Originally Answered: Warehouse / Office Space Houston - What would a 20,000 ft warehouse with an office space approximately cost?
It varies based on improvements you want and the "Class" of building you start with.
Do you need truck high dock doors for loading trucks out of your warehouse? Or can you get by with ground level and your own forklift? If so that is considered Industrial space. You already said you don't need retail. Retail is the most expensive followed by professional space (doctor, dentist etc). Regular warehouse space will not be truck high.
Base price also fluctuates based on location and age and condition of the building.
Then prices change based on improvements and the length of the lease cuz they normally recover improvements over the lease term. So if you are looking at say the end 20,000 ft of a 50,000 or 100,000 sq ft unimproved space, typically they do a build out for you. If you want 3 a/c units, lighting, 4000 sqft of drop celling and carpet, a pair of restrooms, a kitchen, walled office or just open for cubicles they get contractors to bid and spread the cost of the lease term, normally 3-7 years. They will be pretty helpful and build it out for you cuz it belongs to them after. (Usually they don't want anything weird or you adding a paint room, radio active chemical storage etc later.)
There is all kinds of gotchas along the way, like people with disabilities rules so you'll have to pay for a water fountain a certain height, the bathrooms a certain way, the kitchen sink drain pipe protection and maybe a ramp to your front door even though you don't have any disabled employees and don't plan to have customers come to the door. You gotta pay all kinds of city inspectors and permits for your burglar alarm and sign to fire Marshall's codes, exit signs and fire extinguishers. They usually handle taking all the construction inspectors to strip clubs. But I was expecting Tony Soprano to show up next.
You can drive around the area and look for appropriate building types and locations and call and ask about rates. You might want to meet with a few. Then consider a commercial real estate agent to help look and or a realestate lawyer to review agreement and put stuff in to protect you, but both will cost you money. (They will add the agent commission to your rent and since he is getting paid by them when it gets down to it who's side is he on?)
During planning its a back and forth negotiation. There are normally penalties for changing the plans after you sign off and higher ones after construction starts and higher ones after they finish even if its their fault like you have 2 urinals on walls in a corner and can't pee in both at the same time cuz there is no place to stand.
If you have a little money, I would try to buy a building and have your company rent it or part of it from you or another company you form. See a CPA for advice. Don't know your personal situation but there can be some pretty good tax reasons for doing this and rates are low. You should probably be talking to someone about your current business awarding college scholarships every year and your kid winning them.