Outgrowing your home happens slowly—until one day it’s undeniable. Maybe your kitchen feels crowded every time the family gathers, or your kids’ toys have taken over the living room. Perhaps you’ve started working from home and need a dedicated office, or you’re caring for aging parents and need more accessible space. At MOSS Building & Design, we've heard it all.
Whatever the reason, expanding your home might be the right move. A thoughtfully designed addition can give you the extra room you need—whether it’s a larger kitchen, a family room, an extra bedroom, or even a full second story—all without leaving the neighborhood you love.
But one of the first questions homeowners ask is: “How much will it cost?”
The truth is, costs vary depending on the type of addition, the size of the project, and the finishes you choose. At MOSS Building & Design, we guide families through the budgeting process, so they understand their options clearly—before signing a contract.
Typical Costs for Home Additions
Here’s a high-level look at what you might expect for different types of additions:
Type of Addition Typical Size Estimated Cost Range Average Timeline Notes Kitchen Bump-Out/Small Addition 100-200 sq. ft. $25,000-$65,000
Total: 3-5 months
Design & Permitting: 4-8 weeks
Construction: 8-12 weeks
Ideal for kitchens, breakfast nooks, or mudrooms Single-Room Addition 200-400 sq. ft. $50,000-$100,000
Total: 4-6 months
Design & Permitting: 6-10 weeks
Construction: 10-14 weeks
Often used for family rooms, offices, or playrooms Garage Addition 400-600 sq. ft. $60,000-$120,000
Total: 4-7 months
Design & Permitting: 6-10 weeks
Construction: 10-18 weeks
Detached or attached, can include storage or loft space Second-Story "Pop-Top" Addition 800-1,500 sq. ft. $150,000-$300,000+
Total: 6-10 months
Design & Permitting: 4-8 weeks
Construction: 12-20 weeks
Adds full living space without losing yard; higher structural requirements Whole-Wing Addition 500-1,000 sq. ft. $100,000-$250,000+
Total: 8-14 months
Design & Permitting: 8-16 weeks
Construction: 24-40 weeks
For multigenerational living, guest suites, or large entertaining spaces
What Impacts the Cost?
Several factors influence where your project lands within these ranges:
- Structural changes – Removing or reinforcing load-bearing walls, foundation work, or adding a second story
- Finishes and fixtures – Countertops, cabinetry, flooring, and lighting selections
- Utilities – Relocating or expanding plumbing, electrical, or HVAC systems
- Permits and zoning – Each county has specific requirements that may add to costs
How MOSS Helps You Budget with Confidence
Every homeowner deserves clarity before making a major investment. That’s why MOSS makes it easy to get started—with no upfront costs. Our step-by-step approach helps you explore your options, understand potential budgets, and see your vision take shape before making any financial commitment.
1️⃣ Discovery Call – Explore your goals and budget with a Project Developer
2️⃣ In-Home Appointment – Our team visits your home to scope out the space and begin crafting solutions that fit your goals, layout, and lifestyle
3️⃣ Project Presentation – Review carefully considered solutions that outline how our team would approach your project
4️⃣ Contract & Deposit – Sign with confidence, knowing your $2,500 deposit is refundable through your first design review meeting
Expanding your home is an investment not only in square footage but in the way your family lives together. With a clear process, transparent budgeting, and expert guidance, you can plan your addition with peace of mind.
Investing in Your Home's Future with Confidence
Before you commit to a project as significant as a home addition, understanding the costs, benefits, and having a clear plan is crucial. At MOSS Building & Design, we ensure you have all the information and support needed to make informed decisions that enhance your home and lifestyle.
Ensure a Smooth Start with Our Personalized Guidance
At MOSS Building & Design, understanding your unique needs is our priority. We tailor our approach to fit your lifestyle and aspirations, ensuring every decision aligns with your vision. Our expert team makes the remodeling journey seamless and stress-free, from initial consultations to the final walkthrough.
Transparent Communication for Peace of Mind
Budgeting for an addition doesn’t have to be overwhelming. With MOSS, you’ll have full transparency at every step. Using MOSS Online, our digital project management portal, you’ll have access to your project’s schedule, selections, and budgets, ensuring you’re always informed and in control.
Partner with Community-Driven Experts
As part of the MOSS family, you’ll not only receive quality craftsmanship but also ongoing commitment and support. Our longstanding presence in the community means we are deeply invested in delighting our neighbors with spaces that enrich their lives.
Ready to explore what's possible? Let MOSS guide you to a smart, stress-free start.
