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Grover Close, Hemel Hempstead


Housing in suburban areas is rarely successful in English towns. Detached and semi-detached houses are built on small plots in what rapidly becomes a car-dominated environment.  The outcome is neither urban nor bucolic.

Our scheme in Hemel Hempstead for Hightown Praetorian and Churches Housing Association for 56 flats revisits eight plots in a 1950s suburb adjacent to the old town, at a time when both social landowners and the private sector are seeking to redevelop land at much higher densities than previously permissible. Here we achieve a density of 144 habitable rooms per hectare but the new residents will not have to forgo a quality of life in exchange for this high density. Instead the construction of an underground car park in a sense returns the land to its original undeveloped state. Our scheme seeks to balance building footprint, parking and amenity.

Four pairs of semi-detached houses have been exchanged for four detached pavilions arranged in a chequerboard pattern. Contrary to common practice which seeks to define place with tightly defined streets, here, place is derived from the land itself, both from the topography and from the trees. Although from a distance the disposition of pavilions suggests this is open land their arrangement creates forecourts and rear courtyard gardens marking out clear defensible space.



The blocks vary in height, two are 3-storey, the other two, 4-storey. Each stands on a different contour, their varied height, position and roof-form creating, as you approach the site, a complex continually changing roofline.

Inside each 18m x 18m block there are four flats per floor, mixing 1-bed, 2-bed 3-person and 2-bed 4-person accommodation. Each has a central hall and each is accessible from the car park below ground. Roof forms are predicated on the roof space being inhabited behind steep mansards linked in section by a butterfly roof, visible in the other two gable elevations. Each is clad on two elevations in brickwork, the other two in vertical timber boards. The timber windows follow a chequerboard pattern similar to that used to plan the scheme. Window casements, in effect doors, are generous.

Butterfly roofs conceal solar thermal heating panels providing hot water on site. The compact plan and section of each pavilion, effectively a cube, minimises surface area and therefore heat loss.