Home Addition Miami —
Licensed Room Addition Contractor Since 2006

We build room additions in Miami from the foundation up — second floors, garage conversions, great rooms, and ADUs. Engineered, permitted, and built by one in-house crew under a single contract. A fixed price before ground is broken, and an addition that matches the existing house.

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What are you remodeling?
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160 sq ft · approximate
40160320500+
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Thank you. Estimate locked in.
A senior PM will review your scope and email a line-item budget within one business day. Gil reads every submission personally.
No SMS spam. We don't share, sell, or resubmit your info. One follow-up call, that's it.
3,000+
Homes & Projects
Across South Florida
20+
Years experience
Licensed CGC1530409
4.8★
Google rating
Verified homeowner reviews
0%
Financing available
18 months · $0 down
100%
HVHZ compliant
Hurricane-rated, permit-pulled
$2M
Insured
General liability coverage

What's in a Miami home addition — shown, not listed

Six scopes of work, one home addition contractor, one CGC1530409 permit. Everything below is in your written contract before ground is broken.

Site Prep & Foundation

Site Prep & Foundation

Survey, layout, and a slab or stem-wall foundation engineered for South Florida soil — formed, poured, and inspected before a single stud goes up. Every home addition we build starts with Miami-Dade's structural standards from the ground up.

Framing & Roof Tie-In

Framing & Roof Tie-In

Walls, openings, and the hardest part of any addition: tying the new roofline into the existing structure so it reads as one house, not a patch. Roof pitch, overhangs, and tile matched to the original at the design stage.

Impact Windows & Doors

Impact Windows & Doors

HVHZ-rated, Miami-Dade NOA products on every opening. The addition meets the same hurricane code as new construction — sliders, windows, and exterior doors all impact-rated and documented for your insurer.

MEP & Insulation

MEP & Insulation

Electrical, plumbing, and HVAC extended — or upsized where the existing systems cannot carry the new load — then insulated so the room stays cool through a Miami August. One project manager coordinates every trade under one permit.

Interior Finish

Interior Finish

Drywall, flooring, paint, and trim matched to the existing house, plus cabinetry or built-ins where the plan calls for them. The finish line is a room you cannot tell was added later.

Permits & One-Year Check

Permits & One-Year Check

We pull every permit under CGC1530409, walk every inspection ourselves, and hand you the closed permit card at the end. An unpermitted addition is not an asset — it is a defect you sell at a discount. We come back at the one-year mark to confirm everything still works as built.

Recent home additions in South Florida

Real projects, completed across Miami-Dade, Broward, and Palm Beach County. Click any card for the full case study.

Oakland Park Front-Facing Family Addition
Oakland Park
Oakland Park Front-Facing Family Addition
320 sq ft · 16 wks
Fort Lauderdale Side-Yard Room Addition
Fort Lauderdale
Fort Lauderdale Side-Yard Room Addition
360 sq ft · 18 wks · in progress
Kendall Detached Family Room
Kendall
Kendall Detached Family Room
440 sq ft · 20 wks · in progress
West Delray Beach Vaulted Great Room Addition
West Delray Beach
West Delray Beach Vaulted Great Room Addition
580 sq ft · 22 wks · in progress
Northwest Miami Full Second-Story Addition
Northwest Miami
Northwest Miami Full Second-Story Addition
600 sq ft · 26 wks · in progress
See more additions →

Homeowner's guide to home additions in Miami

A room addition is the way to get the house you need without giving up the street you love. In Miami that trade matters more than almost anywhere: lots are tight, inventory is thin, and moving costs six figures before you've gained a single square foot. Built right, a home addition in Miami adds permitted, insurable living area — and in this market, permitted square footage is value.

What a room addition means in Miami-Dade

A room addition here is new construction attached to your home, and Miami-Dade County treats it that way: engineered foundation, HVHZ wind-load design, impact-rated openings, and inspections at every stage. We design, permit, and build under one license, CGC1530409 — one name on every drawing, permit card, and warranty.

Home addition contractor in Miami — licensed vs. unlicensed

The difference between a licensed general contractor and an unlicensed crew doing your home addition is not just paperwork. A licensed GC carries the permit in their name, which means they are legally responsible for the structural engineering compliance, the wind-load calculations, the MEP rough-in, and every inspection that follows. An unlicensed crew has no permit and no accountability when the addition fails a title search. Home addition contractors in Miami under FL CGC1530409 are required to carry general liability insurance, pull every permit, and have an active license verifiable at DBPR. We make all of ours clickable in the "boring stuff" section below.

Types of room additions we build

  • Second-floor additions — Adding a full or partial second floor to a single-story home. Requires structural engineering to verify the existing foundation and framing can support the load.
  • Garage conversions — Converting an attached or detached garage into conditioned living space.
  • Great room addition — Expanding the main living area into the backyard or side yard.
  • Primary suite addition — Adding a master bedroom with en-suite bathroom.
  • ADU / accessory dwelling unit — Subject to Miami-Dade zoning rules on lot coverage, setbacks, and maximum size.

What drives the cost of a room addition in Miami

  • Room addition — from $100,000
  • Second-story addition — from $250,000
  • Garage conversion to an ADU — from $80,000
  • New-build ADU — from $150,000

Where a project lands above those starting numbers comes down to structural complexity, MEP scope, finish level and the permit timeline. Every project is a fixed line-item contract — we explain every line at the estimate, nothing hidden, nothing estimated in ranges that grow after you sign.

The permit process for room additions in Miami

A home addition in Miami requires a full building permit package: architectural drawings, structural engineering calculations, energy compliance documentation, and a survey. We handle every step — you don't visit a building department.

Home addition contractor in Miami — what to verify

Before signing any room addition contract in Miami: verify the FL CGC or CG license is active at DBPR, request a current Certificate of Insurance, confirm the contractor pulls the permit in their own name. A contractor who asks you to pull your own permit is telling you something important.

Where we work — home additions in Miami and South Florida

We build room additions throughout Miami-Dade, Broward, and Palm Beach County. Second-story additions and garage conversions in Coral Gables, Pinecrest, Kendall, and North Miami. Home addition South Florida projects in Fort Lauderdale, Hollywood, West Palm Beach, and Boca Raton. FL CGC1530409 — one license, all three counties.

How a home addition actually gets built here

Three stages, about eleven months end to end on a typical addition: three months to get plans and permits in hand, four to build the shell, four to finish the inside. Every stage is written into the contract, and we don't move on until you sign off on the previous.

Stage 01
3 months
Permit & Plans
Architectural drawings, structural engineering, energy compliance and the survey, then city submittal and plan review. NOA verification on every impact opening. The permit is pulled in our name and managed entirely by our team — you don't visit a building department.
Stage 02
4 months
Build the Shell
Slab poured, walls framed, the roofline tied into the existing house, impact windows and doors set — inspected at every hold point.
Stage 03
4 months
Interior Finishes
Electrical, plumbing and HVAC roughed in and inspected, then insulation, drywall, floors, paint and trim matched to the house. Punch list closed before hand-off, and we come back at day 365.
Rated 4.8★ across
240 reviews
Reviewed on
Google Reviews Houzz BBB Accredited A+ Angi Yelp
★★★★★on Google
Finished a complete remodel earlier this year with Miami First! The final product was amazing! If I had any question or concern, they were on top of it and Joey has no problem if I reach out with any concern. Thank you!
Frank Kendrix2026
★★★★★on Google
Complete kitchen remodel. From beginning demo to end result was within 5 weeks. The workers showed up on time and took pride in their workmanship. No complaints. I highly recommend.
Abraham Zuniga2026
★★★★★on Google
We had a good experience with Miami First Remodeling, they did a good job in our kitchen and floors, it took few months but we are satisfied and happy with the project they did, a special thanks to Joey for being cordial and nice with us all the time, he always answered our questions and concerns very fast.
Natasha Parada2026
★★★★★on Google
We were very happy with their services. They were very professional throughout the entire process of our home addition. The manager Gil was here weekly checking on the project and the entire crew was amazing. Very professional company.
Martha Cabrera2026
★★★★★on Google
Miami First Remodeling is a great company! They offer affordable prices, are punctual, and very professional throughout the entire process. Their showroom is excellent, with many options and great inspiration for your project.
Alecio Schmit2026
★★★★★on Yelp
Miami First Remodeling was so easy to work with. They have a project manager, designer, supervisors, field crew, and a showroom, so everything was organized and simple. Before this, I used handymen for my projects and I will never do that again. Working with a real remodeling company made a huge difference. I love my two new bathrooms and I am very happy with the work.
Natalia V.2026
★★★★★on Yelp
We hired Miami First Remodeling for our kitchen and bathroom renovation. The kitchen looks amazing, especially the cabinets came out beautiful. The team was easy to work with and finished everything nicely. We are very happy with the results!
Boonyarit H.Dania Beach · 2026
★★★★★on Yelp
I love my new kitchen! The team turned out my older kitchen, laundry room and half bath into a beautiful, functional space that fits our home so much better. I also value the craftsmanship from the different trades involved. The team showed real leadership and attention to detail. I highly recommend this company!
Giulia G.2026
★★★★★on Yelp
We hired Miami First Remodeling to renovate our kitchen, and they did an excellent job. They used high-quality materials and offered a stunning selection of countertops. I highly recommend them to anyone planning a remodel!
Marie L.Fort Lauderdale · 2025
★★★★★on Houzz
Selling our house and my realtor said we'd get 40k more if we refreshed the entry, kitchen, and primary bath. Miami First scoped it fast, we prioritized the highest-ROI items, and they finished in 5 weeks. House sold in 6 days for over asking. Best money we spent on the sale.
Dorothy Cantrell2026
★★★★★on Houzz
Converted our detached garage into a mother-in-law suite for my dad. Full kitchenette, bathroom, closet, split HVAC. Juan mapped out the permits, engineering, and inspections upfront so we knew what we were walking into. Nothing surprised us at closeout. My dad has his independence back and we sleep better knowing he's on the property.
Anna Green2026
★★★★★on Houzz
I'm so happy with how my kitchen turned out! The team at Miami First Remodeling made the whole process easy, and they brought my ideas to life better than I expected. The work was on time and professional, and they really cared about the details. Looking forward to start remodeling my bathroom as well very soon!
Marcela Gómez2025
See more reviews →

Home addition questions, answered straight

The questions we hear most often during the first consult. If yours isn't here, Gil himself reads every form submission.

Yes — always. Any addition of conditioned square footage requires architectural plans, a structural engineering stamp, a building permit, and staged inspections. An unpermitted home addition is a defect you disclose at resale.

Yes — matching the existing house is the standard, not an upgrade. Roof pitch, tile profile, overhang depth, exterior finish, interior flooring, trim profile, and ceiling height are all matched at the design stage.

For ground-floor additions where work is external — yes, most families stay home throughout. For second-floor additions that require opening the ceiling for the staircase connection, we advise on displacement at the design stage.

An accessory dwelling unit is a self-contained living space on the same lot as the primary home. Miami-Dade allows ADUs subject to zoning rules. We assess feasibility as the first step of every ADU consultation, before any design cost is incurred.

Yes — Fort Lauderdale, Hollywood, Pembroke Pines, West Palm Beach, Boca Raton, and Delray Beach. Home addition South Florida — FL CGC1530409.

Search the contractor's name or license number at myfloridalicense.com. The license status, type, and expiration are public record. We are FL CGC1530409 — active and verifiable.

The boring stuff —
that matters

Four things every Florida homeowner should verify before signing a remodeling contract. We make ours public.

Florida DBPR
Florida Cert. General Contractor — CGC1530409
Insurance
General Liability Certificate — $2M coverage
Hurricane-ready
Miami-Dade NOA on all impact products
BBB Accredited
BBB Accredited Business · A+ since 2008
FINANCING OPTIONS
Start your remodel with $0 down*
Up to 18 months at 0% APR*

Spread the cost of your renovation over time with financing options from LendKey, Hearth, Slice by FNBO, and HFS Financial.

Qualified homeowners may have access to promotional 0% APR plans and longer-term monthly payment options. We’ll walk you through the available choices during your estimate with no obligation to finance.

LendKey
Hearth
Slice by FNBO
HFS Financial
Keep exploring home additions in Miami

Go deeper on the kinds of additions we build — or see the finished projects in the gallery.

Full GalleryFull Gallery Second-Floor AdditionsSecond-Floor Additions Garage ConversionsGarage Conversions SunroomsSunrooms ADUs & Guest HousesADUs & Guest Houses
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Msg frequency varies. Msg & data rates may apply. Reply STOP to cancel, HELP for help. Privacy Policy · SMS Terms

No SMS spam. We don't share, sell, or resubmit your info. One follow-up call, that's it.