Clifford Annex

{{Use mdy dates|date=August 2023}}

{{Infobox NRHP | name = Clifford Annex

| nrhp_type =

| image =

| caption =

| location= 407-411 DeMers Ave., Grand Forks, North Dakota

| coordinates =

| locmapin = North Dakota#USA

| built = 1906

| architect =

| architecture = Early Commercial, Vernacular, and Other

| delisted = September 23, 2004

| area = less than {{convert|1|acre}}

| mpsub = Downtown Grand Forks MRA

| refnum = 82001319{{NRISref|version=2010a}}

}}

Clifford Annex was a building in Grand Forks, North Dakota. It was listed on the U.S. National Register of Historic Places, but was destroyed in the 1997 Red River flood, and was delisted in 2004.{{cite web|url=http://www.nps.gov/history/nr/listings/20041015.htm |title=Weekly Announcements October 15, 2004|date=October 15, 2004 |publisher=National Park Service}}

Along with Wright Block, the Telephone Co. Building, the Dinnie Block, and Golden Square, the Clifford Annex was one of many "commercial vernacular brick buildings with classical revival details" that were built during a major building boom, with high quality brickwork.{{cite web|url={{NRHP url|id=64000472}}

|title=National Register of Historic Places: Downtown Grand Forks MRA |author=Norene Roberts and Joe Roberts |date=November 30, 1981 |publisher=National Park Service}}

The Clifford Annex was built in 1906. It included Early Commercial, vernacular, and other architecture.