Little models of homes/temples were offered to Sumerian gods and goddesses as part of worship rituals, asking the deity to protect the supplicant.
What struck me immediately I saw these were the similarities with certain Hindu ritual offerings. On Diwali in Northern India, Hindus create a small temple of sorts at home and clay temple models, quite similar to these, are placed front and centre. Offerings to the gods are made at this altar and earthen lamps lit around it. For comparison, see the pic below from my Diwali celebrations a couple of years ago.
That structure right in the centre (if you ignore the paint and glitter!) is quite similar to the Sumerian offerings above. Separated by a few millennia and countless generations (not to speak of thousands of miles), some traditions seem to have migrated and carried on, altered and adapted, but still alive.