Bay Area Residential/Mixed Use

Dave,

We have put together this web tour for you. It features some of Langan’s recent multi-family and mixed-use projects in the Bay Area. We look forward to working with you on future projects. Thank you. 

Vitina Mandella, P.E., LEED AP, QSP/D

Thanh Nguyen, LEED AP

Silvery Towers

OVERVIEW
Silvery Towers is a residential development in downtown San Jose. The project features two towers, 22 and 20 stories, above three basement levels, offering retail and residential space, including 643 apartment units and associated parking. The three basement levels required excavation of 34 to 38 feet below street grade. Langan provided multi-disciplinary engineering services for design and construction of the project. Data from the geotechnical investigation was used to reduce field exploration costs. We performed field observation and provided weekly reports regarding stormwater compliance per the Storm Water Pollution Prevention Program (SWPPP).

Location
San Jose, California

Client
Full Power Properties, LLC

Services
Site/Civil
Environmental
Geotechnical


3877 El Camino

OVERVIEW
Plans for 3877 El Camino are to develop a mixed-use podium-style building with 11,000 SF of retail space, 17 residential units, and an underground garage. As the site/civil engineer, Langan provided site layout, grading, and utility and stormwater management design services. Working with the City of Palo Alto's utility and stormwater departments, we coordinated off-site infrastructure upgrades and designs to meet project demands. Part of our scope includes addressing the City of Palo Alto's comments on stormwater hydraulics and hydrology and stormwater treatment. We are implementing an integrated approach — with input from the entire design team — to divert storm waters into biofiltration planters instead of directly into storm drain systems, which was part of the initial design.

Location
Palo Alto, California

Client
Zijin LLC

Service
Site/Civil

Architect
EID Architects


75 Howard

OVERVIEW
Plans for 75 Howard are to build a 20-story residential building with 133 units, 102 below-ground parking spaces and 123 bicycle parking spaces. The building will also feature 5,824 SF of ground-floor retail space. A 7-story parking garage with one partially below-grade level currently occupies the site. One important aspect of our services will be to lead the stormwater management design. As the site is tributary to the City of San Francisco combined sewer system, the project will be required to reduce peak stormwater quantity, both flow and volume, to meet the requirements of the Stormwater Management Ordinance. Langan has also performed a preliminary geotechnical evaluation and an environmental site characterization for the site.

Location
San Francisco, California

Client
Paramount Group, Inc

Services
Site/Civil
Environmental
Geotechnical

Architect
Skidmore, Owings & Merrill LLP (SOM)


645 Texas

OVERVIEW
Langan provided site/civil and environmental engineering services for the 91-unit, 4- 5- story residential building with below-grade parking. It is on the edge of the Potrero Hill and Dog Patch neighborhoods. Various commercial and residential buildings formerly occupied the unique trapezoidal lot. This project had several technical challenges, including steep slopes along Texas and Mississippi streets and a water line, extending along Texas Street, which must meet San Francisco Fire Department standards.

Location
San Francisco, California

Client
Trumark Urban

Services
Site/Civil
Environmental

Architect
BDE Architecture


875 California

OVERVIEW
Langan is providing multi-disciplinary engineering services for the construction of a multi-story residential building with below-grade parking, replacing a surface parking lot and 2-story concrete garage. Located on Nob Hill, the 15,548 SF site has very steep slopes and an elevation range exceeding 20 feet across the site. Once built, the project will offer 44 condominiums with landscaped gardens and roof terraces.

Location
San Francisco, California

Client
Grosvenor

Services
Site/Civil
Environmental
Geotechnical

Architect
BDE Architecture


385 14th Street

OVERVIEW
This block-sized development at 385 14th Street is part of the Lake Merritt Station Area Plan. It consists of a 40-story residential tower with ground-floor retail and a 5-story wood-frame apartment building on top of a concrete podium. Langan’s site/civil engineering team is responsible for the streetscape design, stormwater management design, utility infrastructure design, and coordination for the project. Our geotechnical team conducted several investigations and performed extensive analysis to evaluate settlement. We also developed site-specific ground motions for seismic design. Langan’s site lighting specialists provided streetscape lighting design.

Location
Oakland, CA

Client
Carmel Partners

Services
Site/Civil
Geotechnical
Landscape Architecture
Earthquake/Seismic

Architect
Solomon Cordwell Buenz (SCB)


Mountain View at Middlefield (555 West Middlefield)

OVERVIEW
This 7-acre multifamily residential project — including a community center and a park — is an addition to low-density residential buildings built on this 14.5-acre campus. The infill development will create two residential lots with 345 residences, 974 parking spaces, 150,000 SF of open space, and 25,000 SF of residential amenity space. Per an agreement with the City of Mountain View, a 1.48 acre park will be given to the city for a community benefit. The project is pursuing LEED for Homes certification as well as various sustainable measures. Our site/civil team is providing services for a new bike lane, city-owned trail, the site/sidewalk layout, grading of off-site site/sidewalks and at-grade level podium courtyards, drainage, utilities, and stormwater management. Our geotechnical team is evaluating subsurface conditions and potential geologic hazards at the site. while our environmental team completed a Phase I Environmental Site Assessment (ESA).

Location
Mountain View, California

Client
AvalonBay Communities, Inc.

Services
Site/Civil
Geotechnical
Environmental

Architect
BDE Architecture


Mission Bay 360 | Blocks 5 & 11

OVERVIEW
The two distinct apartment communities for Mission Bay 360 contain 4 stories over retail and parking space. Altogether, this $189 million project adds 360 apartment units to the neighborhood, as well as retail and common space amenities. Total GSF is 396,200. Langan performed a geotechnical investigation, conducted Phase I and II Environmental Site Assessments (ESAs), designed the methane mitigation system, and prepared the Storm Water Pollution Prevention Plan (SWPPP) and the Soil Erosion and Sediment Control Plan.

Location
San Francisco, California

Client
An Essex Company (formerly BRE Properties)

Services
Site/Civil
Geotechnical
Environmental


EASTLINE (2100 Telegraph Avenue)

OVERVIEW
The planned mixed-use project at 2100 Telegraph will occupy the entire 3.2-acre block, making it one of the largest developable sites in downtown Oakland. Running beneath the site are three concrete tunnel box structures that contain Bay Area Rapid Transit's (BART) rail lines. Langan evaluated the soil and groundwater conditions at the site and developed conclusions and recommendations regarding the site seismicity and seismic hazards, probable foundation types for the new structure(s), foundation settlement behavior, floor slab support, construction considerations, and seismic design criteria in accordance with the 2013 California Building Code. Langan's civil engineering services included performing boundary and topographic surveys and support the project through the initial Planning Application of the project.

Location
Oakland, California

Client
Lane Partners & Strategic Urban Development Alliance

Services
Geotechnical
Site/Civil
Earthquake/Seismic

Architect
Gensler

Strategic Partner
Magnusson Klemencic Associates (MKA)


399 Fremont Street

OVERVIEW
The 42-story tower and 9-story podium over one and two basement levels encompasses three parcels in downtown San Francisco. Langan's tasks include updating the geotechnical investigation report and site-specific seismic design criteria to the current building code as well as performing an environmental site characterization and site/civil engineering at the site.
AWARDS
2016 Engineering News Record Global Best Projects, Residential/Hospitality Award of Merit
2016 Engineering News Record California Best Projects, Residential/Hospitality Best Project

Location
San Francisco, CA

Client
SCB (Solomon Cordwell Buenz)

Services
Geotechnical
Site/Civil
Environmental

Architect
SCB (Solomon Cordwell Buenz)


Related Santa Clara

OVERVIEW
The overall redevelopment site is the 240-acre former Santa Clara all-purpose landfill, and project plans are for a mixed-use development that includes office, hotel, retail, restaurant, entertainment, residential, and parking space. We are providing integrated site/civil, geotechnical, and environmental services for all project phases.

Location
Santa Clara, CA

Clients
Related Urban
City of Santa Clara, California

Services
Site/Civil
Environmental
Geotechnical


950 Market

OVERVIEW
The existing building at 950 Market is being demolished to construct a 12-story development that consists of a hotel, residential units, and retail. Langan is providing multi-disciplinary services. Because the structure comprises the majority of the site, an important aspect of our site/civil engineering services is the stormwater management design. The site is adjacent to BART and MUNI tunnels, which was a key consideration in providing appropriate recommendations for foundation and shoring design. The development is subject to San Francisco's Article 22A (Maher) Ordinance, which requires that site history and soil sampling be performed. 

Location
San Francisco, CA

Client
Group i

Services
Site/Civil
Geotechnical
Environmental

Architect
Handel Architects


Selected Projects