
LAND DEVELOPMENT IN SOUTHWESTERN PENNSYLVANIA
BUILD SMARTER, FASTER, AND WITH MORE CONFIDENCE
YOUR TRUSTED CIVIL ENGINEERING PARTNER FOR LAND DEVELOPMENT IN SOUTHWESTERN PA.
Looking for expert support in land development in Pennsylvania? McMillen Engineering is the trusted civil engineering firm in PA that delivers precision, speed, and peace of mind for developers across Southwestern Pennsylvania. ​Whether you're planning residential communities, commercial centers, or industrial parks, our team provides comprehensive site planning services and regulatory expertise to help you break ground with confidence. ​
WHY DEVELOPERS CHOOSE MCMILLEN ENGINEERING
Local Expertise: Deep knowledge of zoning, permitting, and environmental regulations across Fayette, Washington, and Westmoreland Counties.
Complete Site Planning Services: From feasibility studies and grading plans to utility coordination and layout optimization, we design sites that maximize land use and ROI.
Stormwater Management in Pennsylvania: Our tailored solutions meet DEP and municipal requirements, ensuring compliance and long-term resilience for your development.
Permitting Power: We streamline approvals with PennDOT, conservation districts, and local municipalities—reducing delays and accelerating timelines
OUR SERVICES:
LAND DEVELOPMENT CONSULTING
McMillen Engineering provides strategic land development consulting across Southwestern Pennsylvania and Northern West Virginia. From site selection to entitlement support, we deliver actionable plans that reduce risk, streamline approvals, and maximize land value for residential, commercial, and mixed-use projects.
CIVIL ENGINEERING DESIGN
McMillen Engineering delivers build-ready civil designs for land development projects throughout Southwestern PA and Northern WV. Our services include grading, roadway layout, utility infrastructure, and erosion control, producing precise, permit-ready plans that balance technical rigor with constructability.
STORMWATER MANAGEMENT PLANS
We design stormwater systems that meet DEP and MS4 requirements while protecting Appalachian watersheds. Serving Westmoreland, Fayette, and Morgantown-area projects, our solutions include hydrologic modeling, detention basin design, and green infrastructure integration.
LAND SURVEYING & BOUNDARY MAPPING
Our surveying team provides accurate GPS and drone-based mapping across Southwestern PA and Northern WV. From ALTA/NSPS surveys to topographic mapping and construction staking, we deliver precise data that supports every phase of development with confidence and reliability.
ZONING & PERMITTING SUPPORT
We guide clients through zoning and permitting processes in Southwestern PA and Northern WV. With deep knowledge of municipal codes in Fayette County and surrounding areas, our team manages reviews, variance requests, and approvals to keep projects on schedule and compliant.
SITE FEASIBILITY STUDIES
Our feasibility studies help clients make confident investment decisions. We evaluate zoning, access, utilities, and environmental factors across Westmoreland, Fayette, and Morgantown-area sites, identifying opportunities and constraints early to ensure projects are positioned for long-term success.




