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Groningen, Karaat

  • Status Delivered
  • System typeWKO
  • Number of residences77
  • Ground energy for heating and cooling
  • Residential and commercial spaces
  • After completion 30 years in operation at Vaanster

Congratulations on your new home. 
Here you will find specific information on Karaat in Groningen. 

Vaanster wishes you lots of living pleasure!

WKO Sustainable Energy System

The Karaat project originated from a municipal competition, which we won with our cooperation partner BPD Ontwikkeling BV. The name of the apartment building 'Karaat' stands for diamond and gold. Less than five minutes from Groningen's city centre, it houses 77 gas-free, energy-efficient new-build flats and 7 commercial spaces. A WKO (heat and cold storage) system provides heating for the building and hot tap water. With robust brickwork and golden window frames, the design is a nod to the authentic buildings in the Oosterpark neighbourhood.

The flats vary in size and have balconies, loggias or large roof terraces. Some of the flats have been bought by an investor, who will offer the flats as free-sector rental upon completion. In the tall part of the building - the residential tower - there are 37 flats for sale, consisting of 2- and 3-bedroom flats.

Would you like to know more about one of the sustainable energy systems for your project? We would be happy to get in touch with you to discuss it together.

Property boundary

The ownership boundary indicates which parts Vaanster operates, maintains and, if necessary, replaces. The other components are owned by the homeowner, who is therefore also responsible for maintenance and possible replacement. For owner-occupied houses, you are the owner of the house yourself. For rented houses, the landlord is the owner of the house.

The image is a schematic representation of the installation in your home. The components in your home may be positioned differently.

Do you have any questions? Check the 'Frequently asked questions' on this website.

Frequently Asked Questions

Malfunction in heat delivery

There is a failure in the heat supply. This is annoying and you want it solved as quickly as possible.

Who is responsible for the system in my home?

The answer to this question varies from project to project and is indicated by an ownership boundary. You can look this up by typing in the zip code on the home page.

Disturbance in delivery of cold

You suspect a fault in the supply of cold. That is annoying and, of course, you want it resolved as quickly as possible.

Can I adjust my advance payment amount myself?

Yes, you can. In your personal account under the heading "my invoices" you can adjust your advance amount. This is within a certain margin, because the advance payment amount must be sufficient to cover the fixed costs.

Click here to go to your personal account and log in to adjust the data. Click on create account the first time you visit the page.

Malfunction in the hot water supply

It is annoying when hot water does not come out of the tap. It is important to determine:

  • Whether there is reduced hot water or no hot water at all.
  • Whether there is no hot water coming from any faucet (also called tapping point) in the house or whether there is a single faucet from which there is no hot water.