New building rules force landlords to upgrade safety and energy systems by 2025

Time's running out for landlords to comply with sweeping safety and efficiency rules. Tenants could see rent cuts if upgrades aren't made—here's what's changing.

, and Administrator

2026 March 30 . 6:14 AM

1 min read

The image shows a poster with text that reads "Upgrade Your Home with a Heat Pump" and an image of... — The image shows a poster with text that reads "Upgrade Your Home with a Heat Pump" and an image of a heat pump. The poster is likely advertising a service that allows customers to upgrade their home with a new heat pump, providing a convenient and efficient way to keep their home warm and comfortable.

New building rules force landlords to upgrade safety and energy systems by 2025

New building regulations are bringing major changes for landlords and tenants. From smoke detector replacements to stricter heat pump inspections, the rules aim to improve safety and energy efficiency. Detlef Poullie has broken down the latest requirements for Extra-Tipp readers.

Smoke detectors installed in 2016 must be replaced by the end of this year. After ten years, the sensors often fail, so entire units—not just batteries—need updating.

Landlords of multi-family buildings with central heating had until December 31, 2021, to swap old heat cost allocators for electronic models. Those who missed the deadline for remote-readable meters by December 31, 2024, now face fines up to €50,000 under the Building Energy Act (GEG). The Heating Cost Allocation Regulation (HKVO) also demands these devices, with further penalties for non-compliance. Heat pumps installed in 2024 require an operational inspection this year. Going forward, these checks must happen every two years. Additionally, meters tracking heat pump electricity use must now be installed. Landlords must also provide tenants with annual energy prices and CO₂ emissions data. If they fail to fit the required heat cost allocators, tenants could qualify for rent reductions.

The changes tighten safety and efficiency standards for rental properties. Landlords who ignore the rules risk heavy fines, while tenants gain clearer energy data and potential cost savings. All smoke alarms from 2016 must be replaced before 2025 ends.