'privatbostad' eller ' näringsverksamhet '

hej!
I am resident in Sweden and am thinking of buying a terraced house (rådhus?) , together with a friend in London. We will own 50% each. We are buying the house as an investment and will rent out each bedroom ( 4 different tenants)
My idea is to live in the house when I eventually move back to England , but not before perhaps 10 years

My question is, how is the rental income i will get etc declared. Would it be considered a 'privatbostad' as it is a house that i intend to live in eventually , or is it considered ' näringsverksamhet '
The rule that i have read that i think applies to me i have pasted below but am unsure how to interpret this in my situation

inkomstskattelagen 2 kap. 8 §: " 8 § Med privatbostad avses ett småhus som till övervägande del
används eller är avsett att användas av ägaren eller någon
närstående till honom för permanent boende eller som
fritidsbostad.

mvh
Sam
ps reply in swedish ok ;-)