Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Home Additions & ADU Across Coral Springs
A home addition or ADU in Coral Springs typically costs $45,000-$130,000 for a room addition, $90,000-$220,000 for a detached ADU, and $30,000-$80,000 for a garage conversion, with most projects taking 3-6 months from permit to final inspection. Rowan Construction Group has delivered 4,000-plus projects since 2007, every one with a written price before work started and a documented photo record when the crew left. Our crews serve Coral Springs from our South Florida dispatch office, and we know the city’s master-planned subdivisions, its strict building department, and the dual approval track that every addition here must clear. Call (754) 254-7676 to schedule your free estimate.
Why Rowan Construction Group Fort Lauderdale Is Coral Springs’s Preferred Home Additions & ADU Company
We have worked in Coral Springs long enough to know that the city’s building department enforces code harder than Margate or Tamarac. That matters when you’re adding square footage. An unpermitted prior repair discovered during our permit review can trigger mandatory full remediation before your addition moves forward. We pull permits fast, and our scopes are written to pass inspection the first time.
Our Coral Springs customers leave reviews that mention the same things: the written price arrived before anyone picked up a tool, the photo record showed exactly what was done, and the final bill stayed within a few percent of the number they agreed to. That discipline comes from The Haven Standard, which Haven acquired Rowan for in 2007 and which we still operate under today.
Calls are answered by a live person 24/7. Crews are background-checked and uniformed. Grant Rowan, our owner, reviews every addition and ADU scope over $50,000 personally before it goes to permit. Dispatch and scheduling are coordinated from our Miami office, but the crew that arrives at your Coral Springs home lives and works in Broward County.
We also offer a Free Second Opinion on any written estimate - bring a competitor’s quote and we will review it line by line at no charge.
Our Home Additions & ADU Services in Coral Springs
ADU Design & Permitting
Every Coral Springs ADU must clear two gates: your subdivision’s recorded HOA architectural review, then the city’s permit set. We handle both. Our design team prepares the architectural drawings, structural calcs, and MEP plans that Coral Springs building officials expect, and we submit the HOA packet simultaneously so neither queue stalls the other. A typical detached ADU in Coral Springs runs $90,000-$220,000 depending on square footage, finish level, and whether the site requires slab work above the high water table.
Garage Conversion ADU
Garage conversions are the most common ADU we build in Coral Springs, especially in the 1980s CBS subdivisions off Coral Springs Drive and Sample Road where the original two-car garage is underutilized and the slab is already poured. The catch: that slab often sits on a high water table, and open trenches for bath rough-ins take on groundwater. We pulled a garage-conversion ADU scope in a 1980s CBS subdivision off Coral Springs Drive, where the original slab sat on a high water table and our open trench for the new bath rough-in kept taking on groundwater. We ran our own generator and pump, poured a thickened slab edge for the load-bearing wall we removed, and passed the city’s inspection sign-off without the standing-water delays we see on older Margate lots. A garage conversion ADU in Coral Springs typically runs $30,000-$80,000.
New Detached ADU
A new detached ADU in Coral Springs means footers, slab, framing, and full utility connections on a lot that may have been graded for drainage in the 1970s and never touched since. The high water table in western Broward makes footer excavation a wet job, and we price that in from the start rather than discovering it mid-trench. We also coordinate with the city’s utility department for sewer and water tap fees, which in Coral Springs are set by ordinance and non-negotiable. Our written quote includes every line item.
Junior ADU & Interior Conversion
A Junior ADU - a self-contained unit within the existing footprint, typically 500 square feet or less - avoids the site work of a detached unit but still requires the same permit rigor. In Coral Springs’s older CBS homes, we often find the original electrical panel is undersized for a second kitchen and bath, and the HVAC was never designed for zoned cooling. We identify those constraints in the first site visit and write them into the scope, not into a change order later.
Room Additions
Room additions in Coral Springs, whether a master suite expansion or a family room bump-out, must tie into existing CBS walls and often require roofline modifications that expose the original hurricane connections. On any pre-1992 home, we inspect those connections before we price the job. Adding onto a pre-1992 CBS house without retrofitting hurricane straps and roof-to-wall connections blocks the final inspection sign-off and can void the builder warranty on newer phases. We have seen it happen on Ramblewood South homes where the owner skipped the retrofit to save $4,000 and lost six weeks to remediation.
Second Story Additions, Sunrooms & Enclosed Patios
Second-story additions are less common in Coral Springs’s single-story-dominant stock but feasible where the original footer and slab can carry the load. Sunrooms and enclosed patios are more frequent requests, especially in neighborhoods like Coral Springs Country Club where the golf-course view drives demand for glass. Every one requires impact-rated openings if the city classifies it as conditioned space, and we specify those ratings in the written quote.
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
Rowan Construction Group sources across fifty-plus vetted brands, giving the written quote honest numbers rather than inflated ones. For additions and ADUs in Coral Springs, we commonly specify GAF or Owens Corning roofing to match existing shingle profiles, CertainTeed siding where stucco repair is impractical, and impact-rated windows from manufacturers that meet the Miami-Dade and Broward County product approval lists. We do not ask you to wait on special orders from out of state. Our Coral Springs jobs draw from regional inventory, and our project managers track lead times weekly so the schedule we write is the schedule we keep.
Common Home Additions & ADU Problems We See in Coral Springs Homes
- Pre-1992 hurricane connections that fail inspection. The original roof-to-wall ties in Coral Springs’s 1970s and 1980s CBS stock are often toe-nails or light metal straps that do not meet post-Andrew code. We inspect them before we quote and write the retrofit into the scope if needed.
- Stucco delamination from the rainy season. Coral Springs sees 60-plus inches of rain annually, and aging CBS walls with compromised moisture barriers show efflorescence and spalling. We address the envelope before we add square footage, or the new work inherits the old problem.
- Undersized electrical panels. The original 100-amp or 150-amp panels in Coral Springs’s developer-phase homes cannot carry a second kitchen, bath, and HVAC zone. We specify the service upgrade in the first quote, not the third change order.
- HOA architectural review delays. Starting a garage conversion ADU or room addition before the HOA architectural review approves it, then hitting a stop-work when the city permit is compared to the subdivision’s recorded restrictions, is a pattern we see too often. We submit both tracks in parallel and do not break ground until both are clear.
Pricing for Home Additions & ADU in Coral Springs, FL
These are the ranges we write on our Coral Springs quotes before any work starts. Under Clause 1 of The Haven Standard, the price is written before anyone starts.
| Service | Typical Range in Coral Springs |
|---|---|
| Home Addition | $45,000 - $130,000 |
| ADU Construction | $90,000 - $220,000 |
| Garage Conversion | $30,000 - $80,000 |
| Impact Window Installation | $8,000 - $25,000 |
| Roof Replacement | $8,000 - $20,000 |
What moves the number: square footage, finish level, whether the existing slab and footers can carry the load, and how much of the high water table we hit during utility trenching. Under-allowancing the trench and slab work because the high water table keeps open excavations flooded turns a routine utility rough-in into a steady stream of change orders. We do not do that. Our quote includes the pump time, the dewatering, and the thickened slab edge if the structural engineer calls for it. No change proceeds without a signed change order, which is the discipline that has kept Rowan’s projects within a few percent of the agreed cost across 4,000-plus jobs.
Call (754) 254-7676 for an exact quote on your project. Estimates are free, and we deliver a written price with a written scope and a written warranty.
We Also Serve Cities Near Coral Springs
Our crews work throughout Broward County, including Coral Springs, Margate, Pompano Beach, Plantation, and Deerfield Beach. The same written-price discipline, the same documented photo record, the same 365-Day Done Right Promise applies in every city. If you are comparing contractors across these markets, bring us any written estimate for a Free Second Opinion and we will review it line by line.
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
Yes. Because Coral Springs was master-planned in developer phases and its building department enforces code harder than Margate or Tamarac, an ADU or addition must clear both recorded HOA architectural review and a city permit set - and any unpermitted prior work found during that review forces full remediation before the addition can be signed off. We submit both packets in parallel and do not schedule rough-in until both approvals are in hand. Call (754) 254-7676 and we will walk you through your subdivision’s specific requirements.
Yes, if the original roof-to-wall connections are pre-1992 toe-nails or light straps. Adding onto a pre-1992 CBS house without retrofitting hurricane straps and roof-to-wall connections blocks the final inspection sign-off and can void the builder warranty on newer phases. We inspect the connections during our first site visit and write the retrofit into the scope if the city inspector will flag it. Call (754) 254-7676 for a free estimate that includes this inspection.
Standing water in open excavations is a routine jobsite reality in Coral Springs, where the drained Everglades flatland keeps groundwater close to the surface. We price dewatering, pumping, and potential slab thickening into the original quote rather than discovering it mid-project. The field vignette from our Coral Springs Drive job is typical: generator, pump, thickened edge, inspection pass. Call (754) 254-7676 and we will assess your specific lot conditions.
Under Clause 1 of The Haven Standard, you should have a flat written price, a written scope of work, a written warranty, and a documented photo record of the existing conditions. No work proceeds on a change until the change order is signed. The 365-Day Done Right Promise is printed on every page, backed by a terms page, not an asterisk. Call (754) 254-7676 and we will deliver all four documents before the first permit is pulled.
Only if the conversion follows the builder’s written modification guidelines and the HOA architectural review approves the plans. Starting a garage conversion ADU or room addition before the HOA architectural review approves it, then hitting a stop-work when the city permit is compared to the subdivision’s recorded restrictions, is the most common way owners void coverage. We coordinate with your builder’s warranty department and your HOA before we submit to the city. Call (754) 254-7676 and we will review your specific warranty language.
Ready to add square footage to your Coral Springs home? Call (754) 254-7676 to schedule your free estimate. You’ll receive a written price, a written scope, and a written warranty before anyone picks up a tool. The 365-Day Done Right Promise applies to every project, and our documented photo record gives you evidence of what was found and what was done.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Coral Springs since 2007.