Office

100–104 Fifth Avenue — Flatiron / Union Square, New York, NY 10011

Space: 9,522 RSF (Office)
Asking Rent: $90,000/month
Availability (building marketing): Floor 7 — 9,522 RSF — Immediate

Quick rent math

• $90,000/mo = $1,080,000/yr
• $1,080,000 ÷ 9,522 RSF ≈ $113.42/RSF/yr

Location positioning

This building sits at the intersection of Union Square / Flatiron / Greenwich Village, on Fifth Avenue near West 15th Street—one of Midtown South’s most transit-rich, talent-dense office corridors.

Building profile (high level)

The property is marketed as a renovated, boutique Midtown South office building with meaningful capital improvements (common areas + infrastructure).
LoopNet’s building facts list it as an office property built/renovated 1905/2016 and note typical features like 24-hour access, on-site property manager, high ceilings, etc.

How to position the 9,522 RSF offering

This size is a strong fit for:

• Creative / tech / media teams seeking “Midtown South identity”
• Professional services wanting a prestigious Fifth Avenue address
• Hybrid users who need a single-floor HQ with room for conference + collaboration

The building’s own availability page highlights tower floor plates ~5,000 RSF up to base floors ~20,000 RSF, supporting flexible single-tenant or split occupancy concepts.

Summary (broker-ready)

100–104 Fifth Avenue (9,522 RSF office) at $90,000/month offers immediate availability in a landmark Midtown South location at the crossroads of Union Square and Flatiron, with boutique floorplate positioning and renovated building infrastructure.

If you want, paste the floor plan link (or tell me the ceiling height / window line / condition) and I’ll rewrite this as a tighter OM-style “Space Highlights” section (ideal layout, headcount fit, and use cases).