Comprehensive Structural, MEP, Civil & Survey Engineering for a High-Performance Luxury Residence in Lucas, Texas

S3DA Design is providing comprehensive Structural, MEP, Civil Engineering, and Land Survey services for a new luxury custom residence located at 1809 Diamond Court, Lucas, Texas. Designed by a German architectural firm, the approximately 12,380-square-foot residence utilizes an advanced Structural Insulated Panel (SIP) or equivalent high-efficiency timber construction system, combining contemporary architecture with sustainable building performance. S3DA is responsible for developing the permit-ready engineering design that transforms the approved architectural concept into a fully coordinated, code-compliant construction package. 

S3DA’s Scope 

Structural Engineering 

• Foundation and slab-on-grade design for the main residence. 

• Structural analysis and engineering of the SIP (or equivalent high-efficiency timber) structural system. 

• Design of elevated floor framing, roof framing, primary beams, and structural support systems. 

• Engineering for special structural loading, including a first-floor jacuzzi, swimming pool, retaining walls, and large-scale architectural shade sails. 

• Structural calculations, framing plans, connection details, schedules, and specifications. 

• BIM-based coordination with the architectural design using an IFC model for precise multidisciplinary collaboration. 

Mechanical Engineering 

• Complete HVAC design with Manual J, S, and D calculations. 

• Mechanical floor and roof plans. 

• High-efficiency HVAC distribution with rigid ductwork. 

• Dedicated dehumidification and Energy Recovery Ventilation (ERV) systems optimized for the North Texas climate. 

• Mechanical schedules, specifications, and detailed engineering calculations. 

Electrical Engineering 

• Complete lighting and power design. 

• Electrical panel schedules and single-line diagrams. 

• Electrical calculations and equipment schedules. 

• Integration of a full-roof photovoltaic (PV) system with provisions for grid interconnection and battery storage. 

Plumbing Engineering 

• Domestic water, sanitary drainage, and natural gas system design. 

• Concealed siphonic roof drainage system coordination. 

• Plumbing riser diagrams, calculations, schedules, and construction details. 

• Mechanical, plumbing, and electrical engineering for the swimming pool and jacuzzi systems. 

Civil Engineering 

• Site grading and drainage design. 

• Stormwater management, hydrology, and hydraulic calculations. 

• Utility design for water, sanitary sewer, storm drainage, gas, and utility coordination. 

• Earthwork calculations, erosion control, and Low Impact Development (LID) compliance. 

Land Survey 

• ALTA/NSPS land survey. 

• Signed and sealed survey documentation. 

• AutoCAD (DWG) survey deliverables. 

• ALTA certification supporting permitting and site development. 

Key Challenges & Solutions 

This project required close coordination between an internationally developed architectural concept and U.S. engineering standards to deliver permit-ready construction documents compliant with Texas regulations. S3DA’s multidisciplinary engineering team is coordinating structural, MEP, civil, and surveying disciplines while adapting the SIP structural system to local code requirements, integrating high-performance building systems, rooftop solar, concealed roof drainage, and complex structural elements such as the pool, elevated jacuzzi, and cantilevered architectural features. Through BIM-based coordination and integrated engineering, S3DA ensures the original design intent is maintained while producing a coordinated, constructible, and code-compliant engineering package. 

The Result 

By serving as the Single Source of Responsibility for Structural, MEP, Civil Engineering, and Land Survey services, S3DA delivers a fully coordinated permit-ready design package that supports efficient permitting, minimizes construction conflicts, and preserves the architectural vision of this exceptional luxury residence. The integrated engineering approach enhances energy performance, structural efficiency, and long-term constructability while streamlining collaboration between the international design team and local permitting authorities.