Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Additions & ADU Across Cypress Lake
Adding square footage or a detached ADU in Cypress Lake is a bigger decision than it was five years ago, and the reason is specific to this community. Lee County’s building department is now enforcing the post-Ian substantial-damage rule far more aggressively than neighboring counties, which means an addition that would sail through permitting in Naples can trigger a full structural and flood-zone review here in 33919. We scope every Cypress Lake project with those county rules in mind before we quote, so the price you sign is the price you pay. Call us at (877) 610-1318 for a free estimate on your addition or ADU.
Why Barrett & Sons Construction Is Cypress Lake’s Preferred Home Additions & ADU Company
Tom Barrett founded this company in 1998, and his sons still run the crews. When you call about a Home Additions & ADU project in Cypress Lake, you’re talking to someone who will be on your job site, not a call center routing a ticket to a stranger. That matters here, because Cypress Lake projects carry permitting and flood-zone complications that a national outfit’s phone quote won’t account for.
We’ve been through the post-Ian rebuild cycle in Cypress Lake alongside the homeowners who live here. We know what Lee County inspectors are flagging on wind-mitigation reviews and when an elevation certificate has to accompany the permit application. Our crew members are background-checked and wear the Barrett & Sons name on their uniforms. Every contract carries the 90-Day Done Right Promise in writing: if it’s not done right, Tom comes back and makes it right, one call.
Our Home Additions & ADU Services in Cypress Lake
Cypress Lake has a specific housing profile: 1960s to 1980s concrete-block ranch homes and condo complexes built before Florida’s post-2004 high-wind code overhaul. That shapes the kind of addition and ADU work we do here. Here are the services we handle most often in the 33919 corridor.
New Detached ADU
A detached ADU on a Cypress Lake lot is the most involved of the options, and the county-specific realities start before the slab pour. Septic and well setbacks dictate where the structure can sit, and most 33919 lots lack paved turnarounds for concrete trucks. We scope equipment access in writing before we quote, so there’s no surprise crane fee halfway through the job. ADU construction in Cypress Lake typically runs $90,000 to $220,000 depending on size, finishes, and how much site prep the lot requires.

ADU Site Prep & Utilities
This is the part of a Cypress Lake ADU that generic cost guides miss entirely. Flat, low-lying terrain near the Caloosahatchee River watershed puts much of the area in AE and VE FEMA flood zones. New structures may need elevation on stem walls or pilings to meet base flood elevation plus freeboard. If the lot has a private well and septic, the health department’s setback rules determine placement as much as the survey does. We handle the grading, drainage, utility rough-in, and permit drawings as one scoped line item, not an open-ended cost.

Garage Conversion ADU
Converting an attached garage is often the most cost-effective ADU path in Cypress Lake, but it’s not automatically simpler. Many 1960s and 1970s ranch homes here have non-impact garage doors and older roof-to-wall connections that Ian exposed as failure points. A conversion that touches structural elements may trigger the substantial-damage threshold, at which point Lee County wants engineered drawings. Garage conversions in this market generally run $30,000 to $80,000, with the higher end reflecting impact-glass upgrades and structural work.

Junior ADU & Interior Conversion
A junior ADU, typically a converted bedroom with a small kitchenette and private entrance, sits at the lighter end of the cost and permitting scale. In Cypress Lake, interior conversions face fewer wind-mitigation triggers than detached structures, but if you’re in a condo complex along the McGregor Boulevard corridor, HOA and association reviews add lead time. We’ll walk you through what your specific community requires before you commit to drawings.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
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.
Trusted Brands We Service in Cypress Lake
We install brands you can look up, not mystery materials off a van. On Cypress Lake ADU and addition projects we regularly work with Schluter for waterproofing and tile systems, Grohe for plumbing fixtures, and GAF for any roofing component on a new structure or tied-in addition. If a brand has supply-chain delays, we tell you before you sign, and we carry a 10% Senior & Veteran discount on every job.
Common Home Additions & ADU Problems We See in Cypress Lake Homes
- Substantial-damage triggers nobody warned the homeowner about. The rule kicks in when renovation costs exceed 50% of the home’s pre-storm value, and Lee County now enforces it aggressively. An ADU that the county deems structurally tied to the main house can push you into elevation certificate and engineered-drawing territory.
- Septic and well setbacks that red-tag a project after drawings are already paid for. On acreage lots in 33919, the health department’s reserve area rules are strict. A detached ADU or second-story addition that encroaches will be flagged, and the fix usually means moving the structure, not arguing with the inspector.
- Salt air and humidity eating non-rated fasteners and flashing. Cypress Lake sits minutes from the Caloosahatchee and the coast, and the combination of salt spray, 70% plus humidity, and intense UV load accelerates corrosion faster than inland Florida markets. We spec stainless and coated fasteners on exterior connections as standard here.
- Fixed quotes that don’t account for equipment access. Most Cypress Lake lots were laid out in the 1960s and 1970s without turnarounds for concrete trucks or crane deliveries. A contractor who quotes a fixed price without scoping haul distances and access fees will hand you a change order. We write those allowances into the contract before work starts.
Pricing for Home Additions & ADU in Cypress Lake, FL
A home addition in Cypress Lake typically runs $45,000 to $130,000. Detached ADU construction runs higher, $90,000 to $220,000, because of the site work, utilities, and flood-zone elevation requirements Lee County applies here. Garage conversions range from $30,000 to $80,000. Those are honest ranges for this market, and they include the county-specific costs that national estimators miss. Here are the line items:
| Project Type | Typical Cypress Lake Range |
|---|---|
| Home Addition | $45,000 - $130,000 |
| ADU Construction | $90,000 - $220,000 |
| Garage Conversion | $30,000 - $80,000 |
What moves the number? Flood-zone elevation requirements, septic and well setbacks, equipment access, and whether the addition triggers the substantial-damage review. We scope all of it in writing and hand you a line-item quote before you sign. Call (877) 610-1318 to schedule a free estimate.
We Also Serve Cities Near Cypress Lake
Our crews work across Lee County and the surrounding communities, including McGregor, Villas, Iona, and Fort Myers. If you’re near Cypress Lake but just outside the 33919 boundary, call us at (877) 610-1318 and we’ll confirm coverage for your street.
Serving Cypress Lake, FL - Our Local Coverage Area
We’re based in the Cypress Lake 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 Cypress Lake
The rule requires engineered drawings and elevation upgrades when renovation costs exceed 50% of the home’s pre-storm value, and Lee County now enforces it aggressively in the post-Ian rebuild cycle. An ADU that the county determines is structurally tied to the main house can push you into a full structural and flood-zone review. We check the trigger point before quoting so you know where you stand. Call (877) 610-1318 and we’ll walk you through it.
On most acreage lots in 33919, yes, a detached ADU needs its own septic reserve area and possibly its own well connection, and the Lee County health department’s setback rules will dictate where the structure can sit. We survey the lot and map those setbacks before design begins. For an exact answer on your property, call (877) 610-1318.
Yes. Since Ian, Lee County inspectors have been specifically flagging roof decking nail patterns and sheathing uplift ratings, and any new detached structure gets a wind-mitigation review. We build Cypress Lake ADUs with hip roofs, impact-glass packages, and secondary water barriers as standard, which clears those inspections on the first visit in most cases.
In many cases, yes, if the conversion stays within the existing footprint and doesn’t trigger the 50% substantial-damage threshold. But older 33919 homes often have non-impact garage doors and roof-to-wall connections that need upgrading as part of the conversion, and we scope those costs up front. Garage conversions here run $30,000 to $80,000. Call (877) 610-1318 for a free estimate on your specific garage.
Because most Cypress Lake lots lack paved turnarounds for concrete trucks and crane deliveries, so material hauls and equipment access costs run higher than in denser, newer developments. Salt air and humidity also require corrosion-resistant fasteners and flashing that inland builders don’t spec. Those are real costs, and we write them into your allowances before you sign, not after.
One More Thing About Working in Cypress Lake
On a large 33919 lot off McGregor Boulevard, we scoped a detached ADU with a private septic setback and well location. Our crew ran the rough-in for a Kohler bathroom and KraftMaid kitchenette before the slab pour, and we pulled the Lee County permit with a hip roof and impact-glass package that cleared the wind-mitigation inspection sign-off on the first visit. That’s the kind of project we do here every month. If you’re planning an addition or ADU in Cypress Lake, call (877) 610-1318 for a free estimate. We’ll scope it in writing, pull the permits, and stand behind the work with the 90-Day Done Right Promise.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Cypress Lake and greater Lee County since 1998.







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