City of St. Louis (independent city)
Topographic Survey in St. Louis, MO
Topographic Survey in St. Louis
Infill building is steady across the city, from new homes on empty lots in Fox Park and the Grove to additions behind restored rowhouses. Even a small lot can drop several feet between the street and the alley, and designers need that grade before they set a foundation, a garage slab or a drainage path. A topographic survey in St. Louis maps contours and spot elevations, along with curbs, inlets, retaining walls, trees and neighboring foundations close to the line.
Larger projects such as apartment buildings, school campuses or commercial sites need fuller existing-conditions mapping for engineers and city review. Sewer laterals and storm inlets in older streets can matter just as much as surface slopes. Tell us the size of the area, the contour interval and the file format your architect or engineer expects, and we agree on that before a licensed surveyor from our team or network arrives.
When you need one
- You're designing a new house, addition or commercial building
- Your engineer or architect asked for a "topo"
- You have drainage or standing-water problems to solve
- You're planning grading, a retaining wall, pool or driveway
- The city requires existing-conditions information for a site plan or permit
Topographic Survey questions in St. Louis
Do I need a topographic survey for a new house on a vacant St. Louis lot?
Most designers want one, because grades between the street, the alley and the houses on either side control the foundation height and drainage. Ask your architect or builder what they need, and check with the city's Building Division about plan review requirements for your project.
Can a topographic survey show the neighbor's foundation next to my lot?
It can show the visible face of an adjacent wall or foundation and its distance from your line. That is helpful on narrow city lots where new excavation sits close to an older brick building.
Other surveys in St. Louis, MO
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