The 650 MPs and staff will decamp to the new home from mid-2020 while the crumbling Palace of Westminster undergoes a £3bn refit.
The Palace of Westminster needs extensive restoration and concerns have been raised about the fire risks at the historic building.
The North Dial is now fully visible after the surrounding scaffolding was removed and its hands and numbers appear to have changed colour.
Ministers are urging a major renovation programme at a cost of around £3.5 billion to be brought forward as a matter of urgency.
There is insufficient evidence to justify the proposals to move the Lords and Commons out of the Palace, according to a committee.