# 2029 K Gc LLC

Business profile: public business information with links to supporting state records. Data as of October 16, 2026.

- Legal business name: 2029 K Gc LLC
- Alternative and DBA names: 621 West 48 Gc LLC; 645 Madison Gc LLC; Rockrose Construction (621W48-Gc) L.L.C.
- Entity type: LLC
- Original incorporation date: February 11, 1999
- Time in business: 27 years and 8 months
- Jurisdiction count: 2

## All known addresses

- 309 E 45th St, New York, NY 10017 (listed in New York)

## Registered states

- [District of Columbia](https://index.baselayer.com/dc/6aadf3462a0a065d): Foreign registration
- [New York](https://index.baselayer.com/ny/4061cb1a80b2907b): Domestic registration

Source: public state registration records. Missing values are not a negative finding.

Cite as: Baselayer Business Index (https://index.baselayer.com/business/4061cb1a80b2907b)