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Prefab storage shed on a new concrete slab behind a Lake Alfred home near a lake

Shed Slabs · Polk County

Shed & Storage Building Slabs in Lake Alfred, FL

Concrete shed pads for Lake Alfred homes and grove parcels, built high enough to meet the city's street-crown rule.

  • Free on-site estimate
  • Written quote within 48 hours
  • Engineer's plans followed to the letter

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The short answer

Concrete Barn Slabs Polk County pours the shed slab for Lake Alfred, FL homeowners whose house is already built, because city code bars an accessory building on a vacant lot. Plan on sealed plans, a site plan and a flat $165 city fee for sheds up to 20 by 20. We charge $7 to $12 per sq ft for the pad.

A Lake Alfred shed pad starts with a house already on the lot

Before you price a shed slab in Lake Alfred, look at one rule in the city's land code. Section 3.8.1.F.1 says no accessory structure goes up before the principal structure. No house on the lot yet? Then the storage building waits. The same section bars a separate electric or water meter for the shed, so any power you run out there comes off the house service.

With the house in place, the job is simple: a square, level concrete shed pad in the right spot, with anchors where the building's drawing puts them. We pour these for prefab storage buildings, kit sheds and small shops framed on site. Our shed and storage building slabs page covers the work across Polk County, and the Lake Alfred slab contractor page covers bigger jobs in town.

Backyard shed pad formed beside an existing house in Lake Alfred, Polk County
A shed pad formed in the yard of an existing home.

Sealed shed plans and a $165 flat fee under Sec. 14-71

Lake Alfred handles shed permits at Community Development on N. Lake Shore Way, through the Accela portal. The city's building permits page asks for building plans sealed by a Florida architect or engineer, plus a site plan showing dimensions and setbacks.

Sec. 14-71 of the city code lists a job-basis fee for sheds up to 20 feet by 20 feet: $27 for administration, $92 for plans review and $46 for inspection, $165 in all.

Who can file? The city says a contractor whose state license is registered in its Accela system, or an owner of homesteaded property acting as their own contractor. The page lists a Permit Exemption Request form but names no shed size that skips a permit, so get any exemption in writing before you skip a permit. Don't count on same-day inspections. Requests close at 2 pm for the next day's list. On a job over $5,000, the city wants a copy of the Notice of Commencement; Florida requires recording one once the work tops $2,500.

Rolled shed site plan and survey on a tailgate before a Lake Alfred shed slab job
Plans and survey reviewed before a shed pad is formed.

What It Costs

Our shed slab range in Lake Alfred is $7 to $12 per sq ft, and typical projects run $1,800 to $5,000. Worked out by footprint:

JobPer sq ftTypical projectWhat moves the price
12x16 shed pad (192 sq ft)$7 to $12$1,800 project floor (math: $1,344 to $2,304)Anchors, door apron, fill to clear the street crown
16x20 storage building (320 sq ft)$7 to $12$2,240 to $3,840Thickness, fiber or wire, truck access
20x20 shop shed (400 sq ft)$7 to $12$2,800 to $4,800Muck removal, build-up fill, ramp

These are our ranges, not a quote, and the city's $165 shed fee is separate. You get a free written estimate after we see the site, sent within 48 hours.

Ten feet from the house and behind the building line

Lake Alfred's land code decides where the pad goes, and the rules change by zoning district. Section 3.8.1.E.4 keeps a detached accessory building at least 10 feet from the house. In residential districts it can't sit forward of the principal building line, or inside the side street setback on a corner lot. Accessory setbacks from Table 2.1.6.C, listed as street, side street, side and rear:

  • RR (Rural Residential): 30, 30, 10 and 20 feet
  • VRN: 30, 15, 10 and 5 feet
  • RN-1, RN-2, MHP and UR: 20, 15, 5 and 5 feet

The slab edge runs past the wall line, so measure to the concrete. Watch lot coverage, too. The city caps impervious surface at 0.40 in RR, VRN and RN-1, and residential districts get an extra 10 percent allowance for accessory structures and the areas around them. Bring your survey to the site visit, and we'll mark the corners against it before we form anything.

Staked shed slab corners measured off the property line in a Lake Alfred backyard
Corner stakes and string marking where a shed pad will go.

How the Job Goes

  1. Walk the yard

    We check the street crown and the low spots, and measure the 10 foot gap from the house.

  2. Written price

    Your quote arrives within 48 hours, matched to the sealed shed plan.

  3. Paper in Accela

    Your contractor or you as homestead owner files; we supply slab details for the file.

  4. Forms and anchors

    We clear, compact, form to height and set anchors to the plan.

  5. Pour and cure

    We pour early to beat the afternoon storms, then saw cut and cure for 3 to 7 days.

Twelve inches over the street crown on low Lake Alfred lots

This rule sets shed height in town. Lake Alfred's ULDC Section 2.1.4.A.2 says every structure's first floor sits at least 12 inches above the highest point of the crown of the street it fronts, unless an approved plan says otherwise. If your lot already sits above the road, it costs you nothing. On a low lot near Lake Haines, Lake Swoope or Lake Rochelle, the shed slab may need to be built up.

Ground conditions vary. In a sample of 42 points inside the city boundary, 26 percent landed on open water. Candler sand, an excessively drained ridge soil, led the land points at 24 percent. Samsula muck, a very poorly drained soil, took 14 percent. The same points split about evenly between FEMA Zone X and Zone AE, so look up your own parcel. The city offers free flood assistance and inspections, and its floodplain information page posts a wetland map.

On Candler sand, we strip roots and topsoil, as the residential code requires, then compact. On a mucky spot, move the shed to sandier ground if the setbacks allow it; if it can't move, we price digging out the soft material and bringing back compacted fill.

Hurricane anchors and the 720 square foot line

Hurricane season runs June 1 to November 30, and your shed has to stay on its pad when it blows. Florida law gives storage sheds of 720 square feet or less, not built for living in, an exemption from the wind-borne debris impact standards. Wind-load design and anchoring aren't part of that exemption. They still follow the code. The text is in section 553.73 of the Florida Statutes.

The sealed plan the city asks for is where the anchor answer belongs. The engineer's plan or the shed maker's drawing shows the bolt or strap layout, and we set those embeds in the forms before the truck arrives, then check spacing against the sheet.

There's one more city rule: a trailer, mobile home or vehicle can't serve as an accessory structure, so an old trailer or a vehicle parked out back can't stand in as the shed.

A 4 inch pad clears the 3-1/2 inch code minimum, with joints every 8 to 12 feet per NRMCA, so a 20 by 20 gets one cut each way.

Grove sheds near the Citrus Research and Education Center

Lake Alfred is citrus country. The UF/IFAS Citrus Research and Education Center sits at 700 Experiment Station Rd. with more than 600 acres of groves, greenhouses and a fresh fruit packinghouse. A storage building on grove land may hold sprayers, ladders and bins instead of lawn gear, and that load belongs on the plan.

The RR district allows agricultural uses on lots of 1 acre or more, and accessory buildings there can reach 36 feet tall. If the shed will serve a working grove, read our Florida farm building permit exemption guide before you file. The city's code also notes that Polk County agricultural tax status calls for fenced property certified by a Property Appraiser inspector. Ask Community Development how it treats your parcel. The office recommends a pre-application meeting.

A grove storage building can outgrow a backyard shed. Past 20 by 20, the flat shed fee stops applying and the job looks more like a barn. Our pole barn slabs in Lake Alfred and metal building foundations in Lake Alfred pages cover those floors.

Lake Alfred shed paperwork for the free site visit

  • Address, and the zoning district if you know it (RR, VRN, RN-1 and so on)
  • The survey, with the house and the planned shed corners marked
  • The shed maker's footprint and anchoring sheet, or the sealed plan
  • The street-crown height at your frontage, if a surveyor has shot it
  • Who will file: your contractor, or you as homestead owner
  • Anything heavy going inside: mower, grove equipment, a workbench
  • Gate width and soft spots between the street and the pad

The visit costs nothing, and a written quote follows within 48 hours. Comparing towns? See our Winter Haven shed slabs and Haines City shed slabs pages, or request your estimate.

Questions We Get

Can I put a shed on my empty lot in Lake Alfred before building the house?
No. Section 3.8.1.F.1 of the city's land code says no accessory structure goes up before the principal structure, so the shed and its slab wait for the house. The same section bars a separate electric or water meter, so shed power runs from the house.
What does Lake Alfred charge for a shed permit?
Sec. 14-71 lists a fee for sheds up to 20 by 20 feet: $27 administration, $92 plans review and $46 inspection, $165 total. Larger buildings fall under other fee lines. You pay it to the city, separate from our slab price, so confirm the current amount with Community Development.
How much bigger than my shed should the concrete pad be?
Start from the maker's footprint so every wall bears fully on concrete, then add a margin so rain runs clear of the walls. Measure the 10 foot gap from the house and your district setbacks to the concrete edge, not the wall line. Then we form the pad to your drawing.
How high does a shed slab sit on a low Lake Alfred lot?
At least 12 inches above the highest point of the crown of the street the lot fronts, under ULDC Section 2.1.4.A.2, unless an approved plan says otherwise. Near the lakes that can mean fill under the pad, capped at 24 inches of clean sand by the residential code unless approved.
Does a Lake Alfred shed need hurricane anchors in the slab?
Yes. Sheds up to 720 square feet skip Florida's wind-borne debris impact standards, but not wind-load design or anchoring. The city's sealed plans show the anchor layout, and we set the bolts or embeds in the pad before the pour and check them against that sheet.
Can I pull my own shed permit as a homestead owner here?
On your homestead, the city says you may act as your own contractor. Otherwise a contractor whose state license is registered in the city's Accela system files. Either way, inspection requests close at 2 pm for the next day's list, so plan the pour around that.

Sources we used

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Get your Lake Alfred shed pad priced

Call (863) 269-3083 or send the survey and shed drawing. We'll walk the lot for free and send a written quote within 48 hours.

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