Today their firm, Gottfried & Somberg, has grown to 20 employees across three adjacent offices on Hebron Avenue in Glastonbury, and more than $900 million in assets under management. Next year, they’ll have a brand new, bigger home office. The two owners won local approval last month to demolish those three buildings — all former residential homes that are located in a business zone — and construct a 20,000-square-foot, three-story office with an estimated price tag of up to $6 million, Somberg and Gottfried said in an interview. The firm acquired the third Hebron Avenue property in mid-2018, which set the table for the long-envisioned project to get underway. Bulldozers will be on-site within the next few months, and the firm expects to debut its new home office in the spring of 2021. During construction, employees will work from temporary space on Eastern Boulevard.