Officials say building in Nairobi’s Eastleigh area had no occupation certificate, but ground floor was in use. The building was under construction when it collapsed at about 1 p.m. along a busy commercial street in Nairobi's Eastleigh area, which is often crowded with thousands of traders and residents. NewsFeed Many feared trapped after Kenya building collapse. Many people are feared trapped after a multi-storey building collapsed in a densely populated business and.