CBUMC has a unique historical connection to three other churches in the Town of Colonial Beach. The original 1882 survey of Colonial Beach noted no organized church within town limits. Between 1882 and 1887, a group of ladies from various religious denominations formed a group known as the Ladies’ Colonial Beach Union Chapel Association. A deed to the current property was conveyed to the trustees of the association November 14, 1887, and a white frame structure was built on the site. This chapel had twin towers, one of which contained a bell that had been cast in Washington DC in 1885. The same bell is part of the sign in front of the church today.
Sunday services were conducted in the chapel on successive weeks by the Baptists, Episcopalians, Methodists, and Roman Catholics. This continued until the other denominations built their own churches. A court order issued in 1928 stated that since the property had been used exclusively by the Colonial Beach Methodist Episcopal Church South for the past fifteen years, other denominations had no claim to the property. It is at this time the church became known as CBUMC.