So what makes Hadleigh unique? The core of Hadleigh is a long ribbon of medieval development; only the area around the parish church to the west of the High St represents any departure from that. This Medieval core is formed of two streets: the wide High St and its southern continuation, the narrow Benton Street. Like most other towns and villages in Suffolk there are a plethora of Medieval half-timbered houses - though no concerted attempt has been made to turn them back to their medieval states, as was done elsewhere. I think Hadleigh is too work-a-day place for that. Nothing too self conscious here, these houses retain their post medieval façades and additions - pargetting, sash windows and the like. That's why I say the town has a feel of improvisation to it. In addition there red brick, and later, stock brick houses (a good development of the latter between the High St and the parish church). In short everything is pretty harmonious. The nearest Hadleigh gets to monumental, (I suppose it just about qualifies), is the Deanery Tower beside the west end of the church, a late medieval brick tower - the rest of the original structure has disappeared.
In addition, and this is a small but important detail, there are good independent retailers too; bookshop, deli, butchers, that sort of thing.