How Much Does a Home Addition Cost in South Florida?
Planning to Expand? Here’s What to Expect
A well-executed home addition can completely change how you live—and dramatically increase your property’s value. Whether you're adding a bedroom, expanding the kitchen, or building a guest suite, it’s one of the smartest ways to gain more space without moving. But how much should you expect to spend on a home addition in South Florida?
At Ediss Construction, we’ve managed countless home expansion projects in Hollywood, Fort Lauderdale, and surrounding areas. In this guide, we break down the most common types of additions, their typical costs, what affects pricing, and how to plan wisely.
What’s the Average Cost of a Home Addition in South Florida?
The average cost for a home addition in South Florida ranges between $200 to $400 per square foot, depending on the size, design, materials, and level of complexity.
| Type of Addition | Size (sq ft) | Avg. Cost Range |
|---|---|---|
| Bedroom | 200–300 | $40,000–$90,000 |
| Bathroom | 60–120 | $25,000–$50,000 |
| Kitchen Expansion | 100–250 | $40,000–$100,000 |
| Garage | 300–500 | $60,000–$120,000 |
| In-Law Suite / ADU | 400–800 | $80,000–$200,000 |
| Second Story Add-On | 500–1,000 | $100,000–$350,000 |
These are general figures. Custom features, structural changes, permitting, and finishes will move your project toward the higher end of the range.
Factors That Affect the Price
Several key factors influence the total cost of a room addition:
1. Type of Room Being Added
Bathrooms and kitchens are more expensive per square foot because of plumbing, cabinetry, tile, and appliances. A bedroom or office generally costs less.
2. Structural Complexity
Second-story additions or projects requiring foundation modifications, roofing changes, or load-bearing wall adjustments will increase labor and engineering costs.
3. Permits and Inspections
South Florida has strict building codes due to hurricane risk and flooding zones. Permit fees and required inspections can range from $1,500–$6,000+ depending on scope.
4. Materials and Finishes
Luxury finishes, custom cabinetry, imported tile, and high-end appliances will raise your total. Labor costs are also affected by the complexity of installations.
5. Site Conditions
Tight access, tree removal, poor soil, or sloped lots can impact the timeline and price. Homes in flood zones or with septic tanks require special planning.
Timeline for a Home Addition
Depending on the type and scale of the addition, your project may take 3 to 6 months, broken down roughly as follows:
- Design & Permitting: 4–8 weeks
- Site Prep & Foundation Work: 2–3 weeks
- Framing & Roofing: 2–4 weeks
- Electrical, Plumbing, HVAC: 2–3 weeks
- Inspections & Finishes: 4–6 weeks
Ediss Construction provides realistic timelines upfront and manages each phase to minimize delays.
Most Popular Additions We Build
Bedroom Suite or Primary Suite Addition
Adding a bedroom—especially with an en-suite bath—adds both functionality and resale value. Many South Florida families choose this option over relocating.
Guest Houses & ADUs (Accessory Dwelling Units)
Perfect for multigenerational living, rental income, or work-from-home setups. Detached guest houses require separate utilities and often a higher budget, but offer excellent long-term ROI.
Expanded Kitchens
The kitchen is the heart of the home. Expanding your kitchen with additional cabinets, seating, or a walk-in pantry enhances both lifestyle and buyer appeal.
Garage Conversions
Turn underused space into a home office, gym, studio, or rental unit. Garage conversions are a cost-effective way to add square footage within your home’s existing footprint.
How to Budget for Your Addition
Get Multiple Bids — but Compare Apples to Apples
Cheapest isn’t always best. Make sure bids are itemized and include everything from permits to finishes. At Ediss, we provide transparent, all-inclusive estimates.
Leave Room for Contingencies
Add 10–15% to your budget for unexpected issues like plumbing rerouting, material delays, or inspection-related changes.
Don’t Skimp on Design
Hiring a qualified contractor with in-house design or architectural support saves time and prevents costly mistakes. We help you visualize and value-engineer your project.
Why Home Additions Make Sense in South Florida
With real estate prices on the rise and limited inventory in cities like Hollywood and Miami, expanding your existing home is often more cost-effective than buying a larger property. A thoughtfully designed addition can add:
- More usable space
- Higher resale value
- Better functionality for today’s lifestyle
- Space for aging-in-place or growing families
Thinking About Expanding Your Home?
Whether you're in the early stages or ready to build, Ediss Construction is here to help. Our design-build approach means we handle everything—from planning and permits to construction and finishes—with craftsmanship and care.
Call Ediss Construction at (305) 904-1936
Or request a free consultation online

Ediss Construction — Helping South Florida Homeowners Build Smarter, Live Better.
