Extant buildings

• Patagonia City Hall, Patagonia, Arizona. 1900
• Diego Valencia House, 432-436 South Convent Ave. 1907
• Reilly Funeral Home, 102 East Pennington Street, Tucson, Arizona. 1908
• Brick Row House 440-446 South Convent Ave. 1909
• Old Nogales City Hall and Fire Station, 136 Grand Avenue, Nogales, Arizona. 1914
• Odd Fellows Hall, 135 S. 6th Avenue, Tucson, Arizona. 1914 (credited to Jaastad, but more likely designed by Ely Blount while working in Jaastad's office)
• Manning-Johnson House, 455 W. Paseo Redondo, Tucson, AZ. 1916 http://www.pbase.com/bearpaw/image/30120824 Owned many years by Emery and Ann-Eve Johnson and now occupied by a law firm which has removed most of the residence's noted original grandeur and historical interior and exterior features.
• Safford Middle School, 200 East 13th Street, Tucson, Arizona 1918
• Dunbar Spring School, Tucson, Arizona, 1918
• Commercial Building, 41-47 South 6th Avenue. 1918
• Tucson Medical Center
  Tucson Medical Center
  Tucson Medical Center , licensed at 641 beds, is a locally governed nonprofit regional hospital in Tucson, Arizona. The medical center treats about 30,000 inpatients and 120,000 outpatients annually as well as around 6,000 infant births....
  
   Buildings: Erickson House, Arizona Patio Building, Education Building (to be demolished), 4 Court Buildings (to be demolished) 1926-1927
• Tucson High School and Vocational Educational Building, Lyman & Place/Henry Haastad, Associate 1924
• Saint Augustine Cathedral facade remodel 1929
• Grace Lutheran Church 1949

Demolished Buildings

• University Methodist Episcopal Church 1924 Demolished 1987

• El Conquistado Hotel 1928