Altera Engineering Multifamily Projects Our Projects Multifamily 2560 BOSTON ROAD EBENEZER PLAZA, BROOKLYN, NY 326 ROCKAWAY AVENUE 37 HILLSIDE AVE, NEW YORK, NY TIMBALE TERRACE 30 WATER STREET, OSSINING 30 WEST, VILLAGE OF HAVERSTRAW EAST TREMONT COMMUNITY DISTRICT 6, BRONX CENTRIC WOODSIDE NYC THE POPE FRANCIS APARTMENTS AT LORETO WALTON AVENUE 230 EAST 18TH STREET, BROOKLYN VAN CORTLANDT GREEN ADULT CARE FACILITY 776 MYRTLE, BROOKLYN 18 WEST 116TH STREET, NYC 435 WEST 48TH STREET 554 PROSPECT PLACE 1062 HANCOCK STREET, BROOKLYN 149-151 WEST 9TH STREET 31 LISPENARD 915 WEST END AVENUE CITY POINT TOWER PHASE ONE SYDNEY HOUSE 733 OCEAN PARKWAY THE PARASOL PROJECT 712 BROADWAY 325 WEST 93RD STREET YWCA OF BROOKLYN ROCHESTER SUYDAM NIHOP 144 WEST STREET, GREENPOINT, BROOKLYN 2457 FREDERICK DOUGLASS BOULEVARD 309 WEST 86TH STREET DAYSPRING COMMONS, 227 ELM, YONKERS ONE DROMORE APARTMENTS PARK EDGE THE NORMA on FULTON STREET STEWART HOTEL 67 MESEROLE STREET 2031 EASTERN PARKWAY

Altera Engineering Healthcare Projects Our Projects Healthcare ST JOHN'S EPISCOPAL HOSPITAL (SJEH)

Altera Engineering Commercial Projects Our Projects Commercial THE OASIS CITY POINT TOWER PHASE ONE ALEXIS BITTAR INC, INDUSTRY CITY 2 BUSHWICK AVENUE ROGERS AVENUE OFFICE BUILDING 233 BUTLER STREET, GOWANUS, BROOKLYN 5 EAST 57TH STREET BROOKLYN ROASTING COMPANY 621 WEST 55TH STREET 79 WALKER STREET AU CHEVAL NEW YORK BRICK NEW YORK BROADWAY VISION COCKTAIL BODEGA DUTCH KILLS OFFICE BUILDING EAST 55TH STREET FASHION TOWER GALLANT BUILDING HARLEM PROPERTIES MARINER'S HARBOR COMMUNITY CENTER THE CHIEF CLUBHOUSE THE COLONY CLUB

Altera Engineering Residential Projects Our Projects Residential 535 PARK AVENUE: MULTIPLE APARTMENTS 848 CARROLL STREET, BROOKLYN ST KITTS VILLA PHILLIPSPORT CHURCH HOUSE 347 WEST END AVENUE 138 NORTH 1ST STREET, BROOKLYN, NY 428 GREENWICH STREET, MANHATTAN 133 EAST 91ST STREET TOWNHOUSE, NEW YORK 42 SHARON STREET, BROOKLYN EAST 10 STREET, MANHATTAN TOWNHOUSES

Altera Engineering Hospitality Projects Our Projects Hospitality DELAMAR MYSTIC HYATT PLACE MIDTOWN EXECUTIVE LE SOLEIL HOTEL MARRIOTT COURTYARD HOTEL ON W 30TH STREET 52-09 31ST PLACE, LONG ISLAND CITY, NY

Altera Engineering Landmarks Projects Our Projects Landmarks THE COLONY CLUB 325 WEST 93RD STREET 428 GREENWICH STREET, MANHATTAN 712 BROADWAY 133 EAST 91ST STREET TOWNHOUSE, NEW YORK 309 WEST 86TH STREET EAST 10 STREET, MANHATTAN TOWNHOUSES 347 WEST END AVENUE 848 CARROLL STREET, BROOKLYN 79 WALKER STREET 915 WEST END AVENUE BROOKLYN ROASTING COMPANY

Altera Engineering Cultural Projects Our Projects Cultural PARRISH ART MUSEUM PS 122 COMMUNITY ARTS CENTER UNITED NATIONS PERMANENT MEMORIAL YWCA OF BROOKLYN MARINER'S HARBOR COMMUNITY CENTER ROCKY MOUNTAIN BAPTIST CHURCH CRYSTAL BRIDGES MUSEUM OF AMERICAN ART STEWART HOTEL

A new 25-unit luxury rental building on Greenpoint’s waterfront. The project contains a total of 13 studios, 10 one-bedrooms, and a pair of two-bedroom units. 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. Hot water for domestic use is generated via refrigerant-based heat pump water heaters. Not relying on gas for heating approach will save 150 metric tons of Carbon Dioxide emissions. Home / Multifamily 144 WEST STREET, GREENPOINT, BROOKLYN ARCHITECT . GF55 PROJECT SIZE . 21,700 SF PROJECT COST . SCOPE . Full MEP design and construction administration services. HVAC, sprinkler, plumbing and electrical power design and construction administration Go Go A new 25-unit luxury rental building on Greenpoint’s waterfront. The project contains a total of 13 studios, 10 one-bedrooms, and a pair of two-bedroom units. 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. Hot water for domestic use is generated via refrigerant-based heat pump water heaters. Not relying on gas for heating approach will save 150 metric tons of Carbon Dioxide emissions.

Home / Residential 42 SHARON STREET, BROOKLYN ARCHITECT . nC2 Architecture LLC PROJECT SIZE . 3,600 SF PROJECT COST . SCOPE . full MEP/FP design and construction administration services Go 42 SHARON STREET, BROOKLYN A ground up construction of a single family home in Brooklyn. Altera Engineering was retained as a project’s MEP engineer in part because the building’s complex interior geometry required a thoughtful approach that most small MEP firms lack. Altera Engineering consulted the owner on high performance building strategies, such as passive heating and cooling, insulation and envelope air-tightness, intelligent lighting controls, 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 fuel free heating are expected to save 15 metric tons of Carbon Dioxide emissions on an annual basis. Altera Engineering efficiently and successfully secured utility connection approvals and assisted the client in resolving filing and approval issues.

A new 26-unit luxury rental building in Prospect Park South neighborhood of Brooklyn. The project contains a total of 13 studios, 10 one-bedrooms, and a pair of two-bedroom units. The building does not use natural gas or any other fossil fuel for heating. The building is cooled and heated with a variable-refrigerant flow system in lieu of more conventional gas-fired boilers. Not relying on gas for heating approach is expected to save 150-200 metric tons of Carbon Dioxide emissions. In addition to efficient heating and cooling, the building’s fresh air is brought in via an energy-recovery ventilator (ERV). The ERV passively cools or heats the incoming fresh outdoor air by capturing energy of the indoor conditioned air. Home / Multifamily 230 EAST 18TH STREET, BROOKLYN ARCHITECT . Aufgang PROJECT SIZE . 24,500 SF PROJECT COST . Withheld SCOPE . HVAC, sprinkler, plumbing and electrical power design and construction administration Go Go A new 26-unit luxury rental building in Prospect Park South neighborhood of Brooklyn. The project contains a total of 13 studios, 10 one-bedrooms, and a pair of two-bedroom units. The building does not use natural gas or any other fossil fuel for heating. The building is cooled and heated with a variable-refrigerant flow system in lieu of more conventional gas-fired boilers. Not relying on gas for heating approach is expected to save 150-200 metric tons of Carbon Dioxide emissions. In addition to efficient heating and cooling, the building’s fresh air is brought in via an energy-recovery ventilator (ERV). The ERV passively cools or heats the incoming fresh outdoor air by capturing energy of the indoor conditioned air.

Timbale Terrace is located on the parking lot of the NYPD 25th precinct and within the confines of the Special East Harlem Corridors District, which was designated for rezoning in the 2017 East Harlem Rezoning plan to bring 4000 affordable homes to the 96 block area, roughly bounded by East 104th Street to East 132nd Street, between Fifth Avenue and the East River Timbale Terrace will be a 19 story residential building featuring 340 affordable units, including 99 supportive housing units. The development will be constructed on a lot currently used for parking by the 25th Precinct. The building's affordable units will serve households earning between 30% and 80% of the area median income (AMI), while the supportive housing units will be designated for formerly homeless individuals and families. Lantern will provide on site supportive services. Residents will have access to a range of amenities, including rooftop terraces, a fitness and cycling room, community spaces, meeting rooms, and a community pantry. The ground floor will house the Afro Jazz Alliance Music and Arts Center, which will serve as the venue for all of the Alliance’s performances. Supportive housing at Timbale Terrace provides permanent, affordable housing with onsite services for individuals and families who have experienced homelessness and meet specific eligibility criteria. The development is receiving funding through the NYC 15/15 and Extremely Low & Low Income Affordability (ELLA) programs. Supportive units will be available to residents with severe mental illness or substance use disorders through the NYC 15/15 program. Services will focus on maintaining housing stability, connecting tenants with healthcare providers, and supporting education and skill development. Additional programming will include cooking classes, healthy living guidance, free fresh food distribution, art classes, gardening, exercise programs, and trips to sporting and cultural events. Home / Multifamily TIMBALE TERRACE ARCHITECT . Urban Architecture Initiatives PROJECT SIZE . 318,000 GSF, 19 stories, 340 units PROJECT COST . $150 million SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. The building is being designed to meet Passive House performance standards, featuring a highly efficient building envelope and low energy heating and cooling systems. Altera presented several options for heating, cooling, and domestic hot water generation. After careful consideration, the owners elected to use a variable refrigerant volume (VRV) system for the building's heating and cooling needs. However, Altera engineers faced challenges due to the mandated phase out of R410A refrigerant, which introduced regulatory uncertainty surrounding the use of VRV systems. The newer generations of VRF refrigerants, classified as A2L, are more flammable, and their use has not yet been fully codified in local building regulations. To address this challenge, the team referenced the International Building Code and leveraged the European experience with A2L refrigerants, incorporating design provisions that allow for future adaptation of these refrigerants in New York City. The resulting design incorporates a 3 pipe heat recovery variable refrigerant volume system distributed up and down the building via rated and vented shafts. For the domestic water heating, a CO2 driven heat pump system was selected. To overcome the low rate of heat recovery of the CO2 heat pump system, 7,000 gallons of hot water storage were provided. Go Go Timbale Terrace is located on the parking lot of the NYPD 25th precinct and within the confines of the Special East Harlem Corridors District, which was designated for rezoning in the 2017 East Harlem Rezoning plan to bring 4000 affordable homes to the 96 block area, roughly bounded by East 104th Street to East 132nd Street, between Fifth Avenue and the East River Timbale Terrace will be a 19 story residential building featuring 340 affordable units, including 99 supportive housing units. The development will be constructed on a lot currently used for parking by the 25th Precinct. The building's affordable units will serve households earning between 30% and 80% of the area median income (AMI), while the supportive housing units will be designated for formerly homeless individuals and families. Lantern will provide on site supportive services. Residents will have access to a range of amenities, including rooftop terraces, a fitness and cycling room, community spaces, meeting rooms, and a community pantry. The ground floor will house the Afro Jazz Alliance Music and Arts Center, which will serve as the venue for all of the Alliance’s performances. Supportive housing at Timbale Terrace provides permanent, affordable housing with onsite services for individuals and families who have experienced homelessness and meet specific eligibility criteria. The development is receiving funding through the NYC 15/15 and Extremely Low & Low Income Affordability (ELLA) programs. Supportive units will be available to residents with severe mental illness or substance use disorders through the NYC 15/15 program. Services will focus on maintaining housing stability, connecting tenants with healthcare providers, and supporting education and skill development. Additional programming will include cooking classes, healthy living guidance, free fresh food distribution, art classes, gardening, exercise programs, and trips to sporting and cultural events.

Location: 542 Dean Street, Brooklyn, NY 11217 (between 6th Avenue and Carlton Avenue). Neighborhood: Prospect Heights, under Brooklyn Community Board 8. Park Edge is a proposed affordable housing development in the Prospect Heights neighborhood of Brooklyn, New York City. It is designed as supportive housing specifically for low-income and formerly homeless seniors (older adults). The project aims to convert an underutilized city-owned parking lot into a multi-story residential building, emphasizing 100% affordable units and community integration. The name "Park Edge" reflects its location adjacent to the Dean Playground, highlighting its proximity to recreational amenities. Housing Focus: 100% affordable units targeted at low-income seniors, including those experiencing homelessness. It is part of a broader initiative to address housing needs in an area facing rapid redevelopment and population growth (over 13,000 new residents expected nearby from projects like Pacific Park). Unit Count: 80–100 units (combined estimate with a sister site at 516 Bergen Street; exact breakdown for 542 Dean Street not specified, but prioritized for senior housing). Features include a new entrance to Dean Playground, enhanced public open space, and integration with neighborhood green areas. Emphasis on supportive services to promote long-term vitality for residents. Affordability: Deeply affordable units, aligned with NYC's Housing New York plan and community priorities for public sites. Public Realm Improvements: The development is tied to the Atlantic Avenue Mixed-Use Plan (AAMUP), which prioritizes affordable housing, open space, and community input. It emerged from a 2021 RFP process following community visioning sessions in Crown Heights and Bedford-Stuyvesant. Surrounding Area: Directly adjacent to Dean Playground (a NYC Parks-managed green space with basketball courts, ball fields, and playgrounds), where the project includes plans for a new park entrance, public seating, and greenery. Near major landmarks like Barclays Center, Atlantic Yards/Pacific Park Brooklyn, Prospect Park, and the commercial corridor on Flatbush Avenue. Well-served by transit (e.g., 2/3 trains at Bergen Street station) and amenities including Fire Engine 219 and Police Precinct 78. Map Reference: The site is in a highly walkable, amenity-rich area with easy access to parks, shopping, and public transportation. Community Input: Stemmed from AAMUP processes where residents prioritized affordable housing over other uses for the site. Local leaders, including Council Member Crystal Hudson, have praised it as essential for neighborhood wellbeing. Broader Impact: Addresses NYC's housing crisis by repurposing underused public land. It's one of two Prospect Heights sites in HPD's initiative, creating 80–100+ units total. Challenges: Part of a densely developing area (one of the most populous census tracts in the U.S.), with calls for broad rezoning reviews to mitigate impacts. Home / Multifamily PARK EDGE ARCHITECT . nARCHITECTS, PLLC PROJECT SIZE . 113,000 GSF SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go Location: 542 Dean Street, Brooklyn, NY 11217 (between 6th Avenue and Carlton Avenue). Neighborhood: Prospect Heights, under Brooklyn Community Board 8. Park Edge is a proposed affordable housing development in the Prospect Heights neighborhood of Brooklyn, New York City. It is designed as supportive housing specifically for low-income and formerly homeless seniors (older adults). The project aims to convert an underutilized city-owned parking lot into a multi-story residential building, emphasizing 100% affordable units and community integration. The name "Park Edge" reflects its location adjacent to the Dean Playground, highlighting its proximity to recreational amenities. Housing Focus: 100% affordable units targeted at low-income seniors, including those experiencing homelessness. It is part of a broader initiative to address housing needs in an area facing rapid redevelopment and population growth (over 13,000 new residents expected nearby from projects like Pacific Park). Unit Count: 80–100 units (combined estimate with a sister site at 516 Bergen Street; exact breakdown for 542 Dean Street not specified, but prioritized for senior housing). Features include a new entrance to Dean Playground, enhanced public open space, and integration with neighborhood green areas. Emphasis on supportive services to promote long-term vitality for residents. Affordability: Deeply affordable units, aligned with NYC's Housing New York plan and community priorities for public sites. Public Realm Improvements: The development is tied to the Atlantic Avenue Mixed-Use Plan (AAMUP), which prioritizes affordable housing, open space, and community input. It emerged from a 2021 RFP process following community visioning sessions in Crown Heights and Bedford-Stuyvesant. Surrounding Area: Directly adjacent to Dean Playground (a NYC Parks-managed green space with basketball courts, ball fields, and playgrounds), where the project includes plans for a new park entrance, public seating, and greenery. Near major landmarks like Barclays Center, Atlantic Yards/Pacific Park Brooklyn, Prospect Park, and the commercial corridor on Flatbush Avenue. Well-served by transit (e.g., 2/3 trains at Bergen Street station) and amenities including Fire Engine 219 and Police Precinct 78. Map Reference: The site is in a highly walkable, amenity-rich area with easy access to parks, shopping, and public transportation. Community Input: Stemmed from AAMUP processes where residents prioritized affordable housing over other uses for the site. Local leaders, including Council Member Crystal Hudson, have praised it as essential for neighborhood wellbeing. Broader Impact: Addresses NYC's housing crisis by repurposing underused public land. It's one of two Prospect Heights sites in HPD's initiative, creating 80–100+ units total. Challenges: Part of a densely developing area (one of the most populous census tracts in the U.S.), with calls for broad rezoning reviews to mitigate impacts.