A Roman ruin on the Coun­ty Hall site, the Town House has two prin­ci­pal ranges of rooms. The South Range has flint and stone walls on the grass-cov­­ered site. The West Range was mosa­ic floored. This range has been re-exca­­vat­ed and cov­ered with a steel and glass build­ing with a stone tiled roof perched on the orig­i­nal foun­da­tions.