Room additions and ADUs (including JADUs) are one of the best ways to add usable space, convenience, and long-term value to your home. They allow you to create guest rooms, rental units, home offices, or private living areas without moving. With proper design, clear planning, and an experienced team, the entire process becomes smooth, efficient, and stress-free.
La Mesa homes often feature suburban layouts, cozy neighborhoods, and a mix of classic and modern designs. Whether you’re adding a new room or building a detached ADU in your backyard, our team plans every detail to enhance comfort, flow, and overall property value.
We bring strong local experience, reliable communication, and precise architectural planning tailored to La Mesa’s unique neighborhoods. Homeowners trust us for quality work, organization, and professional project management.
We discuss your goals, study your home’s layout, and build a detailed plan that matches your needs and budget.
Our designers prepare accurate floor plans, 3D visuals, and engineered layouts customized for La Mesa’s home styles.
We finalize all architectural and structural drawings, ensure compliance with ADU/JADU rules, and prepare your project for construction.
At Golden Shore Design and Build, we don’t just renovate Houses — we transform them into functional, beautiful spaces tailored to your lifestyle. Here’s why so many homeowners trust us with their Home remodels:
High-quality previews so you can clearly see your new space before construction begins.
Detailed room layouts, elevations, and measurements for smooth and accurate building.
Safety-focused structural designs and load calculations.
Full wiring, plumbing, HVAC, and mechanical coordination.
Complete plans prepared for quick approval and a streamlined workflow.
We recently finished a complete kitchen renovation and are very satisfied with our construction and renovation firm. From the initial design consultation through to the final walk-through, the staff at this company displayed a remarkable level of professionalism and knowledge. Our project manager kept us fully apprised of the progress through daily updates and was very responsive to all of our inquiries. The staff were very considerate, on time, and maintained a remarkably clean construction site, causing little disruption to our daily routine. The workmanship is of the highest quality, and they completed the project right on time and within the agreed-upon budget with no surprises.
Professional builders providing neat finishes and smooth project coordination.
The remodel on our place included a few tricky parts but this team knew exactly what they were doing. Their design sense made the layout flow better than it ever has. It feels like a real upgrade in terms of value.
I brought them in for a full home remodel and the whole experience felt smooth and straightforward. Their design ideas actually made the renovation feel exciting instead of stressful. You can tell the builders care about a quality build from start to finish.
I hired them for a residential remodel, and I’m blown away by the results. The design process was smooth and collaborative, which made the whole project stress-free. These guys really know how to deliver a great renovation.
My bathroom and kitchen renovation turned out strong across the board. Their remodel contractor kept communication easy and never made things confusing. The quality build shows and the place feels refreshed in the best way.
I had this business remodel two bathrooms and both turned out perfect. They made sure I was comfortable while the work was being done. The results speak for themselves.
Their team was thorough, explaining the issue and the best solution without pushing unnecessary work. The repair was done on time, and our home feels solid again highly recommend their expertise!
I recently hired Golden Shore Design and Build to paint my kitchen cabinets, and I couldn’t be happier with the results! From start to finish the team was professional, punctual, and incredibly detail-oriented. They took the time to explain the process, offered helpful color suggestion, and made sure every step was done right.
The transformation is amazing – my kitchen looks brand new! The finish is smooth and flawless, and they left everything clean and tidy once the job was done. I really appreciated their respect for my home and the care they put into their work.
If you’re considering giving your cabinets a fresh new look, I highly recommend Golden Shore Design and Build. They exceeded my expectations, and I’d gladly work with them again.
CG Escondido
We added a family room to the back of our house and this team handled everything from permits to finish work. They made sure the new space blended perfectly with the existing structure. Super happy with the result and the process.
We deliver complete 3D designs, planning, and engineering services for room additions, ADUs, and JADUs customized for La Mesa homes. Our team manages every detail for clarity, accuracy, and a smooth building experience. Contact us today to schedule your free consultation and start expanding your home with confidence.
The cost comparison between adding an addition and building an Accessory Dwelling Unit (ADU) is nuanced. Generally, a simple bump-out addition can be less expensive per square foot as it leverages existing utilities and foundation. However, a detached ADU, while requiring its own systems, often provides a higher return on investment through rental income and significant property value increase. Key factors include site conditions, local permit fees, and the scope of finishes. For a comprehensive breakdown of costs, regulations, and strategic benefits, we recommend reviewing our detailed internal article, All You Need to Know When Building Accessory Dwelling Units. This resource is essential for making an informed financial decision for your property.
The $40,000 grant in California typically refers to the CalHFA ADU Grant Program. This initiative provides forgivable loans of up to $40,000 to qualified homeowners to cover pre-development costs associated with constructing an Accessory Dwelling Unit (ADU) or Junior ADU (JADU) on their property. Eligible costs include impact fees, planning, design, soil tests, and permit applications. The loan is forgiven if the ADU construction is completed and the unit is occupied by a low- or moderate-income tenant for a minimum of five years. This program aims to increase affordable housing stock and assist homeowners with the often-prohibitive upfront costs of ADU development. It's crucial to check current program guidelines, as funding is limited and administered through approved local partners.
The cost comparison between building an ADU (Accessory Dwelling Unit) and buying a prefab unit is nuanced. Site-built ADUs often have higher initial costs due to custom designs, extended labor, and potential site challenges, but they can offer greater long-term value through customization and higher-quality finishes. Prefab or modular ADUs typically have a lower upfront price and faster installation due to factory-controlled construction, but costs can rise with customization, site preparation, and transportation. The cheaper option ultimately depends on your specific project goals, local permitting fees, site conditions, and whether you prioritize speed and budget (prefab) or customization and integration (site-built). Always obtain detailed quotes for both approaches.
The cost per square foot to build an Accessory Dwelling Unit (ADU) in San Diego varies significantly based on design, materials, and site conditions. As a general industry standard, you can expect a range from approximately $300 to $550 per square foot for a fully permitted, turnkey construction. This includes foundation, framing, roofing, plumbing, electrical, and interior finishes. Prefabricated or modular ADUs may fall at the lower end, while custom designs with high-end finishes or complex site work can exceed this range. Key cost drivers include utility connections, permit fees, and whether you are converting existing space versus new ground-up construction. For a detailed breakdown of costs, process, and design considerations specific to our region, we recommend reviewing our internal resource, Room Addition / ADU (JADU) Construction in San Diego. Always obtain multiple detailed quotes from licensed contractors to ensure your budget aligns with your project vision.
Building a room addition or an Accessory Dwelling Unit (ADU or JADU) in La Mesa, California, is an excellent way to increase your property's value and functionality. The process involves careful planning, adherence to local zoning codes, and securing the necessary permits from the City of La Mesa. Key considerations include determining the unit's size, placement on your lot, and ensuring it meets state-mandated requirements for kitchens, bathrooms, and separate entrances. Hiring a licensed design-build firm is crucial for navigating these regulations and ensuring a structurally sound, code-compliant project that maximizes your investment. For a detailed guide on local specifics, please refer to our internal article Room Addition / ADU (JADU) Construction in La Mesa.
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