Rhino Design Build is a San Antonio ADU and guest house contractor offering full-service design, permitting, and construction. Specializing in casitas, in-law suites, and backyard cottages, they bring 20+ years of experience to custom accessory dwelling units.

Rhino Design Build – ADU Contractor in San Antonio, TX

About Rhino Design Build

Rhino Design Build: Guest House and ADU Contractor in San Antonio

Rhino Design Build is a San Antonio-based design-build firm specializing in custom guest houses, casitas, and accessory dwelling units (ADUs). For homeowners considering adding a private living space to their property, the company offers a full-service approach that covers design, permitting, and construction under one roof.

A guest house — also commonly referred to as a mother-in-law suite, father-in-law suite, casita, or accessory dwelling unit (ADU) — can serve a range of practical purposes. Whether the goal is to house aging parents nearby, provide space for visiting family, or generate rental income through platforms like Airbnb or VRBO, a well-designed guest house adds both functionality and long-term value to a property.

Most guest houses are designed to function as fully independent living spaces, typically including a kitchen, living area, bedroom, bathroom, and utility space. The layout and finish level can be tailored to the homeowner's needs and budget, from a straightforward backyard cottage to a more refined casita with higher-end materials and finishes.

Planning and Site Considerations

Before construction begins, several site-specific factors need to be evaluated. Building setbacks, easements, rights-of-way, and flood plain designations all play a role in determining whether and where a guest house can be built on a given property. Rhino Design Build handles this evaluation process on behalf of their clients, working to ensure the project is compliant with local regulations before any work begins.

For properties governed by a Homeowners Association (HOA), exterior materials and design may need to match the main residence. Rhino Design Build coordinates with HOAs during the design phase to help ensure the new structure meets community standards while integrating well with the existing home.

When it comes to design, the team works around existing site features such as trees and landscaping, and can position the guest house to provide privacy and visual separation from the main home. Material options include stone, stucco, brick, wood, and modern composites, depending on the homeowner's preferences and any applicable HOA requirements.

Reasons San Antonio Homeowners Add a Guest House or ADU

There are several practical reasons homeowners in San Antonio choose to build a detached ADU or in-law suite on their property:

  1. Providing aging parents with a private, independent living space nearby
  2. Creating an in-law suite that keeps family close without sacrificing privacy
  3. Generating rental income through short-term or long-term leasing
  4. Offering adult children or young couples a temporary place to live
  5. Designing a flexible space that can serve as a home office, studio, or hobby room
  6. Increasing property value and buyer appeal with a professionally built detached ADU
  7. Supporting multi-generational living arrangements that may evolve over time
  8. Providing a comfortable, independent space for visiting guests or caregivers

Rhino Design Build brings over 20 years of design-build experience to each project. As a local, licensed, and insured general contractor, they manage the entire process from initial planning through final construction. Their work as an accessory dwelling unit builder and granny flat builder in San Antonio reflects a focus on custom layouts that align with both the homeowner's lifestyle and the architectural character of the existing property.

For San Antonio homeowners exploring the addition of a backyard cottage, casita, or garage conversion, Rhino Design Build offers a structured, single-point-of-contact process intended to simplify what can otherwise be a complex undertaking.

Services

Rhino Design Build performs the following services

  • Architecture & Design
  • Permit Specialist
  • Construction
  • Feasibility & Site Assessment
  • Finishing & Fit-out

Rhino Design Build Reviews

Laura Hayden

2025-07-01
"We worked with Rhino on our extensive remodel of our home in Terrell Heights and we would definitely recommend Rhino Design Build to anyone who is looking for a solid, locally-owned and operated company for their constructionremodeling project. Owner, Danny Garcia has truly assembled a Dream Team that listened to us, and anticipated and met our needs, each step of the way! Beginning with our first meetings with Janelle and Jon to discuss our needs and our preferences; then working closely with Janelle and Antonio on each phase of construction, the team at Rhino went above and beyond to make sure that we were happy with this large project that included the addition of a full bath, a half bath, a complete kitchen remodel, conversion of garage to mudroomlaundry room, and adding a walk-in closet and beautiful kitchenette to the existing casita in the back of our property. Throughout the project, and even after completion, Janelle was extremely responsive when we had questions or concerns. Danny, Jon, Janelle and Antonio were consistently able to hear what we wanted and they were even able to anticipate and offer solutions and ideas based on their experience that were a perfect fit for us and our project! Remodel projects can be very stressful on homeowners, and Danny, Janelle, Antonio and their team of professional tradesmen completely earned our trust with their ability to hear us, their responsiveness, and the impeccable quality of their work!"

Steve Berger

2025-05-02
"We engaged Rhino Design Build to create and build a carport at our Alamo Heights home. Janelle project manager and Antonio builder were easy to work with, efficient once we got going and in the end, the carport exceeded our expectations. We will definately engage Rhino again for any construction needs."

Elena Salon Studios

2025-04-11
"Dependable, trustworthy and excellent are the few words that come to mind with Rhino Design Build. Their top notch attention to detail sets them apart from any other construction company. They fully built out the salon of my dreams and currently only use them to maintain my building. Highly recommend and would trust no one else. Thank you!"

richard keith

2023-07-12
"Our experience with Danny and the Rhino Design Build team was excellent. The team was very responsive throughout the planning of our project, which was transforming a two car carport into a guest house for my mother-in-lawliterally a mother-in-law apartment. Rhino was enthusiastic about the project, where many other contractors supposedly specializing in small projects said it was too small to merit their attention. Rhino gave us fantastic customer service throughout the experience, listened carefully and were very responsive. I would absolutely recommend Rhino to others, and I would not hesitate to work with them on future projects. Great company with a strong quality minded team."

Derek Gisriel

2020-06-09
"This project started in December of 2018 with us interviewing four GCs with the goal of taking a 453 square foot existing structure casita and making it handicapped accessible and livable for my dad who is 100 VA disabled. Although, from the outside, it looks very simple to take a small existing structure shell and convert it to a livable space this project involved working through a ton of approvals which I will talk about below. The reason we chose Danny and Angel at Rhino was their professionalism and being able to handle the project fully from conception to completion. At the end they delivered a beautiful turn key casitamother in law suite that my dad can live in independently. The home is located in the historic Lavaca Neighborhood approximately 34 of a mile from the Alamo in downtown San Antonio. The original house was built in 1891 remodeled in early 2018 when the casita shell was built. It was sold to us with the idea that it could be left as is as a shed or easily be converted to a MIL suitecasita. The full scope of the project included building a wrap around treated wood deck with built in wheelchair ramp, new stamped concrete driveway, all plumbing, electrical, gas line, tankless hot water heater, water softener, finishing out inside. The project got started in January of 2019 with the VA paperwork since this was through a VA grant. Simultaneously the project was submitted to the historic district and to the City of San Antonio to get permit approvals. We faced many hurdles getting approved. Hurdle 1: The casita was built originally with no permits and on the property line. This required a variance to be approved by the city and panel of board members and all neighbors within 4 blocks adding a couple months. Hurdle 2: Since the casita was built with no permits the city required an engineers letter to gain certificate of occupancy. Long story short we had to lift it up and hire another company to add 16 additional piers to the already existing 16 piers that was supporting the casita. This added 1 month to the project. Hurdle 3: City of San Antonio historic approval, we went back and forth with the wrap around deck design. Angel joined me on multiple city meetings and provided all CAD designs, plans etc. Overall the work really started in January of 2020. Once we got those items out of the way and full historic approval the actual construction time period went pretty smooth, about 3 months. Danny and the team handled all the sub contractors efficiently and once the walls were closed up everything happened pretty quickly. All the subs were top notch and did great work. Overall we would highly recommend Danny, Angel, Antonio and the team at Rhino. I have included a lot of photos of before and after."

Specifics

Licensed Luxury Builds

Opening hours

Monday 8:00AM - 5:00PM
Tuesday 8:00AM - 5:00PM
Wednesday 8:00AM - 5:00PM
Thursday 8:00AM - 5:00PM
Friday 8:00AM - 5:00PM
Saturday -
Sunday -

Location

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