A campus map can be found on https://www.u-tokyo.ac.jp/content/400020145.pdf
My office is Room 340 in Engineering Building 6, which is No 79 on the campus map.
Accommodations
Sanjo conference hall Tatsuokamon annex
https://www.u-tokyo.ac.jp/adm/housing-office/en/housing/shukusha/sanjotatsuoka.htmlÂ
No 17 on the campus map
The Lawson on the first floor of the building is a marker.
Forest Hongo
One block west of the Main Gate (between buildings 35 and 84 on the campus map)