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Residential Additions

At LL Custom Contracting, we understand that your home should grow with your lifestyle. If you're welcoming a new family member, need more room for entertaining, or simply want to enhance your living space, custom home additions are a smart and lasting investment.

As a trusted home additions contractor serving Oakland County, MI, we specialize in thoughtful, family-friendly home additions that blend seamlessly with your home’s original charm, so it looks like it was always meant to be there.

Our team can provide the extra space your family needs:

  • Master Suite
  • Dormer Addition
  • Home Office
  • Sunroom
  • Kitchen Expansion
  • Additional Bathroom
  • Family Room
  • Garage
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Why Choose LL Custom Contracting for Your Custom Home Addition?

We’re not just builders, we’re educators and partners. Homeowners choose LL Custom Contracting because we:

Provide honest guidance upfront so you know where your budget and goals align before engaging an architect.

  • Have a strong referral-based home contractor reputation from past clients and trusted architects.

  • Offer a construction timeline guarantee, a major point of pride that sets us apart.

  • Treat you like family, because we believe in building relationships just as strong as our homes.

When you partner with LL Custom, you’ll work directly with Chris, our founder, who personally responds to every inquiry form. You’ll never feel lost in a sea of sales reps. You’ll always know where your project stands and what’s coming next.

How Do I Start Planning a Home Addition?

We get this question a lot, and it’s a good one! Planning a home addition can feel overwhelming, but we break it down into manageable steps:

  1. Initial Consultation – We discuss your goals, needs, and budget range. If you haven’t spoken to an architect yet, we’ll help you decide when and how to loop them in.

  2. Feasibility Review – We evaluate your property, zoning rules, and structural limitations to make sure your ideas are viable.

  3. Architect Collaboration – If needed, we’ll connect you with top architects we trust for architect collaboration additions.

  4. Estimate + Scope – Once a concept is in place, we’ll give you a realistic range for what your custom home addition will cost.

  5. Construction Agreement + Schedule – After design approval, we finalize your construction contract and establish your guaranteed timeline.

Our proactive process helps you avoid unnecessary back-and-forth. We help you align vision and budget early so you can move forward with confidence.

 

What Types of Home Additions Add the Most Value?

The best home additions are the ones that improve both daily living and long-term resale value. These are some of the most popular and valuable:

  • Primary suite additions with walk-in closets and spa-style bathrooms

  • Kitchen expansions for more counter space, seating, and storage

  • Family room additions that open to outdoor patios or decks

  • In-law or guest suites for aging parents or visiting family

  • Home office and flex rooms to support today’s hybrid lifestyles

As a luxury home additions contractor, we also specialize in high-end finishes, energy-efficient systems, and seamless design integration. The result? Additions that feel like they’ve always been part of your home.

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Seamless Collaboration with Top Architects

We’re not a design-build firm; we believe in partnering with best-in-class architects who specialize in designing for our local communities. Our approach to architect collaboration additions means that you get thoughtful, site-specific design paired with expert construction execution.

Many of our projects start with referrals from architects who trust us to bring their visions to life. If you’re early in the process, we’ll help you find an architect who aligns with your style and budget. Already have plans? We’re happy to collaborate.

Service Areas
LL CUSTOM CONTRACTING

SERVICE AREAS

At LL Custom Contracting, we are proud to provide exceptional craftsmanship and personalized service to communities across Southeast Michigan. While the majority of our clients come from Berkley, Beverly Hills, Birmingham, Bloomfield, Grosse Ile, Grosse Pointes, Huntington Woods, Northville, Royal Oak, Salem, and surrounding areas, we are proud to serve clients throughout the entire region. Whether you’re planning a home renovation, building your dream home, or working on a custom project, our experienced team is dedicated to bringing your vision to life—wherever your project takes us.

Is a Home Addition Worth the Investment in Oakland County?

In most cases, yes. Oakland County is a thriving area with a high demand for updated, spacious homes. Adding square footage in sought-after neighborhoods like Bloomfield Hills, Royal Oak, or West Bloomfield often yields a strong ROI. Plus, with interest rates and moving costs still high, many families are choosing to stay put and upgrade what they already love.

Our clients often find that expanding is more cost-effective than moving, especially when they’ve already found the perfect school district, commute, or view.

Looking for peace of mind? Our construction timeline guarantee ensures your project stays on track, so your addition doesn’t drag on endlessly or disrupt your life for months on end.

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Trusted Builder with a Strong Referral Network

Most of our work comes from past clients and professionals who’ve seen our work firsthand. That’s because we’re focused on getting the job done and doing it the right way. From our subs to our suppliers, our relationships run deep. And when you work with us, you benefit from that network too.

Looking for a home addition builder near me who answers the phone, shows up on time, and finishes what they start? That’s us.

Home Addition FAQs

How Do I Estimate the Cost of a Home Addition?

Expanding your home is exciting, but it’s always important to talk numbers first to ensure your vision and budget align. Like most home improvement projects, home addition costs vary based on size, complexity, and finishes. Here’s a quick breakdown of what you can expect to invest:

  • Dormer Addition: $275-$350 per sq/ft - Looking to add space without adding a full footprint? A dormer addition is a fantastic way to create more headroom and natural light while expanding your living area. 

  • Kitchen Addition: $350-$500 per sq/ft - The heart of your home deserves some breathing room. A kitchen addition allows you to create an open, welcoming space with spacious storage, entertaining spaces, and more. 

  • Grand Master Suite Addition: $325-$450 per sq/ft - If your goal is luxury and relaxation, a Grand Master Suite is the ultimate upgrade. Think large steam showers and walk-in closets!

What Factors Affect the Cost of a Home Addition?

Beyond square footage, there are a few key factors that impact the final price tag of your home addition:

  • Foundation Work – First-floor expansions require new foundation work, while second-story additions may need structural reinforcement.
  • Structural Tie-Ins – The goal is a seamless look—matching rooflines, materials, and flooring transitions adds to the cost.
  • Permits & Zoning – Each city has specific regulations, and we handle the paperwork for you.
  • Utilities & Systems – Extending plumbing, electrical, and HVAC can add to the cost depending on the scope.

These all contribute to your total investment, along with the architect cost for home addition, which is a smart planning move upfront.

Can I Live in My Home During a Home Addition?

Most of the time, yes! We schedule work strategically to minimize disruption, so you can continue your daily routine with as little interference as possible. If we’re adding a second story or making major structural changes, you might need to crash somewhere else for a bit—but don’t worry, we’ll give you plenty of notice and help you plan ahead. 

Our goal is to keep your home livable, safe, and as dust-free as construction allows, so you can stay comfortable while we transform your space.

Do Home Additions Increase Property Value?

Absolutely! A well-planned custom home addition adds square footage, functionality, and resale value, especially in high-demand areas like Bloomfield Hills, MI. Beyond just increasing your home’s market value, an addition can also make your space more livable and enjoyable for years to come. 

Features like expanded kitchens, luxury master suites, or home offices are highly desirable to future buyers, giving you a great return on investment while enhancing your day-to-day life. Plus, in competitive real estate markets, a thoughtfully designed addition can make your home stand out and sell faster when the time comes.

How Long Does a Home Addition Take?

Small additions take 3-6 months, while larger projects can take 6-12 months, depending on the complexity and scope. Our team will give you a realistic timeline upfront—and then stick to it! 

We also keep you informed every step of the way so there are no surprises. Factors like permits, weather, and material availability can sometimes affect the schedule, but we plan ahead to keep delays to a minimum.

Who Can Design a Home Addition?

Working with an Architect vs. Design-Build Firms

An addition should look like it was always part of your home, not tacked on as an afterthought. That’s why we collaborate with top architects instead of using a one-size-fits-all design-build approach.

With an independent architect, you get:

  • A one-of-a-kind design tailored to your home
  • Better material & finish selections
  • A final result that looks high-end—not cookie-cutter

How LL Custom Contracting Helps You Plan Your Addition

Not sure where to start? No problem. Here’s how we simplify the process from start to finish:

  • We chat about your goals 
  • We connect you with the right architect for your style & budget
  • We provide early cost estimates to avoid budget surprises
  • We build it, while you sit back and watch your home transform

Who Do You Hire to Build an Addition?

Why Hiring a Specialized Home Addition Contractor Matters

Building an addition is not the same as building a new home—it requires expert knowledge in tying into an existing structure without issues like uneven floors, leaks, or awkward transitions.

With LL Custom Contracting, you get a team that:

  • Specializes in custom home additions in Oakland County and surrounding areas
  • Understands local building codes and HOA requirements
  • Prioritizes high-quality construction that lasts decades

How to Choose the Right Builder for Your Project

Before hiring a contractor, ask:

  • Do they have experience with additions on homes similar to yours?
  • Do they work with reputable architects?
  • Can they provide references from past addition clients?

We check all those boxes!

Do you guarantee project timelines?

Absolutely. We offer an On-Time Project Guarantee for qualifying home remodels. While every project is unique, we commit to staying on schedule wherever possible. Some conditions apply, so call us to find out if your project qualifies.

Your Trusted Partner for Home Additions in Oakland County

Choosing the right house addition contractor is one of the biggest decisions you’ll make, and we don’t take that lightly. At LL Custom Contracting, we pride ourselves on being a trusted home addition builder with a track record of delivering stunning, high-quality projects on time and on budget.

We treat our clients like family, because we’re building homes where memories will be made for decades to come.

Let’s talk about your addition!

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