- 6/6/2023: Alpha Tau Omega House
- 2/21/2023: Miller's Garage
- 1/4/2023: Great Fire of 1911 Historic District (Boundary Increase)
- 12/30/2022: St. Joseph's Academy and Convent/Catherine McAuley School (Boundary Increase, Additional Docuemntation)
- 12/13/2022: Biddeford-Saco Mills Historic District (Boundary Increase and Additional Documentation)
- 9/15/2022: Pilley House
- 9/15/2022: Orr's Island Meeting House
- 7/6/2022: Kennebunk Historic District (Additional Documentation)
- 6/20/2022: Maine Spinning Company Mill
- 6/14/2022: Dow Bridge
- 6/14/2022: David and Hadassah Wass House
- 4/12/2022: Morrill Homestead
- 4/8/2022: Mount Desert Island Hiking Trail System
- 3/23/2022: Marginal Way
- 1/11/2022: Richard Vines Monument
- 12/9/2021: Moonspring Hermitage
- 12/8/2021: Rendezvous Point Burying Ground
- 12/8/2021: Kezar Falls Circulating Library
- 9/10/2021: Dover-Foxcroft Commercial Historic District
- 9/10/2021: Greenwood Garden Playhouse
- 6/28/2021: Brunswick Square
- 6/28/2021: Young Surgical Building - Central Maine Sanatorium
- 3/23/2021: Phillips High School
- 3/23/2021: Lincoln Street Fire Station
- 12/24/2020: Herald Building
- 10/5/2020: Portland Waterfront Historic District Boundary Increase
- 10/5/2020: Blackjack (Friendship sloop)
- 10/5/2020: Vassalboro Mill
- 8/3/2020: Sagamore Village Historic District, Portland, Cumberland County
- 3/13/2020: West Auburn School, Auburn, Androscoggin County
- 3/13/2020: Dunn & Elliot Sail Loft, Thomaston, Knox County
- 3/13/2020: Surry Village School, Surry, Hancock County
- 3/13/2020: West Auburn School
- 1/6/2020: Thomas B. Reed School, Portland, Cumberland County, Maine
- 12/30/2019: Otisfield Town Pound, Otisfield, Oxford County, Maine
- 12/30/2019: Farwell Brothers Store, Thorndike, Waldo County, Maine
- 12/30/2019: Old Red Store, Tremont, Hancock County, Maine
- 9/30/2019: Camp Cinnamon, Norway, Oxford County, ME
- 9/30/2019: Mary E., Bath, Sagadahoc County, ME
- 9/30/2019: Sound Schoolhouse, Mount Desert, Hancock County, ME
- 9/30/2019: Greene Cottage, Harpswell, Cumberland County, ME
- 8/28/2019: Stage Island Monument, Biddeford, York County, Maine
- 5/31/2019: Merriconeag Grange #425, Harpswell, Cumberland County, Maine
- 5/31/2019: Walking Man Sign, Westbrook, Cumberland County, Maine
- 4/4/2019: Former Town Hall and Jail, Aroostook County, 1911 - 1968
- 3/28/2019: Singhi Double House, Knox County, 1891
- 3/28/2019: Mt. Merici Historic District, Kennebec County, 1954 - 1967
- 12/31/2018: Mt. Battie Tower, Camden, Knox County, 1921 - 1968
- 12/31/2018: Boarding House and Storehouse at Churchill Depot, Piscataquis County, ca. 1926 - 1938
- 10/4/2018: United Baptist Church, Penobscot County, 1892
- 10/4/2018: Tiffany Chapel, Sidney, Kennebec County, 1881 - 1911
- 10/4/2018: Lewiston Commercial Historic District, Androscoggin County, 1850 - 1968
- 6/20/2018: Memorial Chapel, York County, 1932 - 1933
- 6/20/2018: Union School, Oxford County, 1899 - 1952
- 6/20/2018: Stover, Capt. Johnson H. Jr., House, Cumberland County, c. 1807 - c. 1860
- 6/19/2018: Crescent Lodge, Cumberland County, 1931 - 1968
- 3/26/2018: Southgate Farm, Cumberland County, circa 1807, 1809 and circa 1910
- 3/26/2018: The Herbert, Kingfield, Franklin County, 1917-1968
- 3/22/2018: Rangeley Tavern, Franklin County, 1908 - 1968
- 1/2/2018: Hartford Fire Station, Augusta, Kennebec County, 1920-1967
- 10/12/2017: Tolman Cemetery, Rockland, Knox County, 1788 to 1823
- 10/5/2017: Fives Court, Lovell, Oxford County, 1924
- 9/28/2017: Dark Harbor Shop, Islesboro, Waldo County, 1904-1967
- 6/26/2017: Brick School, Paris, Oxford County, 1940-1967
- 6/26/2017: Whittier Field Athletic Complex, Brunswick, Cumberland County, 1896-1967
- 6/26/2017: Keen Hall, Freedom, Waldo County, 1927-1957
- 3/27/2017: North Monmouth Library, Monmouth, Kennebec County, 1927 - 1967.
- 3/27/2017: Canadian Pacific Railway Depot, Greenville Junction, Piscataquis County, 1889 - 1965
- 3/27/2017: Rumford Commercial Historic District, Rumford, Oxford County, 1892-1967.
- 3/27/2017: St. Joseph's Academy and Convent, Portland, Cumberland County, 1862 - 1966
- 1/27/2017: Freeman Barn, Wallagrass, Aroostook County, circa 1925 - 1966
- 1/17/2017: Water Street Historic District, Augusta, Kennebec County, 1835 - 1957
- 1/17/2017: Wallace / Haskell Homestead, Phippsburg, Sagadahoc County, 1906 - 1941
- 11/14/2016: Timber Point, Biddeford, York County, 1931-1954
- 9/27/2016: Waterville Main Street Historic District (Boundary Increase), Waterville, Kennebec County, Maine
- 9/27/2016: Robinhood Free Meetinghouse, Georgetown, Sagadahoc County, 1856
- 7/11/2016: Elizabeth Ann Seton Hospital, Waterville, Kennebec County, 1941-1942
- 7/11/2016: Schlotterbeck & Foss Building, Portland, Cumberland County, 1927-1966
- 7/11/2016: Eastport Historic District (Boundary Increase), Eastport, Washington County, 1882-1929
- 7/11/2016: John E. L. Huse Memorial School, Bath, Sagadahoc County, 1941-1942
- 6/7/2016: Little Mark Island Monument, Harpswell, Cumberland, 1827-1966
- 4/5/2016: Excelsior Grange # 5, Androscoggin County, c. 1914-1966
- 4/5/2016: Danville Junction Grange # 65, Androscoggin County, 1898-1966
- 4/5/2016: Starling Grange # 156 (former), Fayette, Kennebec, 1879-1966.
- 1/12/2016: Falmouth High School (former), Falmouth, Cumberland County, 1931-1965
- 1/12/2016: Cottage on King's row, Bristol (Round Pond) Lincoln County, 1853-1854
- 1/12/2016: Hussey-Littlefield Farm, Albion, Kennebec County, c. 1838-1905
- 1/12/2016: Marsh Stream Farm, Machiasport, Washington County, c. 1817-1965.
- 1/12/2016: Brunswick Commercial Historic District, Cumberland County, 1820-1961
- 11/19/2015: Gordon Fox Ranch, Lincoln, Penobscot County, 1924-1940
- 11/19/2015: Foster Barn at Winterberry Farm, Belgrade, Kennebec County, c. 1900-1910
- 11/19/2015: St. Andre's Parish, York, County, 1900-1965
- 11/19/2015: St. Andre's Parish, York, County, 1900-1965
- 11/19/2015: Edmund E. Goodwin House, Sanford, York County, 1899.
- 7/14/2015: Ella R. Hodgkins Intermediate School, Augusta, Kennebec County, 1958
- 7/14/2015: Great Chebeague Golf Club, Chebeague Island, Cumberland County, 1920-1964
- 7/14/2015: Norton's Corner School House, Willimantic, Piscataquis County, 1907-1965
- 4/1/2015: Lewiston Mills and Water Power System Historic District, Lewiston, Androscoggin County, 1850-1950
- 3/17/2015: Whitney Farm, Appleton, Knox County, c. 1825-1965
- 3/17/2015: Judson Record House, Livermore Falls, Androscoggin County, 1907-1965
- 12/25/2014: F. M. Jordan House, Auburn, Androscoggin County, 1881-1964
- 12/25/2014: Auburn Commercial Historic District, Auburn, Androscoggin County, 1855-1967
- 10/27/2014: Ogunquit Playhouse, Additional Documentation, Ogunquit, 1937 - 1959
- 10/27/2014: Sprucewold Lodge, 1927-1964
- 10/27/2014: Brewer High School, 1925/26
- 10/27/2014: Colonial Theatre, 1913-1964
- 10/27/2014: Winthrop Mills Historic District. 1882-1964
- 10/27/2014: Union Meeting House, 1848, c. 1910
- 7/7/2014: Holden Town Hall, Holden, Penobscot County, 1873- c. 1964
- 6/27/2014: Village School, Unity, 1898-1953
- 6/27/2014: Lovell Meeting House, Lovell, Oxford County, c. 1796-1964
- 6/27/2014: Dixmont Town House, Dixmont, Penobscot County, c. 1836-c. 1952
- 5/9/2014: Bond Street Historic District, Augusta, c. 1878-1946
- 5/9/2014: Foster Redington House, Waterville, 1883 - 1923
- 5/9/2014: Union Meeting House, Whiting, 1836, 1904
- 1/27/2014: Gooden Grant House, Isle au Haut, 1911-1961
- 1/27/2014: Nathan Clifford School, Portland
- 10/16/2013: William M. Shaw Residence, Greenville, c. 1890-1921
- 10/16/2013: Edgecliff, Southwest Harbor, 1886-1887, 1911
- 10/16/2013: John and Maria Webb House, Bridgton, c. 1842
- 10/16/2013: Jean Baptiste Daigle House, Fort Kent, c. 1839-1844, 1864
- 8/13/2013: Poland Spring Historic District, Poland, c. 1869-1963
- 6/25/2013: Clough Meeting House, Lewiston, 1846
- 6/25/2013: Clough Meeting House, Marsh School, Lewiston, 1846
- 6/25/2013: Saint Hyacinth, Westbrook, 1894 - 1963
- 6/25/2013: Lower Meeting House and East Bethel Cemetery, Bethel, c.1831, 1887, 1901
- 4/23/2013: Lincoln School, Acton, 1884 - 1957
- 4/23/2013: Marsh School, Prospect, c. 1880 - 1963
- 4/23/2013: Hancock Point School, Hancock, 1870 - 1940
- 4/16/2013: Saco Central Fire Station, Saco, 1938-1963
- 4/16/2013: Phi Gamma Delta House, Orono, 1925 Crowell and Lancaster, architects
- 4/8/2013: Gerald Hotel, Fairfield, 1900-1962
- 1/2/2013: Colonial Apartments, Bangor, 1919-1940
- 1/2/2013: Sewall Memorial Congregational Church, Robbinston, 1911
- 1/2/2013: Calais Observatory, Calais, 1857, 1866, 1895
- 1/2/2013: American Woolen Company Foxcroft Mill, Dover-Foxcroft, c. 1844-1953
- 1/2/2013: Waterville Main Street Historic District, Waterville, 1831 - 1961
- 10/31/2012: Androscoggin Yacht Club, Wayne, 1909-1962
- 10/31/2012: Wiscasset Historic District Additional Documentation, First Congregational Church, 1909.
- 10/31/2012: Lamb Block, Livermore Falls, 1895
- 10/31/2012: First Baptist Church of Great Pond, Great Pond, c. 1890-1895
- 10/3/2012: Togus VA Medical Center and National Cemetery, 1866-1960
- 8/1/2012: The Grand, Ellsworth, 1938-1962
- 7/30/2012: The Colonial Inn, Ogunquit, c.1890-1961
- 7/30/2012: Monson Community Church, Monson, 1845-1962
- 4/25/2012: Frank C. Frisbee Elementary School
- 4/24/2012: Waterboro Grange, No. 432, Waterboro, 1948-1962
- 4/24/2012: Montville Town House, Montville, 1827-1961
- 4/19/2012: The Mill at Freedom Falls, Freedom, 1834-1962
- 3/19/2012: Portland Waterfront Historic District Boundary Increase, c. 1790 - 1936, Portland.
- 3/19/2012: Children's Hospital, (Former), Portland, 1909-1948
- 1/27/2012: Berwick High School, (Former), Berwick, 1927/28 - 1960
- 1/27/2012: West Paris Lodge, # 15, I.O.O.F, West Paris, c. 1880 - 1961
- 1/4/2012: Main Street Historic District Boundary Increase, Rockland, 1848 - 1941
- 11/18/2011: Emery School, (Former), Biddeford, 1912-13
- 11/18/2011: Troy Union Meeting House, Troy, 1840
- 11/18/2011: Seven Star Grange, #73, Troy, 1876-1961
- 11/18/2011: Philip M. and Deborah H. Isaacson House, Lewiston, 1960
- 9/8/2011: Land's End Historic District
- 8/24/2011: Barn on Lot 8, Range G, Freeman Township, c. 1825-1899
- 8/24/2011: E. C. & M. I. Record Homestead, Bucksfield, 1844-1845
- 8/23/2011: Waterford Historic District Boundary Increase, Waterford, c. 1860
- 4/1/2011: Kennebunk High School, (Former), Kennebunk, 1921-22
- 12/15/2010: Bates Mill Historic District, Lewiston, 1850-1960
- 12/15/2010: Jonesboro Grange, #357, Jonesboro, 1908 - 1910
- 10/28/2010: Engine Company Number Nine Firehouse, Portland, Cumberland County
- 9/30/2010: Waterville High School (former), Waterville, Kennebec County
- 9/30/2010: Webster Grammar School, Auburn, Androscoggin County
- 4/27/2010: University of Maine Historic District Boundary Increase, Orono, Penobscot County
- 4/22/2010: George F. Clifford House, Cornish, York County
- 3/2/2010: South Berwick Village Historic District, 1774 - 1959
- 12/24/2009: Biddeford Main Street Historic District, Biddeford, 1846 - 1952
- 12/23/2009: Isaie and Scholastique Martin House, Madawaska, c. 1823 1- 1860
- 11/20/2009: Schooner Bagheera, Portland, 1923-1948
- 11/20/2009: Cape Arundel Golf Club, Kennebunkport. 1900-1927
- 11/20/2009: Sanford Mills Historic District, Sanford. 1882 - 1955
- 8/7/2009: Sea Change, Mount Desert (Northeast Harbor), 1945 - c. 1965; 2005
- 8/7/2009: Turner Cattle Pound, Turner. 1816 - 1918
- 8/5/2009: Bass Harbor Memorial Library, Tremont, 1922 - 1959
- 8/5/2009: Fiddler's Reach Fog Signal. Arrowsic, 1914 - 1959
- 8/5/2009: (Former) Maine Central Railroad Depot, Brooks. 1892 - 1960.
- 7/22/2009: Harbor Lane - Eden Street Historic District, Bar Harbor. 1879-1947
- 7/22/2009: The Elms, Houlton. 1872, 1906-1912.
- 2/13/2009: Donovan - Hussey Farms Historic District, Houlton, c. 1906 - 1958
- 2/12/2009: Bradford Peck House, Lewiston, 1893-1919
- 2/11/2009: Stearns Hill Farm Historic District. West Paris, c. 1818 - 1958
- 2/11/2009: Beecher H. Duncan Farm, Westfield, 1904-1950
- 2/4/2009: District #5 School, Alfred, 1872-1921
- 1/23/2009: Main Street - Frye Street Historic District, Lewiston, 1843 - 1956
- 1/22/2009: Kromberg Barn, Smithfield, c. 1820 - 1830, c. 1923/24
- 1/21/2009: Lagassey Farm, St. Agatha, 1892 - 1958
- 1/21/2009: Capt. John Plummer House, Addison, 1842 - 1865
- 12/31/2008: Bailey Island Library Hall, Harpswell, 1912 - 1958
- 12/31/2008: Kent Burying Ground, Fayette, 1880 - 1892
- 12/30/2008: Biddeford / Saco Mills Historic District, Biddeford and Saco, 1832-1958
- 12/30/2008: Winthrop Street Historic District Boundary Increase, Augusta
- 12/30/2008: Pythian Opera House, Boothbay Harbor, 1894-1958
- 12/30/2008: Forest Lodge, Upton, c. 1934 - 1955
- 10/16/2008: Surry Town Hall, Surry, 1844-1958
- 7/16/2008: Cliffwood Hall, Clifton, 1892 - 1958
- 7/16/2008: Harold Allan Schoolhouse, Clifton, 1863-1958
- 7/16/2008: Rivercroft Farm, Fryeburg, c. 1834-1958
- 1/24/2008: Rock Rest, Kittery, c. 1946-1957
- 1/24/2008: Louis B. Goodall, Memorial Library, Sanford, 1937-1957
- 1/24/2008: Enterprise Grange, No. 173 , Orrington, 1884 - 1957
- 1/24/2008: Corinth Town Hall and Corinthian Lodge # 59, I.O.O.F, Corinth, 1880 - 1957
- 1/24/2008: Deering Memorial United Methodist Church, South Paris, 1910-1911
- 1/24/2008: (Former) Hancock County Jail, Ellsworth, 1885/6 - 1957
- 11/7/2007: Farm House Historic District, Bar Harbor, 1923-1929
- 11/7/2007: Lisbon Falls High School, Lisbon, 1904-05
- 11/7/2007: The Common, Union , 1790-1951
- 10/30/2007: Brave Boat Harbor Farm, York, 1951 - c. 1965
- 10/16/2007: Soldiers Memorial Library, Hiram, 1915-1958
- 8/7/2007: Albany Town House, Albany Township, 1848-1957
- 8/7/2007: Greenwood Cattle Pound, Greenwood, 1836-1870
- 6/29/2007: Seawall Campground, Acadia National Park, Bar Harbor vicinity, 1935-1942
- 6/29/2007: Schoodic Peninsula Historic District, Acadia National Park, Winter Harbor vicinity, 1929-1935
- 6/29/2007: Blackwoods Campground Historic District, Acadia National Park, Bar Harbor vicinity, 1938-1948
- 6/27/2007: Roosevelt School, Hamlin, 1933
- 6/27/2007: Harmony Hall, Hampden, 1895-1957
- 6/27/2007: Weld Town Hall, Weld, 1922-1957
- 6/27/2007: Scarborough High School, Scarborough 1926-1957
- 5/8/2007: Windswept, Steuben, 1940-1955
- 5/8/2007: (Former) Machias Valley Grange #360, Machias, 1907-1957
- 5/8/2007: Dennis Johnson Lumber Company Mill, Waterboro, 1902-1957
- 5/8/2007: Lockwood Mill Historic District, Waterville, 1873-1957
- 5/8/2007: Old Gray House, Boothbay, Mid 18th Century to 1920
- 2/7/2007: LeRoy F. Pike Memorial Building, Cornish, 1925-1956
- 2/7/2007: Chaloner House, Lubec, 1818-1834
- 2/7/2007: Whitefield Union Hall, Whitefield, 1900-1956
- 2/7/2007: Chimney Farm, Nobleboro, 1931-1956
- 2/7/2007: Spruce Point Camps, Mt. Vernon, 1915-1940 (Also known as Bearnstow Camp)
- 2/7/2007: Pehr J. Jacobson House, New Sweden, c. 1871
- 1/9/2007: Sanford Town Hall (Former), Springvale, 1873-1956
- 1/9/2007: Mercer Union Meetinghouse, Mercer, 1829, 1857, 1884/5, 1917
- 1/9/2007: Camden Great Fire Historic District, Camden, 1892-1956
- 1/4/2007: John J. and Martha Sodergren Homestead, Stockholm, 1884
- 10/4/2006: Leonard Bond Chapman House, Additional Documentation Portland, 1866-68
- 10/4/2006: George Ulmer House, Lincolnville, 1799-1812
- 10/4/2006: Eighth Maine Regiment Memorial , Peaks Island, Portland, 1891-1956
- 10/4/2006: Oakfield Grange, # 414, Oakfield, 1906-1956
- 5/19/2006: Everett Chambers, Portland, 1902-1955
- 5/17/2006: William F. Grant House, Vassalboro, c. 1850
- 5/17/2006: Moody Mansion, East Pittston, 1890
- 2/28/2006: Kennebec Arsenal, Additional Documentation: Old Max, Augusta, 1905
- 2/28/2006: High Street Historic District (Additional Documentation: Bok Amphitheatre), Camden, 1929
- 2/3/2006: Abyssinian Meeting House, Portland, 1828 - 1916
- 12/29/2005: Colcord Farmstead, Benton, c. 1800 - 1954
- 12/28/2005: Joseph H. Underwood House, Fayette, 1837-1867
- 12/23/2005: Haystack Mountain School of Crafts, Deer Isle, 1959-2004
- 12/21/2005: Parson's Bend, Alna, c. 1800
- 12/21/2005: Lt. Robert Andrews House, South Bridgton, 1780-1845
- 12/21/2005: Timothy and Jane Williams House, Rockland, 1839-1880
- 12/21/2005: Charlotte Pound, Charlotte, 1872-1920
- 10/20/2005: Battery Steele, Peaks Island, Portland, 1942 - 1948
- 10/5/2005: Garland Farm, Bar Harbor, 1955
- 10/16/1991: Wing Family Cemetery, Wayne, 1867
- 11/18/1974: Portland Stove Foundry, Additional Documentation (Removal), Portland