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Premium Accessory Dwelling Units

ADU Construction & Design Services in San Antonio

Expand Your Property with a Custom Accessory Dwelling Unit built with 35+ years of trusted contracting experience.

Accessory Dwelling Units: The Smart Property Investment

An Accessory Dwelling Unit (ADU) is one of the smartest investments you can make in your property. Whether you need extra space for family, a dedicated home office, a rental unit for additional income, or a private guest suite, JRM Construction Landscaping Design specializes in designing and building custom ADUs that seamlessly integrate with your existing property.

With over 35 years of construction and design experience, owner Robert Thompson brings the expertise to navigate local regulations, optimize your space, and deliver a beautifully crafted structure that enhances both your lifestyle and property value.

As a fully licensed, insured, and bonded contractor, we manage every aspect of your ADU project—from initial design and permitting to construction and final landscaping—ensuring a smooth, stress-free experience from start to finish.

Custom detached ADU structure
Detached Guest House Suite

What is an ADU?

An Accessory Dwelling Unit (ADU) is a secondary housing unit on a single-family residential lot. Also known as granny flats, in-law suites, backyard cottages, or guest houses, ADUs are fully functional living spaces with their own kitchen, bathroom, sleeping area, and private entrance.

ADU Formats We Build:
Detached Cottage Attached Addition Garage Conversion Above Garage
Specialized Scope

Our Comprehensive ADU Services

We handle every aspect of design, permitting, utility tie-ins, and buildout under Robert's direct oversight.

Custom ADU Design & Construction

  • Detached backyard cottages and guest houses
  • Attached in-law suites and home additions
  • Garage conversions and above-garage apartments
  • Custom floor plans tailored to your specific needs

Full-Service Project Management

  • Site evaluation and zoning feasibility assessment
  • Custom architectural design and space planning
  • City permit coordination and local code compliance
  • Complete structural construction and project oversight
  • Final landscaping and site integration

ADU Features & Finishes

  • Full kitchens with modern, energy-efficient appliances
  • Bathrooms with premium tile work and fixtures
  • High-performance windows and climate insulation
  • Smart home technology and lighting integration
  • Private entrances and custom outdoor living areas
  • Tailored interior trims, flooring, and cabinetry

Property & Utility Integration

  • Seamless connection to existing water, sewer, and electric utilities
  • Hardscape pathways and softscape landscaping integration
  • Privacy fencing and green buffer landscape design
  • Dedicated parking solutions and private access layouts
Core Configurations

ADU Types We Build

Explore the four primary structures that can transform your San Antonio backyard footprint.

01

Detached ADUs

A standalone structure in your backyard, offering complete privacy and independence.

Perfect for rental units or guest houses
Full kitchen, bathroom, and living/sleeping areas
Private entrance and outdoor space options
Can include a covered patio or small yard
02

Attached ADUs

An addition connected to your primary home, sharing one wall while maintaining separate entrances.

Ideal for in-law suites or multi-generational living
Integrated utilities for structural efficiency
Shared or separate outdoor garden spaces
Seamless architectural integration with main house
03

Garage Conversions

Transforming an existing garage into a fully functional and insulated living space.

Cost-effective use of existing foundations/walls
Can maintain some space for garage storage
Complete conversion with insulation, windows, and ventilation
Modern, comfortable, and fully integrated living space
04

Above-Garage ADUs

Building a living space above your existing garage to maximize vertical footprint.

Maximizes your property's ground-floor footprint
Offers excellent privacy and distinct separation
Can include a private balcony, deck, or staircase
Highly efficient use of vertical yard space
Workflow Sequence

The JRM ADU Process: Built with Precision

We manage the entire lifecycle from blueprinting and zoning verification to framing and landscaping layout.

Feasibility study01

Property Assessment

We begin with a free, on-site consultation to evaluate your property, discuss zoning requirements, and assess the feasibility of your ADU project.

Design phase02

Custom Design & Planning

Robert works directly with you to create a floor plan that meets your needs and complements the architectural style of your existing home.

Building codes03

Permitting & Compliance

We navigate the complex permitting process, ensuring your ADU meets all local zoning, building, energy, and utility requirements.

Detailed quote04

Proposal & Timeline

You receive a detailed, itemized quote and a realistic construction timeline with no hidden costs or surprises.

Ground up05

Expert Construction

Our skilled builders execute every phase of construction with precision, from foundation and framing to interior finishes and exterior landscaping.

Ready to move in06

Final Walkthrough & Handover

We conduct a thorough final inspection with you, ensuring every detail is perfect before handing over the keys to your new space.

Value Add

Why Build an ADU?

Additional Income

Generate monthly rental income from long-term or short-term stays.

Multi-Generational

Provide comfortable, private space for aging parents or adult children.

Private Home Office

Create a dedicated, quiet workspace detached from the primary living area.

Boost Property Value

Increase resale value and add flexible living square footage to the lot.

JRM Construction framing and jobsite verification
Active Framing & Jobsite Oversight
Financial Planning

Financing Your ADU

ADUs are a significant investment that can provide substantial financial returns. We offer personalized guidance and insights on:

  • Construction loans and lending programs
  • Estimated property appreciation profiles
  • San Antonio rental income potential

* We're happy to discuss specific financing and ROI calculations during your free consultation.

Why Choose JRM

Why Choose JRM for Your ADU?

Our 35-year legacy of quality craftsmanship and owner-led construction gives you complete peace of mind.

35 Years of Construction Expertise

Deep knowledge of structural building, permitting, and code compliance.

Design-Build Capability

One trusted company handles everything from initial design to final landscaping.

Licensed, Insured & Bonded

Total protection for you, your family, and your property investment.

Local San Antonio Knowledge

Complete understanding of San Antonio zoning laws and ADU regulations.

Seamless Property Integration

We design your ADU to complement your existing home and landscape.

Owner-Led Oversight

Robert Thompson is personally involved in every project's quality check.

Quality Craftsmanship

Meticulous attention to detail and premium materials used throughout.

JRM Custom finished interiors
Modern Interiors

Premium custom interior finishes and layout designs built to last.

JRM LogoSchedule Your Site Consultation

Ready to Design & Build Your ADU in San Antonio?

An Accessory Dwelling Unit is a versatile, highly valuable addition to your property. Contact us today to discuss floor plans, budget options, and zoning requirements with Robert Thompson.

Proudly designing & building custom ADUs in San Antonio, New Braunfels, Boerne, Canyon Lake, and surrounding 80-mile areas.

Licensed · Insured · BondedBuilding Trust, One Project at a Time, Since 1989