Prerequisites
- ✓Determine if your stays are under 30 days — LL18 only applies to <30 day rentals
- ✓Verify Class A vs Class B Multiple Dwelling classification on the building
- ✓Confirm ownership / lease structure that authorizes operation
TL;DR
Determine if LL18 applies (only sub-30-day stays). Pull the building's Certificate of Occupancy. If proceeding, register with the Mayor's Office of Special Enforcement (OSE) — fee around $145, processing 4–8 weeks. Post-LL18, booking platforms verify registration before listing. Consider whether 30-day-plus residential is the cleaner path.
Step-by-step
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1. Verify LL18 actually applies
LL18 only catches rentals under 30 days. If you're operating 30-day-plus residential coliving, LL18 doesn't apply at all. Restructuring stays to 30+ days is the cleanest exit from LL18 burden.
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2. Pull the Certificate of Occupancy
DOB online portal (BIS). Verify the building is Class B (permits transient occupancy) or Class A (permits 30+ day only). LL18 + Class A = sub-30-day rentals are not legal regardless of registration. Don't proceed with registration if the building is Class A and you intended sub-30-day operation.
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3. Confirm authorized representative
OSE registration requires a verified host who must be present during stays and limits the rental to 2 paying guests. This is structural — coliving with multiple-bed dorm-style operations doesn't fit the LL18 host model.
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4. Register with OSE
Apply via NYC OSE portal. Fee around $145. Provide CO, lease/deed, host ID, photos. Processing 4–8 weeks.
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5. Distribute registration number to platforms
Booking.com, Airbnb, VRBO will not display unregistered listings post-LL18. Provide the registration number on each platform's verification flow.
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6. Monitor for OSE inspections
OSE actively inspects suspected illegal hotels. Maintain documentation: stay logs, host-presence proof, guest counts. Inspections become routine after platforms flag listings.
Common issues + fixes
×Registration denied — Class A building with sub-30-day intent
→MDL §4 prohibits sub-30-day occupancy in Class A. The fix is to either restructure to 30+ day residential, find Class B inventory, or relocate the operation. There is no LL18 path for Class A sub-30-day.
×Booking platform delisting despite registration
→Verify the platform has acknowledged your registration via their LL18 verification flow. Each platform has separate sync — registration with OSE doesn't automatically enable platform listing.
×Operating multi-guest dorm with single LL18 registration
→LL18 caps the rental at 2 paying guests. A traditional coliving dorm structure is incompatible. The compliant model is 30-day-plus tenancy in Class A, or genuinely small Class B SRO inventory.
Frequently Asked Questions
Does LL18 apply to 30-day-plus coliving?
No. LL18 only catches rentals under 30 days. Most NYC coliving operators (Common, Outsite NYC) operate 30-day-plus and are entirely outside LL18.
What does LL18 registration cost?
Approximately $145 for the OSE application. The bigger cost is structural — LL18's 2-guest cap limits coliving density, and the 'host present during stays' rule is incompatible with most operator-led structures.
Can I run coliving in NYC without LL18 registration?
Yes, if all stays are 30 days or longer. This is the path almost every viable NYC coliving operator has chosen since LL18 took effect.
Regulatory deep-dive
NYC regulatory deep-dive →