We make life easier and business better for everyone in the Central District Alliance Business Improvement District (BID). This is where London's best connected postcodes come together. Holborn, Bloomsbury, St. Giles, Farringdon and Clerkenwell. CDA is the epicentre of London. It's synonymous with design, innovation, history, character and culture. And soon, it will have even more. Unrivalled transport links with Crossrail and the Thameslink upgrade imminent plus a surge in tech businesses and startups, are cementing CDA’s position as the go-to place for business in London.