$2.2MM IN SAVINGS ON A MULTIFAMILY PROJECT

Project Location: San Jose, CA

Type: Multifamily

Net Internal Area: 315,000 ft²

Number of Apartments: 380

Swapp’s algorithms and highly automated systems quickly calculate optimal floor plan layouts to create stacked and back-to-back bathrooms while at the same time designing apartments with plans that tenants want.

Stacking back-to-back bathrooms vertically saves plumbing installation cost and adds leasable floor space that would otherwise be allocated to shafts.

For contractors, field labor costs are the biggest component of the bid cost and carry the greatest productivity risk. Smart architectural layouts, integrated with MEP design, provide opportunities for a high degree of prefabrication and reduced field labor cost. MEP contractors are eager to prefabricate as much as possible because it makes their bids more competitive.

When the bathrooms are stacked with a back-to-back arrangement the plumbing systems can be prefabricated as modular assemblies, loaded into the building, and connected with simple fittings between floors. 

Working with the Harris estimators, we determined that plumbing costs can be reduced by 35% because less productive field labor is replaced with efficient shop labor. For a multifamily building of  315,000 square feet in a region, like San Jose, with high labor costs of $111 per hour, the cost savings are $2,235,000. 

The  total cost of bathroom piping rough-ins are $4,149,000 compared to the original estimate of $6,384,000. This represents a savings in field labor of 17,000 hours, or 26 weeks of crew time on site! Bathroom walls, fixtures and trim are no longer on the project schedule’s critical path and an earlier project completion date may be realized.

When the detailed shop drawings are developed we often find that back-to-back bathroom arrangements eliminate the need to lower ceiling heights so that sloped, horizontal waste piping can fit above the ceiling to run from a bathroom to a main waste riser. Keeping ceilings higher without increasing the floor to floor height provides benefits in both cost and aesthetics.

CASE #2

Optimizing Architectural Apartment Layout to Reduce Plumbing Cost

Project Location: San Jose, CA

Type: Multifamily

Net Internal Area: 147,000 ft²

Number of Apartments: 172

The building’s facade, insulation types, and window ratios are the most critical factors in calculating HVAC heating and cooling loads and the energy model.

In minutes our highly automated system calculated the heating and cooling loads, energy use, and daylight for hundreds of façade element combinations in this multifamily building.

The initial facade design was an 80% window-to-wall ratio.

SWAPP’s algorithms and analysis reduces construction costs and operating energy consumption, yet provide indoor comfort and daylight sDA that exceed sustainability metrics.

Optimizing Architectural Apartment Layout to Reduce Plumbing Cost

CASE #1

Piping modular assemblies designed and fabricated by Harris

Swapp’s in-house MEP engineers have 50 years of combined experience in MEP design, cost estimating, and construction.

We’ve partnered with Harris, one of the nation’s leading mechanical contractors, for consulting expertise from their highly skilled team specializing in design and engineering, construction, building automation, and manufacturing.

$1.34MM IN SAVINGS ON A MULTIFAMILY PROJECT

Swapp’s in-house MEP engineers have 50 years of combined experience in MEP design, cost estimating, and construction.

We’ve partnered with Harris, one of the nation’s leading mechanical contractors, for consulting expertise from their highly skilled team specializing in design and engineering, construction, building automation, and manufacturing.

Swapp’s MEP engineers and software developers have created algorithms powered by artificial intelligence and data to deliver optimal cost and performance design solutions.

We use highly automated load and energy modeling calculations, developed with expert review by the Harris engineering team.

With a click of a button, our systems can, in minutes, calculate hundreds of variables to arrive at the optimal cost and performance design solutions for a client’s project.

MEP and architecture are integrated into our systems. Real estate developers can make highly informed decisions in days instead of waiting weeks or even months.

Our design services, driven by artificial intelligence, give client’s the power to start and finish months faster.

Highly Automated Process 

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