A tiny house makes an unusually good rental unit — distinctive enough to be booked for its own sake, small enough to turn around quickly. It also sits squarely inside the short-let regulation that European cities have been tightening for a decade.
The regulation comes first
Short-term letting is regulated municipally almost everywhere in our destination markets. Several Dutch municipalities operate registration duties and caps on nights per year. German cities apply misuse-of-housing bylaws. Danish summer-house letting is governed by statute and often runs through agencies, with tax treatment that depends on how the letting is arranged. Swiss tourist municipalities add second-home rules and visitor taxes. Check the rules for your specific municipality before the investment decision, not after.
What guests actually pay for
Distinctiveness and the view. A unit that photographs well and sits somewhere worth being outperforms a larger, blander one at the same price. That is the commercial case for MD 1 where there is a view, MD 4 where there is outdoor life, and MD 6 where the setting is alpine or northern. It is also the case for MD 8: the upgraded specification line shows up in reviews, and reviews show up in occupancy.
The costs that decide the return
Cleaning between stays, laundry, platform commission, wear on hardware and surfaces, and a replacement reserve. Energy is rarely what moves the number. Two guests staying three nights generate roughly the same cleaning cost as two guests staying one night, which is why minimum-stay policy affects margin more than nightly rate does.
Operating more than one unit
The economics improve with the second unit and again with the third — cleaning routes, laundry contracts and maintenance visits all amortise. That is where the range matters: MD 7 as a volume unit, MD 2 for groups of four, and one MD 4 or MD 6 as the unit that carries the photography for the whole site.