# I Observation House

Optical Shops & Optometrists in Hougang.

- Address: 1 Hougang Street 91, #01-11 Hougang 1, Singapore 538692
- Nearest MRT: Tongkang LRT (1681 m, ~21 min walk)
- UEN: 200409398E (registered 2004-07-27)

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Source: Lookup (https://lookup.sg) · Data as of October 2026 · Listings compiled from Singapore government open data (data.gov.sg), OneMap and Overture Maps places. Free listings never show contact details; featured listings are labelled.