Why Lab Tenants Face a Different Verification Challenge
Life science and laboratory tenants operate under a different set of physical demands than any other commercial occupier category. A corporate office can tolerate a building that lacks redundant power or has modest floor loading; a lab cannot. The lease negotiation process for wet lab, dry lab, vivarium, or advanced manufacturing space requires a disciplined, feature-by-feature review of the building's infrastructure before any letter of intent is signed.
The list of items that can quietly derail a lab tenancy is long, and many of them are buried in mechanical drawings, engineering reports, or lease exhibits that most tenant advisers never pull until it is too late. Working through the full checklist — the 9 Building Features Lab Tenants Should Verify Before Signing — before the LOI stage protects the tenant's capital, timeline, and operating continuity.
1. Electrical Service Capacity and Redundancy
Laboratory operations consume substantially more power per square foot than typical office tenants, and the gap widens with high-performance computing, cold storage, and research-grade equipment. Before signing, tenants should request the building's electrical single-line diagram and confirm the available amperage at the floor or suite level, not just the building-wide service rating.
Transformer capacity, panel availability, and the distance from the utility point of entry to the demised premises all affect the cost of tenant improvement work. A building with a 2,000-amp service might still require a six-figure subpanel upgrade if the available capacity at the floor is already committed to other tenants.
Redundancy deserves equal scrutiny. Mission-critical labs running continuous experiments need uninterruptible power supply coverage and, in many cases, generator-backed circuits. The lease should specify which circuits carry standby power, the runtime of any generator under full load, and who bears the cost of generator fuel and maintenance during the tenancy.
Tenants should also confirm whether the building's switchgear is metered separately for each suite. Shared electrical infrastructure can complicate future capacity expansions and create disputes about consumption allocation that persist for the life of the lease.
2. HVAC and Ventilation Specifications
Standard commercial HVAC systems are designed around human comfort, not laboratory air quality or pressure relationships. Lab tenants must verify the system's supply and exhaust capacity, the number of air changes per hour the system can deliver to the proposed suite, and whether the building has provisions for 100-percent outside-air supply where chemical fumes or biological agents are involved.
Positive-to-negative pressure relationships between spaces matter enormously in biosafety, pharmaceutical, and vivarium contexts. The building's mechanical engineer of record should provide documentation confirming that the HVAC architecture can achieve and maintain the pressure differentials required by the tenant's program, not just a general statement that the system is "lab-ready."
Exhaust shaft capacity is a related constraint that gets underestimated. Fume hoods, biological safety cabinets, and vivarium cage-wash stations all require dedicated exhaust pathways. If the building's exhaust risers are already allocated to other tenants, the incoming lab occupier may face significant ductwork costs and landlord approval delays before a single piece of equipment can be commissioned.
Temperature and humidity control tolerances also deserve a written specification. Some analytical instruments require room temperature stability within plus-or-minus one degree Celsius, and standard building systems rarely achieve that without supplemental precision cooling. The lease exhibit for HVAC performance should capture these tolerances in measurable terms so that deficiency disputes do not arise mid-tenancy.
3. Floor Load Capacity
Laboratory equipment — autoclaves, centrifuges, mass spectrometers, liquid nitrogen tanks, server racks supporting genomic sequencing — often imposes point loads and distributed loads that exceed the design assumptions of a standard commercial office floor. Tenants must obtain the structural engineer's report for the floor in question, not a marketing brochure that describes the building as "life science ready."
The key figure is the live load rating expressed in pounds per square foot, but equally important is the floor's ability to handle concentrated point loads. A floor rated at 100 pounds per square foot may still be unable to support a 2,000-pound centrifuge on a small footprint without supplemental structural reinforcement. That reinforcement costs money and time, and understanding it upfront determines whether the building is genuinely competitive.
Vibration transmission is a related concern, particularly for tenants running electron microscopy, atomic force microscopy, or any instrument with tight vibration thresholds. Floors above parking structures or near loading docks can transmit mechanical vibration that invalidates experimental results, and that issue cannot be corrected by tenant improvement work alone.
Tenants should also think about future equipment upgrades. Signing a lease based on current equipment loads without considering the trajectory of the research program creates a constraint that may force relocation long before the natural lease expiration.
4. Water Supply, Drainage, and Process Plumbing
Laboratory operations depend on water in ways that office tenants never encounter: ultrapure water systems for analytical chemistry, floor drains sized for equipment washdown, sanitary waste lines capable of handling autoclaved effluent, and in some cases, chilled water loops serving process cooling. The base building's domestic water pressure and volume must be confirmed against the tenant's peak demand, not average demand.
Floor drain availability — and the routing of drain lines to the building's collection system — is a point of frequent negotiation failure. Many commercial buildings have minimal drainage infrastructure on upper floors, requiring expensive core drilling and drain-line installation that can add months to a construction timeline. If the building was not originally designed with laboratory drainage in mind, the tenant's improvement budget should include a realistic plumbing allowance.
Landlord consent requirements for modifications to the sanitary system also deserve attention. Some landlords restrict modifications to the building's plumbing chase, require their own contractors, and impose a lengthy approval cycle that can delay occupancy. These requirements should be identified and negotiated before the lease is signed, not discovered during construction.
For tenants generating regulated waste streams, the connection between internal plumbing and the municipal sewer system requires environmental compliance review. The lease should address which party is responsible for any required pretreatment systems and what happens if municipal discharge limits change during the lease term.
5. Chemical Storage and Hazardous Materials Infrastructure
Laboratories that handle flammable solvents, corrosives, compressed gases, or controlled substances require building infrastructure that most commercial landlords have never needed to think about. Before signing, the tenant's environmental health and safety team should review the building's hazardous materials management plan, the location of flammable storage rooms or cabinets, and the fire suppression system's compatibility with the anticipated chemical inventory.
Building codes — specifically NFPA standards and local fire authority requirements — set maximum quantities of hazardous materials by occupancy classification and control area. A building classified as a Business occupancy may have a lower threshold for flammable liquids than a building classified as a High-Hazard occupancy, and upgrading the classification requires structural fire protection improvements that can be both expensive and slow.
The lease should identify the maximum aggregate quantity of each hazardous material category the tenant is permitted to store on the premises, stated by reference to the applicable NFPA or IFC control area limits for the building's occupancy classification. Ambiguity in this provision creates risk for both parties: the tenant may inadvertently exceed a threshold and trigger a code violation, while the landlord faces liability for a building condition it did not anticipate.
Compressed gas storage and manifold rooms require dedicated, ventilated enclosures with seismic restraint in applicable geographies. If the building does not have an existing gas manifold room, the cost and feasibility of adding one — including roof penetrations for exhaust and landlord approval rights — must be scoped before the lease is executed.
6. Loading Dock Access and Freight Elevator Specifications
Equipment delivery is not a one-time event in a laboratory tenancy; it is a recurring operational requirement. Centrifuges, biosafety cabinets, MRI-compatible workstations, and liquid nitrogen dewars arrive on pallets, require liftgates or dock levelers, and must be transported through the building's freight path to the suite. Tenants should walk that freight path with their largest anticipated delivery configuration in mind before the lease is signed, confirming that corridor widths, turning radii, and door clearances are physically adequate.
The freight elevator dimensions — car depth, width, and height; door opening width; and weight capacity — determine whether equipment can be delivered at all, or whether it must be rigged through a window or exterior opening at considerable cost. These are specifications that can be confirmed from the building's elevator certificate, and they should be attached as a lease exhibit if equipment delivery is a material operational concern.
Loading dock hours, exclusivity, and scheduling systems also affect operational planning. A building that restricts dock access to business hours creates a constraint for tenants who need to receive cold shipments, biological specimens, or controlled substances outside of that window. The lease should specify what after-hours dock access rights, if any, are granted and whether the building's security protocol supports supervised delivery during those periods.
Corridor widths and turning radii on the route from the freight elevator to the suite entrance matter more than most tenants realize. A 36-inch corridor that meets standard accessibility codes can still prevent delivery of a biosafety cabinet with a 42-inch depth. Measuring the full freight path before signing eliminates a constraint that is expensive and sometimes impossible to remedy once a lease is executed.
7. Telecommunications and Network Infrastructure
Research-grade computing, genomic sequencing, remote imaging, and cloud-based data pipelines require telecommunications infrastructure that can support both high bandwidth and low latency. Tenants should confirm which carriers serve the building, whether the building has fiber entry points that can accommodate multiple diverse paths, and whether the building has a meet-me room or telecommunications room on each floor.
Shared telecommunications infrastructure in multi-tenant buildings can create bottlenecks that no individual tenant can resolve. If the building's main telecommunications riser is at capacity, adding fiber capacity may require coordination with the landlord, the carrier, and other tenants — a process that can take months and is rarely addressed in a standard lease negotiation.
For tenants handling protected health information, genomic data, or government-funded research, the lease should address the physical security of the telecommunications room, including who has access and whether the tenant can install a dedicated cabinet with its own lock. These requirements flow from HIPAA, federal research grant conditions, and institutional biosafety protocols that do not disappear because the lease is silent about them.
Backup connectivity also deserves a conversation. A single fiber carrier serving a building creates a single point of failure. Tenants running continuous experiments or clinical operations should negotiate the right to install a secondary carrier connection, confirming that the building's physical infrastructure supports it.
8. Life Safety Systems and Emergency Egress
Laboratory environments create fire and chemical hazard scenarios that standard building life safety systems were not designed to address. Before signing, the tenant should review the building's fire suppression system type — wet pipe sprinkler, pre-action, or clean agent — and confirm its compatibility with the chemicals and equipment that will be present in the space. A wet pipe sprinkler system in a room containing sensitive analytical instruments or large quantities of water-reactive chemicals is a liability that the tenant's EHS team must evaluate.
Emergency eyewash and safety shower coverage is required by OSHA regulations for spaces where corrosive or hazardous chemicals are used or stored. The building's plumbing infrastructure must be able to deliver the required flow rate — typically fifteen gallons per minute for a combination unit — to every required location within the ten-second travel distance specified by regulation. This is a physical infrastructure constraint, not a tenant improvement preference.
Emergency egress from laboratory floors carries additional complexity when chemical storage, locked vivarium access, or controlled-substance rooms are involved. The fire authority having jurisdiction may require specific egress widths, travel distances, or exit discharge configurations that differ from standard commercial occupancy requirements. Engaging the local fire authority early in the diligence process — before the lease is executed — surfaces requirements that might otherwise arrive as construction surprises after a permit application is submitted.
Alarm notification and chemical monitoring systems — fixed gas detectors, oxygen deficiency monitors, and exhaust flow sensors — require interfaces with the building's base building automation system in many jurisdictions. Confirming that the building's BAS can accommodate these interfaces, and that the landlord will permit the required connections, avoids a construction conflict that can delay a certificate of occupancy.
9. Lease Flexibility, Expansion Rights, and Infrastructure Ownership
The final verification is not a physical building feature but a contractual one that is inseparable from the infrastructure conversation. Lab tenants routinely outgrow their initial footprint faster than general commercial tenants, and they invest heavily in tenant improvements — fume hood installations, floor drains, electrical subpanels, gas manifold rooms — that have little value if they cannot be recovered or carried forward.
Expansion rights, rights of first offer, and rights of first refusal on adjacent or contiguous space should be negotiated before the LOI is signed, not treated as a future discussion. The proximity of potential expansion space to the building's existing infrastructure — the same exhaust shaft, the same electrical service, the same loading dock path — determines whether expansion is operationally feasible, not merely contractually available. A right to expand into a space on a different floor with a different infrastructure profile is worth considerably less than a right to expand into a contiguous suite.
Ownership of tenant improvements at lease expiration is a point of genuine economic significance for lab tenants. Specialized infrastructure — a floor drain system, a gas manifold room, a subpanel — may have no removal value and significant removal cost. The lease should address which improvements the landlord will incorporate into the base building at lease expiration and which the tenant must remove, with restoration obligations and costs clearly stated in the lease exhibits so that neither party faces an end-of-term dispute over scope.
How a landlord responds to detailed infrastructure questions during the diligence process is itself a signal about how that relationship will function during the tenancy. A landlord who provides thorough, timely documentation — electrical drawings, structural reports, mechanical specifications — signals an operational partnership that benefits the tenant throughout the lease term. The diligence process, in that sense, reveals the landlord relationship before the lease commits either party to it.
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A building that requires a subpanel upgrade, additional drainage cores, and a new gas manifold room before it is occupiable has an effective occupancy cost that is materially higher than its asking rent implies.
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