Master Suite Addition in Lakewood: Design, Construction & Final Walkthrough Case Study

Last Updated on April 18, 2026 by DYM Builders Group

 

This is a master suite addition in Lakewood, CA, completed by DYM Builders, where we took a small, simple house and turned it into a more open, modern, and comfortable living space.

 

The original home was about 1200 sq ft, and it felt a bit tight for the family’s needs. The main goal was clear from the start. Add more usable space, improve everyday comfort, and create a private master suite where the client could relax and enjoy more privacy.

Let’s show you how we successfully completed this home addition project. 

Project Goal: Master Suite Addition in Lakewood, CA

The client wanted a full house expansion in Lakewood with:

• Bigger master bedroom
• New master bathroom
• Better privacy and comfort
• Space planned for future upgrades

We designed a luxury master suite addition with a smart two-phase plan.

Step 1: Planning and Design

We first spent time understanding how the family uses their home every day. This helped us design a space that actually fits their lifestyle, not just adds square footage.

We planned:

• A large and comfortable master bedroom
• A spacious 15×15 master bathroom with a modern layout
• Future space for a walk-in closet and laundry area in the next phase

This was more than a basic upgrade. It became a full master bedroom remodel addition focused on comfort, privacy, and better living.

We also took care of:

• Floor layout planning
• Structural design coordination
• City permit drawings and approvals

Everything was prepared before construction started to avoid delays later.

Step 2: Construction Phase 1

We built a 300 sq ft extension from the ground up and connected it smoothly with the existing home.

Our work included:

• New foundation and framing for strength and safety
• Full wall structure and roof extension
• Electrical and plumbing rough installation
• Basic interior layout shaping for the new master suite

We also created a temporary living setup inside the home so the family could stay comfortably during construction without needing to move out.

Step 3: Interior Build

Once the structure was ready, we moved into interior work where details really matter. We focused on making the space feel warm, practical, and modern.

We completed:

• Full master bedroom framing and space definition
• Master bathroom layout with proper flow and spacing
• Double sink vanity installation for daily use comfort
• Large walk-in shower with full tile work from floor to ceiling

The design direction was clean, bold, and slightly dark-toned to give a premium feel.

Step 4: Final Walkthrough

At this stage, the new space is already fully usable and comfortable.

Master Bedroom

• Open and spacious layout that does not feel tight
• Good natural light coming into the room
• Designed for daily rest and privacy

Master Bathroom

• Double sink vanity for easy use
• Full-height tile shower walls for a clean, modern look
• Strong and bold design finishes that match the client’s taste

We also added warm dark wood tones and contrasting colors to give the space a more luxurious feel.

If you are planning a big upgrade, it helps to understand what a professional home renovation contractor does. Learn more about what a Professional home renovation contractor does before starting your project.

Timeline for Master Suite Addition Project

We split the whole project into two phases so the family did not have to move out and could continue their daily life without stress.

Phase 1: Around 3 Months

In the first phase, we focused on building the new 300 sq ft extension and completing the main structure of the master suite. This included foundation work, framing, roofing, and basic interior setup. 

We also made sure the family could still live inside the home comfortably while construction was going on. Everything was planned step by step, so there were no delays or confusion during the work.

Phase 2: Same Duration Expected

The second phase will take a similar time because it includes detailed finishing work. This part focuses on final interior upgrades like the walk-in closet, laundry room, and full luxury finishing touches. Since it involves more detailed design and finishing work, it needs the same careful timeline to get the best quality result.

Build Your Home with DYM Builders

DYM Builders is a trusted home addition contractor in Lakewood that helps homeowners expand their homes with simple and well-planned construction work. We take care of everything from design, permits, and planning to full construction, so the process stays smooth from start to finish.

We specialize in home additions, including master suites and extra rooms that match your home style and needs. If you are ready to add more space or upgrade your home, contact DYM Builders today, and let’s start your project.

Final Result

After Phase 1, the home already feels much better than before. The new addition made the house feel bigger, more open, and more comfortable to live in. The flow between old and new spaces feels natural, not like an extra build.

This house expansion in Lakewood added real value in both space and function. The family now has a proper master suite that improves daily living, privacy, and comfort.

Phase 2 will complete the full transformation. It will add:

• A walk-in closet for better storage and organization
• A dedicated laundry room for convenience
• Final luxury finishes to complete the modern design look

Once finished, the entire space will feel like a fully custom luxury master suite addition in Lakewood, designed for long-term comfort and value.

Smart homeowners also think about future-proofing their homes for long-term comfort and efficiency so their space stays comfortable and efficient for years. 

 

FAQs How much does a master suite addition cost in Lakewood? A master suite addition in Lakewood usually costs between $80,000 and $200,000+, depending on size, design, and material quality. A common 400 sq ft project averages around $150,000 in most cases.Smaller 300 sq ft additions can start near $60,000 to $90,000, while larger luxury suites with custom bathrooms, closets, and premium finishes can go beyond $120,000 to $200,000+. Final cost also changes based on labor, structure type, and city permit requirements. How long does a room addition project take? Most room addition projects take about 2 to 4 months for each phase. Time can change based on design complexity, inspections, and how fast city approvals are completed. Do I need permits for a home addition in Lakewood, CA? Yes, permits are required for any home addition work in Lakewood, CA. We handle all permit drawings, approvals, and city requirements so the process stays smooth and stress-free. What features are included in a master suite addition? A master suite usually includes a bedroom, bathroom, and closet space with proper lighting and plumbing. Many projects also include custom design finishes to match the homeowner’s style. Does a master suite addition increase property value? Yes, it increases home value because buyers prefer extra space and modern bathrooms. A well-designed master suite makes the home more comfortable and also more attractive in the market.