As lily has said really.
I've got a dwarf lop and a mini lop
They have their own bedroom which is 100sqft, and run of the house during the day.
Daphne used to live in the front room, in a commercial indoor cage when she was around 8 weeks and still undergoing her chew training - I hated having her in it as she was ALWAYS desperate to get out.
Here you can see about 1/2 the cage
We then bonded her with Phoebe and they had a set up in the front room which met the 60sqft recommendation.
But that was awkward and took up the whole front room so that's why they moved into the other room.
If you're unable to provide their own room I recommend sectioning off at least 60sqft of a room using puppy pens, or have a "den" such as a 6ft x 2ft hutch that never gets shut and make them completely free roam.
You could also look at Manor Pet Housing or Boyles Pet Housing for a bespoke made indoor house for them that makes the 60sqft (if you want something prettier than the puppy pens).
The only reason we don't free roam these two all the time is because we have other pets that are active at night and we don't want any accidents between the three species.
My two girls - any excuse to show them off lol
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