Base Building
Specifications Summary

Site Transportation
Longwood Research Center is a six-story 130,000 sf purpose-built state-of-the-art research laboratory building to be built at 121 Brookline Avenue in the greater Longwood/Fenway area of Boston. The building is located approximately ½ mile to the east of Harvard Medical School campus and is a 12-minute walk from the institutions and hospitals of the Longwood Medical Area including Dana Farber Cancer Center, Children’s Hospital, and Beth Israel Deaconess Medical Center. The Longwood Research Center is located in an area rich in amenities including dining, shopping and entertainment.

Parking and Transportation
The building will include 90 parking spaces in a secure two-story underground parking garage. The site is also well served by public transportation including the Green Line T, commuter rail, several bus routes, and the MASCO shuttle route. The building will also feature a secure indoor area for storing bicycles along with showering and changing facilities to accommodate and encourage bicycle commuters.

Exterior
The Longwood Research Center was designed to reflect the state-of-the-art nature of the research being conducted inside while respecting the heritage of the adjacent buildings built in the early part of the 20th century. The exterior skin of the building is composed of precast horizontal and vertical elements framing insulated glass curtainwall systems sized to maximize the amount of natural light into the building. The building’s mechanical penthouse has been stepped back from the perimeter of the building and is topped by a screenwall to limit the exterior mechanical equipment from view.

Entry Lobby
The main entry lobby is accessed from the prominent location at the center of the building on Brookline Avenue. The entry lobby is clad in light wood tones, mirror and glass to present a light, first-class environment with informal seating areas and plantings to create a casual atmosphere.

Loading
Secure loading is provided to the building with interior loading bays located on Burlington Avenue. Loading for larger vehicles can also be accommodated at the rear of the building.

Elevator Service
The building will be served by two (2) 3,500lb, 350fpm “next generation” gearless traction elevators which will open on floors 1–6, plus one (1) 5,000lb, gearless traction service elevator convenient to the loading dock and serving floors 1–6 plus the mechanical penthouse. One (1) 3,000lb hydraulic elevator serves the garage levels to the first-floor lobby.

Structural System
The Longwood Research Center is designed to accommodate floor live loads of 100psf and a mechanical penthouse live load of 125psf. The primary structural system consists of structural steel framing with concrete floors on composite metal deck, and uses both braced frames and moment frames for lateral bracing. The building is designed in accordance with the sixth edition of the Massachusetts State Building Code for all seismic and lateral loads.

Tenant Space
The tenant space has been designed to provide flexible lab planning modules. The floor plates have been designed to accommodate lab benches on the exterior walls of both the long and short dimensions of the building. Core areas have been compressed to allow for greater clear spaces between the perimeter wall and the building’s core systems. The core contains all of the building’s interior columns leaving the tenant spaces virtually column free. Tenant spaces have been designed with 14’–8” floor-to-floor height to accommodate the mechanical needs of the space while maintaining the greatest flexibility for high ceilings, and capturing the most natural light from the perimeter windows.

HVAC System
The central HVAC system includes a boiler plant, chillers, cooling towers and air handlers. The mechanical systems have been designed with flexibility, efficiency, and redundancy in mind.

• Boilers
  The building is served by two 287bhp steam boilers which can be expanded to accommodate a third 287bhp boiler at full build-out conditions. Hot water from the steam/hot water heat exchanger is circulated throughout the building and to valved and capped risers in tenant spaces through variable frequency circulator pumps. Steam capacity is available for tenant potable and non-potable water heaters.

• Chillers
  Chilled water is provided by an 800-ton chiller plant consisting of two (2) 400-ton electric centrifugal chillers that may be expanded by an additional 400 tons for heavy lab build-out. Chilled water is circulated to the building air handlers through variable frequency chilled water pumps.

• Cooling Towers
  Condenser water is produced through a two-cell 880-ton cooling tower which can be expanded with an additional 440-ton cell. Cooling tower fans are variable frequency drives. Condenser water is circulated to the building chillers through condenser water pumps with a separate set of pumps to circulate condenser water to valved and capped risers in tenant spaces for supplemental cooling needs.

• Air Handlers
  80% outside air is supplied by two (2) 100,000 cfm custom-built air handlers capable of supplying 2.0 cfm to lab spaces and 1.25 cfm to office areas. Lab spaces are once-through air, while air from the office spaces is returned to increase building efficiency. Air handlers have variable frequency supply fans, heat recovery and cooling coils, sound attenuators and filter sections. Each air handler is equipped with an exhaust air economizer. Return air fans will also have variable frequency drives. Tenant areas are served by base building supply and return shafts stubbed into tenant spaces.

• Exhaust Ventilation
  Exhaust air is collected on each tenant floor through common vent shafts to (2) 88,000cfm rooftop exhaust air handling units. Common vent shafts are stubbed into each floor of the tenant space.

• Controls
  The base building will be equipped with DDC controls for all base building mechanical equipment including all common spaces, and floor core areas. The Automatic Temperature Control system shall be addressable to accommodate tenant systems to tie into the base building systems.

Plumbing
Domestic cold water and hot water is provided to common restrooms on each tenant floor. Domestic potable and non-potable cold water is provided to tenant floors through valved and capped vertical risers. Incoming domestic water shall be distributed to the tenant spaces. Domestic water booster pumps are provided to ensure adequate water pressure. Space for tenant acid neutralization systems is provided on the first floor of the building. Shaft space is provided to accommodate tenant risers for supply and waste piping.

Sprinkler
The Landlord shall provide fire protection service, fire pump, vertical standpipe supply with fire department valves and floor control valve assemblies in each stairwell, sprinkler loop main on each floor and sprinkler head coverage protecting the building core areas, toilet rooms, and elevator lobbies. The tenant shall be required to provide sprinkler branch distribution piping and sprinkler head layouts to suit the architectural fit-out of the tenant areas based upon NFPA-13 Ordinary Hazard Group 1 Occupancy densities (130 sq.ft. per head / .15gpm / 1500 sq.ft.).

Electrical
The building is serviced by NSTAR from a secure substation and transformer located inside the building. Primary electric service is 480/277-volt, 3,000 amperes, 3-phase, and has been designed to provide 20W/sf of lab space, and 8W/sf of office space. Bus duct risers will provide service to each tenant floor, and each tenant will be responsible for their own metering.

Generators
The building is equipped with a 750kW Diesel-fired standby life safety emergency generator. The building also includes a 650kW Diesel-fired standby generator for tenant use. This generator has been sized to provide 5W/sf of emergency standby power to tenant spaces. Additional roof space is also available for individual tenant generators as necessary.