What Dunn & Dunn Land Surveyors & Civil Engineers Does and When You Need Them

Dunn & Dunn provides land surveying and civil engineering services across South Carolina

Dunn & Dunn Land Surveyors & Civil Engineers is a South Carolina-based firm that handles boundary surveys, site plans, construction layout, and civil engineering design. The firm works with property owners, developers, contractors, and municipalities on projects ranging from residential lot lines to commercial site development. If you own land and need to know exactly where your property boundaries are, or if you're planning construction and need engineering drawings and site preparation work, Dunn & Dunn is the type of firm that does that work.

The company operates in the surveying and engineering space, which means they combine two related but distinct services. Surveyors measure and map land; civil engineers design how that land will be used and developed. When these services come from one firm, the process often moves faster because the surveyor's measurements feed directly into the engineer's designs without having to hand off information between separate companies.

Key Takeaways

• Dunn & Dunn performs boundary surveys to establish property lines, which you may need before selling, building, or resolving disputes with neighbors.
• The firm provides site plans and civil engineering design for construction projects, from residential homes to commercial and industrial development.
• They handle construction staking and layout, which means marking where structures will actually sit on the ground before building begins.
• As a South Carolina firm, they understand local regulations, zoning requirements, and the permitting process that varies by county and municipality.

When you need a boundary survey

A boundary survey is the most common reason property owners contact a surveying firm. This survey establishes the exact lines of your property by measuring from known reference points, reviewing deed records, and placing markers (usually metal stakes or pins) at the corners and along the edges of your lot. You typically need this before you sell, before you build, or if a neighbor's fence, shed, or tree is encroaching on what you believe is your land.

The surveyor will research your property's deed, look at historical surveys if they exist, and physically measure the land using modern equipment. The result is a formal survey document that shows your property boundaries and can be recorded with your county register of deeds. This document becomes the legal record of where your property actually is, which matters for mortgages, insurance, and any future disputes.

Boundary surveys cost more than some people expect because the work is precise and legally binding. The price depends on the size of the property, how accessible it is, whether previous surveys exist, and whether there are complications like unclear deeds or conflicting information. Getting a survey before you buy land or before you build is almost always cheaper than dealing with a boundary dispute after the fact.

Site plans and civil engineering design

When you're planning to build or develop property, you need more than just a boundary survey—you need a site plan that shows how the building, parking, utilities, drainage, and access will actually work on the land. Civil engineers create these plans, and they must account for local zoning codes, setback requirements (how far buildings must be from property lines), stormwater management, and utility connections.

Dunn & Dunn's civil engineering services include designing the layout of commercial and industrial sites, residential subdivisions, and infrastructure improvements. An engineer will visit the site, review the surveyor's measurements, check local regulations, and produce drawings that contractors can build from. These drawings go to your city or county for permit review, so they have to be complete and accurate.

For residential projects, this might mean a site plan showing where a new house will sit, where the driveway goes, how stormwater will drain, and where utilities connect. For commercial projects, it could involve parking lot design, loading areas, pedestrian access, and compliance with Americans with Disabilities Act (ADA) requirements. The engineer's job is to make sure the design is buildable, legal, and practical.

Construction staking and layout services

Once a site plan is approved and construction is ready to begin, someone has to mark on the actual ground where the building will sit, where the foundation goes, and where utilities will run. This is called construction staking or layout, and it's the bridge between the engineer's drawings and the contractor's work. Dunn & Dunn performs this service using surveying equipment to place stakes and marks that show the contractor exactly where to dig, build, and connect utilities.

This step prevents costly mistakes. If a contractor starts digging in the wrong place or builds a structure in the wrong location, the cost to fix it can be enormous. A surveyor on site at the beginning ensures that what gets built matches what was designed and permitted. As construction progresses, surveyors may also verify that the building is going up in the right location and at the right elevation.

How Dunn & Dunn fits into your project timeline

Understanding when to bring in a surveying and engineering firm helps you plan and budget. If you're buying land, a survey early in the process protects you from discovering boundary problems after you've committed money. If you're building, you need surveying and engineering before you can get permits, so these services should be scheduled before you hire a contractor.

The timeline typically works like this: survey the property, use those measurements to create a site plan, submit the site plan for permits, get approval, then do construction staking before building begins. Trying to skip steps or do them out of order usually causes delays because permits can't be issued without proper plans, and contractors can't start without staking.

Dunn & Dunn, as a combined surveying and engineering firm, can often compress this timeline because both services are coordinated in-house. You're not waiting for a surveyor to finish and then hunting for an engineer; the same organization handles both, and the engineer has immediate access to the surveyor's data.

Working with local regulations and permitting

South Carolina's regulations vary significantly by county and municipality. What's allowed in one jurisdiction might require special permits or modifications in another. Zoning rules, setback requirements, stormwater standards, and building codes differ across the state. A local firm like Dunn & Dunn knows these variations and can design projects that will actually pass permit review the first time.

When you hire a surveying and engineering firm, part of what you're paying for is their knowledge of local requirements. They know which county offices to contact, what documents each jurisdiction requires, and what common issues come up in your area. This local knowledge saves time and prevents the frustration of submitting plans that don't meet local code and having to redesign.

Frequently Asked Questions

How much does a boundary survey cost?

Boundary survey costs vary widely depending on property size, accessibility, and whether previous surveys exist. A simple residential lot survey might cost several hundred dollars, while a larger or more complicated property could cost significantly more. Contact Dunn & Dunn directly for a quote based on your specific property.

Do I need a survey before I build?

Yes, almost always. Before you can get a building permit, you need a site plan showing where the structure will sit on your property. That plan is based on a survey. Building without a survey risks placing your structure in the wrong location, which can create legal and financial problems.

What's the difference between a surveyor and a civil engineer?

A surveyor measures land and establishes boundaries. A civil engineer designs how land will be used and developed. They work together: the surveyor provides the measurements, and the engineer uses those measurements to create designs that comply with regulations and work practically.

How long does it take to get a survey and site plan?

Timeline depends on property complexity, weather, and how busy the firm is. A straightforward residential survey might take a few weeks, while a larger commercial project could take longer. Contact Dunn & Dunn to discuss your timeline and get realistic expectations for your project.

Can I use an old survey instead of getting a new one?

Sometimes, but not always. If the old survey is recent and the property hasn't changed, it might be usable. However, if there's any question about boundaries or if significant time has passed, a new survey is safer. An old survey also may not meet current permit requirements. Ask Dunn & Dunn whether your existing survey is sufficient for your project.