Room additions and ADUs allow you to gain more space, support rental opportunities, and increase property value without leaving your beach community. They are perfect for growing families, guests, or creating a private rental unit.
Mission Beach properties often have limited square footage, so smart design and efficient layouts are essential. Our team focuses on maximizing space, natural light, and coastal-friendly materials while keeping your home comfortable and stylish.
We understand Mission Beach coastal building conditions, zoning, and lifestyle needs. Our team delivers well-designed additions and ADUs that fit your home, your lot, and your goals while maintaining quality craftsmanship.
We visit your property, understand your needs, and recommend the best addition or ADU options based on space and local guidelines.
We prepare architectural drawings, 3D visuals, and assist with permits and approvals required for Mission Beach coastal areas.
Our skilled construction team builds your new space with precision, while your project manager keeps everything organized and on track.
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:
Detached and attached ADUs designed for Mission Beach living, rentals, or guest stays.
Maximize views and space by building upward in narrow-lot coastal homes.
Private secondary living spaces ideal for family members or vacation visitors.
Add bedrooms, living areas, or dining extensions that flow naturally with your current home.
Convert existing areas into income units, studios, or comfortable living suites.
We handle permit-ready plans, coastal considerations, and structural engineering requirements.
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.
If you’re looking for a reliable room addition or ADU contractor in Mission Beach, Golden Shore Design and Build is ready to help. Contact us today for your free consultation and start creating the extra space your home needs.
The cost comparison between adding an addition to your main house and building a separate Accessory Dwelling Unit (ADU) is complex. Generally, a simple bump-out addition can be less expensive per square foot as it leverages existing walls, foundation, and utilities. However, a detached ADU, while often having a higher upfront cost due to new foundations and separate utility connections, can offer superior long-term value through rental income, increased property value, and greater privacy for both households. The final cost depends heavily on site conditions, design complexity, and local permit fees. For a detailed breakdown of ADU costs, benefits, and planning considerations, see our internal resource All You Need to Know When Building Accessory Dwelling Units.
The cost to build a 1-bedroom ADU in San Diego typically ranges from $150,000 to $350,000, with significant variation based on size, design, and site conditions. Key cost drivers include foundation work, utility connections, permitting fees, and material choices. A detached new construction ADU generally costs more than converting an existing garage. It is crucial to budget for soft costs like architectural plans, engineering, and city permits, which can add 15-25% to the total. For a detailed breakdown of costs, timelines, and the specific process in our region, we recommend reviewing our internal resource, Room Addition / ADU (JADU) Construction in San Diego. Professional consultation is essential for an accurate, site-specific estimate.
The cost comparison between building an Accessory Dwelling Unit (ADU) on-site versus purchasing a prefabricated model depends heavily on project specifics. A traditional stick-built ADU offers maximum customization for your lot and needs but involves higher labor costs, longer timelines, and more variable expenses. Prefabricated or modular ADUs can be significantly faster to install and offer more predictable pricing due to controlled factory construction, potentially lowering labor costs. However, site preparation, foundation work, utility connections, and transportation fees add to the prefab price. For a detailed breakdown of costs, permits, design considerations, and the pros and cons of each approach, we recommend reading our internal article, All You Need to Know When Building Accessory Dwelling Units.
Budgeting for a room addition requires careful planning, as costs vary widely based on size, complexity, and location. A basic addition typically starts around $40,000 to $50,000, but a high-end project can easily exceed $150,000. Key factors include the room's purpose, foundation work, roofing, electrical, plumbing, and interior finishes. Always allocate an additional 10-20% for unforeseen expenses, such as structural issues or permit adjustments. Obtaining multiple detailed quotes from licensed contractors is crucial. A professional design-build firm can provide accurate estimates by assessing your specific needs, ensuring the budget aligns with your vision while adhering to local building codes and quality standards.
Building an Accessory Dwelling Unit (ADU) or room addition in Mission Beach involves costs influenced by local regulations, construction complexity, and material choices. On average, ADU construction in San Diego can range from $200,000 to $400,000 or more. Mission Beach's coastal location and specific zoning codes, including height restrictions and setback requirements, can increase expenses due to permitting challenges and potential need for specialized engineering. Key cost factors include foundation work, utility connections, interior finishes, and whether it's a detached or attached structure. Obtaining detailed quotes from licensed contractors familiar with coastal construction and local ADU ordinances is crucial for an accurate budget. Always secure necessary permits to ensure compliance and protect your investment.
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