Just to be clear:
Phyllostachys is a leptomorphic (running) not a pachymorphic (clumping) genus of bamboo, despite BBC gardening programmes saying the opposite. It is, I believe, Phyllostachys aureosulcata that has become the ineradicable invasive weed that covers the hillsides of the Azores. But in typical British growing conditions, several kinds of Ph. commonly sold in Britain, including nigra, are usually not invasive. But you might have a different experience if you are living in a mild damp part of the country and choose one of the more spreading species.

If you want a truly clumping bamboo, choose Fargesia, Thamnocalamus or Borinda, or (if you are mild enough to grow them) Drepanostachyum or Himalayacalamus.

You will not find eradicating an established grove of bamboo an easy job, unless perhaps the developers lend you their mechanical digger. The alternative is to install a rhizome barrier. Visit Jungle Giants website, they'll tell you about it. In Britain, 50cm deep is usually plenty. The developers removing 120cm+ of soil will indeed eradicate it. Though if sections of rhizome with buds remain in the soil and the soil is put back on the surface, it will return...