Adaptive Engineering for Timeless Buildings

At Existing Building, LLC, we provide expert consulting services for new and existing buildings, with a focus on innovation, safety, and sustainability. Our licensed engineers provide client driven solutions and specialize in compliance with building and fire code across multiple jurisdictions.

Services

    • Life Safety Drawing Preparation, Review & Redlines

    • Code Compliance Evaluation for Existing & New Construction (IBC, NFPA 101)

    • Development of Engineering Judgments to Address Non-Conforming Conditions

    • Engineered Life Safety System (ELSS) Design & Documentation

    • Means of Egress Analysis & Occupant Load Calculations

    • Coordination with AHJs During Plan Review & Inspection Phases

    • Smoke Control Rational Analysis Reports for High-Rise, Atrium, & Large Assembly Buildings

    • Stair & Elevator Pressurization System Design

    • Complex Smoke Control Modeling using Contam, Ventus, Pyrosim & Pathfinder

    • Recertification & Periodic Testing for Existing Smoke Control Systems

    • Special Inspections & Commissioning per IBC 909.18.9

    • Development of Smoke Control Test Plans & Sequences of Operation for AHJ Approval

    • Fire Sprinkler & Fire Alarm System Design Review and Performance Evaluation

    • Preparation of Bid Specifications and Drawings for System Scope Clarity

    • Contractor Bid Review & Comparison for Sprinkler and Fire Alarm Proposal

    • Third-Party Peer Review for Permitting or Insurance Requirements

    • Fire Pump Submittal Review & Acceptance Test Oversight

    • Construction Observation & Final Acceptance Walkthroughs

    • Holistic Fire Protection Analysis for Existing High-Rise Buildings

    • Egress Modeling and RSET vs. ASET Analysis for Atriums & Large Assembly Occupancies utilizing FDS, Pyrosim, & Pathfinder

    • Thermal and Smoke Movement Analysis to Evaluate Equipment Exposure and Risk to Critical Infrastructure

    • Lithium-Ion Battery Energy Storage System (BESS) Fire Risk & Hazard Mitigation Assessments

    • Fire Modeling to Support Deviation from Prescriptive Code such as Extended Travel Distances or Omission of Roof Vents in Storage Warehouses

    • Development of Performance-Based Design Reports & Fire Safety Design Briefs for AHJ Review

    • Generator Studies

    • Emergency and Standby Power System Design

    • Mechanical System Analysis and Design Support

    • Fire Pump Studies and Design Support

    • Bi-Directional Amplifier (BDA) Analysis to Determine Existing Coverage

    • Emergency Responder Radio Enhancement System Design

    • Baltimore, MD - Fire and Life Safety Design Evaluation (FLSDE)

    • San Diego, CA - Existing Smoke Control Recertification & Compliance with Standard C-2

    • Broward, Palm Beach, and Miami-Dade, FL - Engineered Life Safety System (ELSS) Reports

    • Military & DoD - Qualified Fire Protection Engineer (QFPE) Design & Construction

Projects

Icon Brickell Condominiums

Miami, FL

The Grande North and South

San Diego, CA

440 & 450 West Condominiums

Clearwater, FL

350 & 450 Olas Condominiums

Fort Lauderdale, FL

St. George’s University

True Blue, Grenada

Coca-Cola Senaca Industrial Park

Broward County, FL

Prevention Through Planning

We believe effective building solutions are built through consistent engagement, thoughtful coordination, and practical engineering judgment. Each project presents its own complexities, and our involvement extends well beyond the design phase - helping clients navigate complex bidding processes, construction coordination, and final approvals. At Existing Building, our role doesn’t end when the drawings are done, we’re with the project through the finish line.

This philosophy is grounded in responsiveness and adaptability. We deliver solutions shaped specifically by the unique needs and priorities of each project and client. By aligning code compliance with real-world execution, we help ensure that systems are not only properly designed but also fully coordinated and constructible.

We provide engineering, code consulting, and critical system design and coordination for both new construction and existing buildings. Our work spans a wide range of building types and occupancies, with services that include code analysis, smoke control design, egress evaluations, existing condition assessments, and coordination of active and passive fire protection systems. Whether developing a compliance strategy for a new high-rise or navigating retrofit challenges in an existing facility, our focus remains on delivering solutions that are practical, code-aligned, and tailored to the needs of the project.

Prevention through planning means anticipating challenges, communicating clearly, and staying committed from concept to completion. This approach reduces uncertainty, streamlines collaboration, and results in performance-driven outcomes that stand up in the field. We’re committed to solutions that are designed to perform not just through approvals, but across the continued existence of the building.

Reach out to learn more or start a conversation about your project.

Meet the Team

  • Jeff Marcic

    PRINICPAL

  • Matthew Foley

    PRINCIPAL

  • William Fletcher

    SENIOR FIRE PROTECTION ENGINEER