Home Additions & ADU in Kendall - One Fixed Price, Permits Handled

Fast, Reliable Home Additions & ADU Across Kendall

Home additions and ADU construction in Kendall run $45,000-$130,000 for room additions and $90,000-$220,000 for detached ADUs, with most projects clearing permitting in 8-14 weeks under Miami-Dade County’s High-Velocity Hurricane Zone rules. Our crews dispatch from the South Florida office and serve Kendall directly, from Kendale Lakes to the Dadeland corridor. Call (786) 321-4970 to schedule your free estimate.

Call (786) 321-4970

We’re familiar with the concrete block and stucco homes that dominate Kendall’s neighborhoods, many built between the late 1960s and early 1990s with post-Andrew repairs layered on top. That two-generation construction history means every addition or ADU here encounters hidden conditions that out-of-market contractors miss. Our Home Additions & ADU team has walked these homes, pulled these permits, and documented the compliance gaps before walls close up.

Why Rowan Construction Group Miami Is Kendall’s Preferred Home Additions & ADU Company

We’ve delivered projects across Kendall since Rowan Construction Group was founded in 2007, and our documented photo record on every visit gives homeowners evidence of what we found and what we did - not a verbal report they have to trust. Our 4,000-plus project history includes additions and conversions throughout Miami-Dade, with the written price before any work starts that our customers screenshot and compare.

Kendall homeowners read the three-star reviews, and they call us because we show our work. Our crews are background-checked and uniformed; a live person answers calls 24/7; and our license number is on every page, every proposal, and every permit application. The 365-Day Done Right Promise is printed on every document, backed by The Haven Standard terms page, not an asterisk.

Response time to Kendall is same-day for initial consultations, with written estimates typically delivered within 48 hours of our site visit. We know the Miami-Dade Building Department’s plan review timelines, the NOA database search process, and which inspectors flag which conditions - local knowledge that prevents the re-submittal delays that stall projects for weeks.

Grant Rowan built this company on Clause 1 of the Haven Standard: the price is written before anyone starts. That discipline, acquired by Haven and applied across every Rowan trade, is why our projects finish within a few percent of the agreed number. No change proceeds without a signed change order. Ever.

Our Home Additions & ADU Services in Kendall

ADU Design & Permitting

Every Kendall ADU must clear Miami-Dade’s HVHZ product-approval system before a shovel hits the ground. We handle the Notice of Acceptance verification for impact windows, doors, connectors, and roofing assemblies - the documentation standard Broward County contractors routinely lack. Our design team produces permit-ready plans that include HVHZ load calculations, drainage details for Kendall’s flat, high-water-table terrain, and tie-down schedules that satisfy county inspection on first walk. ADU construction in Kendall typically runs $90,000-$220,000 depending on size, utility connections, and foundation requirements.

Garage Conversion ADU

Garage conversions are the most common ADU type we build in Kendall, and they’re where hidden structural issues surface most often. We were called to a 1978 CBS ranch near Kendale Lakes where the homeowner wanted a garage conversion ADU, and once we opened the wall we found the original 1980s strap tie-downs and a 1994 emergency patch job that had never been re-nailed to a current schedule - all of which had to be upgraded to HVHZ load-bearing spec before the county would issue inspection sign-off. We pulled the permits, documented the NOA numbers for the impact windows and garage door, and walked the homeowner through the change order line by line so the compliance scope was in writing before we closed up the walls. The finished ADU passed final inspection on the first walk, and the homeowner’s wind-mitigation report now reflects the upgraded roof-to-wall connections. Garage conversion ADUs in Kendall run $30,000-$80,000.

New Detached ADU

Detached ADUs in Kendall face site constraints that inland Florida markets don’t: the seasonal water table rises to within inches of grade during the June-October rainy season, making footer excavation and drainage installation substantially more complex. We design for Miami oolite limestone substrate, specify corrosion-resistant connectors for salt-laden southeast breezes, and document every drainage detail for county inspection. The flat terrain means no natural grade for runoff - engineered drainage is mandatory, not optional, and we itemize it in the written quote.

Junior ADU & Interior Conversion

Junior ADUs and interior conversions in Kendall’s older homes - particularly the 1970s-80s CBS stock near Snapper Creek and the neighborhoods off SW 88th Street - often require electrical service upgrades and separate metering that the original construction never anticipated. We evaluate the main panel capacity, the feeder routing, and the HVHZ impact-rated separation requirements during our initial site visit, then document what we found with photos you receive before the estimate. No surprises after walls open.

Room Additions & Second Story Additions

Room additions in Kendall must tie into existing structure that may carry post-Andrew emergency repairs of unknown quality. We inspect the existing roof deck, wall framing, and tie-downs before quoting, because HVHZ requires full deck inspection and often replacement before any new roofing NOA can be applied - a line-item cost that catches both homeowners and out-of-county contractors off guard when pulling permits at the Miami-Dade Building Department. A typical room addition in Kendall runs $45,000-$130,000.

Sunrooms & Enclosed Patios

Sunrooms and enclosed patios in Kendall face the same HVHZ requirements as full additions: impact-rated openings, proper tie-downs, and Miami-Dade NOA documentation for every exterior product. The salt-laden air accelerates corrosion of exposed hardware, so we specify marine-grade fasteners and document the specification in your written scope. These projects typically fall within the $45,000-$130,000 range depending on size and systems integration.

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Trusted Brands We Service in Kendall

We source across fifty-plus vetted brands, giving the written quote honest numbers rather than inflated ones. For Kendall’s ADU and addition projects, we regularly specify Toto fixtures for secondary bathrooms, Delta and American Standard plumbing for kitchen and bath rough-in, and Schluter waterproofing membranes for wet-area protection - all with Miami-Dade Notice of Acceptance documentation where HVHZ requires it. We stock local inventory for fast turnaround on standard items, and we verify NOA status before any special-order product hits the job site. The customer receives the NOA numbers in their project documentation, not a promise that someone will look them up later.

Common Home Additions & ADU Problems We See in Kendall Homes

• Out-of-county contractors bid with Broward specs and non-NOA products. The permit stalls at Miami-Dade plan review, and the homeowner eats the re-submittal delay while the contractor scrambles for compliant documentation. We verify NOA status before quoting.
• Post-Andrew re-roofed homes carry original skip-sheathing or under-nailed decks. HVHZ requires full deck inspection before any new roofing NOA can go on, and the deck replacement never appears on the cheap quote. We inspect and itemize it in writing.
• Corroded metal connectors and exposed rebar from salt-laden southeast breezes. These get buried behind new finishes without inspection, leaving the addition structurally non-compliant and the insurance claim vulnerable later. We document every connector with photos before walls close.
• Original 1980s tie-downs and emergency patches that pre-date current HVHZ minimums. These surface during permitted work and must be upgraded to current load-bearing spec. We find them during our initial evaluation, not during inspection.

Pricing for Home Additions & ADU in Kendall, FL

We Also Serve Cities Near Kendall

Our crews serve Kendall locally and also work across Miami-Dade County, including Miami, Brownsville, Miami Beach, and Miami Springs. Dispatch and scheduling are coordinated from our South Florida office, with local crews deployed to each market.

FAQs - Home Additions & ADU in Kendall