79 WALKER STREET SCOPE . HVAC, sprinkler, plumbing and electrical power, fire alarm design and construction administration PROJECT COST . Home / Commercial 79 WALKER STREET ARCHITECT . Stephen B Jacobs Group PROJECT SIZE . 21,500 GSF PROJECT COST . SCOPE . HVAC, sprinkler, plumbing and electrical power, fire alarm design and construction administration Go Go 79 Walker Street is a 6-story store and loft building constructed in 1869 for the rapidly expanding of the neighborhood’s textile trade. When completed, the building was occupied by manufacturing lofts, followed by a pocketbook manufacturer in the early 1900’s, hardware manufacturing and- most recently- an art gallery. The developers retained Altera Engineering to support their ambitious conversion to a modern office catering to New York city’s tech and startup firms. Altera Engineering provided MEP engineering design and approval services, working closely with architects and owners to upgrade building’s infrastructure and integrate state-of-the-art mechanical systems into the existing historic shell.

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.

Home / Hospitality DELAMAR MYSTIC ARCHITECT . PROJECT SIZE . PROJECT COST . SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go Overview: Delamar Mystic is a waterfront hotel blending maritime history with modern elegance, offering views of the Mystic River and proximity to Mystic Seaport. It’s part of the Delamar Hotels brand, known for coastal New England properties. Structure and Features: Rooms: 31 rooms and suites with floor-to-ceiling windows for river views. Event Space: A 2,600-square-foot ballroom and a waterfront event lawn for weddings, corporate events, and private parties. Dining: La Plage Restaurant, an oyster bar and coastal cuisine spot seating up to 90 indoors, focusing on local seafood, produce, and sustainable meats. Amenities: Guest-only swimming pool, free Wi-Fi, and parking. The design incorporates nautical elements like vintage maps and artisanal furnishings. Size: Specific building dimensions are not listed, but it’s a multi-story structure tailored for boutique hospitality. Location: Situated in Mystic’s historic district, near Interstate 95, Mystic Seaport Museum (75 Greenmanville Ave), and downtown Mystic. It’s a short walk to attractions like Mystic Aquarium and Olde Mistick Village, making it a hub for tourists. History: The site was previously home to Latitude 41 Restaurant, which closed in July 2022, with plans reported for its demolition to make way for this hotel development. Delamar Mystic was announced as a new addition by Delamar Hotels, with construction and opening details finalized post-2022. Exact completion dates are not specified, but it’s operational as of 2025.

Home / Healthcare ST JOHN'S EPISCOPAL HOSPITAL (SJEH) ARCHITECT . SBLM PROJECT SIZE . 38,000 SF PROJECT COST . SCOPE . Design review, HVAC, sprinkler, plumbing and electrical power design and construction administration Teaching Center at St John's Episcopal Hospital Altera Engineering has been retained to take over design and construction administration of a 4-storey 38,000 SF teaching center on the campus of St. John's Episcopalian Hospital in Far Rockaway, Queens. St. John’s Episcopal Hospital is the only hospital providing emergency and ambulatory care to the densely populated, culturally and economically diverse, and medically underserved populations of the Rockaways and Five Towns in southern Queens County and southwestern Nassau County, New York. The 257-bed facility provides people of all faiths with comprehensive preventive, diagnostic, treatment and rehabilitative services, regardless of ability to pay. The new teaching center was conceived as an expansion facility to relieve congestion and provide new state-of-the-art training and teaching areas to support residency programs. The center comprises of exam rooms, lecture halls, simulation rooms, offices and classrooms. Two floors are designed to be fully compliant with New York State Health Law Article 28. The basement floor will be a new home to the hospital's IT department including its data center. In addition, the new facility is conceived to serve an emergency community shelter. Altera Engineering team began the process with a comprehensive design review of all building systems designed by legacy engineer. In the course of the design review our team has found numerous opportunities for optimization of incoming services, sprinkler, mechanical and electrical systems, resulting in estimated $250,000 in construction cost savings to the project as well as savings in operating expenses.

31 Lispenard Street is a modern condominium development in Tribeca, a trendy and historic area of Lower Manhattan known for its cast-iron buildings and upscale vibe. Development Overview: This is a new condo project by Urban Standard Development, a company specializing in ground-up construction and renovations. The building replaces an older one-story mixed-use structure from 1947 that had five units, two of which were residential. Building Specifications: Height and Units: A seven-story building standing 89 feet tall, with 5 residential units. Size: Total area of 12,603 square feet, including 10,362 square feet of residential space and 1,031 square feet of ground-floor retail. Design: Features a sleek, contemporary look with a conventional storefront and arched windows on the residential floors, blending modern gloss with Tribeca’s brick aesthetic. The architect is GF55 Partners, known for similar urban projects. Status: Full demolition permits were filed by 2018 for the prior structure, and by 2019, plans were presented to the NYC Landmarks Preservation Commission (LPC) for approval, given Tribeca’s historic district status. Renderings of both interior and exterior were unveiled around then. As of March 2025, it’s likely completed or nearing completion, though I don’t have real-time confirmation. No offering plan was filed by 2019, but Tribeca’s median condo price ($4.5 million) suggests these units would be high-end. Location Details: Address: Corner of Lispenard Street and Church Street, in the heart of Tribeca. Neighborhood: Tribeca (Triangle Below Canal Street) is famous for its loft-style homes, cobblestone streets, and proximity to SoHo. It’s a hub for art, dining, and luxury living. Nearby: Steps from Canal Street, the Canal Street Market, and transit options like the Canal Street subway station (A, C, E, 1 trains). Cultural spots like the Tribeca Film Institute are also close. Historical Note: Lispenard Street is named after Anthony Lispenard, who owned the land in the 18th century. The area evolved from meadows to a 19th-century trade hub, and now a chic residential zone. Additional Context The original building at this address was a modest 17-foot-tall structure owned by Peter Matera of Urban Standard Capital before its demolition. The new development reflects Tribeca’s ongoing transformation, balancing preservation (via LPC oversight) with modern luxury. Home / Multifamily 31 LISPENARD ARCHITECT . PROJECT SIZE . PROJECT COST . SCOPE . Design, approvals and construction administration of mechanical, plumbing, sprinkler, electrical and fire alarm systems. Go Go 31 Lispenard Street is a modern condominium development in Tribeca, a trendy and historic area of Lower Manhattan known for its cast-iron buildings and upscale vibe. Development Overview: This is a new condo project by Urban Standard Development, a company specializing in ground-up construction and renovations. The building replaces an older one-story mixed-use structure from 1947 that had five units, two of which were residential. Building Specifications: Height and Units: A seven-story building standing 89 feet tall, with 5 residential units. Size: Total area of 12,603 square feet, including 10,362 square feet of residential space and 1,031 square feet of ground-floor retail. Design: Features a sleek, contemporary look with a conventional storefront and arched windows on the residential floors, blending modern gloss with Tribeca’s brick aesthetic. The architect is GF55 Partners, known for similar urban projects. Status: Full demolition permits were filed by 2018 for the prior structure, and by 2019, plans were presented to the NYC Landmarks Preservation Commission (LPC) for approval, given Tribeca’s historic district status. Renderings of both interior and exterior were unveiled around then. As of March 2025, it’s likely completed or nearing completion, though I don’t have real-time confirmation. No offering plan was filed by 2019, but Tribeca’s median condo price ($4.5 million) suggests these units would be high-end. Location Details: Address: Corner of Lispenard Street and Church Street, in the heart of Tribeca. Neighborhood: Tribeca (Triangle Below Canal Street) is famous for its loft-style homes, cobblestone streets, and proximity to SoHo. It’s a hub for art, dining, and luxury living. Nearby: Steps from Canal Street, the Canal Street Market, and transit options like the Canal Street subway station (A, C, E, 1 trains). Cultural spots like the Tribeca Film Institute are also close. Historical Note: Lispenard Street is named after Anthony Lispenard, who owned the land in the 18th century. The area evolved from meadows to a 19th-century trade hub, and now a chic residential zone. Additional Context The original building at this address was a modest 17-foot-tall structure owned by Peter Matera of Urban Standard Capital before its demolition. The new development reflects Tribeca’s ongoing transformation, balancing preservation (via LPC oversight) with modern luxury.

Home / Landmarks 428 GREENWICH STREET, MANHATTAN ARCHITECT . PROJECT SIZE . About 5,500 SF PROJECT COST . $2.5 million SCOPE . Full MEP/FP design Go Go 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 / Landmarks 325 WEST 93RD STREET ARCHITECT . Union Street Studio PROJECT SIZE . PROJECT COST . SCOPE . engineering design and approval services for all mechanical, plumbing and electrical systems Go Go Designed by the prolific Upper West Side architect George F. Pelham for the developer Joseph H. Davis, this building was constructed in 1906 as a small multiple dwelling (flats) and once known as the Albea. Located on the north side of West 93rd Street ninety-eight feet east of Riverside Drive, this six-story building faced in red brick with ironspot headers and stone trim is seventy-five feet wide and dumbbell-shaped in plan. The facade is capped by a modillioned metal cornice. An original wrought-iron fire escape is located at the center of the facade. The owners retained Altera Engineering in their bid to renovate and reposition the building as an upmarket rental property steps away from the Riverside park. Altera Engineering's scope included gut renovation of all vacant apartment units and building systems upgrade. A new high efficiency condensing boiler plant was designed to replace an outdated (once coal-fired) steam system. To fully take advantage of the condensing boiler efficiencies, all new hydronic radiators were selected around low water temperatures. Variable speed pumps were selected for low flow, wide delta-t of the water to minimize motor horse power. Domestic water was upgraded with indirect water storage tanks fed by boilers via plate and frame heat exchangers. Altera Engineering team had to work around existing occupied apartments to minimize disruption to tenants. Altera Engineering provided MEP engineering design and approval services for all mechanical, plumbing and electrical systems.

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. In 1928 the Y has moved to its current building at 30 Third Avenue. The 11-story building was designed by Frederick Lee Ackerman and Alexander B. Trowbridge. The building has always served as a multi-use facility, including 214 units of supportive, low-income housing for women, a theater, a pool, health and community services, etc. This was the first YWCA to integrate its residences and programs racially. Altera Engineering were tasked with minor HVAC upgrades as well as a feasibility analysis for a co-generation module. Home / Cultural 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. In 1928 the Y has moved to its current building at 30 Third Avenue. The 11-story building was designed by Frederick Lee Ackerman and Alexander B. Trowbridge. The building has always served as a multi-use facility, including 214 units of supportive, low-income housing for women, a theater, a pool, health and community services, etc. This was the first YWCA to integrate its residences and programs racially. Altera Engineering were tasked with minor HVAC upgrades as well as a feasibility analysis for a co-generation module.

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.

The Altera team assists architects and designers with HVAC, Electrical, Fire Protection, Plumbing and Sanitary Engineering, Special and Progress Inspections ENGINEERING DESIGN AND CONSTRUCTION SERVICES We provide quality, responsive and practical engineering design solutions that meet our client’s needs. Our designs are greener, leaner and cost-effective. HVAC Engineering • Complete Heating, Ventilation and Air Conditioning System Design • High-end, Custom Design for Residential, Commercial, Multifamily, Educational and Institutional Spaces • Variable refrigeration volume systems design and optimization • Heat recovery and renewable energy sources • Geothermal unitary systems • Central Chilled Water, Condenser Water, Hot Water, Geothermal and Steam Plants • Thermal Storage and Buffer Systems • Fuel conversions Electrical Engineering • Complete Building Power Distribution • MV and HV Building Service Design • Emergency Power and Stand-by Power • Electrical service upgrades Fire Protection Engineering • Sprinkler and standpipe systems design Plumbing and Sanitary Engineering • Domestic water distributions for lowrise and highrise buildings • Sanitary and storm drainage systems • Storm water collections • Cross connection applications for water and sewer services Special and Progress Inspections • Mechanical Systems • Sprinkler Systems • Heating Systems • Chimneys • Firestop, Draftstop, and Fireblocking Systems • Energy Code Progress TR8 Inspections Resiliency Resilience is the new sustainability. To us, resiliency means an ability to quickly adapt to changes. The most obvious challenges are due to the changing climate with higher temperatures, sea level rise, flooding, drought, and wildfires. Risk and challenges from non-climate-related natural disasters, such as earthquakes and solar flares, and anthropogenic actions like terrorism and cyberterrorism, also call for resilient design. Resilience for businesses and organizations means maintaining continuity of operations in the face of stress and disturbance. Resilience for buildings it means an ability to respond to natural and manmade disasters by providing potable water, sanitation, livable conditions, energy, lighting, safe air, and occupant health. We help our clients assess and quantify risks to their build assets, and implement measures to mitigate them. We provide technical and strategic recommendations for facility design, system specifications, methodologies and processes, and business continuity. Our services include: Advice on design of buildings and building systems capable of handling severe storms, flooding, wildfire, and other impacts that are expected to result from a warming climate Design passive heating and cooling strategies for loss of power or heating fuel Provide risk assessment based on future climatic conditions Advice on site selection Advice architects or owners on material and component selections Design of redundant water supply and sewage systems Design redundant power systems and on-site generation Local Law 87 New York City’s Greener, Greater Buildings Plan Legislation (GGBP) requires all buildings over 50,000 square feet to take specific actions aimed at increasing energy efficiency. These actions include: Measuring and reporting energy use Identifying inefficient systems Optimizing existing systems Our team of energy experts can provide you the support you need to navigate GGBP compliance and access funding available to help pay for required work. We provide comprehensive energy efficiency and compliance services. Our offerings include: ASHRAE Level I, II and III energy audits Commissioning and retro-commissioning Feasibility Studies Benchmarking Energy Audit Energy Master Planning Demand Response Assessments Industrial Process Energy Efficiency Renewable Energy Systems Metering, Verification, and Continuous Monitoring Combined Heat and Power (CHP) & Distributed Generation (DG) Green Building Assessment/Sustainable Design Local Law 97 We can make Local Law compliance work for you! REQUEST HELP High Performance Buildings A high-performance building integrates and optimizes all major high-performance building attributes including energy efficiency, durability, life-cycle performance, and occupant productivity. We offer advisory and engineering design services that enable our clients to successfully address the challenges of designing, implementing and operating a high-performance building or space. Our services include: • Engineering design and implementation of various heating, cooling, ventilation, resource conservation, adaptability, resiliency, and other technologies • Complete sustainability and energy efficiency consulting • Energy Modeling • Intelligent reuse of buildings • Greenhouse gas emissions reductions • Lifecycle assessment • Feasibility studies • NYSERDA rebates and incentives • Optimization of building mechanical systems • Façade/envelope optimization • Advice on wellness and healthy spaces • Assessment of risk in vulnerability to power grid failures, fuel shortages, exposure to legislative changes requiring buildings decrease consumption of resources and emission of greenhouse gas Backflow Prevention DESIGN AND APPROVAL WITHIN 3 WEEKS Call (212) 330-7634 or get started right now by filling in our form below. Our engineering team will be with you in 48 hours. Free phone consultation Competitive fees Fast approvals. Based on typical approval times, most projects are approved within 3 weeks. Individual results may vary subject to specific project conditions. Our team of licensed engineers have experience meeting all NYC code requirements. We offer engineering design and approvals for cross connection applications, for commercial, residential, multifamily and industrial properties including new construction and existing buildings.

Altera Engineers assist architects and designers with HVAC, Electrical, Fire Protection, Plumbing and Sanitary Engineering, Special and Progress Inspections MEET OUR TEAM Dmitriy Morozov is the co-founder of the firm and is responsible for firm’s strategy and business development. Mr. Morozov’s expertise includes design of heating, cooling, ventilation and central plant systems for commercial, residential and institutional projects as well as energy conservation in new and existing buildings. Mr. Morozov enjoys working closely with designers and building end-users in finding innovative and energy conscious solutions that support designers' vision and end-users' needs. Mr.Morozov has over 20 years of experience in design and construction of building mechanical systems. Mr. Morozov has completed projects totaling over $3 billion in construction costs with over 6 million square feet of space. Alex Kheyfets is a co-founder and principal of the firm’s plumbing division. Mr. Kheyfets is responsible for plumbing and fire protection design and construction services, as well as firm’s technical standards and building codes compliance. His expertise includes design of Plumbing and Fire Protection systems for commercial, residential and institutional projects. Mr.Kheyfets has over 20 years of experience in design and construction of building plumbing and fire protection systems, and has completed projects totaling over $2 billion in construction costs.

The Altera team assists architects and designers with MEP, HVAC, Electrical, Fire Protection, Plumbing and Sanitary Engineering, Special and Progress Inspections Build With Us Go We are passionate about buildings and the transformative impact they have on people and communities. Our mission is to collaborate closely with designers, architects, and owners from the earliest stages of every project, integrating innovative and energy-efficient systems that enhance, rather than distract from, the architectural vision. At Altera Engineering, we pride ourselves on innovation, precision, and a commitment to sustainability. We push the boundaries of engineering technology, exploring new materials, energy-saving strategies, and smart building systems that reduce environmental impact and enhance long-term operational efficiency. Every project we undertake reflects our dedication to engineering excellence, attention to detail, and delivering results that inspire pride in both our clients and ourselves. We believe that thoughtful engineering is about more than meeting technical requirements—it’s about crafting solutions that blend form, function, and sustainability. Our approach prioritizes seamless coordination between mechanical, electrical, and plumbing systems to ensure they work in harmony with the design intent, creating spaces that are not only beautiful but also highly functional, comfortable, and efficient. Our passion is building better, smarter, and more beautiful environments. Together with our partners, we strive to create spaces that elevate the human experience, enhance the built world, and set new standards for design-driven engineering. Build with us! Go Featured Projects With decades of experience in engineering complex and inspiring projects, Altera Engineering understands that every building presents unique challenges and opportunities. By engaging early in the design process, we can anticipate potential obstacles, offer practical, cost-effective solutions, and optimize system performance while maximizing usable space. We prioritize clear communication, transparency about design trade-offs, and delivering on time all essential factors in driving project success.