Appel Midtown (Midtown House)

Project Details

This project involves the comprehensive architectural and structural renovation of the “Appel Midtown” residence, primarily focusing on the conversion of existing structures and the addition of new pedestrian features. The scope of work includes a detailed demolition plan for the upper unit and the existing one-story garage, which is being modified to integrate into the primary living space. A significant component of the design is a proposed 20-foot pedestrian bridge/deck, engineered to support a minimum live load of 60 psf and featuring 42-inch guardrails for safety. The structural engineering for the project utilizes standard 2×4 and 2×6 wood stud framing for interior and exterior walls, supported by existing foundations and reinforced concrete footings where necessary. To ensure thermal efficiency and code compliance, the envelope is designed with R-13 and R-20 insulation, while the floor assemblies utilize 2×6 joists spaced at 16 inches on center topped with 3/4″ subflooring. All designs and materials are specified to comply with the 2024 California Building Code (CBC) and 2024 California Residential Code (CRC). Special attention was given to Title 24 energy requirements, moisture-resistant finishes for new bathrooms, and high-efficacy LED lighting controlled by occupancy sensors to meet stringent state environmental standards. The project also incorporates specialized bi-fold glass door systems that meet NFRC certifications for energy performance and safety glazing requirements.

Role

Structural Engineer/Designer

Services Provided

The scope of services included the preparation of structural analysis, design calculations, and structural plans for the proposed structure. Structural analysis considered wind, seismic, dead, and live loads in accordance with the applicable building code. The work involved the analysis and design of all new structural elements, including foundations, shear walls, load-bearing walls, columns, beams, floor joists, roof joists, connectors, and other required structural components to ensure adequate strength, stability, and code compliance. The services also included the preparation of structural drawings consisting of the foundation plan, second floor framing plan, roof framing plan, first and second floor shear wall layout plans, structural sections, and typical structural details, notes, and specifications to clearly communicate the design intent and facilitate plan review and construction.