Park Hill was the most ambitious inner city housing scheme of its time. Designed by Ivor Smith and Jack Lynn and built between 1957 and 1961, Park Hill dominates the eastern skyline of Sheffield. In 1997, it was listed at Grade II for its architectural importance, its ground-breaking use of 'streets in the sky' and its impressive scale. By that time, however, it had become run down. Branded a crime-ridden eyesore, it was no longer a desirable place to live. A regeneration project is in hand to transform the estate into a safe and vibrant place to live. English Heritage provided a grant for repair works to the reinforced concrete frames which form the structure of the flats.