Home / Residential 428 GREENWICH STREET, MANHATTAN ARCHITECT . Thomas R. Jackson PROJECT SIZE . About 5,500 SF PROJECT COST . $2.5 million SCOPE . Full MEP/FP design Go 428 GREENWICH STREET, MANHATTAN Full gut renovation of a landmarked townhouse located in the historic Tribeca North District. This 5-story, nineteen-foot-wide store and loft building was designed in 1883 by Thomas R. Jackson, an architect who worked extensively in the Tribeca area, for soap manufacturer James Pyle. The utilitarian Romanesque Revival design features red brick façade with rock-faced granite elements, corbelled brick cornice and cast-iron piers. Presently the building houses a Tokyo-style “Edo-mae” Sushi restaurant, which was awarded a single Michelin star in 2014. The upper floors of the building are being converted to a single family residence. Altera Engineering carried upgrades to power, water, sewer utility connections. Altera Engineering worked closely with architects to seal and insulate the original walls in order to minimize the occupants’ dependence on HVAC for comfort. Our engineers worked carefully integrated central heating and cooling systems above the ceilings and behind walls. The building is cooled and heated by a variable-refrigerant-volume system without the use of fossil fuels.

Home / Residential 347 WEST END AVENUE ARCHITECT . Lamb & Rich PROJECT SIZE . PROJECT COST . SCOPE . MEP engineering design Go 347 WEST END AVENUE This Eclectic Renaissance/Revival building was designed with a limestone façade and gabled tile roof by famed architects Lamb & Rich as part of an original row of 14 houses in 1891. The home’s first owner was Charles F. Rand who made his fortune in the mining industry in Cuba and Spain. In the 1950’s, the property was converted to nine apartments, and now the new owners are converting back to a single family residence. The scope of the conversion included an additional set back fifth floor, with an elevator overrun, roof bulkhead, and copper and glass skylight atop it. The current three-story-tall projecting rear yard addition will be demolished and replaced with a four-story-tall rear yard addition. A Juliette balcony, clad in copper, will jut out just into the canopy of a 130- to 140-year-old cherry tree. This is Altera Engineering's third project along the historic West End Avenue, 915 West End Avenue and 309 West 86th Street. The Altera Engineering team worked closely with the architect to thoughtfully integrate new infrastructure into the existing historic shell. Altera Engineering provided MEP engineering design and approval services for all mechanical, plumbing and electrical systems.

City Point Tower 1 is one part of 1.8 million square foot development of new construction, including retail, residential, entertainment, and office space spurred by 2004 Downtown Brooklyn Plan. The City Point project sits on City-owned property at a highly visible location along Flatbush Avenue and serves as a gateway to the Downtown area. Bordered by Flatbush Avenue, Gold Street, and Dekalb Avenue. Tower 1 is a mixed-income 19-story 251-unit residential tower above a four floor retail podium. OWNER - Albee Tower 1 Owners LLC (BFC) Home / Multifamily CITY POINT TOWER PHASE ONE ARCHITECT . SCLE PROJECT SIZE . 270,000 SF PROJECT COST . $ 110 million SCOPE . Energy Code Progress Inspections Go Go City Point Tower 1 is one part of 1.8 million square foot development of new construction, including retail, residential, entertainment, and office space spurred by 2004 Downtown Brooklyn Plan. The City Point project sits on City-owned property at a highly visible location along Flatbush Avenue and serves as a gateway to the Downtown area. Bordered by Flatbush Avenue, Gold Street, and Dekalb Avenue. Tower 1 is a mixed-income 19-story 251-unit residential tower above a four floor retail podium. OWNER - Albee Tower 1 Owners LLC (BFC)

Home / Landmarks 347 WEST END AVENUE ARCHITECT . Lamb & Rich PROJECT SIZE . PROJECT COST . SCOPE . Morozov provided MEP engineering design and approval services for all mechanical, plumbing and electrical systems. Go Go This Eclectic Renaissance/Revival building was designed with a limestone façade and gabled tile roof by famed architects Lamb & Rich as part of an original row of 14 houses in 1891. The home’s first owner was Charles F. Rand who made his fortune in the mining industry in Cuba and Spain. In the 1950’s, the property was converted to nine apartments, and now the new owners are converting back to a single family residence. The scope of the conversion included an additional set back fifth floor, with an elevator overrun, roof bulkhead, and copper and glass skylight atop it. The current three-story-tall projecting rear yard addition will be demolished and replaced with a four-story-tall rear yard addition. A Juliette balcony, clad in copper, will jut out just into the canopy of a 130- to 140-year-old cherry tree. This is Altera Engineering's third project along the historic West End Avenue, 915 West End Avenue and 309 West 86th Street. The Altera Engineering team worked closely with the architect to thoughtfully integrate new infrastructure into the existing historic shell.

A new 31-unit luxury condominium building in Harlem. The building does not use natural gas or any other fuel for heating. The building is cooled and heated with a variable-refrigerant flow system in lieu of more conventional gas-fired boilers. Home / Multifamily 18 WEST 116TH STREET, NYC ARCHITECT . GF55 PROJECT SIZE . 50,000 GSF PROJECT COST . $14.5 million SCOPE . Full MEP design, and construction administration services, energy modeling and sustainability consulting services. HVAC, sprinkler, plumbing and electrical power design and construction administration, sustainability, façade optimization, energy modeling. Go Go A new 31-unit luxury condominium building in Harlem. The building does not use natural gas or any other fuel for heating. The building is cooled and heated with a variable-refrigerant flow system in lieu of more conventional gas-fired boilers.

This project, for New York City’s Department of Cultural Affairs, transformed a five-story historic former public school to better house four arts groups and one community-service organization. Built in 1894, PS 122 was originally a public school (hence the name). Since the 1970’s the building has been inhabited by a non-profit collaborative, daycare center and an AIDS drop in center. The primary objective of this project was to bring the building up to code and upgrade the mechanical and fire protection systems. Additionally the building needed significant reorganization and alterations to its interior spaces. The design scope included addition at the roof, to connect the means of egress at the fifth floor. The project was required to meet LL86 requirements. Mechanical systems included: A packaged air-cooled modular chiller plant designed with an 18-degree temperature difference to reduce pumping and piping Variable primary pumping A dedicated outdoor air system (DOAS) with energy recovery and demand-based ventilation controls Sensible-only 4-pipe fan coils Home / Cultural PS 122 COMMUNITY ARTS CENTER ARCHITECT . Deborah Berke Partners PROJECT SIZE . 50,000 GSF PROJECT COST . $ 32 million SCOPE . HVAC design Go Go This project, for New York City’s Department of Cultural Affairs, transformed a five-story historic former public school to better house four arts groups and one community-service organization. Built in 1894, PS 122 was originally a public school (hence the name). Since the 1970’s the building has been inhabited by a non-profit collaborative, daycare center and an AIDS drop in center. The primary objective of this project was to bring the building up to code and upgrade the mechanical and fire protection systems. Additionally the building needed significant reorganization and alterations to its interior spaces. The design scope included addition at the roof, to connect the means of egress at the fifth floor. The project was required to meet LL86 requirements. Mechanical systems included: A packaged air-cooled modular chiller plant designed with an 18-degree temperature difference to reduce pumping and piping Variable primary pumping A dedicated outdoor air system (DOAS) with energy recovery and demand-based ventilation controls Sensible-only 4-pipe fan coils

The current church building is part of a modern mixed-use development that combines a new worship sanctuary with affordable housing to address community needs in the area. Key details include: Construction Timeline: Building began in late summer 2021. As of the church's latest updates (into 2025), the project was nearing completion, with excitement around moving into the new facility. Sunday services are now held in the new space starting at 11:00 AM. Design and Purpose: The development includes a dedicated sanctuary for worship and five stories of low-income housing above it. This was envisioned as a collaborative effort to benefit both the church and the broader neighborhood along Hillside Avenue, helping to provide much-needed affordable units in a high-demand area. City Councilman Ydanis Rodríguez (representing Washington Heights, Inwood, and Marble Hill) highlighted the project's role in adding housing stock during groundbreaking events. Architectural Firm: The project was designed by AiF (likely Anderson Inouye + Fredericks), a firm specializing in community-focused architecture. They were commissioned to create a new worship facility tailored to the longstanding Baptist congregation in Inwood. Prior Location: Before the new build, the church operated from the same Hillside Avenue address (noted as 37-41 Hillside Ave in older records), suggesting the development may involve renovation or expansion of the existing site rather than a full relocation. The building emphasizes functionality for worship and community support, though specific architectural features (e.g., facade materials or capacity) are not detailed in public sources beyond its multi-story residential integration. Home / Cultural ROCKY MOUNTAIN BAPTIST CHURCH ARCHITECT . ARCHITECTURE IN FORMATION PROJECT SIZE . PROJECT COST . SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go The current church building is part of a modern mixed-use development that combines a new worship sanctuary with affordable housing to address community needs in the area. Key details include: Construction Timeline: Building began in late summer 2021. As of the church's latest updates (into 2025), the project was nearing completion, with excitement around moving into the new facility. Sunday services are now held in the new space starting at 11:00 AM. Design and Purpose: The development includes a dedicated sanctuary for worship and five stories of low-income housing above it. This was envisioned as a collaborative effort to benefit both the church and the broader neighborhood along Hillside Avenue, helping to provide much-needed affordable units in a high-demand area. City Councilman Ydanis Rodríguez (representing Washington Heights, Inwood, and Marble Hill) highlighted the project's role in adding housing stock during groundbreaking events. Architectural Firm: The project was designed by AiF (likely Anderson Inouye + Fredericks), a firm specializing in community-focused architecture. They were commissioned to create a new worship facility tailored to the longstanding Baptist congregation in Inwood. Prior Location: Before the new build, the church operated from the same Hillside Avenue address (noted as 37-41 Hillside Ave in older records), suggesting the development may involve renovation or expansion of the existing site rather than a full relocation. The building emphasizes functionality for worship and community support, though specific architectural features (e.g., facade materials or capacity) are not detailed in public sources beyond its multi-story residential integration.

Home / Hospitality HYATT PLACE MIDTOWN ARCHITECT . Peter Poon Architects PROJECT SIZE . 90,000 SF PROJECT COST . SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go Altera Engineering was engaged by another consultant to design efficient plumbing and sprinkler systems. The challenge was to design domestic water distribution system with equal pressure between the floors of a high-rise building. The solution was a two-zone water distribution system. The building has two (2) fire sprinkler/standpipe reserve roof tanks, which are being used as a primary feed for the special service fire pump.

The building is in the preconstruction phase, with permits filed in December 2018 for a six-story residential structure. Size and Units: The development will feature 5 residential units across six stories, with a total residential space of approximately 8,173 square feet. Each unit averages about 1,635 square feet, suggesting spacious condominiums. Building Specifications: The structure will stand 68 feet tall and have a total area of 10,790 square feet, including non-residential space. It will be built with a steel-base foundation. Developer and Architect: The project is owned by Dharshyni Peries of LLS Number 1 LLC, with Kimberly Brown of Strata Architects PLLC listed as the architect. Location Benefits: The site is directly across from the Clinton Community Garden and near Hell’s Kitchen Park. It’s also close to the 50th Street subway station, providing access to the C and E trains. Historically, the address was associated with a four-story building constructed in 1910, containing 4 units, as noted in older property valuation data. However, the current project indicates that this older structure has likely been replaced or significantly redeveloped into the new six-story condo building. Home / Multifamily 435 WEST 48TH STREET ARCHITECT . Strata Architects PLLC PROJECT SIZE . PROJECT COST . SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go The building is in the preconstruction phase, with permits filed in December 2018 for a six-story residential structure. Size and Units: The development will feature 5 residential units across six stories, with a total residential space of approximately 8,173 square feet. Each unit averages about 1,635 square feet, suggesting spacious condominiums. Building Specifications: The structure will stand 68 feet tall and have a total area of 10,790 square feet, including non-residential space. It will be built with a steel-base foundation. Developer and Architect: The project is owned by Dharshyni Peries of LLS Number 1 LLC, with Kimberly Brown of Strata Architects PLLC listed as the architect. Location Benefits: The site is directly across from the Clinton Community Garden and near Hell’s Kitchen Park. It’s also close to the 50th Street subway station, providing access to the C and E trains. Historically, the address was associated with a four-story building constructed in 1910, containing 4 units, as noted in older property valuation data. However, the current project indicates that this older structure has likely been replaced or significantly redeveloped into the new six-story condo building.

Home / Hospitality MARRIOTT COURTYARD HOTEL ON W 30TH STREET ARCHITECT . Peter Poon Architects PROJECT SIZE . 113,000 SF PROJECT COST . SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go Altera Engineering was engaged by another consultant to design efficient plumbing and sprinkler systems. The hotel developer challenged the design team to achieve LEED Gold certification. In order to achieve the Gold level, the building was provided with a combined heat and power plant consisting of two 50 kW, two gas-fired micro-turbines. CLIENT | Rodkine Cardinal Consulting Engineers

Van Cortlandt Green is a newly constructed 62,000-square foot affordable 86-studio rental building for seniors. The building is LEED Silver rated with 15% better energy and fuel consumption than regulated by the energy code. The building is operated by SelfHelp Community Services: one of the largest and most respected not-for-profit human service agencies in the New York metropolitan area providing a broad set of services to more than 20,000 elderly, frail, and vulnerable New Yorkers each year. Altera Engineering were retained to carry out design and construction services for adult day care facility in the ground and second floor. Home / Multifamily VAN CORTLANDT GREEN ADULT CARE FACILITY ARCHITECT . Dattner Architects (base building) | Fulcrum Proper PROJECT SIZE . 4,000 SF PROJECT COST . SCOPE . HVAC, sprinkler, plumbing and electrical power, fire alarm design Go Go Van Cortlandt Green is a newly constructed 62,000-square foot affordable 86-studio rental building for seniors. The building is LEED Silver rated with 15% better energy and fuel consumption than regulated by the energy code. The building is operated by SelfHelp Community Services: one of the largest and most respected not-for-profit human service agencies in the New York metropolitan area providing a broad set of services to more than 20,000 elderly, frail, and vulnerable New Yorkers each year. Altera Engineering were retained to carry out design and construction services for adult day care facility in the ground and second floor.

MARINER'S HARBOR COMMUNITY CENTER SCOPE . MEP design PROJECT COST . $6.1 million Home / Commercial MARINER'S HARBOR COMMUNITY CENTER ARCHITECT . Architecture In Formation PROJECT SIZE . 2,700 SF PROJECT COST . $6.1 million SCOPE . MEP design Go Go Located in the Mariner’s Harbor neighborhood, the currently unoccupied 2,715 SF community space is situated on the ground floor of Building Number 5 within the New York City Housing Authority’s Marnier’s Harbor Houses public housing complex, the westernmost public housing development in New York City. Built in 1954, the complex consists of 22 three- and six-story buildings containing 607 apartments housing 1,658 residents across a 21.75-acre site. The project included a complete renovation of the existing space including all finishes, fixtures, HVAC, fire alarm, plumbing, and lighting, and provided flexible, multi-purpose programming. Support spaces included accessible restrooms, a janitor’s closet, and an IT/server closet. Exterior work included replacement of the existing canopy, new doors with actuator and door bell, and new lighting. The program also included community gathering spaces with audio/visual capabilities, a computer lab, and a commercial kitchen. Mechanical systems included: • An all new high efficient all-electric multi-zone VRF system • Distributed ERV’s throughout the space • All new electrical distribution • All new domestic and sanitary plumbing