The A to Z of flex office terms

Quotes, tours and contracts in the flex office sector come loaded with jargon. This glossary cuts through it, so you walk into every conversation knowing exactly what you are comparing.

Every term here is verified against how the market actually uses it, not a textbook definition. Use it as a quick reference before you compare providers, or bookmark it and come back when a new term shows up in a contract.

Combines Office Tier List's executive glossary with Spaces to Places sector terminology. For team use, ready to lift into the website page.

A

15-minute city

A planning concept placing homes, workspace, retail and transport within a 15-minute walk or cycle. It is pushing flex operators to open locations closer to where people live, not just central business districts.

Accelerator

A programme that helps startups grow, often bundling mentorship and funding with office space. Many flex operators partner with accelerators to bring founders into their buildings.

Activity-based working (ABW)

A workplace strategy that gives staff a mix of settings, desks, quiet zones, lounges, to match the task at hand rather than one fixed seat.

Amenities

The added services and facilities in a workspace, from fast wifi to fitness rooms. Strong amenities turn a building into a place people want to work from, not just a desk to rent.

Anchor tenant

A major, long-term tenant whose presence lifts the value and appeal of a building for everyone else in it.

B

B Corporations

Companies certified by B Lab for meeting set standards on social and environmental impact, and held accountable for it.

Bespoke

Custom-designed workspace tailored to a client's branding, layout or workflow.

Bifurcation

The market splitting into distinct tiers, best space against the rest, rather than one uniform offer. Quality, location and floorplate now separate winners from laggards.

Brandlords

Landlords who have launched their own flex brand rather than handing the building to an operator. Examples include Assemble, Storey and Myo.

BREEAM

A widely used European certification for sustainable building design and performance.

Broker

An intermediary who connects providers with occupiers, usually paid on commission. Office Tier List exists so you get the same reach without the commission attached.

Business lounge

A flexible workspace, often in airports, hotels or standalone sites, built for travelling professionals who need wifi, a desk and somewhere to take a call.

C

CapEx

Capital expenditure, the one-time investment in fixed assets such as fit-out, furniture or IT.

Cat A and Cat B office space

Cat A is the basic finished shell, walls, lighting, flooring, ready for fit-out. Cat B is the finished workplace built on top, with furniture, branding and layout in place.

Cat A+ office space

A step up from Cat A, offered by landlords wanting to attract tenants without full Cat B spend. Close to plug and play, minus the branding.

Community manager

The person who curates the day-to-day experience in a space, events, onboarding and the connections between members.

Coworking

A shared workspace model where members work alongside each other, with access to hot desks, meeting rooms and a community manager who makes the introductions. It suits freelancers, founders and small teams who want flexibility and connection above all else.

D

Daylight

Natural light entering a workspace, a proven driver of health, comfort and productivity.

Dedicated desk

A desk permanently assigned to one user, usually within an open-plan setting.

Desk sharing

A more structured version of hot desking, with set schedules for who uses a desk and when.

E

Ergonomics

The design of furniture and layouts to support human comfort, health and performance.

F

F&B

Food and beverage, the on-site cafes, snacks and catering that support hospitality.

Facility manager

Responsible for the daily physical running of a building, maintenance, cleaning and utilities.

Fit-out

Furnishing and equipping an interior, finishes, mechanical and electrical systems and furniture.

Flex native

A business that has grown up entirely within flex offices and has never signed a traditional lease.

Flex office

Office space on short-term, scalable contracts with shared infrastructure and amenities, also known as flexible workspace.

G

Grade A offices

The most sought-after space, cutting-edge facilities in prime locations, priced to match.

Grade B offices

A step down in specification and price from Grade A, often a well-maintained older Grade A building.

Grade C offices

Older, lower-specification buildings, usually outside prime areas, valued for function over prestige.

H

Hospitality

Hotel-style service in the workplace, built to make people feel welcomed and supported, not just accommodated.

Hot desk

A non-assigned desk used on a first-come, first-served basis in shared areas.

HVAC

Heating, ventilation and air conditioning, the systems regulating indoor climate and air quality.

Hybrid work

A flexible model combining remote and in-office work.

L

LEED

A globally recognised green-building certification covering energy, water and indoor quality.

LUX

A unit of illuminance. Office tasks typically need 300 to 500 lux.

M

Managed office

A private, branded floor designed and run by an operator on a client's behalf. It gives a team its own space without the capital outlay of a traditional fit-out, a natural next step once a business has outgrown coworking.

Management agreement

An arrangement where an operator runs a building's flex offer on behalf of the landlord, who keeps ownership and takes a share of the income.

Meeting rooms

Dedicated spaces for meetings and presentations, usually booked as needed, with AV and catering on tap.

Membership model

How users access a space, open membership, a monthly contract or invite-only.

N

No CapEx

Space that needs no upfront tenant investment, the operator provides the infrastructure and furnishing.

O

Opco/Propco

A structure separating a company's operating business (Opco) from its real estate assets (Propco), used to manage flex operations and property ownership independently.

OpEx

Operational expenditure, the recurring running costs such as utilities, cleaning and staffing.

Operator

The company that runs a flex building day to day, from maintenance to member services, whether it owns the building or leases it.

P

Plug and play

A turnkey office ready for immediate use with no configuration required.

Private office

An enclosed, lockable office for a team within a flexible workspace.

R

Reinstatement

Restoring a leased space to its original condition at the end of a traditional lease.

S

Scaling up and down

The ability to add or remove space as headcount changes, one of flex's core advantages over a fixed lease.

Service agreement

Access to workspace and services without a property lease, flexible and easy to exit.

Serviced office

A private, fully equipped office with cleaning, reception and internet bundled in by the operator. It suits businesses that want to move in fast, on a shorter commitment than a managed office, with a predictable monthly cost.

Shell and core office space

The building before any fit-out, structural frame and weatherproofing only, with no services installed.

Sublease

A legal lease of physical space from an operator, more rigid, with stronger occupancy rights than a service agreement.

T

TCO

Total cost of occupancy, the full cost of an office over its term, beyond the headline rent.

Third space

Somewhere between home and work, coffee shops, business lounges, informal coworking, valued for a relaxed, social environment.

Turnkey office

A fully finished, furnished space needing no further setup, similar to plug and play.

U

Utilisation rate

The percentage of time a desk or room is actively used.

V

Value per person

The experience and output a space creates per employee, the modern alternative to cost per square metre.

Virtual offices

A business address and phone number without a physical space, often bundled with mail and call handling.

W

WELL Building Standard

A certification focused on occupant health, air, light, fitness and nutrition.

White-label coworking

A branded, operator-run environment that looks and feels owned by the occupier.

Workstation (WS)

A unit of space for one employee, desk, chair and sometimes storage.

Z

Zoning

Local regulations determining the permitted uses of a plot, office, residential or mixed-use.