Heimstaden cut the cost of producing virtually staged property images in the Netherlands by more than 99% using artificial intelligence, OpenAI said in a publication released on Nov. 3.
The cost fell from about €50 an image to less than €0.10, with potential annual savings of €130,000, the European residential property operator estimated. OpenAI, which supplies Heimstaden’s AI tools, published the figures in “Heimstaden is changing residential real estate management with AI.”
The account covered changes to rental advertising, environmental assessments and employee work since Heimstaden chose OpenAI in June 2025. It also described systems still being introduced or developed, rather than completed deployments.
Heimstaden used AI to support rental pricing, create apartment descriptions and digitally furnish property images, OpenAI said. Its account also described an AI tool that checks live advertisements against company standards and AI-generated market feedback that helps rental teams adjust their approach.
Employees still review and approve decisions, OpenAI said. Heimstaden’s chief digital officer, Nikolaj Brammer, said the company sought to improve entire business processes by combining employee training, centrally coordinated projects and changes to property data systems.
In environmental work, Heimstaden assessed 20,112 property assets and generated more than 6 million rows of usable data, OpenAI said. The estimated staffing requirement fell from five people working for a year to two people working for two months.
Julia Erlandsen, an environmental sustainability analyst at Heimstaden without a software development background, used OpenAI’s Codex coding tool to build the assessment process. OpenAI said the tool helped find, clean and standardise information scattered across public sources and datasets.
Erlandsen retained control over the methodology and validation, OpenAI said. The company also avoided hiring outside consultants for the project, although the publication gave no figure for those savings.
The environmental work is developing into a repeatable process for climate-risk assessments, reporting and investor decisions, OpenAI said. It presented the shorter staffing requirement as an estimate.
After Heimstaden launched ChatGPT Enterprise in September 2025, half its employees used it within two to three months, OpenAI said. Employees must use approved tools under data-security rules and review AI-generated content before sending it.
Heimstaden is rolling out a procurement platform that combines automated workflows with OpenAI models, the publication said. It supports contract analysis, preparation for negotiations and contract management across Microsoft applications, while employees retain responsibility for commercial decisions and approvals.
The company is also co-developing Amplio Estate, a property management system intended to let employees retrieve information and act in business systems through AI tools. OpenAI said Heimstaden’s longer-term aim is to use increasingly automated systems to anticipate needs and coordinate property work, with human oversight.
