Accessory Dwelling Units

Choose an ADU and make the most of your space.

Golden State Buildings proudly offers all-inclusive ADUs in Central California, giving you the freedom to create a space that fits your lifestyle. From the first idea to the final walkthrough, we handle every step, including design, permits, and construction, so your new ADU is ready to enjoy without the hassle. With Golden State Buildings, your perfect, move-in-ready ADU in Central California is closer than you think.

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Crown

The huntington Home
(420 Sq Ft)

A compact and efficient ADU with 1 bedroom,
1 bath, and a shared kitchen/living space—perfect for guests, rentals, or a private getaway.

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Crown

The Legacy Lodge
(600 sq ft)

Spacious layout with 2 bedrooms, 1 bath, kitchen, living room, and dining area—great for small families or long-term stays.

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Crown

The Millerton Manor
(792 sq ft)

Family-friendly design with 2 bedrooms, 1 bath, full kitchen, family room, laundry room, and entry porch—balanced and practical.

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Crown

The Elegant Estate
(1200 sq ft)

Our largest model with 2 bedrooms, 2 baths, 1 home office, kitchen, dining room, laundry room, living room, and hallway—room for family, work, and everything in between.

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The Huntington Home

The Huntington Home is our smallest ADU, at 420 square feet, perfectly designed to maximize every inch of space. It offers a cozy yet functional layout that makes it ideal for those looking to add a guest house, rental unit, or personal retreat to their property.

The Huntington Home Features:

  • 1 Bedroom
  • 1 Bath
  • Kitchen and Living Space
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The Legacy Lodge

The Legacy Lodge is a spacious ADU that provides the perfect balance of comfort and functionality, at 600 square feet. This unit offers ample space to create a true home away from home. The Legacy Lodge offers all the room you need without sacrificing style or efficiency.

The Legacy Lodge Features

  • 2 Bedrooms
  • 1 Bath
  • Kitchen
  • Living Room
  • Dining Room
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The Millerton Manor

The Millerton Manor, at 792 square feet, is a great fit for families who need a little more room to spread out. With a smart layout and plenty of living space, this ADU works well as a full-time residence, guest home, or rental. It combines comfort, functionality, and family-friendly features in one well-designed unit.

The Millerton Manor Features:

  • 2 Bedrooms
  • 1 Bath
  • Kitchen
  • Entry Porch
  • Family Room
  • Laundry Room
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The Elegant Estate

The Elegant Estate, at 1200 square feet, is built for families who want more space, more comfort, and more ways to use their home. With a spacious layout and carefully planned rooms, it offers the feel of a full-size residence while still fitting neatly on your property.

The Elegant Estate Features:

  • Master Bedroom
  • Master Bath
  • Second Bathroom
  • Second Bedroom
  • 1 Home Office
  • Laundry Room
  • Dining Room
  • Hallway
  • Kitchen
  • Living Room
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How It Works: Your ADU in California, Step by Step

At Golden State Buildings, we make it easy to add an ADU to your property in California. From checking eligibility to handing you the keys, here’s what the process looks like:

1

Determine if your property is eligible for an ADU

2

Choose the ADU that matches your budget and fits your property

3

Sign contract & make a 10% down payment

4

Blueprints and permitting begins (3-4 months) depending on building department jurisdiction

5

construction process begins and continues through all stages until you receive certificate of occupancy

6

final walkthrough and move in. enjoy your new adu!
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Financing Available For ADUs

First Community Mortgage offers financing options for Accessory Dwelling Units with clear terms and a simple application process. Choose from loan plans to find one that fits your project and budget, making it easier to move forward with your ADU build. Request a quote to begin building and financing your ADU!

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Frequently Asked Questions About ADUs

Building an ADU can offer many benefits for you and your neighborhood. These types of housing are flexible and can serve many purposes over time.

1. Preserves Neighborhood Character It provides expanded housing options in a way that does not alter the character of existing neighborhoods.

2. Generates Extra Income Homeowners can use ADUs to create an additional source of rental income, whether they lease out the main residence or the unit itself. This income can help offset mortgage payments, reduce financial pressure, and offer more flexibility for future planning.

3. Maximizes Land Use ADUs allow for more living space without the need to purchase new property. This makes them a smart choice for growing families, multigenerational households, or anyone looking to make better use of the space they already own.

4. Supports Multi-Generational Living While small homes can help people enter the housing market or downsize to a more manageable home, ADU’s can uniquely provide the benefit of separate living space for friends, family members, and caregivers while keeping them close by. These are often called a “mother-in-law” suite.

5. Eco-Friendly Housing Option Many ADUs are designed with sustainability in mind. They can be built using energy-efficient systems, low-impact construction practices, and eco-friendly materials. Their smaller footprint naturally reduces energy consumption, making them a smart choice for those looking to lower their environmental impact and embrace greener living.

Yes! ADUs are legal across California. Local rules can vary by county, but we’ve gathered everything you need to help you get started. Contact us today!


It depends on your goals! Building an ADU is typically more affordable, faster, and can increase your property’s value or generate rental income. Buying a house gives you more space and independence, but comes with a bigger price tag. If you already own property, an ADU can be a smart way to expand without the cost of moving.

A modular home is a larger, prefabricated house built in sections and assembled on-site, requiring full permits and utilities.

An ADU is a smaller living space built on the same property as an existing home, often used for guests or rentals. ADUs are more affordable and easier to permit than modular homes.

In short, modular homes are full-sized homes, while ADUs are smaller, added spaces.

The cost of an ADU depends on factors like size, layout, and custom features. Ready to get started? Request a free quote to see what your custom ADU will cost.

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to-scale PLacement

See it before you build it. We use digital tools to place your selected ADU model directly onto an image of your property, so you can visualize exactly how it will look and fit in your space.

Permits Included

Navigating the local permitting process can be overwhelming, but we’ve got you covered. Every ADU we sell includes all required permits and permit fees so there are no surprises.

Multiple Floor Plans

From compact layouts to spacious two-bedroom models, we offer a range of ADU floor plans. Our team will walk you through each option, so you can find the right fit.

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Ready to Buy Your ADU?

Turn your backyard into something more. From private guest suites to rental-ready studios or peaceful home offices, Golden State Buildings crafts high-quality ADUs designed for comfort, style, and lasting value.

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