In October 2009 AS Ltd conducted an historic building appraisal at 23 Baldock Street, Ware. The appraisal was undertaken in order to support and inform a planning application to convert the property to residential and office use. Technical analysis suggests that the building was originally constructed in the 16th century, although by 1654 was in use as an inn known as the Black Swan. Heavy and repeated modification have obscured much of the original layout and removed most historic features, though the original disposition is ascertainable. This indicates a central room of higher status, flanked by a heated room to the north, and a small unheated room to the south, which probably gave access to the carriageway. The pattern of bay divisions extends through the building. The rear range may be of slightly later date, and of lower status. Most surviving decorative features date from the 18th century when the building was evidently remodelled. Elements remaining from this period include the front door, several of the sash windows and various internal cupboard doors.