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Guest house builders in Los Alamitos
At ALSA Construction, we deliver a seamless remodeling experience with a focus on customer satisfaction. Specializing in kitchen and bathroom remodeling, ADU/garage conversions, and pergola installations, we bring expert craftsmanship and personalized service to every project. What sets us apart is our attention to detail, commitment to quality, and tailored approach that ensures your vision is brought to life. From start to finish, we prioritize open communication and your satisfaction, creating beautiful, functional spaces that enhance your home’s value and appeal.
"They took care of the process from A-to-Z. They helped me with the design and implementation was very thoroughly thought and smooth. Anar was helpful throughout the process."
Burak O on January 2025
At ALSA Construction, we deliver a seamless remodeling experience with a focus on customer satisfaction. Specializing in kitchen and bathroom remodeling, ADU/garage conversions, and pergola installations, we bring expert craftsmanship and personalized service to every project. What sets us apart is our attention to detail, commitment to quality, and tailored approach that ensures your vision is brought to life. From start to finish, we prioritize open communication and your satisfaction, creating beautiful, functional spaces that enhance your home’s value and appeal.
"They took care of the process from A-to-Z. They helped me with the design and implementation was very thoroughly thought and smooth. Anar was helpful throughout the process."
Burak O on January 2025
Opulent Design Build is Orange County's premier design-build company. We take the complicated process of home design, building and remodeling and make it an experience that you will love! There's no need to fear the design and construction process. We personally handle every aspect of the design, permitting and construction project process. Opulent Design Build is truly a one-stop design-build company.
Opulent Design Build is Orange County's premier design-build company. We take the complicated process of home design, building and remodeling and make it an experience that you will love! There's no need to fear the design and construction process. We personally handle every aspect of the design, permitting and construction project process. Opulent Design Build is truly a one-stop design-build company.
Our company prides itself on reliability, integrity and quality work. When Coastline Construction & Development, Inc. is hired, we make it a point to provide the highest level of customer service. We work with both residential and commercial clients, and apply the same attention to detail regardless of project size or complexity. Call today for your free estimate. We look forward to earning your business! Thank you! Additional email: ricksimmonsdirect@gmail.com.
"We are very pleased with our whole house remodel performed by our contractor, Rick Simmons of Coastline Construction. We received four bids from various contractors which were all competitive. We chose Rick for various reasons including that he was easy to communicate with and that he uses his own very skilled employees, no subcontractors. We completely remodeled the kitchen, the main and secondary bathroom, laundry room and installed new flooring throughout that required grinding and leveling the concrete slab. Every wall and ceiling was retextured and painted. It was a HUGE job. Rick is a hands-on contractor who stopped by the house 3-4 times a week (sometimes everyday!). Rick kept us up to date on scheduling and every addition we made to the scope of work was clearly documented in change orders that we discussed with him. We had a good idea of what we wanted design-wise and the end result reflects that vision."
Uiki And Liz N on April 2025
Our company prides itself on reliability, integrity and quality work. When Coastline Construction & Development, Inc. is hired, we make it a point to provide the highest level of customer service. We work with both residential and commercial clients, and apply the same attention to detail regardless of project size or complexity. Call today for your free estimate. We look forward to earning your business! Thank you! Additional email: ricksimmonsdirect@gmail.com.
"We are very pleased with our whole house remodel performed by our contractor, Rick Simmons of Coastline Construction. We received four bids from various contractors which were all competitive. We chose Rick for various reasons including that he was easy to communicate with and that he uses his own very skilled employees, no subcontractors. We completely remodeled the kitchen, the main and secondary bathroom, laundry room and installed new flooring throughout that required grinding and leveling the concrete slab. Every wall and ceiling was retextured and painted. It was a HUGE job. Rick is a hands-on contractor who stopped by the house 3-4 times a week (sometimes everyday!). Rick kept us up to date on scheduling and every addition we made to the scope of work was clearly documented in change orders that we discussed with him. We had a good idea of what we wanted design-wise and the end result reflects that vision."
Uiki And Liz N on April 2025
**Decoland Landscape & Construction Design DOES IT ALL** We were founded in 2007 with one goal in mind - to provide a FULL RANGE superior landscaping services, including landscaping, hardscaping and lawn maintenance, at affordable rates to the residents of Laguna Hills. Our company has grown over the years from a two person operation into a full staff of professionals able to meet your every landscaping need. We are dedicated to building long term relationships with our clients by providing the highest standard of quality on each and every project we do. Our reputation for customer satisfaction in the Laguna Hills area is what has made Decoland Landscape & Construction Design a household name in the industry. At Decoland Landscape & Construction Design, we understand that the outdoor aesthetic of your home or business is as important as your interior. We have a team of experts that will consult with you to determine your exact needs. From landscape maintenance to new construction, our residential and commercial clients in Laguna Hills know that when they call Decoland Landscape & Construction Design they will get the best. Contact us today for a FREE consultation and see the difference experience makes!
"Sean was fantastic. Not only did he help me create my Landscape vision but he walked me through the whole Process. He already knew all the HOA rules and guidelines. This was a no brainer in choosing him and Decoland to do my backyard. Anyone looking to do landscaping and/or any house remodeling should definitely look into using him. He’s already doing my other house right now. It’s coming out great."
Jr c on January 2025
**Decoland Landscape & Construction Design DOES IT ALL** We were founded in 2007 with one goal in mind - to provide a FULL RANGE superior landscaping services, including landscaping, hardscaping and lawn maintenance, at affordable rates to the residents of Laguna Hills. Our company has grown over the years from a two person operation into a full staff of professionals able to meet your every landscaping need. We are dedicated to building long term relationships with our clients by providing the highest standard of quality on each and every project we do. Our reputation for customer satisfaction in the Laguna Hills area is what has made Decoland Landscape & Construction Design a household name in the industry. At Decoland Landscape & Construction Design, we understand that the outdoor aesthetic of your home or business is as important as your interior. We have a team of experts that will consult with you to determine your exact needs. From landscape maintenance to new construction, our residential and commercial clients in Laguna Hills know that when they call Decoland Landscape & Construction Design they will get the best. Contact us today for a FREE consultation and see the difference experience makes!
"Sean was fantastic. Not only did he help me create my Landscape vision but he walked me through the whole Process. He already knew all the HOA rules and guidelines. This was a no brainer in choosing him and Decoland to do my backyard. Anyone looking to do landscaping and/or any house remodeling should definitely look into using him. He’s already doing my other house right now. It’s coming out great."
Jr c on January 2025
A to Z is a family owned business that has provided full fencing and landscaping services to the local community for the past decade. We are known in the community not only for our customer service, but also for the high quality of work we can provide. We firmly believe that experience is important and have set that as our motto to let you know that you are getting the highest quality of work and materials available. We are dedicated to serving you well and for this reason have been well recommended among our customers.
"Richard and his team did an amazing job on our condo in Laguna Woods. The bathrooms were beautifully upgraded and the entire home is now much brighter with the new custom lighting. We were very impressed and extremely happy with the upgrades. The team was always on their toes and very communicative. They will be our go-to for all our remodeling needs. We recommend A to Z to all our friends and family."
Christine L on April 2025
A to Z is a family owned business that has provided full fencing and landscaping services to the local community for the past decade. We are known in the community not only for our customer service, but also for the high quality of work we can provide. We firmly believe that experience is important and have set that as our motto to let you know that you are getting the highest quality of work and materials available. We are dedicated to serving you well and for this reason have been well recommended among our customers.
"Richard and his team did an amazing job on our condo in Laguna Woods. The bathrooms were beautifully upgraded and the entire home is now much brighter with the new custom lighting. We were very impressed and extremely happy with the upgrades. The team was always on their toes and very communicative. They will be our go-to for all our remodeling needs. We recommend A to Z to all our friends and family."
Christine L on April 2025
Our building expertise includes not only remodeling of existing homes, but new custom home construction, multifamily housing, tenant improvements, commercial and industrial office buildings. Our professional staff has the experience necessary to give you the confidence to start your next project today.
"Very well. Worked closely with me To consider my needs."
Deborah C on April 2025
Our building expertise includes not only remodeling of existing homes, but new custom home construction, multifamily housing, tenant improvements, commercial and industrial office buildings. Our professional staff has the experience necessary to give you the confidence to start your next project today.
"Very well. Worked closely with me To consider my needs."
Deborah C on April 2025
Building More Than Homes, We Build Legacies: A Family Tradition 15 Years Strong For over 15 years, D2A Construction hasn't just been a construction company - it's been a family legacy. Founded by B. Ben-Or, he poured his heart and expertise into building not just structures, but places where families could thrive. Today, that same passion burns bright in the next generation, carrying forward the tradition of exceptional craftsmanship and genuine care. We understand that building a home is more than bricks and mortar. It's about creating a safe haven, a space filled with laughter, love, and memories that will last a lifetime. That's why we approach every project with the utmost care and dedication, ensuring that your dream home is built to the highest standards and reflects the unique character of your family. We are licensed, bonded, and insured, but what truly sets us apart is the family guarantee. We treat your project as if it were our own, because in a way, it is. We're invested in your vision and committed to making your dream a reality, together. Let us help you build not just a house, but a legacy for generations to come. Contact us today and experience the D2A Construction difference.
"If you’re on the fence about hiring D2A Construction—don’t hesitate. We just wrapped up a full kitchen remodel, and the experience was night and day compared to past renovation nightmares. Dani was our project manager, and he was not only knowledgeable but honest and straightforward throughout the entire process. What impressed me the most was the communication. Dani gave us weekly updates, coordinated every inspection, and was quick to pivot when we made a few last-minute changes. He helped us find beautiful tile and cabinetry options that fit our aesthetic and budget, which is not easy to do. The workmanship was top-notch. You can tell the team takes pride in what they do—from the smooth finish on the cabinets to the precise tile work around the sink. They finished everything in a timely manner, and there was very little downtime between stages. I’ve already referred them to two coworkers. Dani and his crew are the real deal!"
John T on June 2025
Building More Than Homes, We Build Legacies: A Family Tradition 15 Years Strong For over 15 years, D2A Construction hasn't just been a construction company - it's been a family legacy. Founded by B. Ben-Or, he poured his heart and expertise into building not just structures, but places where families could thrive. Today, that same passion burns bright in the next generation, carrying forward the tradition of exceptional craftsmanship and genuine care. We understand that building a home is more than bricks and mortar. It's about creating a safe haven, a space filled with laughter, love, and memories that will last a lifetime. That's why we approach every project with the utmost care and dedication, ensuring that your dream home is built to the highest standards and reflects the unique character of your family. We are licensed, bonded, and insured, but what truly sets us apart is the family guarantee. We treat your project as if it were our own, because in a way, it is. We're invested in your vision and committed to making your dream a reality, together. Let us help you build not just a house, but a legacy for generations to come. Contact us today and experience the D2A Construction difference.
"If you’re on the fence about hiring D2A Construction—don’t hesitate. We just wrapped up a full kitchen remodel, and the experience was night and day compared to past renovation nightmares. Dani was our project manager, and he was not only knowledgeable but honest and straightforward throughout the entire process. What impressed me the most was the communication. Dani gave us weekly updates, coordinated every inspection, and was quick to pivot when we made a few last-minute changes. He helped us find beautiful tile and cabinetry options that fit our aesthetic and budget, which is not easy to do. The workmanship was top-notch. You can tell the team takes pride in what they do—from the smooth finish on the cabinets to the precise tile work around the sink. They finished everything in a timely manner, and there was very little downtime between stages. I’ve already referred them to two coworkers. Dani and his crew are the real deal!"
John T on June 2025
OC HOME BUILDERS, INC. is a FAMILY-owned business, working to achieve excellence since 2004. We service all of Orange County (including Seal Beach, Naples & Belmont Shore & Belmont Heights). Our goal is that you LOVE the End Result! Please call or TEXT for your FREE estimate (714) 330-9031. We look forward to BUILDING something Beautiful together! Jim is an EXPERT BUILDER & a MASTER at his craft! America is a skilled communicator. Assuring that clients know what to expect next & that each project is held to the highest standards. We are fully licensed, bonded and insured! Our crew is dedicated to building quality construction, including FULL HOME RENOVATIONS, ROOM ADDITIONS, ADU’S, KITCHEN REMODELS, BATHROOM REMODELS, WINDOW & DOOR REPLACEMENTS, GARAGE CONVERSIONS & MORE! We are proud recipients of the “Angi Super Service Award" since 2012, along with other prestigious awards. Meeting & exceeding client expectations for 12 years and counting! We LOVE what we do, and we hope it shows in the end results! CALL or TEXT us for a FREE ESTIMATE (714) 330-9031 Let’s build something beautiful together! CSLB# 1035464
"I will always hire Oc home builders. I have been using them for years. Great attention to detail that sets them apart from others."
maelin h on April 2025
OC HOME BUILDERS, INC. is a FAMILY-owned business, working to achieve excellence since 2004. We service all of Orange County (including Seal Beach, Naples & Belmont Shore & Belmont Heights). Our goal is that you LOVE the End Result! Please call or TEXT for your FREE estimate (714) 330-9031. We look forward to BUILDING something Beautiful together! Jim is an EXPERT BUILDER & a MASTER at his craft! America is a skilled communicator. Assuring that clients know what to expect next & that each project is held to the highest standards. We are fully licensed, bonded and insured! Our crew is dedicated to building quality construction, including FULL HOME RENOVATIONS, ROOM ADDITIONS, ADU’S, KITCHEN REMODELS, BATHROOM REMODELS, WINDOW & DOOR REPLACEMENTS, GARAGE CONVERSIONS & MORE! We are proud recipients of the “Angi Super Service Award" since 2012, along with other prestigious awards. Meeting & exceeding client expectations for 12 years and counting! We LOVE what we do, and we hope it shows in the end results! CALL or TEXT us for a FREE ESTIMATE (714) 330-9031 Let’s build something beautiful together! CSLB# 1035464
"I will always hire Oc home builders. I have been using them for years. Great attention to detail that sets them apart from others."
maelin h on April 2025
With over 30 years of experience. Email address handypa@yahoo.com. Owner operated. No subs. Cost is determined by the job. No travel charges. No service fee. Award winning.
"“Pier was everything we were hoping for and more. He had previously done a small powder room re-do, and I had kept his card. Good thing. When he came to give us an estimate on updating the kitchen, his knowledge was incredible. The end-product was more than we had hoped for. The painters & the counter-top installer were the best. Very happy with the end result.”"
CAROLINE M on April 2025
With over 30 years of experience. Email address handypa@yahoo.com. Owner operated. No subs. Cost is determined by the job. No travel charges. No service fee. Award winning.
"“Pier was everything we were hoping for and more. He had previously done a small powder room re-do, and I had kept his card. Good thing. When he came to give us an estimate on updating the kitchen, his knowledge was incredible. The end-product was more than we had hoped for. The painters & the counter-top installer were the best. Very happy with the end result.”"
CAROLINE M on April 2025
Eye 4 Design and Renovation is a small remodeling company based in Eagle Rock, CA. We pride ourselves on our high level of construction detail and our excellent customer service. Eye 4 covers all of Los Angeles County. We have many project references and some are willing to share our work in person. Our system is set up to maximize quality at realistic pricing. We are fully licensed and carry a 2 million dollar general liability policy. All of our staff are expected to be courteous and easy to communicate with. Our people are our strength. We are highly knowledgeable and experienced in Los Angeles construction. LIC#878235
"Great. Nick and his crew went above and beyond. On time and on budget for a tricky project including creating a bedroom and bathroom in my house, installing HVAC, fixing the roof, installing tile and hardwood floors, and more. Would 100% hire again. 10/10"
Rob A on April 2023
Eye 4 Design and Renovation is a small remodeling company based in Eagle Rock, CA. We pride ourselves on our high level of construction detail and our excellent customer service. Eye 4 covers all of Los Angeles County. We have many project references and some are willing to share our work in person. Our system is set up to maximize quality at realistic pricing. We are fully licensed and carry a 2 million dollar general liability policy. All of our staff are expected to be courteous and easy to communicate with. Our people are our strength. We are highly knowledgeable and experienced in Los Angeles construction. LIC#878235
"Great. Nick and his crew went above and beyond. On time and on budget for a tricky project including creating a bedroom and bathroom in my house, installing HVAC, fixing the roof, installing tile and hardwood floors, and more. Would 100% hire again. 10/10"
Rob A on April 2023
FAQs for guest house building service projects in Los Alamitos, CA
In most states, yes—you can build a guest house, but every city or county sets its own zoning rules and building codes. Before breaking ground, check local ordinances, confirm lot setbacks, and secure the right permits. A local contractor or design-build firm can walk you through the paperwork and site requirements so your project starts on solid legal footing.
Yes—homeowners often tap a few different financing tools. A home-equity line of credit (HELOC) lets you borrow against your equity as you need funds. If you prefer a lump sum tied directly to the project, a short-term construction loan can roll into a second mortgage once the build is complete. Cash-out refinancing is another option: you replace your current mortgage with a larger one and use the difference to cover construction costs.
When you build a guest house, you’re creating a separate structure for hosting visitors without the full amenities needed for permanent living. An accessory dwelling unit, however, includes a complete kitchen and bathroom, meeting building codes for a long-term residence. This key difference makes an ADU ideal for long-term occupancy or rental income, adding enduring value to your property.
How many rooms you need depends on how you plan to use the space. Aim for one bedroom per every one or two occupants to make sure everyone has enough privacy and comfort. Added living and dining areas give you extra functionality, especially for rental use or long-term stays.
Most homeowners pick somewhere between 600 and 1,500 square feet to fit all the essentials. Make sure your design supports one to two occupants per bedroom and includes enough common areas for comfortable daily living. A well-proportioned layout boosts both functionality and property value.
No—a guest house isn’t just a bump-out on your main home. A bump-out is a small extension within an existing room for extra seating or storage. In contrast, you build a guest house as a standalone building with its own foundation and amenities, giving you a fully separate living area that can boost your property’s versatility and value.
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