Modules for the Halley VI British Antarctic base are under construction in Cape Town. This consists of large steel frame units on telescopic legs. The whole base can be adjusted for moving ice. Perhaps something on a smaller scale could be used for domestic modular buildings.
Part of the interior of the base is being built using pre-finished bathroom, bedroom and plant room "pods" which are then inserted into the steel frame. The pods are about the size of ISO shipping containers for ease of transport.
The pods are made by Servacomm Redhall Ltd in the UK, who normally make modular public buildings, including for schools.
Standard ISO shipping containers have 3 "twistlock" connectors on each of their eight corners. There are an assortment of devices designed to connect multiple containers together using the twistlock connectors together. These could be used to attach a containerized the building to its foundations.