Texas Site Development Engineering: From Platting to Permit

Texas Site Development Engineering Process

Site development transforms raw land into buildable, permit-ready lots through a multi-phase engineering and regulatory process.

Phase 1: Feasibility and Due Diligence (1-3 months)

• Site feasibility study: environmental constraints, drainage, utilities, access
• Zoning verification: confirm allowed uses, density, and setbacks
• Floodplain check: determine if site is in a FEMA flood zone
• Utility availability: verify water, sewer, and utility service
• Topographic survey: existing conditions and elevation data

Phase 2: Preliminary Platting (3-6 months)

• Lot layout: design lot arrangement, sizes, and orientation
• Street design: roadway alignment, widths, and access points
• Easement dedication: utility, drainage, and access easements
• Drainage concept: preliminary detention and conveyance
• City/county review: planning commission approval

Phase 3: Engineering Design (2-4 months)

• Grading plan: site grading, earthwork, and finish floor elevations
• Drainage design: detention ponds, storm sewers, and swales
• Water system: distribution mains, fire hydrants, service lines
• Sewer system: gravity mains, lift stations, force mains
• Paving: roadway sections, parking, and sidewalks
• Erosion control: SWPPP and TCEQ compliance

Phase 4: Permitting (2-4 months)

• Development permit from city/county
• TCEQ permits for water and sewer systems
• Floodplain permit (if applicable)
• TxDOT permits for driveway and ROW (if on state roads)
• Utility connection agreements

Phase 5: Construction (6-12 months)

• Site clearing and grubbing
• Mass grading to achieve design elevations
• Infrastructure installation: water, sewer, storm drain, paving
• Detention pond construction
• Erosion control maintenance

Phase 6: Final Plat and Closeout (1-3 months)

• As-built survey
• Municipal infrastructure inspection
• Final plat recording
• Notice of Termination (NOT) for SWPPP closeout
• Bond release

Common Challenges

• Floodplain constraints may require fill, LOMA/LOMR, or elevated foundations
• Utility availability may require off-site main extensions
• Drainage requirements may consume significant site area for detention
• Environmental permits (TCEQ, Corps of Engineers) add time
• Multiple jurisdictions (city + county + MUD) require coordination