Since H1 2015 the retail warehouse pipeline has increased marginally, by 1%, but space under construction rose by 20% from .98m sq ft in H1 2015 to 1.18m sq ft in H2 2015. In recent years, demand for units on retail parks has increased, resulting in lower vacancy rates. Local Data Company vacancy rates on UK Retail Parks are 6.2%, significatnyl lower than High Streets (11.5%) and Shopping Centres (14.1%).