We are just about to pour this foundation for a room addition in Terrell Heights. This client had an architect plan the attached room addition. The initial planning took approximately 18 months, so if you are looking to add square footage to your home or planning a major home renovation, be prepared to be patient during the design stage. Not all projects take that long to plan and design, but some obviously do. Rhino Design Build offers design build services which means we can assist you with design and construction of your room addition.
Our average detached guest house is approximately 426 square feet and costs $96,000 to build. This includes design, permits, labor, materials, etc. There are many factors that determine the cost of a detached guest house or casita. We do a thorough assessment of how we will tie into the existing sewer line, how we will get power to the guest house, determine the final height of the foundation, etc.