leadership buy into this iterative strategy.

Phased rewrite with zero downtime ✅
3rd Party Limitations
Challenge # 4

Some core functionalities were built on third-party services that proved limiting.

These external dependencies constrained customization, inflated costs, or were not scaling well under increasing load.

Eliminating Bottlenecks
Solution # 4

Wherever third-party services were impeding flexibility or scale, we built native replacements.

For example, a 3rd party authentication library did not have support for customized OTP emails.

Gave client full control over feature evolution.
The Result

The partnership between IRE and Danubio was a resounding success

In Fall 2022, the client launched CORE Home to one of their largest clients, eXp Realty, under the branded name “360 Home.”

Enterprise-Grade Stability at Scale

The rebuilt CORE Home platform now supports millions of client interactions daily, across web and mobile, with zero service disruptions. Danubio's architecture enabled dozens of customized apps (web + mobile) for different brokerages — all powered by a single codebase.

Strategic Differentiation

CORE Home became a centerpiece of the client's product suite and competitive advantage in winning and retaining enterprise brokerage clients.

30× Increase in Client Engagement

Homeowners using CORE Home were up to 30× more likely to re-engage with their agent compared to industry benchmarks.

Industry Recognition & Client Praise

Featured in top real estate publications and endorsed by brokers as a must-have tool for driving repeat and referral business.

CORE Home has given our agents the tools they need to easily stay relevant to their clients before, during, and long after the transaction has closed… we are thrilled with the value and engagement CORE Home will continue to bring.
RS
Ron S.
Brokerage Owner