AD 1891 is carved above first-floor windows at both ends of the College Street facade of this freshman dormitory, originally built with an entrance from the street. Victorian English Collegiate in style, this building of Longmeadow freestone has been altered and renovated several times. The first floor, converted in 1938 for the Office of Admissions and the Freshman Year, was restored to dormitory accommodations in 1962 and 1964. a major renovation was completed in 1976, funded by a gift from John Hay Whitney, Yale BA 1926. Herbert S. Newman was the architect for this work. Located on 330 College St. Old Campus, New Haven, Connecticut.

Welch Hall is currently occupied by Davenport College Freshmen. It is often considered one of the best housing for freshmen as it has a higher single to double ratio, large common rooms, the fabled Princess Suites (two story suites located on the fourth and fifth floors occupied only by females, which have a higher restroom to person ratio as well as sky lights and amazing views of Yale and New Haven), emergency exits which are not alarmed (allowing for easier access from one entry way to another without having to go through the basement or outside), the ten and twelve pack on the first floor (10 and 12 guys occupy these rooms), and larger rooms in general. Although they are well sought after, there are many problems that plague Welch Hall including heating issues (some have complained about the lack of control over changing the heat, specifically to a lower temperature, generally it is too hot in the rooms), easily damaged walls and roofs during heavy rain storms, and squirrels who come into open windows and eat food left out in common rooms and rooms.