Room Addition Orange County: Room Additions & 2nd Story Additions

  • Extra Bedrooms Or Guest Suites
  • Dining Room Or Kitchen Expansions
  • Home Offices Or Playrooms
  • Master Bedroom Expansions

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Get My Free Room Addition Consultation (949) 749-4142

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Need more space in your home? Whether your family is growing or you just need a little more elbow room, a custom room addition can give you the space you need—without having to move.


At Home Remodeling Huntington Beach, we offer room additions in Orange County, from single-room expansions to complete second-story additions. We are a design build contractor, which means we offer a unified approach to the design and construction process of your project. Our room addition services range from one room home additions to second story additions and more, giving your home the added space and functionality you require. We serve homeowners in Costa Mesa, Newport Beach, Mission Viejo, and San Clemente with local expertise for every project. Our portfolio of finished projects speaks to our level of experience and dedication to quality craftsmanship.


During your initial consultation, we will discuss your budget and establish a clear payment schedule to provide you with certainty and peace of mind throughout your project.

Introduction to Room Additions

Room additions are a great method of increasing your living area and making your house fit your evolving requirements.


  • In Orange County, CA, where available space is often at a premium, a room addition can provide the space you need for a growing family, aging parents, or simply to enhance your lifestyle.


  • Adding a room for a home office, additional bedroom, or expansive guest suite, a professional room addition contractor will make your new space harmonize flawlessly with your existing structure.


  • Room additions not only give you the option of creating multiple rooms or one big room, they can also significantly increase your property value.


You can turn your house into a more habitable and practical home without the hassle of relocation with the right contractor,

Illustration of a Room Addition Orange County
Room addition contractor Orange County

Why Add a Room?


We help homeowners in Huntington Beach and beyond create:

  • Additional bedrooms or guest suites
  • More spacious kitchens or dining areas
  • Playrooms, home offices, or gyms
  • Attached in-law units or Accessory Dwelling Units (ADUs)


Room additions can be used as a guest suite, hobby space, or even a rental unit, adding both utility and property value. Accessory Dwelling Units (ADUs) are created as separate living spaces, frequently for elderly parents or as a rental possibility, and have to meet special city regulations and building codes throughout Orange County.


Our room additions are carefully crafted to look and feel like a natural part of your home. We handle the entire process—plans, permits, construction, and clean-up.


Selecting the best company for your room addition or ADU project ensures a seamless process and quality outcome. We are committed to delivering outstanding service in each phase of your project.

Types of Room Additions

In terms of room additions, Orange County homeowners can choose from a range of possibilities to meet their individual needs and lifestyles. Some of the most popular options are kitchen additions, which provide additional space for food preparation, dining, and socializing; bathroom remodeling, which can take an outdated or underutilized space and turn it into a relaxing oasis; and garage conversions, which take underused garages and convert them into usable living spaces like home offices, gyms, or playrooms.

Each style of room addition has its own benefits, and which is best for you will have to do with your lifestyle and goals. It's critical that you work with a reputable contractor who knows local building codes and who will hold your hand through the entire process, from the initial design right down to the completion of your new space. With professional guidance, not only will your room addition project meet your specific needs, but it will also enhance the overall comfort and value of your home.

Huntington Beach Room Addition Orange County
Garage Conversion Orange County

Garage Conversions

Garage conversions are a cost-effective means of adding living space to your Orange County home. Rather than allowing your garage to remain unused or full of clutter, you can convert it into a functional room that suits your lifestyle—a home office, gym, playroom, or guest suite, for example.

Garage conversions are particularly popular in neighborhoods where outward expansion is not an option because of lot size or zoning limitations. By employing a quality, reputable contractor, you can be assured your garage conversion will be done to the highest quality, comply with all local building codes, and be a great value for your money.

This method not only provides extra space but also enhances the total livability and value of your home.


Adding a second story to a house - Room Addition Orange County
2nd story room addition orange county
2nd story room addition Orange County

Second-Story Additions: Build Up, Not Out

In Orange County, where lot sizes may be smaller, second-story additions provide a clever solution for homeowners who need to expand their living space without giving up their yard or outdoor spaces. By going up rather than out, you can create a stunning new room—a master suite, home office, or family room, for instance—that capitalizes on natural light and boasts great views.

Second-story additions are particularly popular among families that require extra living space but wish to remain in their existing home and community. Through the services of a qualified contractor, your second-story addition will be crafted to match your home's style and construction, adding the additional space you require while improving both functionality and curb appeal.

Short on room on your property? A second-story addition is a smart way to double your square footage without changing your home's footprint. Our team has been building second-story room additions in Orange County for decades. We'll design the perfect layout and structure to give your home the room it needs without sacrificing its safety and style.


Expanding an existing room or adding a new one can enhance both function and aesthetic appeal, making your house into a warmer and more personal home.


Common second-story additions include:

  • Full upstairs bedrooms and bathrooms
  • Upstairs laundry rooms
  • Home theatres or gyms
  • Loft-style offices or guest spaces


One of the biggest advantages of second-story additions is the large amount of square footage gained, which not only expands your living space but can also greatly enhance the value of your property.

Room Addition Huntington Beach
Costa Mesa Room Addition 2nd Story
2nd Story Room Addition Orange County
2nd Story Room Addition Orange County

Other Remodeling Services To Consider Doing With Your Room Addition Project

When considering a room addition, it’s also an excellent opportunity to update your kitchen or bathroom, or do that other project that you may have in the back of your mind. Much like a room addition, a home remodel can provide a high return on investment, further increasing the value of your home and enhancing its overall appeal.


Our company has extensive experience handling a wide range of projects, including room addition projects, kitchen remodels, and ADUs, demonstrating our expertise and reliability across various home renovation needs.


At Home Remodeling Huntington Beach, we offer customers a complete range of kitchen remodeling services, from cabinet refinishing and countertop work to a complete remodel of the space. We also offer a comprehensive range of bathroom remodeling services, from updating fixtures and tile to a complete bathroom remodel.


By remodeling other rooms in conjunction with your room addition project, you can take advantage of getting all of the work done in one effort, from minimizing the disruptions to your family's lifestyle during construction to saving costs by getting multiple areas done in one visit by each tradesperson. Coordinating multiple jobs under one general contractor streamlines the process, saving both time and costs while ensuring all aspects of your projects are managed efficiently.


Our team of professionals will work with you to create a custom design that complements your room addition project and meets your unique needs. We start with a complimentary design consultation to help you envision your home remodel and addition, and our team will guide you through every step of the process.


Whether you wish to update your living room floor, add a new room, or completely transform your yard, our remodeling services are designed to enhance your Orange County home.


Let us help you with your next project, whether it's a room addition, kitchen remodel, or any other home improvement you have in mind.


Check out our blog for additional remodeling ideas and tips.

The Construction Process

The construction process for an Orange County room addition begins with careful planning and design to ensure your new room is customized to your needs and meets all the local building codes.


Once you and the city have approved the design plans, your contractor will secure the appropriate permits and ready the site for construction of the project. Once construction is under way, the project will progress through a number of stages, including

  • Laying the foundation
  • Framing
  • Installation of electrical and plumbing systems
  • Completing the interior finishes such as drywall, flooring, and painting.


A good, reputable contractor like Home Remodeling Huntington Beach will oversee all the details of the entire project, arrange for daily tidying to reduce inconvenience, and keep you updated every step of the way. With the right contractor in charge of construction, you can rest assured that your new space will be finished effectively, safely, and to high standards of quality, making it a lovely and functional addition to your home.

Under construction room addition Orange County
Reviewing Blueprint for Room Addition Orange County

Why Choose Home Remodeling Huntington Beach?


  • Our knowledge of zoning and regulations
  • Licensed, insured, and experienced contractors
  • Clear timelines and clear pricing
  • Exceptional craftsmanship with positive homeowner endorsements


We are proud to be one of Orange County's most reliable room addition contractors.


Our team of designers, engineers, and builders works closely with you at every stage. We want to make sure that your new room or second story not only fits your needs but also looks like it has always been a part of your home.

Start Your Huntington Beach Room Addition Project Today

Ready to expand your living space? Let Home Remodeling Huntington Beach help you build a custom room addition that serves your purposes. Fill out the form below or call us now for a free consultation.

Contact us now to schedule a free consultation and let us turn your dream Room Addition into reality!