The project will consist of a new ADU above SFD with adjacent accessory building at a residential property located at 2363 Landa Street in Los Angeles, California. The project will include new design for electrical, HVAC, and plumbing. Total area for interior residential design will be approximately 2,580 square feet.
The scope of work described herein is based on file(s) and email(s) received on February 20, 2023.
Design services required include the following systems: Electrical, Mechanical, and Plumbing.
The Electrical Engineering scope included providing new electrical utility service drawings, building load calculations, and application forms. A site plan showing the proposed utility service entrance and main meter location was developed, with exact equipment locations coordinated with the utility service provider. Coordination with the utility representative was included as needed, although the encroachment application was excluded from this scope.
Lam + Tea also designed the exterior electrical system, which included circuiting plans for façade and landscape lighting. Fixture layouts and specifications were provided by the Architect and/or Landscape Architect, as lighting design services were not part of this scope. Coordination with the Architect, solar consultant, and/or equipment supplier was performed for the solar photovoltaic system requirements; however, the design of the PV system itself was excluded.
The interior electrical system design included circuiting plans for interior lighting, power distribution for general and mechanical/plumbing systems, and integration of empty conduit layouts for low-voltage system requirements. Coordination was maintained with the Architect for power/receptacle layouts and with other disciplines for system connections. A single-line diagram, voltage drop, and short circuit (AIC) calculations were also provided as required.
The Mechanical Engineering scope involved studying HVAC system options and providing recommendations to the client. Lam + Tea prepared zoning diagrams for coordination and review, and designed all new HVAC equipment and air distribution layouts. The scope also included exhaust systems for restrooms and kitchens, new return and supply diffusers, and ventilation for the water heater as required. State mechanical energy compliance documentation and forms, including envelope calculations and modeling in accordance with Title 24, were provided.
For the Plumbing Engineering scope, Lam + Tea sized incoming utility services, including sanitary and storm drainage, gas, and domestic water supply systems. The team designed the hot and cold-water distribution, waste and vent systems, building storm drainage piping, and the natural gas system. Plumbing fixtures and equipment were specified, and fixture load calculations and riser diagrams were prepared as required. Coordination with the Landscape Architect and Civil Engineer ensured proper points of connection. Site drainage design was specifically excluded from the scope of work.
