Personally I have considered future generations wanting humans to produce stuff may bring in dormitories, as in some ways certain modern Chinese factories do, with workers all living, eating and sleeping on the premises.
This would be beyond ideal for the Houses of Parliament. Instead of living allowances, London homes, or country homes, shove them all together in a large purpose-built block of flats, as a stakhanovite shock worker's brigade, along with their families and staff; all with the amount of floor-space each considered suitable for social housing tenants.
Westminster Council has calculations for HMOs --- Houses of Multiple Occupancy: difficult to be precise with all the variables, but either sleeping alone in a bedroom, or for sharing with a significant other, comes to 1 person bedroom : not less than 6.5 m2, or 2 person bedroom : not less than 10.2 m2.
So they can do any homework away from their office, MPs could work in lounges.
Westminster says: Where there are more than 20 occupiers in the property a lounge area shall be provided for residents’ use. The area (or aggregate areas, if more than one is provided) shall be calculated on the basis of 1m 2 for each occupier; no lounge provided should be less than 10m 2 in area.
Plus suitable kitchen and necessary bathrooms, etc. space.