Best Office Buildings in Union Square for Small and Mid-Size Teams
Why Union Square works for small and mid-size teams
If you are searching for the best office buildings in Union Square, you are usually balancing four things at once. You want a sharp address. You need an easy commute. Your team also needs the right floor plate. Budget still matters.
We represent tenants, not landlords. We shortlist the right buildings by headcount, image, commute, and negotiating leverage. Then we compare direct leases, subleases, and flexible suites to protect your terms.
Union Square keeps winning because it solves the daily office problem better than most Midtown South pockets. Teams can reach the area through the 4, 5, 6, L, N, Q, R, and W lines. The 14 St–Union Sq complex logged 22,811,597 riders in 2024, which kept it among the system’s busiest stations. That access matters when you hire across Manhattan, Brooklyn, Queens, and New Jersey commuters who transfer through Lower Manhattan or Midtown.
The neighborhood also gives smaller companies something bigger districts often miss. It offers real identity without forcing every team into tower economics. Midtown South’s average asking rent reached $84.37 per square foot in the first quarter of 2026, while availability fell to 17.7%. That backdrop supports quality space, yet the Union Square orbit still shows a mix of boutique lofts, park-front addresses, full-floor prebuilds, and flexible suites.
If you want to browse the wider submarket first, start with our Union Square office listings and our guide to private office space in Union Square. Those pages help you compare direct leases, subleases, and plug-and-play options before you narrow the building list.
Best office buildings in Union Square
200 Park Avenue South stands out for teams that want a park-front address, stronger client impression, and room to grow. Current leasing pages show a live 13,144-square-foot office opportunity. The building offers a redesigned attended lobby, operable windows, tenant-controlled air conditioning, and ceilings above 12 feet. Published building data places the property around 237,139 to 285,000 square feet, with typical floors published around 13,949 to 17,849 square feet. For a mid-size team that wants image and efficiency together, few Union Square addresses read better.
853 Broadway may be the most balanced Union Square choice for many growing companies. The building sits at the foot of Union Square and directly across from the transit hub. Current public listings show one live office around 7,997 square feet, while another leasing page shows availability from roughly 4,896 to 13,766 square feet. Renovation work added a new lobby, upgraded elevators, improved bathrooms, and a glass-heavy frontage. That combination works well for teams that want a full-floor identity, strong natural light, and a clean arrival without jumping to trophy rent levels.
860 Broadway fits teams that value flexibility, speed, and plug-and-play operations. Commercial listings show two full-build-out office floors, while public property records place the building at roughly 75,799 square feet. Current flex inventory there centers on the fifth and sixth floors and includes meeting rooms, café and lounge space, private offices, and uninterrupted Union Square Park views. If your group may add headcount quickly, this address makes sense because it lets you start smaller and expand faster.
41 Union Square West works beautifully for a small team that wants a boutique loft feel with almost no wasted space. A current listing shows 2,545 square feet on the 16th floor, available immediately. The suite comes furnished and wired, with exposed ceilings, polished concrete floors, one conference room, seating for up to 18, one private office, a café pantry, abundant light, and windows on four sides. Few small-team options in the district package that many practical features into one ready office.
37 Union Square West deserves attention from tenants who want direct Union Square positioning at a clearer asking rent. One live office listing shows 4,200 square feet at $60 per square foot. The suite includes four offices, a full kitchen, private bathrooms, and immediate availability. That makes it one of the easier buildings to underwrite for a 20-to-35-person company that wants the park address without the rent fog that surrounds many listings.
1 Union Square West gives smaller firms a rare entry point into one of Manhattan’s best-known corners. Current listings show five available spaces totaling 13,511 square feet, with a minimum divisible unit of 785 square feet. Published suites run from roughly 1,272 to 2,269 square feet, and the marketing notes call out high ceilings, large windows, and a renovated lobby. For firms under 15 people, that mix matters because it lets you buy the location first, then keep your footprint tight.
111–115 Fifth Avenue belongs on the shortlist when your team may outgrow a smaller Union Square building in one lease term. Current listing platforms show seven office listings totaling 114,487 square feet, plus large immediate floor blocks around 19,500 to 21,700 square feet. The property also carries LEED Gold status and sits about 0.3 miles from Union Square. This option suits mid-size tenants that expect sustained hiring and want one building that can absorb future expansion.
Which building fits your team size and workstyle
For teams under 15 people, focus on efficiency first. Small suites at 1 Union Square West make sense when you want an iconic address with a disciplined footprint. Flexible suites at 860 Broadway work well when you need shorter terms, shared amenities, or faster move-in. Meanwhile, 41 Union Square West offers a stronger boutique identity if you prefer your own front door and a more self-contained feel.
For teams around 15 to 35 people, the sweet spot usually sits between roughly 2,500 and 6,000 square feet. That range matches the current 2,545-square-foot offering at 41 Union Square West. It also lines up with the 4,200-square-foot office at 37 Union Square West. If you want turnkey examples right now, our Union Square furnished office space shows about 7,004 square feet on a full floor with more than 30 workstations, while our furnished Union Square office space offers 6,500 square feet with 28 sit-stand desks and room for about 43 people.
For teams around 35 to 80 people, full-floor logic starts to matter more. You want a stronger pantry, better conference ratio, and fewer circulation losses. That is where 853 Broadway rises quickly. A current 7,997-square-foot live listing fits many mid-size firms well, and the broader published availability band reaches into the low teens. 200 Park Avenue South also works for firms that want a more polished park-front posture and larger, more scalable floor plates.
For teams that expect hiring bursts, step-up buildings perform better than charming but constrained lofts. 111–115 Fifth Avenue gives you larger immediate blocks and future expansion room in one address. That matters when leadership wants to avoid a second move within two years. Our page on office space near Union Square for Flatiron tenants also helps if you need the Union Square commute pattern but want to widen the building pool by a few blocks.
Pricing, availability, and lease strategy
Union Square pricing only looks simple from a search page. In practice, you need to separate older value stock, boutique prewar product, renovated direct space, and flexible inventory. Current listing portals in the Union Square and Flatiron band show examples at $52 per square foot at 39 West 14th Street, $58 at 9 East 19th Street, and $60 at 37 Union Square West. At the same time, Midtown South’s broader first-quarter 2026 benchmark sat at $84.37 per square foot. That spread tells you one thing clearly: building quality and layout drive the real number more than the neighborhood label alone.
Availability also moves faster in this pocket than many tenants expect. A 2025 district update cited in local reporting put Union Square office availability at 10.9%, below Manhattan’s 17% at that time. The same coverage noted stronger foot traffic and improving retail occupancy around the square. In plain terms, good space does not linger forever here. When a furnished or prebuilt full floor opens near the park, teams need to move with intent.
Your lease structure should match your business, not just your move date. Choose flex space when headcount may swing or you want services included. Use a sublease when you value speed, furniture, and a shorter term. Pick a direct lease when you want the deepest control over branding, build-out, and long-term occupancy cost. Our guides to private office space in Union Square, Flatiron office rents explained, and Manhattan office rental cost by neighborhood can help you compare those paths more clearly.
Landlords in this area also prize certainty. Teams that show realistic headcount, clean financials, and a fast decision path usually negotiate better. That leverage grows when you compare buildings by cluster instead of falling in love with one tour. In Union Square, that means weighing park-front identity, Fifth Avenue polish, Broadway loft character, and flex-ready options side by side before you send paper.
What tenants should ask before they tour
How much space does a small team really need in Union Square?
A disciplined small team can often function well in 1,200 to 2,500 square feet if the layout uses glass offices, shared meeting rooms, and an efficient open plan. Current live examples include about 1,272 to 2,269 square feet at 1 Union Square West and 2,545 square feet at 41 Union Square West.
Where can a mid-size team find turnkey space now?
Start with 853 Broadway and current furnished local listings. The 7,004-square-foot full-floor office on our site and the 6,500-square-foot furnished option both show how Union Square can deliver near-term occupancy without a long construction run.
Which building gives the best commute story?
Park-front buildings around the square win that contest because they put nine subway services within a short walk. That matters for attendance, recruiting, and client convenience. 853 Broadway, 860 Broadway, 41 Union Square West, and 200 Park Avenue South all benefit from that advantage.
Which building feels best for brand image?
That depends on what you want clients and recruits to feel. Choose 200 Park Avenue South if you want a stronger polished arrival. Pick 853 Broadway if you want a high-identity Union Square address with full-floor energy. Go with 41 Union Square West if you want a boutique loft tone with immediate charm.
Do I need Union Square proper, or can I search a few blocks out?
You should usually start with Union Square proper, then widen the map only if budget or size demands it. That approach preserves the commute story and the neighborhood signal first. After that, nearby Flatiron blocks can expand your choices without breaking the user experience your staff wants.
Tenant-forward close
The best office buildings in Union Square do not all serve the same tenant. Some fit a 10-person leadership team that wants a polished boutique floor. Others suit a 50-person group that needs full-floor efficiency, better meeting ratios, and room to hire. Still others solve for speed through furnished or flexible setups.
That is why we shortlist buildings by headcount, image, commute, and negotiating leverage first. Then we compare the real options across Union Square and the nearby spillover streets. If you want the right match, not just the loudest listing, this is the way to search.
Fill out our 📋 online form or give us a call today 📞 212-967-2061 — let’s find the right office for your business.
