At the end of the episode, in response to her question, Jay tells Kim that the house was built around "something like 1955". The next shot shows the house's foundation, which is made of rusticated concrete blocks (also known as rock face blocks), which went out of style by the late 1930s.
At about 11:19 you can see Patrick John Flueger's (Ruzek) arm band tattoos on his right forearm which they have attempted to cover with make-up.