Phelps Engineering, Inc. (PEI) is a full-service civil engineering, land surveying, landscape architecture, and land planning firm based in Olathe, Kansas. Founded in 1990, the company provides professional services throughout Kansas and Missouri, with extensive experience in land development and public works infrastructure. PEI brings together civil engineers, land surveyors, landscape architects, project managers, and construction professionals to provide a single-source solution from initial planning through final project completion.

The company provides a broad range of civil engineering services, including site development, residential subdivision design, commercial and industrial site engineering, grading and earthwork plans, utility design, sanitary sewer, storm sewer, roadway design, and public improvement plans. Its stormwater services include stormwater studies, floodplain analysis, HEC-RAS modeling, detention basin and BMP design, drainage systems, pond design, and floodplain elevation certificates.

Phelps Engineering also provides professional land surveying services, including boundary surveys, topographic surveys, ALTA/NSPS land title surveys, subdivision surveys, construction surveys, flood zone surveys, as-built surveys, and GIS deliverables. Its landscape architecture and urban planning services include master planning, neighborhood design, parks and recreation planning, trails, streetscapes, hardscape design, planting plans, and visualization.

PEI works across residential, mixed-use, commercial, industrial, municipal, transportation, stormwater, utilities, parks, and public infrastructure projects. The company currently reports more than 45 employees and maintains licensed engineers and surveyors in Kansas and Missouri.

With more than three decades of experience, Phelps Engineering, Inc. is positioned as a reliable engineering and surveying partner for developers, municipalities, property owners, and other organizations seeking coordinated planning, engineering, surveying, and implementation services in the Kansas and Missouri region.