Building a room for a househack

[Alejandro B Yoon]

Hello everyone,

I have a successful househack in Houston I acquired in May with 4 tenants. *3 renting rooms + a buddy of mine living with me in the master. I've injected 10k cash into the house to update everything (the prior owner rented it out for a decade and had a lot of deferred maintenance and tenant damage). Now that everything is to my liking and clean; I am looking to build a wall in the downstairs living area to create another room. The downstairs living area is huge and would still easily be able to have a dining area with the additional wall.

I currently am paying $300-$500 a month to live in the home ($100 out of pocket for PITI with the rest being utilities) and want to build this wall to live for free and possibly be slightly cashflow positive. Of my renovations I have heavily DIY'd and hired multiple Home Depot day laborers to install countertops, flooring, doors, etc.

With building a wall I am a bit more hesitant to use a day laborer or do it myself since I want the finished product to be structurally sound. I also have 0 idea what the cost of building a wall is since google doesn't have much information on the topic + it's a more uncommon renovation.

What type of contractor should I try to contact? And what should I be expecting to pay for the job? What was your experience with building a wall?

Thank you in advance!

[Alejandro B Yoon]

UPDATE: I ended up paying $1000 for a guy to frame, insulate, texture, and install matching baseboard on the new wall. I opted to paint it myself. He was the lowest quote and did a great job. I had quotes ranging as high as $2200 for the 11' x 8' wall. I already have a tenant who will be moving into the room only a week after the room has been completed for $550 a month. 

It will take me less than two months to recoup the cost of the improvement, but will generate an extra $6,600 in yearly revenue. Providing me with a 660% cash on cash return.