Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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Before
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Before
AfterFast, Reliable Home Additions & ADU Across Coral Springs
Home additions and ADU construction in Coral Springs typically run $45,000-$130,000 for room additions and $90,000-$220,000 for detached units, with most projects requiring permit-triggered structural upgrades on pre-1994 homes. Our crews are dispatched from our South Florida office and serve Coral Springs neighborhoods directly, from Coral Ridge Drive to the Country Club of Coral Springs. Call (754) 254-8065 to schedule a free estimate with a written price before any work begins.
Why Rowan Construction Group Boca Raton Is Coral Springs’s Preferred Home Additions & ADU Company
We’ve completed additions across Coral Springs’s master-planned neighborhoods, from the original 1970s tracts near Wiles Road to the 1980s developments around Riverside Drive. Our customers in Coral Springs leave reviews that mention the same thing: we named the price upfront, documented every visit with photos, and handled the permit inspections without surprises.
Our response time to Coral Springs is same-day for estimates, with scheduling coordinated from our Miami office. We know the Broward County HVHZ requirements by section number, and we’ve worked with enough Coral Springs inspectors to know that a pre-1994 CBS home will trigger specific flags before the permit closes. That local pattern recognition saves our customers weeks on the inspection cycle.
Our Home Additions & ADU team carries background-checked, uniformed crews and a live person answers calls 24/7. Every visit includes a documented photo record as standard, not an upgrade.
Our Home Additions & ADU Services in Coral Springs
ADU Design & Permitting
ADU design and permitting in Coral Springs starts at $45,000-$130,000 for the full package, including the inspection sign-off cycle. We handle the Broward County HVHZ submittal, the tie-beam detail drawings, and the wind-mitigation compliance letter that insurers now require. Because Coral Springs’s housing stock is so uniform, our permit packages for 1970s-80s CBS ranches move through review faster than mixed-age cities, with the strap schedule and load-path documentation pre-listed to avoid cycle delays.
Garage Conversion ADU
A garage conversion ADU in Coral Springs runs $30,000-$80,000, but the real variable is what happens when you open the wall between the garage and the main structure. On pre-1994 homes, that opening almost always exposes the original roof-to-wall connection, and Broward County will require hurricane-clip retrofit before the permit closes. We write that allowance into the contract upfront, with a line-item price for the strap upgrade, so the number doesn’t move once demolition starts.
New Detached ADU
Detached ADU construction in Coral Springs costs $90,000-$220,000, with site prep and utilities as major line items. The flat drainage plain at the eastern edge of the Everglades means the water table sits 18-24 inches below grade during rainy season, so footings and slab work require dewatering and engineered fill that inland contractors often miss. We price that into the written quote before breaking ground, not after the hole fills with water.
Junior ADU & Interior Conversion
Junior ADUs and interior conversions in Coral Springs, typically carved from existing bedrooms or underutilized space, still trigger the same HVHZ scrutiny when walls open. Even a modest interior reconfiguration can expose failed stucco waterproofing at the slab edge or undersized framing at the roof intersection. Our contracts include a structural allowance for these predictable conditions, priced and approved in writing before we touch a stud.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Coral Springs
We source across fifty-plus vetted brands, giving our Coral Springs customers honest numbers rather than inflated allowances. For additions and ADUs, that means KraftMaid and Wellborn cabinetry, Cambria and Caesarstone countertops, and Kohler and Toto fixtures specified to the room size and use case. We stock GAF and CertainTeed roofing materials locally for the roof-assembly work that permits on pre-1994 homes almost always require. The brand is named on the written quote, not “or equivalent.”
Common Home Additions & ADU Problems We See in Coral Springs Homes
- Missing hurricane straps at the roof-to-wall connection. Original gable roofs on 1970s-80s CBS homes in Coral Springs were built before HVHZ tie-down schedules existed. Opening any wall for an addition triggers a Broward County inspector to flag this, and the permit won’t close until it’s retrofitted. We pre-list the strap schedule in our scope of work.
- Failed stucco waterproofing at the slab edge and window openings. The original moisture barrier behind Coral Springs stucco has often degraded after forty-plus years of subtropical wet-dry cycling. Once the wall is open, we find saturated block and corroded lintels that must be addressed before new framing or drywall goes in.
- Undersized rafter-to-tie-beam connections. The repetitive tract construction in Coral Springs means we see the same deficient connection detail from neighborhood to neighborhood. The load path from the existing roof into the new addition requires engineering review, and we submit that package with the initial permit application, not as a correction.
- High water table complicating detached ADU foundations. The 18-24 inch seasonal water table on Coral Springs’s eastern edge means standard footings and slab pours require dewatering, engineered fill, and sometimes post-tensioned slabs. Generic contractors quote standard foundations, then issue change orders when the excavation floods.
Pricing for Home Additions & ADU in Coral Springs, FL
We put the number in writing before anyone picks up a tool. Under Clause 1 of The Haven Standard, every Coral Springs project receives a flat written price with a written scope and written warranty. Here’s what our additions and ADU work runs in this market:
| Service | Price Range in Coral Springs |
|---|---|
| Home Addition (room addition, tie-beam retrofit likely) | $45,000-$130,000 |
| ADU Construction (detached, site prep & utilities) | $90,000-$220,000 |
| Garage Conversion ADU | $30,000-$80,000 |
| ADU Design & Permitting (permit package and inspection sign-off cycle) | $45,000-$130,000 |
| Impact Window Installation (opening enclosure on addition) | $8,000-$25,000 |
| Roof Replacement (required when addition opens old roof assembly) | $8,000-$20,000 |
These ranges reflect the structural allowances we build in for Coral Springs’s pre-1994 housing stock. The final price stays within a few percent of the agreed number because no work proceeds on a change until the change order is signed. That’s the administrative discipline Haven acquired Rowan for in 2007, and it’s how we’ve kept 4,000-plus projects on budget.
Bring a competitor’s written estimate and we’ll review it line by line at no charge. Call (754) 254-8065 for your free estimate.
We Also Serve Cities Near Coral Springs
Our crews work throughout Broward County, including Home Additions & ADU in Coral Springs and neighboring Margate, Coconut Creek, Pompano Beach, and Deerfield Beach. The same HVHZ requirements and pre-1994 housing patterns apply across these cities, and we carry the same permit relationships and inspection protocols to each job site.
Serving Coral Springs, FL - Our Local Coverage Area
We’re based in the Coral Springs area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Home Additions & ADU in Coral Springs
Because Broward County’s HVHZ permit inspection on a pre-1994 Coral Springs home almost always triggers mandatory wind-mitigation retrofits, specifically hurricane straps and tie-beam upgrades, that weren’t visible until demolition. We prevent this by building structural allowances into our written contract based on the home’s year and construction type, then pricing any surprise in a signed change order before we touch it. Call (754) 254-8065 for an exact quote - estimates are free.
Yes, garage conversion ADUs in Coral Springs require a building permit through Broward County, and the inspection will include HVHZ compliance review of the existing structure’s roof-to-wall connections. The permit won’t close without approved hurricane straps and proper load-path documentation. We handle the full permit package and inspection cycle as part of our service. Call (754) 254-8065 to schedule your free estimate.
Original roof-to-wall straps that don’t meet current HVHZ schedules, degraded stucco waterproofing at the slab edge with saturated block behind it, and undersized rafter-to-tie-beam connections. On a 1979 CBS ranch off Coral Ridge Drive, our crew found all three conditions plus a failed moisture barrier that required flashing replacement before the new subfloor could go in. We wrote the change order, priced the repair, and got inspector sign-off before hanging drywall. Call (754) 254-8065 for an exact quote - estimates are free.
Yes, but the footing and slab design must account for the 18-24 inch seasonal water table on Coral Springs’s eastern drainage plain. Standard foundations flood during excavation; we engineer dewatering systems and specify post-tensioned or engineered-fill slabs that Broward County approves for these conditions. That line item is priced in the written quote before breaking ground, not added later. Call (754) 254-8065 for an exact quote - estimates are free.
We inspect first, write allowances into the contract based on the home’s age and construction type, and require a signed change order before any unplanned work proceeds. On pre-1994 Coral Springs CBS homes, the hidden scope is predictable enough that our contracts include line-item prices for strap retrofits, tie-beam upgrades, and stucco moisture repair. The 365-Day Done Right Promise backs every project: if it’s not done right, we make it right. Call (754) 254-8065 for an exact quote - estimates are free.
Ready to expand your Coral Springs home with a written price before work starts? Call (754) 254-8065 to schedule your free estimate. We’ll review your plans, inspect the existing structure, and deliver a flat written quote with allowances for the conditions your permit inspection will find. No work begins until you approve the number in writing.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Coral Springs since 2007.