Our tiny house trailers of 7.2 metres and shorter are usually rated to 3.5 tonne. At this rating it can be towed with a 4 wheel drive that has a rating of 3.5 tonne. A Toyota Land Cruiser for example usually has a rating of this so it can be used to tow a tiny house of this size.
For larger tiny houses we recommend using a Ford F250, GMC Denali or similar. If you don’t want to go down that route simply use the services of a tow truck company to move it for you. This can work out very cost effective as it will include insurance to which gives you the added peace of mind when moving something so important.