Energy Certificate for Commercial Property: Duties, Deadlines and Cost

An energy certificate (Energieausweis) summarises the energy characteristics of a building. For an office, shop or other commercial property, it can be needed for a sale or lease and may need to be displayed where the public visits. The certificate relates to a building as a whole, with separate treatment for parts only in the cases laid down by law. Its figures describe energy demand or measured consumption; they are not a guarantee of a future tenant’s utility bill.

Under the current German building energy legislation, an energy demand certificate must be issued promptly after a new building is completed. A new certificate may also be required after certain changes to an existing building when whole-building calculations are performed. For a planned sale, rental, leasehold or leasing transaction, a valid certificate must exist. The seller or broker presents it no later than the viewing; if there is no viewing, it must be provided promptly and upon request. After the agreement, a certificate or copy goes to the buyer or new tenant as the statutory rules provide.
In a public authority use with heavy public traffic over 250 m² of usable area, the owner must ensure a certificate exists and is displayed; if the owner does not predominantly use the area, the user takes over the display duty after receiving it. For other buildings with heavy public traffic over 500 m², a certificate must be visibly displayed once one exists. A private office without heavy public traffic does not acquire a display duty merely because it exceeds 500 m². Small buildings and listed monuments have specific statutory exceptions; check the actual category before assuming one applies.

A demand certificate (Bedarfsausweis) evaluates the building fabric and technical systems on a calculation basis. It is required for a newly constructed building and useful where consumption records are incomplete or the site has changed substantially. A consumption certificate (Verbrauchsausweis) uses suitable measured data from at least 36 consecutive months, including a recent billing period that ended no more than 18 months ago. Extended vacancy is adjusted for. For a non-residential building the assessment covers heat, hot water, cooling, ventilation and built-in lighting as relevant, expressed per square metre of net floor area.
This choice affects the work to be commissioned. A multi-tenant building with incomplete electricity data may be unable to support a sound consumption certificate. Different uses within a property also make the demand calculation and data collection more involved. Commission a person authorised to issue certificates for non-residential buildings and give them accurate plans, floor areas, technical-system details and consumption records.

• A certificate is issued for ten years. Certain whole-building alterations requiring a new certificate can end its validity earlier.
• Have it available at the viewing; where no viewing occurs, supply it promptly under the statutory conditions. The required information belongs in a commercial property advertisement if a certificate already exists.
• For a portfolio, track the expiry date, the next sale or letting and substantial work on the building; a running lease alone does not create a fixed annual renewal cycle.

The advertisement rules distinguish non-residential property from housing. The energy values for heat and electricity appear separately; a residential efficiency class and residential construction-year fields are not the non-residential mandatory items. Transcribe the actual certificate values rather than replacing them with an efficiency slogan.

There is no statutory fixed fee. For orientation, Stadtwerke Düsseldorf listed a consumption certificate for a non-residential building with one meter at €249 in its price list effective 18 February 2026; additional meters and an optional local photo visit increase that provider’s price. Online offers for a non-residential demand certificate in September 2026 start at around €650, while another provider advertises a €899 fixed price. These are individual advertised offers, not a market-wide tariff. Complex zoning, missing plans, data collection and on-site assessment can produce a higher quote.

The certificate can draw attention to inefficient heating, cooling or lighting, but it does not replace a detailed energy audit or an operating optimisation plan. Keep its underlying records and expiry date alongside the asset register. Wowworks coordinates local building-technology trades for commercial properties in Germany, so a facility team can follow up suitable HVAC, lighting or repair measures across sites. The authorised assessor issues the certificate and the owner fulfils the property transaction duties.

To organise technical measures prompted by your commercial energy certificate, contact Wowworks. We coordinate local trades for heating, cooling, lighting and repairs and help your facility team track the work across sites.

Wowworks coordinates local building-technology trades for commercial properties in Germany. If an energy certificate prompts further checks or work on heating, cooling or lighting, a facility team can route the technical work to suitable contractors and track orders and documentation centrally. This helps follow up measures across several sites. The authorised assessor remains responsible for issuing the energy certificate, while the owner fulfils the duties associated with marketing and handing over the property.