Fraser Bond are the leading lettings and property management agents for Riverwalk - London SW1P. Riverwalk is an apartment building on Millbank in London SW1. Riverwalk is a collection of highly specified 1, 2, 3 and 4 bedroom apartments and penthouses with a focus on light, space and service, as well as exceptional views across the River Thames. Spread across two organically shaped buildings, the 116 apartments are ideally located in prime central London, moments from Tate Britain and a broad range of cultural and shopping amenities. History Former Riverwalk House site. Riverwalk House was.