But step inside, and you'll get a glimpse of the future: The owner, Lars Hinrichs, has completely digitalized the building.
The onetime Xing owner, who became a multimillionaire with the sale of the social media network, has brought together several leading appliance and engineering companies to build a smart house, garnering praise from information specialists who call it a "pioneering work."
Whether the building lives up to its ground-breaking reputation will be seen later this year when the first renters are set to move in.
Do potential residents have to be tech know-it-alls in order to live there? "If you know how to use a smartphone, then you'll be just
fine," Hinrichs says. Several apps act as high-tech versions of a butler, monitoring the apartment's temperature settings and telling users when the elevator has arrived. "The kitchen lets you know the best way to prepare a cut of beef," adds the 39-year-old Hinrichs. Turn the stove range on, and the exhaust hood automatically springs to life as well.
Residents can turn on their washing machine even when they're not at home. The appliance can determine how much soap to use based on an analysis of how dirty the laundry is.
Or perhaps you want to take a hot bath when you get home? Just tell the apartment and it will start running the water for you. It also knows when a window is open, thanks to sensors, and cuts off the air coming from the vents.
Even the lights know what time it is and will adjust accordingly. Mornings mean brightness while evenings have a more candle-light atmosphere.
"The entire house is in the cloud. All the devices, whether the ventilation or heating systems, the lights or the door technology - all of it's in the cloud, on different servers," says Hinrichs.
Speaking of doors: There's no need to carry a bundle of keys for this home.
The apartment can be opened with a Bluetooth connection to the resident's smartphone.
The smart home's letter box will also send an alert whenever a package or letter has arrived.
What some might see as unnecessary and overpriced bells and whistles are for Hinrichs a deliberate investment, even though he won't name the exact figures for how much he's spent, nor how many leases have been signed.
For now, whoever is willing to pay 3,850 dollars per month or more to live in Hinrichs' building will remain incognito.
Kai von Luck, a professor of applied computer sciences in Hamburg who works with technology in the living space, signaled his respect for Hinrichs' work. "He's created a prototype that must now be able to
function in real-life situations."
While some appliances have here and there already started to incorporate smart home technology, Hinrichs is the first to combine them all into one, explains Luck.
All images Bodo Marks/ DPA