In April 2009, Archaeological Solutions Ltd (AS) carried out an archaeological and historic building impact assessment at Piccotts End House, Hemel Hempstead, Hertfordshire. The work was commissioned by Atelier Architecture and Design in order to support a planning application for the conversion of existing outbuildings. Outbuildings at Piccotts End House comprise a late 18th or early 19th century stable and carriage house, together with a mid-19th century extension providing extra accommodation for horses and a second carriage. A third, triple-gable granary dates to a short time after. This was subsequently modified to provide a carpenter's workshop. The appraisal found that despite internal remodelling and modification, the external appearance of the building had changed little and forms a good representative sample of typical outbuildings of the period.