Mythical Beasts and the Building Site

In the Unicorn cafe, which is sort of like the Southwark Council Staff Canteen (due to its proxmity to the building and cheaper than other eating nearby), looking out onto a building site. They're extending the only remaining old building (leaving the front as was and putting on a new build back end). The big steel structure is in place already. On the first floor they have constructed what looks a bit like a false ceiling held up on many uprights that appear to be made of some kind of yellow plastic. Sunlight is dappling through like in a beech tree forest. Yesterday the architects and project managers (6 of them) were walking round in a group pointing at things collectively - men with big bellies, clipboards and hi-viz jackets over suits - clearly not scaffold monkeys used to clambering around. Today a gaggle of workmen - hi-viz jackets, hard hats, utility belts and rolled up sleeves - work in the corner putting up the rest of the yellow structure, one half way up the ladder, one at the bottom, one perched on the 2nd floor steels. In another corner - at the edge of the building two others drape green mesh round the steels and scaffold. The foreman is resting his arms on a steel and 'supervising'. Its like a giant jumgle gym. I'm worried its going to ruin the original building, but its too late to stop now.