One of the first small surprises for people who have just moved from mainland China is how compact and logical singapore addresses are. There is no long chain of province, city, district, and street name to write out. Instead, a full address usually fits on two short lines, and the six-digit postal code does a lot of the work of pointing a courier straight to your building. Once you understand the pattern, filling in delivery forms, giving a Grab driver your location, and receiving mail all become simple. This is a practical guide to how the system works and how to make sure your letters and parcels reach you.
How a Singapore Address Is Built
A typical residential address in Singapore has a few standard parts, and they are almost always written in the same order:
- Block number, written as “Blk” or “Block”, for example Blk 123. Public housing (HDB) estates and many condominiums are made up of numbered blocks.
- Street name, for example Ang Mo Kio Avenue 3.
- Unit number, written as
#12-345. The number before the dash is the floor, and the number after it is the specific unit on that floor. So#12-345means floor 12, unit 345. - Postal code, a six-digit number that is unique to the building.
Put together, a full address looks like this:
Blk 123 Ang Mo Kio Avenue 3, #12-345, Singapore 560123
Landed houses (terrace, semi-detached, and bungalow homes) have a house number and street name but no block or unit, for example 12 Jalan Example, Singapore 123456. Offices and shophouses follow the same logic, with a unit number for the specific suite.
The hash symbol matters. When someone asks for your “unit number”, they mean the #floor-unit part. Delivery riders rely on it to find your front door once they reach the block, so always include it.
The Six-Digit Postal Code
The postal code is the clever heart of the system. Every building in Singapore has its own unique six-digit code. The first two digits indicate a broad postal district (sector), and the full six digits pin down the exact building. Because the code is so precise, many delivery apps and taxi bookings only need your postal code and unit number to route to you, without even reading the street name.
This is quite different from the postal codes many newcomers are used to in China, where a six-digit code covers a whole city or district rather than a single building. In Singapore, if you know a building’s postal code, you effectively know exactly where it stands. A handy habit is to save your home and office postal codes in your phone. When you book a Grab or key an address into a food delivery app, typing the postal code usually auto-fills the block and street for you.
You can look up any building’s postal code using the free OneMap service or the SingPost postal code search. If you are ever unsure of your own code, it is printed on official letters, your tenancy agreement, and utility bills.
China Addresses vs Singapore Addresses
The structure differs enough that it is worth seeing side by side. The biggest shift is that Singapore drops the province and city layers entirely and leans on the block, unit, and postal code instead.
| Feature | China address | Singapore address |
|---|---|---|
| Order | Largest to smallest (province, city, district, road) | Block and street, then unit, then postal code |
| Building identifier | Estate name, building, unit | Block number plus unit #floor-unit |
| Postal code covers | A district or city area | One specific building |
| Postal code length | Six digits | Six digits |
| Typical length | Several lines | Two short lines |
| Written language | Usually Chinese characters | English |
The practical takeaway is that in Singapore you rarely need to describe your area in words. The block number, unit, and postal code are enough for any courier or driver to find you.
Receiving Mail and Your Letterbox
Most residents receive letters through a letterbox, a small locked compartment in a bank of boxes on the ground floor of HDB blocks and condominiums, or by the gate for landed homes. Your letterbox is labelled with your unit number. When you move in, your landlord or the building management gives you the key. If you rent, check that the letterbox key is handed over along with the flat keys.
SingPost, the national postal service, delivers ordinary letters to these boxes on working days. It plays a role similar to China Post for everyday mail. Clear your letterbox regularly, because important items such as government letters, bank cards, and bills still arrive by post. If mail is piling up while you travel, SingPost offers a hold-mail service you can arrange in advance.
If you receive a letter addressed to a previous tenant, you can write “return to sender” or “moved away” on the envelope and drop it back into any red SingPost posting box.
Getting Parcels Delivered
Parcels work a little differently from letters because they usually will not fit in a letterbox. You have a few common options:
- Doorstep delivery. For online orders from Shopee, Lazada, and most local shops, the rider brings the parcel to your unit and may call or message you first. This is where your
#floor-unitnumber really matters, so always fill it in at checkout. - Parcel lockers. SingPost runs a network of self-collection lockers (POPStation), and many estates have locker banks where couriers drop your parcel. You get a code by SMS and collect it at your convenience, which is useful if you are often out.
- Collection points. Some sellers let you pick up from a nearby convenience store or authorised point.
A few tips make deliveries smoother. Add a short delivery instruction at checkout, such as “leave at door” or “call on arrival”, since not every rider will ring the bell. Save your address in each shopping app so you do not retype it. If your building has a security guard or concierge, ask whether they accept parcels on your behalf. And keep your phone number correct in the app, because riders here typically contact you by call or WhatsApp rather than through the platform only.
A Few Practical Habits
To settle in quickly, write your full address down once in the correct format and keep it in your notes app to copy and paste. Give friends and official bodies the version with the unit number and postal code. When couriers or visitors are lost, the fastest fix is simply to send them your postal code, since it drops a pin on the exact building. Rules and services can change over time, so confirm details such as hold-mail or locker options on the official SingPost website.
Explore More
Sorting out your address is one piece of settling into a new home. Once your place is set up, our guide to setting up mobile and broadband as a newcomer helps you get connected, and utilities and home setup for newcomers covers power, water, and the essentials. For the bigger picture of finding and moving into a place, see renting your first home as a chinese newcomer.
Frequently Asked Questions
What do I write if my address has no block number? Landed homes, offices and some other buildings simply use a house or building number and the street name, followed by Singapore and the six-digit postal code. A unit number is added only where the building has separate units, such as an office suite or shophouse unit.
How do I find my postal code if I forgot it? Look at official letters, your tenancy agreement or utility bills, where it is usually printed. You can also search the address on OneMap or the SingPost postal code search, both free. Every building has its own six-digit code, so the result should be exact.
Do I need to include the unit number when ordering food delivery? Yes, always. The postal code gets the rider to your block, but the #floor-unit number is how they find your door. Leaving it out is a common reason for failed or delayed deliveries, so fill it in and add a delivery instruction if needed.
What should I do if a letter for the previous tenant keeps arriving? Write ‘return to sender’ or ‘moved away’ on the envelope and drop it into any red SingPost posting box. Do not open it. If it keeps happening, tell your landlord or the sender, since important mail such as bank letters should be redirected.
Can I get my mail held while I travel? Yes. SingPost offers a hold-mail service that you can arrange in advance, so letters do not pile up in your letterbox while you are away. Check the SingPost website for how to apply, the duration allowed and any fee, as these can change.