Construction estimating services in Hilton Head Island, SC

The permit figures on this page come from the U.S. Census Bureau's Building Permits Survey for 2025. That survey counts new privately-owned residential units only, so it excludes commercial, industrial and renovation permits. In 2025 the city issued 208 new residential units, up from 116 in 2024. Of those, 133 were single-family and 75 were multifamily. The permitted value was $147M, which works out to an average of $707,600 per unit. Use these as a demand signal, not as a cost basis for your project.

It helps, but we can build the takeoff from the foundation plan and pile schedule alone. The geotech report tells us the required embedment and whether the design assumes friction or end bearing. Without it, we price the pile length shown on the drawings and flag the assumption in the estimate notes. If the report later changes the required length, the quantity adjusts and we can revise the takeoff.

Wind design increases the number of connectors, not the amount of lumber. You will see hold-downs at more stud locations, straps across floor-to-floor connections, and a tighter nailing schedule on sheathing. In a takeoff, those are counted by type and quantity from the connector schedule. If the schedule is missing from the set, we carry an allowance and note it. Sheathing quantities do not change much, but the fasteners and hardware do.

We cover the full MasterFormat range, but on the island the heavy divisions are 31 (earthwork and piles), 03 (concrete), 06 (wood framing), 07 (roofing and waterproofing), and 22/23 (plumbing and HVAC). We also handle 26 (electrical) and 09 (finishes). The estimate is organized by division so your subcontractors can pull their own scope without reformatting the file.

Yes, but the takeoff will carry separate items for silt fence, turbidity barriers, and buffer protection, and we will note that the permitting sequence is outside our scope. The quantity of those items depends on the length of the marsh frontage, which we scale from the site plan. Confirm the buffer width and any required setbacks with the local building department and the applicable state coastal program before you rely on those quantities.

Most projects are returned in 24 to 48 hours. Rush turnaround is available if you have a bid deadline inside that window. The file comes back in Excel and PDF, organized by CSI MasterFormat division, with marked-up plan sets showing what we measured. If you send a partial set, we will tell you what is missing before we start.

Yes. We use ZIP-code-adjusted material and labor pricing, so the labor rates reflect the Beaufort County market rather than a national average. Island labor carries a premium because crews and equipment often have to be mobilized across the bridge. That premium shows up in the labor line, not as a hidden percentage on the bottom line.

Waste factors are applied per material, not once at the end. Typical ranges are 5% for formed structural concrete, 7% to 10% for flatwork, and about 10% for roofing on a hip roof. Framing waste depends on the complexity of the plan. We show the waste factor on each line so you can see where it was applied and adjust it if your supplier or crew works differently.

Yes. Multifamily work was 36% of the residential units permitted in 2025, so it is a real part of the local market. For those projects we break the takeoff by building type and by unit, then roll up the common areas separately. That lets you compare cost per unit across a project and see where the common-area scope is driving the number. Our multi-family estimating services cover this format.

Send the architectural, structural, and MEP sheets, plus any specifications and the geotechnical report if you have it. A site plan with the property lines and marsh buffer helps for the sitework division. If you have a bid form or a scoping checklist, include it so we can match your format. You can send plans through the get an estimate page and we will confirm scope before we begin.