Hayakawa residence was reconstructed immediately after Nobi earthquake in 1891.13 floor plans were found in Hayakawa residence. Transition process of the floor planning of Hayakawa residence main building and annex was presented in 1983 by Dr. Nakamura, He drew comparisons among 5 drawings (historical material No41, 43, 45, 46, 49). However, we newly discovered 8 drawings (historical material No. 38, 39, 40, 42, 44, 47, 48, 53) and compared 13 drawings, which led to different opinions, and described in following text.
The planning took place within 3 year (1891-1894) after Nobi earthquake in 1891. Especially, It is worthy of note that the 7 plans were considered in only 3 months after the devastating earthquake. The building became larger gradually in the all directions. 3 kinds of size were confirmed from the historical materials (historical material No. 38-53).
The followings are found from 13 floor plans.
1) Historical material 39: an initial plan, because there are many notices about the new house floor planning. Historical material 40: a rough draft of the historical material No. 39.
2) Historical material 41: larger than historical material 39 and 40, written about length of the north-south direction of the house. There are many notices on the each room.
3) New ideas can be found from historical material No. 42.: (1) Historical material 42 is larger than Historical material 41, written about the length of the east-west direction of the house. (2) Though there was the bathroom at the east side of Niwa, they moved it at the east side of the building, and made the family entrance in the of the bathroom. (3) Though there was an alcove (Tokonoma) at the entrance room, they stopped making alcove in the room. (4) Many proposals were submitted about the style of the main guest room. The Buffering room called “Sayanoma” was made at the west side of the main building, so that the hallway did not become narrow, when they put Shoin to the main room. We can recognize a lot of investigations from the notice of the plans of historical material No. 41. (5) As the building became larger, the room of 2 jo changed into the tea room of 6 jo and Daime, because the building became bigger.
4) Historical material No. 47: the partial plan about the kitchen and bathroom at the north-east side of the house.
5) Historical material No. 43: the sizes of the adjacent rooms were rectified based on the physiognomy of a house of historical material No. 42.
6) Historical material No. 44: At the beginning of construction of the main building, the board drawing (Itazu) was created .This shows us the fixed planning of the main building. We can also recognize the board drawing from the picture (historical material No. 84), and the existing building.
6) As the planning of main building approached to a final stage within 1 year, the planning of the annex started and the connection parts with the main building were alterd, the washing place and closet were ceased.
7) Historical material 45, 46, 48, 49, 53: About the planning of the annex, Historical material No. 45 shows the annex plan. Historical material No. 46 shows only the size of the annex. Historical material No. 49 and No. 53 shows the detailed plans of the annex.
8) Historical material No. 38 is almost the same as the existing arrangement of the Hayakawa residence.
