Excuse me, is this where the Moomin family lives?

Don't think so - not sure their big noses would be able to get in and out of it. And isn't the Moomin house blue?

Anyway, this is one of the small allotment cottages (sheds) in Eriksdalslunden on South Island (Södermalm), Stockholm. It's #1, so I suppose it's one of the oldest. The area was founded 1906 by Anna Lindhagen (sorry, link only in Swedish - but take a look at the portrait if you like), a famous allotment pioneer, social worker and Labour party member.

One Year Ago: Kadriorg Palace

Cheers/M&Z