Waltham's listed office supply is concentrated at 303 Wyman Street, where all 8 available units sit. Wyman Street belongs to the suburban office belt along Route 128 that made Waltham a base for technology and life-science companies, and a tenant working from this page is looking at one building and 8 rooms — which puts timing ahead of negotiation, since every let removes an eighth of the available choice.
Unit sizes at the Waltham address run from 5 m² to 90 m², with a median of 38 m². Translated into desks, the median room takes five or six, the 5 m² minimum serves a single occupant or a registered address, and 90 m² is the ceiling: a Waltham tenant planning beyond roughly a dozen staff would be taking the largest of the 8 units from day one, with no bigger neighbour to move into later.
Suburban office parks like the Wyman Street site in Waltham are organised around driving, with commuter rail and bus routes serving the city instead of a metro network, so for a tenant at the 38 m² median the checklist is short and specific: parking allocation, hours of building access, and what the 8 listings include in the service charge. Settling those three points in Waltham before the first viewing usually saves a second trip.