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Custom Extensions

*Prices are not guaranteed. A comprehensive estimate will be conducted to determine more accurate rates.

What We Do: Custom Home Additions

Love your Sacramento neighborhood but feel confined by your home’s current size?


Here at West Coast Construction Pro, we understand that space matters. Whether your family is growing, you’re transitioning to a WFH setup, or you just simply desire more room for your family's relaxation and entertainment, we are here to provide you with the perfect solution.

Conversion or extension, we will provide the room you need that can also significantly increase the value of your home.

Custom Home Additions in Sacramento
Room Additions

A room addition allows you to seamlessly add to your current floor plan, creating a functional space that still complements the existing architecture of your home.

Bathroom Additions

A bathroom addition can greatly improve both the convenience and functionality of your home, particularly if you have a larger family or households with guests. Say you desire a small powder room or perhaps a luxurious master bath. We can create a design that suits your taste and meets your needs, too.

Garage Conversions

We can transform your garage into a livable space such as your home office, guest suite, or even your own entertainment area. We also make sure that the process is as seamless as possible, addressing all aspects from insulation and heating to interior design.

Second Story Additions

Not only can a second-story addition dramatically increase your living space, but it also offers you an opportunity to modernize the exterior look of your home.

Guest Houses

A guest house provides a private and very comfortable space for your visitors while enhancing your property's value and appeal.

In-Law Suite

If you have a multi-generational family, this provides privacy and independence while still keeping your loved ones close. We also pay attention to details like accessibility and ease of use in our designs, ensuring it is comfortable for all ages.

Granny Flats

A self-contained living space, usually located on the same lot as the main house can serve as a home for your elderly parents, a rental unit, or even a private retreat.

Pool Houses

Whether you need a changing area, a shaded lounge, or maybe a full guest suite, we can create an addition that enhances your outdoor living experience!

Our Process


You contact us for a free, in-person estimate. This is a no-obligation opportunity for us to understand your vision, needs, and budget.

We take this time to answer any questions you may have as well as provide you with professional advice on how best to transform your space. We also listen intently and discuss various design possibilities to create a plan that aligns with both your lifestyle and aesthetic preferences.

Our goal here is to build a strong foundation of trust and open communication.


We make sure to apply for and receive all necessary paperwork.

A crucial step for us to avoid any legal complications or delays in the project timeline. We, of course, keep you informed to make sure you fully understand what each permit is for and why it’s essential.


You sit back and watch your project come to life.

From sourcing quality materials to ensuring precise installations–we manage every detail for you! Plus, we maintain an open line of communication, keeping you updated on progress and addressing any concerns promptly.

Why Choose West Coast Construction Pro: Your Local Home Addition Contractors

Quality Guarantee

We believe in doing things right the first time. From our initial design to those final finishing touches, we make it possible for every aspect to meet the highest standards of craftsmanship.

Plus, we also provide you with a 1-Year Labor Warranty, giving you that peace of mind, and a 10-Year Structural Warranty that guarantees the long-term integrity of your addition.


With 15 years in the business and over 900 projects completed, this conveys our wealth of experience as well as our proven expertise.


With every project we undertake, we treat your home as if it were our own, always making sure that there is as minimal disruption as possible while still maintaining a clean and safe work site for everyone.


As a faith-based company, we believe in the power of giving back. A portion of our proceeds goes towards supporting our local charities and missionaries.

With Us, we're not just building homes; we're helping build communities.

Let's Build Together. Chat, Call us at 916-805-3339 or Submit a Form to Get in Touch.

Sacramento ADU Builder

Does your lot have unused, extra space? An accessory dwelling unit can be an effective option to create some passive income or to house additional family members. 

What is an ADU?

ADUs are living spaces that can be attached or detached from a primary residence. They are commonly known as granny flats, in-law suites, backyard cottages or secondary dwelling units.

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