You are trained on data up to October 2023.

The postal code "640221" corresponds to Block 221 Boon Lay Place, which is located in the Jurong West HDB Town in Singapore. Here are some key points about this location:

- Location: It is situated in the Jurong West HDB Estate, making it part of one of the larger HDB towns in Singapore.
- Accessibility: The area is well-connected, with nearby MRT stations including Jurong West (JS6), Corporation (JS5), and Lakeside (EW26).
- Amenities: The vicinity includes several primary schools such as Boon Lay Garden Primary School, Rulang Primary School, and Corporation Primary School. Other amenities include shopping centers, markets, and community facilities.
- Property Type: The properties in this area are primarily HDB flats, with various configurations such as 3-room, 4-room, and 5-room units available.
- Market Information: You can find listings for sale and rent on EdgeProp Singapore, which include details such as floor area, pricing, and recent transaction data.

For more detailed information, including current listings and market trends, you can use the search and research tools available on EdgeProp Singapore.