Green Acorn LLC

Fresh Perspective. Innovative Solutions.

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About the firm

Green Acorn LLC offers mechanical, electrical, and plumbing engineering alongside consulting services for architects, contractors, and building owners. Operating from its headquarters in Tulsa, Oklahoma, the practice designs systems for diverse building environments, offering engineering design, commissioning, third-party reviews, due diligence reports, and design-build narratives with a focus on budget alignment and constructability.

Firm type
MEP · Mechanical Engineering · Electrical Engineering · Fire Protection Engineering · Forensic Engineering · Owner's Engineer

Capabilities

MEP Engineering

Service website

Mechanical, electrical, and plumbing engineering designs tailored for complex and custom building systems.

  • Mechanical Engineering

    HVAC, load analyses, and thermal comfort system design.

  • Electrical Engineering

    Power systems, distribution, and specialized electrical infrastructure design.

  • Plumbing Design

    Water systems, piping, and building plumbing infrastructure design.

  • Lighting Design

    Aesthetic and energy-efficient lighting layouts for occupant comfort.

  • Load Analyses

    Thermal and energy demand calculations for HVAC sizing and efficiency.

Engineering Consultation & Forensic Services

Service website

Specialized analysis, fire protection design, and technical third-party review services.

  • Fire Protection Engineering

    Life safety and fire suppression systems engineering.

  • Forensic Engineering

    Technical investigations and failure analysis of building systems.

  • Third Party Review

    Independent peer review and quality control evaluations of engineering plans.

  • Evaluation & Due Diligence

    Pre-purchase inspections and system condition reporting.

Energy & Commissioning

Service website

System verification, energy performance audits, and life cycle cost optimization.

  • Commissioning

    Functional testing and system verification to ensure performance objectives are met.

  • Energy Studies

    Comprehensive energy audits and conservation analysis.

  • LEED Documentation

    Technical coordination and submittals for green building certification.

  • Life Cycle Cost Analyses

    Long-term financial evaluation of building system options.

  • Power System Studies

    Short circuit, coordination, and arc flash analysis.

Design & Construction Support

Service website

Project administration, drawing coordination, value engineering, and detailing services.

  • BIM / VDC

    Three-dimensional modeling and spatial coordination using Revit and BIM 360.

  • Project Management

    Technical project leadership, schedule monitoring, and team coordination.

  • Cost Estimating At All Phases

    Continuous financial tracking and construction cost budgeting.

  • Design Options & Budget Pricing

    Alternative systems analysis and early-stage cost targeting.

  • Design-Build Narratives

    Technical performance specifications and scope definitions for design-build projects.

  • Permit Drawings & Specifications

    Regulatory construction documents for permit acquisition and code compliance.

  • Schematic Designs

    Conceptual engineering layouts and system sizing in the early design phases.

  • Submittal & Shop Drawing Review

    Construction-phase review of contractor shop drawings and equipment submittals.

  • Value Engineering

    Cost optimization studies to maximize performance within budget limitations.

  • Existing System Assessments & Recommendations

    Condition assessments and renovation planning for aging infrastructure.

Industries

Commercial · Multifamily Residential · Healthcare · Education · Manufacturing · Data Centers · Laboratories · Historic Preservation · Religious · Hospitality · Government · Sports & Recreation · Food & Beverage · Industrial

Projects

ARCO Building

Tulsa, OK · Multifamily Residential

Project details

A renovation modifying a historic office building built in 1949 into a mixed-use multifamily facility. Challenges included preserving the original character to qualify for historic tax credits, adding an underfloor parking garage, and installing all-new mechanical, electrical, and plumbing infrastructure while providing a cost-efficient design.

Fab Lab Tulsa

Tulsa, OK · Education · Client: Fab Lab Tulsa

Project details

A 14,000-square-foot new construction project that incorporates industrial manufacturing equipment alongside unique educational spaces and offices. The design creates cohesion between industrial and educational MEP needs, supporting a woodworking lab, metal machining lab, and general maker equipment.

First Baptist Tulsa

Tulsa, OK · Religious · Client: First Baptist Tulsa

Project details

An HVAC system replacement project for a historic downtown church block. The ornate, original worship spaces required upgraded, energy-efficient heating and cooling systems designed and installed without showing signs of physical modification to the historic building.

Cherokee Film Studios

Arts & Culture · Client: Cherokee Film Studios

Project details

A film studio campus development featuring state-of-the-art facilities, mixing rooms, client lounges, entertaining areas, RV hookups, and advanced media equipment to support top-tier professional film production.

Green Acorn LLC - Engineering Firms