Connecticut - Role: Building
| Bradley-Hubbell House |
| Bradley, Icabod, House |
| Bradley, Timothy, House |
| Bradley-Wheeler House |
| Braman Camp |
| Branchville Railroad Tenement |
| Branford House |
| Brayton Grist Mill |
| Breuer, Marcel, House II |
| Brewer, Selden, House |
| Brewster Homestead |
| Bridgeport City Hall |
| Brigham's Tavern |
| Bristol Girls' Club |
| Bristol High School |
| Broad Street School |
| Bronson, Aaron, House |
| Bronson, Josiah, House |
| Brown Tavern |
| Bryan, Roderick, House |
| Buckingham House |
| Buckingham, William A., House |
| Building at 136-138 Collins Street |
| Building at 142 Collins Street |
| Building at 83-85 Sigourney Street |
| Bulkeley School |
| Bull, Amos, House |
| Bull, Capt. William, Tavern |
| Bullet Hill School |
| Burgis II, Thomas, House |
| Burnham, Edward L., Farm |
| Burnham Tavern |
| Burrall-Belden House |
| Burritt Hotel |
| Burwell, Ernest R., House |
| Bush-Holley House |
| Bushnell, Benjamin, Farm |
| Bushnell-Dickinson House |
| Bushnell, Elisha, House |
| Butler, James, House |
| Butler-McCook Homestead |
| Butler, Roger, House |
| Buttolph-Williams House |
| Byram School |
| Cady-Copp House |
| Cady, John, House |
| Caleb Pratt House |
| Camp, Moses, House |
| Canty, Marietta, House |
| Capewell Horse Nail Company |
| Capron-Phillips House |
| Carpenter House |
| Carpenter, Joseph, Silversmith Shop |
| Carroll Building |
| Carter, Hubbell, House |
| Case, Benomi, House |
| Cassidy House |
| Castle, Dr. Andrew, House |
| Catlin, J. Howard, House |
| Centerbrook Congregational Church |
| Chaffee, Hezekiah, House |
| Champion, Henry, House |
| Chandler, Capt. Seth, House |
| Chapin, Philip, House |
| Chapman, David, Farmstead |
| Chapman, Taylor, House |
| Charlton, Capt. Richard, House |
| Charter Oak Bank Building |
| Charter Oak Firehouse |
| Chatfield Farmstead |
| Cheney Building |
| Chevry Lomday Mishnayes Synagogue |
| Children's Village of the Hartford Orphan Asylum |
| Childs, Starling, Camp |
| Chittenden, Russell Henry, House |
| Chivvis, Arthur and Lyn, House |
| Christ Church |
| Christ Church New Haven |
| Christ Episcopal Church and Tashua Burial Ground |
| Church Farm |
| Church of the Good Shepherd and Parish House |
| Church of the Holy Name |
| Church of the Holy Trinity and Rectory |
| Clark, Andrew, House |
| Clark, Avery, House |
| Clark Brothers Factory No. 1 |
| Clark Brothers Factory No. 2 |
| Clark, Capt. John, House |
| Clark Homestead |
| Coffing, John C., House |
| Cogswell, Edward, House |
| Coite-Hubbard House |
| Colebrook Store |
| Colt, James B., House |
| Colton, Benjamin, House |
| Commercial Trust Company Building |
| Commercial Trust Company Building |
| Commodore Hull School |
| Comstock, Abijah, House |
| Comstock-Cheney Hall |
Data from United States Park Service and Wikidata
