Home Additions · Miami-Dade · Broward · Palm Beach
Home Additions in Miami — More Space, Properly Permitted
Bedroom additions, master suites, in-law suites, garage conversions, and second-story additions. Every home addition requires a permit. We handle it — structural engineering when required, full county inspection process.
Addition Types
What We Build
Every addition requires a permit and structural assessment. We start with what's feasible for your home before designing what you want.
Bedroom Addition
Single or double bedroom addition off the existing structure. Requires structural connection to existing foundation and framing, electrical, HVAC extension, and full permitting.
Master Suite Addition
Bedroom plus full bath. Most complex and highest-value addition type. Requires plumbing rough-in, structural work, and potentially HVAC upgrade depending on system capacity.
In-Law Suite / ADU
Attached or detached accessory dwelling unit. Florida ADU regulations vary by municipality. May require separate utility connections. We assess zoning before recommending scope.
Garage Conversion
Converting an existing garage into living space. Requires insulation, HVAC extension, flooring, electrical upgrade, and permit. Does not require the same structural work as a ground-up addition.
Sunroom / Florida Room Addition
Enclosed patio conversion or new construction with large windows. Can be conditioned (full HVAC) or unconditioned. Permits required for all new construction.
Second Story Addition
Most complex addition type — requires structural engineering review of existing foundation and framing. Not all South Florida homes can support a second story addition without foundation reinforcement.
What to Expect
Home Additions Take Longer Than You Think — and That's Normal
Miami-Dade permit processing takes 3–6 weeks. Structural engineering review, if required, adds another 2–4 weeks. A bedroom addition typically runs 4–5 months from signed contract to final inspection. A master suite addition: 5–7 months.
We build these timelines into every project schedule upfront — not as a surprise after you've committed. If a contractor promises you a 6-week addition in Miami-Dade, ask them how they're going to get through permit approval in that timeframe.
Ready to discuss your addition?
We assess feasibility, zoning, and permit requirements before we design anything. Free initial consultation.
(786) 983-7928Common Questions
Frequently Asked Questions
Do I need a permit to add a room in Florida?
Yes — any addition that adds new living space requires a full building permit. This includes structural, electrical, plumbing, and HVAC permits as applicable. Miami-Dade typically takes 3–6 weeks to process. Broward and Palm Beach run 1–3 weeks. An unpermitted addition is a code violation that surfaces at resale and can affect mortgage approval and insurance coverage.
How long does a home addition take in Miami?
A bedroom addition: 3–5 months from signed contract to final inspection, including permit time. A master suite addition: 4–6 months. Permit processing accounts for 4–8 weeks of that timeline. We build the permit timeline into every project schedule from day one — no surprises when the permit takes longer than expected.
Does adding a room increase property taxes in Florida?
Yes — adding square footage increases the assessed value of your home, which increases property taxes. The exact impact depends on your county's assessment methodology and the current Homestead Exemption cap (which limits annual assessed value increases to 3% or CPI, whichever is lower, for primary residences). New construction is typically assessed at full market value. We recommend checking with your county property appraiser's office for specific projections.
Can I add a second story to my house in South Florida?
Possibly — it depends on your existing foundation and framing system. Concrete block construction common in South Florida is generally capable of supporting an addition if the existing foundation is in good condition. Wood-frame structures require more careful evaluation. We require structural engineering review before committing to any second story addition. If the existing structure can support it, the project is feasible. If it can't, we'll tell you that before you've spent money on permits.
What's the difference between an addition and an ADU?
A home addition is attached to and part of the main dwelling — it expands the existing living space. An ADU (Accessory Dwelling Unit) is a separate, self-contained living unit on the same property — either attached or detached — with its own kitchen, bath, and entrance. Florida municipalities have varying rules on ADUs: some permit them freely, others restrict or prohibit them. We check zoning compliance before proposing any ADU scope.
Will a home addition affect my homeowner's insurance?
Yes — an addition increases your home's replacement cost, which should trigger an update to your dwelling coverage limit. Notify your insurer when construction begins. After completion, provide the final permit documentation and request a coverage review. Failing to update coverage after an addition means you're underinsured on the new square footage.
Get a Free Home Addition Consultation
We assess feasibility, zoning, and structural requirements — and give you an honest picture of timeline and scope before you commit to anything.
Call (786) 983-7928