ADU

Models

While our three 3D models showcase the potential of an ADU, they are only the starting point for your vision. Every project we build is a fully custom creation, engineered specifically for your unique property and tailored to your family's needs. We use these designs to spark your imagination, but the final blueprint is built entirely around you.

Mason Master Builders - Build your dream ADU now

1BED 1BATH

500 sq ft

2BED 2BATH

900 sq ft

3BED 2BATH

1200 sq ft

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thousands of projects

Build More From the Land You Already Own

Custom ADU design and construction by Mason Master Builders.

We help homeowners across Southern California transform their property into additional living space, rental income, and long term value through thoughtfully designed Accessory Dwelling Units.

  • Design
  • Permits
  • Engineering
  • Construction

All managed by one experienced team.

Custom ADU design and construction by Mason Master Builders

Why Homeowners Are
Building ADUs

Southern California homeowners are discovering that the land they already own holds more potential than they realized.

An Accessory Dwelling Unit, commonly known as an ADU, allows property owners to create a separate living space on their property while increasing property value and flexibility.

Many families build ADUs to create housing for parents, adult children, or guests. Others see the opportunity to generate rental income while making better use of their property.

A well designed ADU can provide

  • Additional living space for family
  • Rental income opportunities
  • Higher property value
  • Flexible housing options
  • A private guest house or home office

With California encouraging ADU development, more homeowners are choosing to unlock the potential of their property.

Why Mason Master Builders

Experienced Builders Who
Understand the Entire Process

Building an ADU requires more than construction. It requires planning, engineering, permitting, and coordination between multiple professionals.
Mason Master Builders guides homeowners through every phase of the process.
From the first property evaluation to the final inspection, our team manages the project with clear communication and attention to detail.
Our goal is simple.
Build the project correctly, efficiently, and with the quality that homeowners expect.

Licensed and
Experienced Builders

Mason Master Builders operates under a California General Contractor License and follows all California building codes and Southern California permitting requirements.

Our team manages every stage of the project including

01

Architectural
planning

02

Structural
engineering

03

Permitting
and city
approvals

04

Construction

05

Final
inspections

This integrated approach allows projects to move forward smoothly while maintaining high construction standards.

Types of ADUs We Build

Every property is unique, and different types of ADUs may be appropriate depending on the layout of your lot.

01Detached ADU

A detached ADU is a separate structure built on the property but independent from the main home.
This option offers maximum privacy and is commonly used as a rental unit or guest house.

02Attached ADU

A detached ADU is a separate structure built on the property but independent from the main home.
This option offers maximum privacy and is commonly used as a rental unit or guest house.

03Garage Conversion ADU

A detached ADU is a separate structure built on the property but independent from the main home.
This option offers maximum privacy and is commonly used as a rental unit or guest house.

04Junior ADU

A detached ADU is a separate structure built on the property but independent from the main home.
This option offers maximum privacy and is commonly used as a rental unit or guest house.

Can My
Property
Qualify for an
ADU

Many properties throughout Los Angeles qualify for ADU construction under California state laws.

Several factors are evaluated when determining ADU eligibility including

  • Lot size
  • Property zoning
  • Setback requirements
  • Utility access
  • Existing structures on the property

Mason Master Builders can review your property and help determine what type of ADU may be possible.

Our ADU Building Process

Building an ADU involves multiple phases. Our structured process helps ensure projects move forward smoothly.

Property Evaluation

We begin by reviewing your property layout, zoning requirements, and potential ADU options.

Design and Planning

Architectural plans are developed to maximize space, functionality, and compliance with city requirements.

Engineering and Permits

Our team coordinates structural engineering and submits plans to the city for approval.

Construction

Once permits are approved, construction begins with experienced builders and project management overseeing every phase.

Final Inspections and Completion

After inspections are completed and approved, the ADU is ready for occupancy.

Projects

Recent Construction Experience

High quality construction starts with attention to detail and experienced builders.

Mason Master Builders has completed numerous residential construction projects throughout  Southern California including roofing systems, structural improvements, solar installations, and residential upgrades.

  • Our approach focuses on
  • Clear project planning
  • Professional construction management
  • Quality materials and workmanship

Each project is built with the goal of creating a structure that performs well and stands the test of time.

Serving
Southern
California
Homeowners

Mason Master Builders proudly serves homeowners throughout Southern California and surrounding communities.

Our team understands the permitting requirements, building codes, and zoning regulations that apply throughout the region.

This local experience allows us to guide homeowners through the ADU process efficiently and professionally.

Start Planning Your ADU

If you are considering building an ADU, the first step is understanding what your property allows and what options are available.

Our team would be happy to review your property and discuss your goals.

Request a consultation today and begin planning your ADU project with Mason Master Builders.

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thousands of projects

20+ Years of LA
Construction Excellence

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A garage conversion or ADU construction is a big investment with lots of important decisions to make along the way. With thousands of projects under our work belt, we have the professional expertise and know-how to make sure your project will be finished on time, within budget, and built to perfection.

understand the latest trends

Personalized Service from Trusted Professionals

We understand the latest trends in garage conversions and ADU projects, as well as how to incorporate them into your space in a stunning, versatile, and functional way. With an endless array of materials, colors, hardware, appliances, and fixtures to choose from, our team of expert ADU builders will work with you one-on-one to bring your dreams to life.

Conversions & ADUs

Your Full-Service Partners for
Garage Conversions & ADUs

c1

Planning & Design

Bring your vision to life with customized start-to-finish solutions designed to maximize your space.

c2

Floorplan

Optimize functionality and flow with expertly designed layouts that suit your needs.

c3

First & Second Story Additions

Expand your living space with another floor for your office, studio, rental unit, or bedrooms.

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Blueprints

Rely on precise, professional plans to guide every detail of your project from concept through construction.

c5

Space Reconfiguration

Transform your home to evolve with your needs for a more comfortable and versatile living environment.

The guessing game is over.

So, what’ll it cost you?

Get a detailed price estimate for your garage conversion or ADU.

SOCIAL PROOFING

Garage Conversions & ADUs FAQ

What is a garage conversion or ADU?

A garage conversion or Accessory Dwelling Unit (ADU) is the process of transforming a garage into a livable space. This could include converting it into a guest house, rental unit, home office, or extra living area. ADUs often feature their own kitchen, bathroom, and separate entrance.

How much does it cost to convert a garage into an ADU?

A garage conversion or Accessory Dwelling Unit (ADU) is the process of transforming a garage into a livable space. This could include converting it into a guest house, rental unit, home office, or extra living area. ADUs often feature their own kitchen, bathroom, and separate entrance.

Do I need a permit to convert my garage into an ADU?

A garage conversion or Accessory Dwelling Unit (ADU) is the process of transforming a garage into a livable space. This could include converting it into a guest house, rental unit, home office, or extra living area. ADUs often feature their own kitchen, bathroom, and separate entrance.

How long does it take to convert a garage into an ADU?

A garage conversion or Accessory Dwelling Unit (ADU) is the process of transforming a garage into a livable space. This could include converting it into a guest house, rental unit, home office, or extra living area. ADUs often feature their own kitchen, bathroom, and separate entrance.

Can I rent out my converted garage as an ADU?

A garage conversion or Accessory Dwelling Unit (ADU) is the process of transforming a garage into a livable space. This could include converting it into a guest house, rental unit, home office, or extra living area. ADUs often feature their own kitchen, bathroom, and separate entrance.

get in touch.

Ready to unlock the potential of your property with an ADU?

Let’s bring your dream Garage and ADU's to life. Contact us today for a free consultation!

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