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Usually a month or less before the lease start. At a spring and summer time even earlier.

The housing offer is sent the the e-mail address you left to the application. We recommend to check also the spam post folder in a case the offer has gone there.

With the housing offer you get the terms of the lease and instructions how and when you need to confirm the offer on your side.

Waiting list for a studio is approx. 10 months. Also your requirements regarding the location, size and rent affect to the waiting time.

Remember the application is valid three (3) months at a time and you need to renew it time to time to keep it valid.

When you apply, you can add the name of wished flatmate(s) to the application. We’ll take the wish into account when possible.

If your flatmate is moving out and you have a friend who would like to live with you, contact the office.

All the apartments have kitchen cabinets, fridge, stove and oven, fixed lamps and wardropes.

Some shared apartments are with Koas furniture ready and some not.  Study carefully the apartment offer you get. Separate fee “furniture” in addition to rent mentioned means the apartment has also bed and mattress, desk, chairs, dinning table and curtains. Exchange students usually have also extra kit with bedding and kitchen cuttlery.

Only shared apartments can have Koas furniture.  Except a few ministudios in Koppari are with Koas furniture. Koas furniture is not an optional service to have to non-furnitured apartment/room or vice versa. In this case you might need to consider to change an apartment.



You will receive a message during the month preceding the start of the rental agreement about picking up the key from the Koas Keybox.

If the first day of the month falls on a weekend, the key will be handed over on the first working day of the month. Read more about keys here.

The maintenance company is on call 24/7 and can open the door. Service is chargeable. Contact

On a following working day, contact the housing office.

We highly recommend home insurance for all our tenants. Read more: Home insurance

Yes, as long as you use the correct reference number, the money will be automatically allocated to the rent. Read more: Rent payment

The rent payment is fixed for the 6th of the month. If you wish to pay the rent on some other day, contact the controller to agree about the payment day. Interest will be counted after the 6th. Read more: Rent payment

No. The rent is the same in every month of the year.

Koas allows the tenants to temporary sublet the apartments to a third party for a maximum of 1 year. During the summer months, the subletting tenant doesn’t need to be a student, but otherwise also the subtenant needs to be a full-time student.

Airbnb type of renting is not allowed.

Read more: Temporary subletting

You can activate Telia internet by calling to Telia customer service +358200 11611, or by registering online on Telia website.

Network is Telia Yhteys kotiin L and speed of network is 100/100 Mbit/s. If you have problems you can contact Telia customer service +358200 11611.

Remember, that in studios and family flats, there is only one active internet socket per apartment. In shared flats, one active socket per one cell room. If you wish to use another socket, make a fault report via Koas website, where you tell which socket you would like to active.


It is not allowed for the tenant to do any renovation work. Read more: Renovation

For wall mounting you should use the so called board list. To get the hangings at different heights use the fishing line. Avoid fasteners that require drilling. Make sure that the HVAC technology does not run at the attachment point. Do not use decorative mirrors or other tape fastenings, because the paint surface will suffer. Do not attach a chin-up bar to the door frames. The frames can’t handle this. Prefer light fixtures and free-standing furniture.

Larger marks require fixing and painting the entire wall to make the wall clean. Depending on the case, the repair costs may be invoiced to the tenant.

Read more: Apartment maintenance

Yes, it is possible with your own cost. Although it has to be left to the door when you move out. Safety locks are not allowed to install.

Renovation and modifications

Koas will not install machines but tenant has to order the work from a professional and pay the costs. If the dishwasher reguires small changes to the cupboards, make a faul report on Koas website. Koas maintenance will make the changes.

Remember to store the cupboard and return it on its place before moving out and also plug all water point pipes accordingly. Houshold machines

The temperature of the water in the heating pipes is depending on the outside temperature. The colder it is outside the warmer the water in the pipes is. The room temperature should be around +21 degrees during the colder months when the heating is on.

If it feels that it is cold in the apartment, first measure the temperature, about one meter high from the middle of the room. If the temperature is clearly below +21 degrees several days, you may fill out the fault report on Koas website and the maintenance will check the situation.

During summer time, the room temperature might be higher as there is not any cooling system in the Koas buildings. It might help to cool the flat when the curtains are kept closed during the time when sun is shining to the apartment and the ventilation window is opened during the evening or night time, when it is cooler outside. Heating

In Koas, we have different systems in different locations. If you do not have the instructions how to adjust the air conditioning in the flat, it means that in your building it works automatically for the whole building.

You may test that the air conditioning is working as it should be, by placing a piece of toiletpaper on the air conditioning valve. If the paper stays on top of the valve, the ventilation is working normally. If not, please make a fault report about that in KOAS webpage. Check as well valves are clean of the dust.

Also, if you notice that there is steam or frost between the windows, the air condition is not working correctly, and it would be good to make a fault report about that. Ventilation

If possible try to identify the species. It is important to leave a fault report on Koas website to get the pest controller at place. Pests

For the time being there are no electric or hybrid car charging stations in the parking areas of Koas housing sites. However, we are actively researching for different options.

Until then, please note that it is absolutely not allowed to charge a car or such vehicle in the current car parks in Koas housing locations. First of all it causes big safety risks and it is not just and fair for other Koas tenants.

BBQ at the balcony is allowed, but with fire safety instructions in mind. The use of an electric or gas grill is permitted at the balcony. Remember and prefer to use the BBQ place in the building yard instead of barbecuing at the balcony.

Making an open fire on the balcony is not permitted. For example, disposable grills or charcoal grills may not be used on the balcony. When using a gas grill, you must remember the regulations related to gas bottle storage: a maximum of 25 kilograms of LPG can be stored in the apartment so that the gas tank does not get heated in the sun, for example.

It is good to take the risk of fire into account when grilling on the balcony. Always have a fire extinguisher close at hand.

BBQ at the balcony is naturally accompanied by the smell of food, sometimes even noise. If the grilling involves disturbing behavior at night or if it otherwise violates the order and safety rules, it is advisable to discuss the matter directly with the neighbor or discuss the matter with the Koas tenant advisor.

We welcome pets almost to all family and studio apartments,  Exceptions: all Seminaarinmäki apartments are not pet friendly. Also in a shared apartment it is not possible to have pets.



Moving out

Noticetime to end the rental agreement is one calendar month. If tenant wish to end the agreement to the end of December, the notice has to be given by the end of November.

The rental agreement will end when the tenat gives online notice to the lessor (Koas). The notice time is one calendar month.

If you have an agreement with fixed period (ending day is mentioned on the lease), notice is not needed or possible. Lease termination

No refund will be paid because the agreement period is always for full month. Rent must be paid for the whole duration of the lease.

The key will be returned to the Koas Keybox. You have received a message and the PIN code during the last month of residence about the returning of the key to the Koas Keybox.

If you have not received the message to return the key to Koas Keybox and the office is closed, you can drop the keys in an envelope marked with your name to the drop box next to Koas office entrance;  on 2nd floor in address Kauppakatu 11 a. The building entrance  door  downstairs is open from 9am to 8pm.

Even if the damage is not done deliberately, the tenant is still responsible of the costs. Tenant is responsibility to keep and vacate the apartment clean and in good condition.

Condition check and liability for damages

Apartment maintenance