This magnificent gabled structure serves as an activities center and crèche for the Wilberforce Primary School in Westminster, London. But it used to be nothing more than a dimly lit portakabin. Designed by Jonathan Tuckey Design, the timber-lined gatehouse features three skylights that provide both abundant natural daylight and ventilation. Best of all, the building was put together on a limited budget, which just goes to show – great design doesn’t have to be expensive.