A site plan shows how a proposed addition fits on the property. Accurate property lines, dimensions, setbacks, easements, structures, and site conditions help reviewers determine whether the project meets applicable zoning, drainage, and permit requirements.
The exact home addition site plan requirements in Louisville, KY depend on the property, project scope, and agencies reviewing the work. Louisville Metro requires new buildings and additions to include a current site survey sealed by a Kentucky-registered land surveyor, unless the building official accepts another form of location proof. Permit applications must also identify the land and include required construction documents.
A residential addition site plan may need to show:
Louisville MSD lists a site plan as a minimum submittal for its permit process covering qualifying single-family projects and building additions. Depending on the site, MSD may also review drainage, grading, easements, sanitary sewer service, erosion controls, and floodplain conditions.
For a broader explanation, review home addition site plans, property surveys, and easements.
The answer to who prepares a home addition site plan depends on the project and the level of information required. A designer, architect, contractor, engineer, or surveyor may contribute to the document, but not every addition needs the same team.
A Kentucky-registered land surveyor may establish or document property boundaries and existing site conditions. The project designer can then use reliable survey information to place the proposed addition and show its dimensions, setbacks, and relationship to the house.
More complicated properties may require additional professional input when the project involves:
Homeowners should confirm the required level of documentation with the reviewing authorities before assuming that a basic sketch will be sufficient.
In a site plan versus property survey comparison, the survey documents existing property information, while the site plan shows the proposed project.
A property survey may identify legal boundaries, dimensions, monuments, structures, and other existing conditions. A site plan uses that information to illustrate where the addition will be built.
Other property resources serve different purposes:
LOJIC is useful for preliminary research, but its parcel boundaries are not legally survey-accurate and are intended for general representation. Its planimetric mapping can also have measurable positional error, so it should not replace a professional survey when precise construction placement is necessary.
Learn more about property surveys for home additions.
Common home addition site plan mistakes include missing dimensions, inaccurate property information, unclear addition placement, and conflicts between the site plan and construction drawings.
Potential problems include:
MSD’s site-plan checklist warns that omitting required items may cause a submission to be rejected without review. Its more detailed review materials can require property boundaries, easements, drainage information, utilities, existing and proposed structures, topography, impervious areas, and other project-specific details.
A coordinated set of drawings can reduce avoidable questions. Review the plans and documents required for a home addition permit before submitting the project.
A site plan should connect your desired addition to the realities of the property. Confirming boundaries, setbacks, easements, utilities, access, and drainage early can prevent a design from reaching permit review with avoidable conflicts.
Keystone Remodeling plans and builds customized home additions in Louisville, KY, including primary suites, guest rooms, sunrooms, second-story additions, and custom living spaces. Its design-build process coordinates planning, design, permitting, and construction through one team.
Contact Keystone Remodeling to develop a complete addition plan that fits your existing home, property conditions, daily needs, and applicable Louisville requirements.
