A Douglas County requirement and an Adams County requirement never share a search
Six county governments sit inside this metro, and the person searching in each one uses different words, different sizes and a different reason for looking.
Denver is a consolidated city and county. Its neighbors are not. Jefferson, Arapahoe, Adams, Douglas and Boulder counties each run their own approvals process, and practice varies enough across a modest drive that it is worth confirming anything specific with the local building department before you put it in writing.
Search behavior follows those lines. Somebody hunting flex space in Thornton types nothing like somebody pricing a retail pad in Highlands Ranch. A single page called Denver commercial real estate serves neither of them, and it competes with every portal at once.
Build the geography out as real pages with real evidence: what trades there, who the typical occupier is, what the approvals conversation tends to involve, and which of your brokers actually works that ground. Pages that only swap a place name get treated as what they are.
Start with the two or three counties where you already close business. Rankings follow repetition, links and genuine coverage, and you have none of those for a submarket you have never worked.