Digitalization for historically evolved systems in the Housing Sector
We develop software solutions that help you evolve existing systems, automate processes and make data usable — without unnecessary system replacements.
Through the targeted use of AI, we analyze evolved systems faster, develop prototypes in a short time and implement new solutions more efficiently. Upon request, we also take responsibility for existing systems — from analysis and stable operations through to continuous further development.

Typical Challenges Our Clients Face
In the housing sector, high data complexity, regulatory pressure and historically evolved IT landscapes come together. This is exactly where the most expensive friction arises.
Too Many Manual Processes
Service charge billing, reporting and data maintenance are often partly manual. Excel lists replace structured systems and make processes slow, error-prone and dependent on individual people.
Missing Integration Between Systems
ERP, billing and metering systems are not properly connected. Data is entered, transferred or corrected multiple times — media breaks slow down the entire process.
Evolved Legacy Systems
Systems have evolved over many years, while documentation is missing or incomplete. As a result, changes become expensive, risky and often internally nerve-racking.
Increasing Regulatory Requirements
Energy, ESG and billing requirements are increasing. Data must be processed consistently, traceably and audit-proof — under time pressure and with existing IT.
Slow IT Projects
Large initiatives often take months or years. At the same time, there is not enough flexibility to implement new requirements quickly or to start pragmatically with a robust prototype.
Too Little Transparency in Data Flows
Metering data, consumption information and billing logic may exist technically, but they are not cleanly usable in operations. This makes analysis, management and further development more difficult.
Our Services
We develop solutions for real challenges in the housing sector — with a focus on integration, automation and economically sensible modernization.
Digitalization of Core Operational Processes
Integration & Modernization of Existing Systems
Custom Software Development
Faster from Complex Existing IT to Working Solutions
We do not use AI as decoration, but where it creates real value in the housing sector: understanding evolved systems, reverse engineering, rapid prototyping and replacing manual Excel-based processes.
Why We Are the Right Partner
For the housing sector, technical capabilities alone are not enough. Market understanding, reliability and the ability to handle existing complexity professionally also matter.
German Leadership
German management and business development ensure clear communication, proximity to the market and an understanding of requirements in the DACH region.
Strong Development in Poland
Highly qualified development teams in Poland enable economically efficient delivery without compromising on quality, speed or technical depth.
Experience with Complex Data Processes
We know data-intensive processes from energy, metering, billing and integration projects with high requirements for stability and traceability.
Realistic Modernization
We do not replace systems reflexively. We modernize where it makes functional and economic sense. This reduces risk, time and budget.
Industry Understanding from Real Projects
We bring experience from projects in energy, smart metering, billing, portals and data-driven platform solutions.
Landis+Gyr Environment & Energy Management

Experience in the context of energy and smart metering solutions, as well as processing and integrating technical data streams into operational processes.
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Automated Energy Cost Billing
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Leading Metering Service Provider
Implementation of solutions for automating energy cost billing for large housing portfolios — including data readout, monitoring and handover to billing systems.
Additional References from the Housing Sector
In addition, we have delivered projects for major market players in the housing sector, such as Berliner Immobilien Management.
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Leading provider of ERP and software solutions for the housing sector in Europe
Typical Use Cases
Our Approach
Step by step, robust and focused on fast results instead of endless PowerPoint acrobatics.
Analysis
Understanding existing systems, processes, interfaces and bottlenecks.
Identify Potential
Defining concrete automation and integration steps with real business value.
Develop Prototype
Rapid development of a functional prototype to validate the solution and its value.
Scale into Production
Step-by-step implementation into a stable solution with low risk and high acceptance.
Let’s Talk About Your System Landscape
Clear. Direct. No Buzzwords.
Whether manual billing processes, missing integration or evolved IT structures — we take a detailed look at your situation and identify concrete solution approaches.
