Home / Landmarks 915 WEST END AVENUE ARCHITECT . PROJECT SIZE . PROJECT COST . SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go 915 West End Avenue is a 120,000 SF 15-story multifamily building commissioned by a prolific upper west side builder Joseph Paterno (whose initials were inscribed above the entrance), designed by Rosario Candela and completed in 1922 at a cost of approximately $625,000. The building was designed in Renaissance Revival style, and is laid out as two wings around a central core with outer court. Boiler room, laundry facility, oil tank, and incoming services are located in the basement. Lobby and 94 apartments are located on floors 1 through 15. In 2015 the building was included into Riverside-West End Historic District Extension II, and is subject to certain Landmarks restrictions. Following the $ 85.5 million acquisition by a group of investors, Altera Engineering was retained to evaluate the existing heating, plumbing, gas and power distribution systems. Our engineers worked closely with the owner’s architects and marketing team to identify and carry out short payback upgrades to support the investors’ conversion and repositioning program to the ‘best-in-class’ multifamily rental. 915 West End Avenue is one of several Altera Engineering projects along the historic West End Avenue, 347 West End and 309 West 86th Street.

The Young Women’s Christian Association was founded in 1888. The goal of the organization was to provide a meeting place for young women who were employed in retail stores, as office workers and other occupations throughout Brooklyn. These young ladies could listen to lectures, concerts, enjoy the reading room, and receive Christian instruction, if so desired. It was the first major organization of its kind in Brooklyn to be entirely run by women. Home / Multifamily YWCA OF BROOKLYN ARCHITECT . PROJECT SIZE . 180,000 SF PROJECT COST . SCOPE . HVAC design, energy efficiency, CHP feasibility Go Go The Young Women’s Christian Association was founded in 1888. The goal of the organization was to provide a meeting place for young women who were employed in retail stores, as office workers and other occupations throughout Brooklyn. These young ladies could listen to lectures, concerts, enjoy the reading room, and receive Christian instruction, if so desired. It was the first major organization of its kind in Brooklyn to be entirely run by women.

Home / Landmarks EAST 10 STREET, MANHATTAN TOWNHOUSES ARCHITECT . Phil Toscano (architect of record) Beringer Architects (interior) PROJECT SIZE . Each townhouse is about 5,500 SF PROJECT COST . $5 million SCOPE . Full MEP/FP design Go Go Full gut renovation of two landmarked townhouses near historic Stuyvesant Street in Manhattan in St. Mark’s historic district. According to Landmarks Preservation Commission (LPC), 106 and 110 are two of three identical houses were built in 1867 by an Irish-American builder, James Mulry, at an estimated cost of $6,000. The three buildings were erected on the lots that Mr. Mulry leased from Hamilton Fish- the 16th Governor of New York State and the Secretary of State under Ulysses Grant. The buildings were designed in a late version of the Italianate style by D. & J. Jardine Architects. The segmental-arched doorways have stone cornico-slabs supported on vertical console brackets which, in turn, are carried on paneled pilasters. They are four stories high, above a basement, and all retain their stoops. They are all three surmounted by individual bracketed cornices which are aligned at the same level. The stone basement wall is carried up to sill height at the first floor with recessed stone panels under each window. Altera Engineering carried upgrades to power, water, sewer utility connections. Our engineers worked hand-in-hand with the interior architects to thoughtfully integrate central heating and cooling systems into the buildings.

30 West is a proposed new 100% affordable multifamily development. The site of the proposed Project is currently a municipal parking lot for community use, and the Village of Haverstraw has committed to enter into a 99-year ground lease with Westhab to facilitate the development. The Project will have a total of 79 units of affordable housing which will be priced at levels that are affordable to very low- and low-income tenants. It includes two levels of parking that will serve both building residents and the surrounding community. The Project is being developed through a public-private partnership with the Village of Haverstraw to address the growing challenge of high housing cost in Haverstraw and throughout Rockland County. 30 West will be a 100% affordable housing development with a focus on serving the hardest to reach members of the community. 23 of the units will be reserved for households at or below 30% of Rockland County’s Area Median Income (AMI), and between 15 and 20 of the 30% AMI units will be reserved as supportive housing units to serve formerly homeless individuals and families, individuals with mental health, and/or individuals with substance use disorders, among others. Services for the supportive units will be provided by Westhab, Inc, and referrals will be provided by Rockland County Continuum of Care, through the Department of Social Services and local community organizations. The remaining units in the Project will be designated for tenants earning up to 60% AMI. Residential amenities will include an on-site office for supportive services, a laundry room, a community room for tenant use, and an indoor/outdoor rooftop lounge overlooking the Hudson River and surrounding mountains. Through Westhab’s unique partnership with Cisco, the project will receive free hi-tech security and Wi-Fi equipment, lowering the cost of construction and providing free high-speed Wi-Fi to all residents. At the time of application, the Village did not have zoning regulations that would support the project. Working with the Village, we helped to draft a new zoning district that can be used for 30 West and for other affordable housing projects in the Village. Home / Multifamily 30 WEST, VILLAGE OF HAVERSTRAW ARCHITECT . Aufgang Architects PROJECT SIZE . PROJECT COST . SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go 30 West is a proposed new 100% affordable multifamily development. The site of the proposed Project is currently a municipal parking lot for community use, and the Village of Haverstraw has committed to enter into a 99-year ground lease with Westhab to facilitate the development. The Project will have a total of 79 units of affordable housing which will be priced at levels that are affordable to very low- and low-income tenants. It includes two levels of parking that will serve both building residents and the surrounding community. The Project is being developed through a public-private partnership with the Village of Haverstraw to address the growing challenge of high housing cost in Haverstraw and throughout Rockland County. 30 West will be a 100% affordable housing development with a focus on serving the hardest to reach members of the community. 23 of the units will be reserved for households at or below 30% of Rockland County’s Area Median Income (AMI), and between 15 and 20 of the 30% AMI units will be reserved as supportive housing units to serve formerly homeless individuals and families, individuals with mental health, and/or individuals with substance use disorders, among others. Services for the supportive units will be provided by Westhab, Inc, and referrals will be provided by Rockland County Continuum of Care, through the Department of Social Services and local community organizations. The remaining units in the Project will be designated for tenants earning up to 60% AMI. Residential amenities will include an on-site office for supportive services, a laundry room, a community room for tenant use, and an indoor/outdoor rooftop lounge overlooking the Hudson River and surrounding mountains. Through Westhab’s unique partnership with Cisco, the project will receive free hi-tech security and Wi-Fi equipment, lowering the cost of construction and providing free high-speed Wi-Fi to all residents. At the time of application, the Village did not have zoning regulations that would support the project. Working with the Village, we helped to draft a new zoning district that can be used for 30 West and for other affordable housing projects in the Village.

Home / Landmarks 712 BROADWAY ARCHITECT . PROJECT SIZE . PROJECT COST . SCOPE . MEP engineering design and approval services Go Go 712 Broadway is an 8-story landmarked building located in NoHo (North of Houston) historic district. The iron frame, granite and terra-cotta building was constructed as a warehouse in 1893 for the Scholle Brothers. The commercial building designed by Alfred Zucker replaced an 1803 3-story Federal-style mansion, which the Scholle Brothers bought for $88,000 in 1890. NoHo saw its first development by the first decade of the 19th century when John Jacob Astor acquired a large tract of land between Great Jones Street and Art Street (now Astor Place). From 1820 to 1840 the area developed as a fashionable residential district lined with lavish Federal and Greek Revival style residences. New York University was founded in 1831 in nearby Washington Square. Altera Engineering provided MEP engineering design and approval services for a loft apartment, working closely with architects and owners to integrate state-of-the-art mechanical systems into the existing historic features of the apartments.

Home / Hospitality 52-09 31ST PLACE, LONG ISLAND CITY, NY ARCHITECT . ARC ARCHITECTURE + DESIGN STUDIO, PLLC PROJECT SIZE . 112,000 SF PROJECT COST . NA SCOPE . plumbing and fire protection systems Go Go Altera Engineering has designed the plumbing and fire protection systems for this building.

A 6-story, 63-unit supportive housing project in Nodine Hill neighborhood of Yonkers developed by Westhab Inc. Yonkers-based Westhab is a community development, social and housing services organization that builds and manages high-quality affordable and supportive housing in Westchester County and New York City. To date Westhab has developed over 900 units of housing with an investment of over $134 million Dayspring Commons will consist of four one-bedrooms, 45 two-bedrooms and three three-bedrooms. Formerly homeless people are expected to occupy 30 of the units; 10 of those apartments will target young adults with children and 20 of those units will target families with a mentally disabled head of household. Another 21 units will be affordable housing for families that earn less than 50 percent of the area median income for Westchester County. The proposed complex would sit next to the former Good Shepherd Presbyterian Church at 203 Elm St. The church is currently being renovated by Westhab and it is now called the Dayspring Community Center. Buildings’ mechanical systems include high efficiency condensing boilers designed to operate with low temperature water. Variable speed pumps, high output baseboard radiators, energy recovery ventilators and variable refrigerant flow systems for common areas. The building was provided with a gas-fired emergency generator. The project is designed to meet the latest Enterprise Green Communities requirements for energy and water conservation, resident health and well-being and resiliency. The buildings are at least 15% more energy efficient than the current energy code. Home / Multifamily DAYSPRING COMMONS, 227 ELM, YONKERS ARCHITECT . Aufgang Architects PROJECT SIZE . 65,000 SF PROJECT COST . $ 45,000,000 SCOPE . HVAC, sprinkler, plumbing and electrical power, fire alarm design and construction administration Go Go A 6-story, 63-unit supportive housing project in Nodine Hill neighborhood of Yonkers developed by Westhab Inc. Yonkers-based Westhab is a community development, social and housing services organization that builds and manages high-quality affordable and supportive housing in Westchester County and New York City. To date Westhab has developed over 900 units of housing with an investment of over $134 million Dayspring Commons will consist of four one-bedrooms, 45 two-bedrooms and three three-bedrooms. Formerly homeless people are expected to occupy 30 of the units; 10 of those apartments will target young adults with children and 20 of those units will target families with a mentally disabled head of household. Another 21 units will be affordable housing for families that earn less than 50 percent of the area median income for Westchester County. The proposed complex would sit next to the former Good Shepherd Presbyterian Church at 203 Elm St. The church is currently being renovated by Westhab and it is now called the Dayspring Community Center. Buildings’ mechanical systems include high efficiency condensing boilers designed to operate with low temperature water. Variable speed pumps, high output baseboard radiators, energy recovery ventilators and variable refrigerant flow systems for common areas. The building was provided with a gas-fired emergency generator. The project is designed to meet the latest Enterprise Green Communities requirements for energy and water conservation, resident health and well-being and resiliency. The buildings are at least 15% more energy efficient than the current energy code.

ARK OF RETURN Permanent Memorial at the United Nations in Honor of the Victims of Slavery and the Transatlantic Slave Trade Rodney Leon won an international UNESCO design competition to erect a memorial to commemorate victims of the Atlantic slave trade. Here’s how the designer talks about the process: ”The Ark of Return” memorial is a sacred space that is designed to psychologically and spiritually transport visitors to a place where acknowledgement, education, reflection and healing can take place. The memorial’s exterior form is constructed in a fashion to reflect the image of a vessel or ship in acknowledgement of the millions of African people transported on slave ships to different parts of the world during the “Middle Passage.” Images of maps depicting the “Triangular Slave Trade” influenced the use of the triangle as a primary element in designing the memorial’s shape. The memorial is conceptually also organized in three parts and visitors are meant to pass through “The Ark of Return” to intimately experience three primary elements on the interior space. The first element is a three dimensional map inscribed on the interior of the memorial. This map highlights the African continent at its center and graphically depicts the global scale, complexity and impact of the triangular slave trade in “acknowledgement of the tragedy.” The second element is full-scale human figure lying horizontally in front of a wall inscribed with images of the interior of a slave ship. This is meant to communicate and educate visitors on the physical conditions endured by the millions of African people transported under extreme conditions during the middle passage. The visitors are provided the opportunity to seriously “consider the legacy” of slavery’s impact upon humanity. The third element is a triangular reflecting pool, which introduces water in a meditative, ritualistic and spiritual manner. Visitors are invited to pour libations or say a prayer in memory of the millions of souls that were lost “lest we forget” this monumental and historic tragedy. Altera Engineering were invited to advice the design team at the concept stage. The firm’s engineers were tasked with collaborating with the contractor for the General Assembly renovation in locating and bringing power and water to the sculpture of the Ark. Home / Cultural UNITED NATIONS PERMANENT MEMORIAL ARCHITECT . Rodney Leon Architects PROJECT SIZE PROJECT COST SCOPE . Full MEP design and construction administration services. Plumbing and electrical power, construction administration Go Go ARK OF RETURN Permanent Memorial at the United Nations in Honor of the Victims of Slavery and the Transatlantic Slave Trade Rodney Leon won an international UNESCO design competition to erect a memorial to commemorate victims of the Atlantic slave trade. Here’s how the designer talks about the process: ”The Ark of Return” memorial is a sacred space that is designed to psychologically and spiritually transport visitors to a place where acknowledgement, education, reflection and healing can take place. The memorial’s exterior form is constructed in a fashion to reflect the image of a vessel or ship in acknowledgement of the millions of African people transported on slave ships to different parts of the world during the “Middle Passage.” Images of maps depicting the “Triangular Slave Trade” influenced the use of the triangle as a primary element in designing the memorial’s shape. The memorial is conceptually also organized in three parts and visitors are meant to pass through “The Ark of Return” to intimately experience three primary elements on the interior space. The first element is a three dimensional map inscribed on the interior of the memorial. This map highlights the African continent at its center and graphically depicts the global scale, complexity and impact of the triangular slave trade in “acknowledgement of the tragedy.” The second element is full-scale human figure lying horizontally in front of a wall inscribed with images of the interior of a slave ship. This is meant to communicate and educate visitors on the physical conditions endured by the millions of African people transported under extreme conditions during the middle passage. The visitors are provided the opportunity to seriously “consider the legacy” of slavery’s impact upon humanity. The third element is a triangular reflecting pool, which introduces water in a meditative, ritualistic and spiritual manner. Visitors are invited to pour libations or say a prayer in memory of the millions of souls that were lost “lest we forget” this monumental and historic tragedy. Altera Engineering were invited to advice the design team at the concept stage. The firm’s engineers were tasked with collaborating with the contractor for the General Assembly renovation in locating and bringing power and water to the sculpture of the Ark.

Home / Residential 133 EAST 91ST STREET TOWNHOUSE, NEW YORK ARCHITECT . Ben Fuqua PROJECT SIZE . About 4,500 SF PROJECT COST . $ 5 million SCOPE . Full MEP/FP design and construction administration services Go 133 EAST 91ST STREET TOWNHOUSE, NEW YORK A full gut renovation and conversion of a multifamily building into a single family townhouse. 133 East 91st Street is one of six identical Queen Anne rowhouses completed in 1896 for a local developer John Weber. The building retains its original façade of red brick and brownstone along with a raised stoop and paved entry court, and a 20-ft rear garden. Altera Engineering worked hand in hand with the architect to seamlessly integrate all new heating/cooling and other building infrastructure into 17.5-foot wide existing shell. Altera Engineering consulted the owner on high performance building strategies, such as passive heating and cooling, insulation and envelope air-tightness, highly efficient domestic water heating and continuous ventilation with energy recovery. With the exception of domestic water heating, the building does not use natural gas or any other fuel for heating, and is cooled and heated with a variable-refrigerant flow system. Highly insulated envelope, and not relying on gas for heating are expected to save 20 metric tons of Carbon Dioxide emissions on an annual basis.

Bentonville, AR Full design and construction administration of mechanical systems for a multi-purpose museum with strict (ASHRAE Class AA) conservation requirements. 9 separate buildings included galleries, library, archival storage, offices, small data center, auditorium and restaurant. Mechanical systems consisted of 1,200 ton optimized chiller plant, 9700 MBH fully modulating condensing boiler plant, steam plant, 30 custom air handling units with both overhead and floor air distribution systems. Challenge: optimized chiller plant that can operate at or below 0.5 kw per ton while maintaining aggressive conservation environment. Solution: equipment selections to operate at highest efficiencies and customized control sequence. Mr. Morozov was MEP project lead while employed by BuroHappold. Mr. Morozov was responsible for all HVAC design and coordination of Plumbing, Sprinkler and Electrical trades. Home / Cultural CRYSTAL BRIDGES MUSEUM OF AMERICAN ART ARCHITECT . PROJECT SIZE . PROJECT COST . SCOPE . Design, approvals and construction administration of Mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go Bentonville, AR Full design and construction administration of mechanical systems for a multi-purpose museum with strict (ASHRAE Class AA) conservation requirements. 9 separate buildings included galleries, library, archival storage, offices, small data center, auditorium and restaurant. Mechanical systems consisted of 1,200 ton optimized chiller plant, 9700 MBH fully modulating condensing boiler plant, steam plant, 30 custom air handling units with both overhead and floor air distribution systems. Challenge: optimized chiller plant that can operate at or below 0.5 kw per ton while maintaining aggressive conservation environment. Solution: equipment selections to operate at highest efficiencies and customized control sequence. Mr. Morozov was MEP project lead while employed by BuroHappold. Mr. Morozov was responsible for all HVAC design and coordination of Plumbing, Sprinkler and Electrical trades.

712 Broadway is an 8-story landmarked building located in NoHo (North of Houston) historic district. The iron frame, granite and terra-cotta building was constructed as a warehouse in 1893 for the Scholle Brothers. The commercial building designed by Alfred Zucker replaced an 1803 3-story Federal-style mansion, which the Scholle Brothers bought for $88,000 in 1890. NoHo saw its first development by the first decade of the 19th century when John Jacob Astor acquired a large tract of land between Great Jones Street and Art Street (now Astor Place). From 1820 to 1840 the area developed as a fashionable residential district lined with lavish Federal and Greek Revival style residences. New York University was founded in 1831 in nearby Washington Square. Altera Engineering provided MEP engineering design and approval services for a loft apartment, working closely with architects and owners to integrate state-of-the-art mechanical systems into the existing historic features of the apartments. Home / Multifamily 712 BROADWAY ARCHITECT . PROJECT SIZE . PROJECT COST . SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go 712 Broadway is an 8-story landmarked building located in NoHo (North of Houston) historic district. The iron frame, granite and terra-cotta building was constructed as a warehouse in 1893 for the Scholle Brothers. The commercial building designed by Alfred Zucker replaced an 1803 3-story Federal-style mansion, which the Scholle Brothers bought for $88,000 in 1890. NoHo saw its first development by the first decade of the 19th century when John Jacob Astor acquired a large tract of land between Great Jones Street and Art Street (now Astor Place). From 1820 to 1840 the area developed as a fashionable residential district lined with lavish Federal and Greek Revival style residences. New York University was founded in 1831 in nearby Washington Square. Altera Engineering provided MEP engineering design and approval services for a loft apartment, working closely with architects and owners to integrate state-of-the-art mechanical systems into the existing historic features of the apartments.

A new 60-unit affordable multifamily building in the Bronx. A first construction project of this size for Habitat for Humanity. The $18 million development, located at 839-843 Tilden St., is in the Williamsbridge section of the Bronx. The seven-story building has one-, two- and three-bedroom co-op apartments. The building includes a parking garage and communal areas. The project is financed by the New York city Acquisition Fund, New York State Affordable Housing Corporation (ACH), HPD New Infill Homeownership Program (NIHOP) and New York State Housing Trust Fund Corporation Buildings’ mechanical systems include high efficiency condensing boilers designed to operate with low temperature water. Packages Terminal Air Conditioning units with smart controls. Variable speed pumps, energy recovery ventilators and variable refrigerant flow systems. The project is designed to meet the latest Enterprise Green Communities requirements for energy and water conservation, resident health, wellbeing and resiliency. The buildings are at least 15% more energy efficient than the current energy code. Home / Multifamily SYDNEY HOUSE ARCHITECT . Union Street Studio PROJECT SIZE . 70,000 GSF $ PROJECT COST . 18,000,000 SCOPE . Full MEP design, and construction administration services. HVAC, sprinkler, plumbing and electrical power, fire alarm design and construction administration Go Go A new 60-unit affordable multifamily building in the Bronx. A first construction project of this size for Habitat for Humanity. The $18 million development, located at 839-843 Tilden St., is in the Williamsbridge section of the Bronx. The seven-story building has one-, two- and three-bedroom co-op apartments. The building includes a parking garage and communal areas. The project is financed by the New York city Acquisition Fund, New York State Affordable Housing Corporation (ACH), HPD New Infill Homeownership Program (NIHOP) and New York State Housing Trust Fund Corporation Buildings’ mechanical systems include high efficiency condensing boilers designed to operate with low temperature water. Packages Terminal Air Conditioning units with smart controls. Variable speed pumps, energy recovery ventilators and variable refrigerant flow systems. The project is designed to meet the latest Enterprise Green Communities requirements for energy and water conservation, resident health, wellbeing and resiliency. The buildings are at least 15% more energy efficient than the current energy code.