A floor-unit number and a six-digit postal code are different fields. A value such as #08-12 belongs in the unit information, not in Postal Code.

The example below illustrates field layout using a fictional street. It is not a verified mailing address.

Address layout example

12 Example Road
#08-12
SINGAPORE 018956
Field labelMeaning
Block / House numberBlock / house number
Street nameStreet name
Floor-unitFloor-unit number
Postal codeSix-digit postal code

Where should #08-12 go?

Use a Unit or Apartment field when the form provides one. With a two-line address form, place unit information on the second line and keep the street and house number on the first. After copying a full address, verify that parsing can recover the separate fields instead of checking only the visual result.

Why avoid a numeric unit field?

The hash and hyphen are text characters that should survive validation. A numeric input or aggressive cleanup rule can turn the unit into 812. Test typing, pasting, autofill, saving and reopening the form. Also cover an address without a unit according to the receiving form’s rules.

How do I keep the postcode separate?

Use distinct Postal Code and Address Line 2 fields with different examples. Store a value such as 018956 as text. Singapore may appear as both city and country, but the Central, East and West regions in this generator are configuration choices, not a required State field. Verify real address matches separately.

Regression checklist

What the generator currently covers

Current addressLine2 output uses a generic Unit / Block fixture, not an automatic #floor-unit format. Add a dedicated #08-12 case when testing that syntax.

Try the Singapore address generator

Reference

IRAS · House and unit numbers