Sushi Express at Sun Plaza is the conveyor-belt sushi spot at 30 Sembawang Drive, #02-23, and its draw is the colour-coded plate system that starts at $1.50++ per plate. The catch most diners miss is the two plus signs. That $1.50++ is closer to $1.79 once the 9 percent GST and the 10 percent service charge are added at the till, so a stack of ten plates that reads $15 on the belt actually rings up around $18. This guide gives you the 2026 plate tiers, the Sembawang outlet's hours and unit number, when the cheaper buffet deals run and where, and the simple plate-counting maths that decides whether the conveyor belt or an all-you-can-eat session is the better value for how much you actually eat.
Sushi Express Sun Plaza sits on the second floor of the Sembawang mall at 30 Sembawang Drive, #02-23, Singapore 757713. The official Sushi Express outlet directory lists it open 11am to 9:30pm daily with last orders at 9pm, and reachable at 6257 0937. It is one of 39 Sushi Express outlets across the island, so the menu and plate pricing here track the national chain rather than anything Sembawang-specific.
The format is the standard kaiten, or conveyor-belt, model. Plates of nigiri, maki, gunkan and sides circle past your seat colour-coded by price, you take what you want, and the staff tally the colours at the end. There is also a tablet or counter for hot items and made-to-order dishes that do not ride the belt. Because the bill is just a count of plates, the only number you really need to manage is how many you pull, which is why the per-plate cost after tax matters more than the headline $1.50.
One practical note for north-side diners: Sushi Express is not halal-certified, so plan accordingly. If you are weighing a sushi run against other casual dining at the mall, treating it as a fixed line in your monthly spend is the cleaner habit, the same way you would budget any recurring eat-out in a personal budget.
Sushi Express prices by plate colour, not by individual item, which keeps the menu simple. As of June 2026 the standard chain tiers are $1.50, $2.00 and $3.00 per plate, before the ++ is applied. The cheapest tier covers everyday nigiri and sides like inari (fried tofu pouch), tamagoyaki (egg), crabstick, cucumber maki and chuka wakame. The middle and top tiers carry the richer cuts and premium toppings. The brand advertises more than 80 sushi varieties across the belt.
Now the part the sticker price hides. The ++ after each number means two charges get stacked on top for dine-in: a 10 percent service charge first, then 9 percent GST on the new subtotal. They compound slightly, so the quick rule is to multiply the menu price by about 1.19. A $1.50++ plate becomes roughly $1.79, a $2.00++ plate about $2.39, and a $3.00++ plate about $3.58. Across a meal that 19 percent is the difference between a $20 belt count and a $24 final bill.
Pricing for individual hot dishes and platters sits outside the colour system. Listing sites put the signature Aburi platter at around $39 and larger party platters near $45 as of 2026, and these are also quoted before tax and service unless flagged as takeaway. GST in Singapore has been 9 percent since 1 January 2024 and stayed at 9 percent in Budget 2026, so the 9 percent GST line on your receipt is not going to surprise you upward this year.
| Plate tier | Menu price | After GST + service (~x1.19) | Typical items |
|---|---|---|---|
| Cheapest tier | $1.50++ | ~$1.79 | Inari, tamago, crabstick, cucumber maki, wakame |
| Middle tier | $2.00++ | ~$2.39 | Richer nigiri, mixed maki, gunkan |
| Top standard tier | $3.00++ | ~$3.58 | Premium toppings, salmon/eel variants |
| Aburi platter (a la carte) | ~$39 | ~$46.40 | Seared signature platter |
A worked example beats a vague "affordable." Say two people share a typical meal: eight cheapest-tier plates and four middle-tier plates. On the belt that reads (8 x $1.50) + (4 x $2.00) = $20.00. Apply the 10 percent service charge to get $22.00, then 9 percent GST to reach $23.98. So a $20 belt count is really about $24 for two, or roughly $12 a head. Mix in a couple of $3.00++ plates and a drink and you are at $15 to $18 per pax fast.
That maths is why plate discipline, not menu choice, controls the bill at a kaiten spot. Each plate you grab off the belt on impulse adds about $1.79 to $3.58 after tax, and the count creeps quietly because nothing stops it. If you set a plate budget before you sit down, say twelve plates for two, you cap the meal at a known number instead of discovering it at the till. The same plate-counting discipline at a sushi belt is the small version of tracking any leisure spend, which is the whole point of keeping a savings goal visible: small recurring outlays decide the month, not the occasional big one.
Sushi Express periodically runs an all-you-can-eat "White Day" deal limited to the cheapest white plates. In March 2026 it ran on Tuesdays (3, 10, 17 and 24 March) from 3pm to 5pm, priced from $19.90 nett per person or $30.90 nett for a pair, which works out to about $15.50 each. The session was walk-in only, capped at 40 minutes, with a $10-per-100g charge for food left uneaten. Crucially, the participating outlets listed were Westgate, IMM, White Sands, Century Square, Funan, Paya Lebar Quarter, Hougang Mall and Waterway Point, plus Sushi Plus at 313@Somerset. Sun Plaza was not on that list, so check before you make the trip expecting a buffet there.
The break-even on a $19.90 buffet is straightforward: at about $1.79 a white plate after tax on the normal belt, $19.90 buys you roughly eleven plates worth of value. If you eat more than eleven white plates in 40 minutes you are ahead; if you eat eight and stop, ordering a la carte off the belt is cheaper. Heavy eaters win, light eaters lose, which is the same logic that governs every buffet decision, the way we broke it down in buffet versus a la carte.
Watch for opening-weekend specials too. Sushi Express ran an all-plates-at-$1.50++ promotion at its new Changi City Point outlet on 20 to 21 June 2026, with a 40-minute dining limit. These flash deals rotate by outlet and rarely land at Sun Plaza, so the realistic value play in Sembawang is disciplined a la carte ordering rather than waiting for a buffet that may not come to your mall.
Because every plate at Sun Plaza is ++ priced, the one lever you fully control is what you pay with. A dining-rewards or cashback card turns the 9 percent GST and 10 percent service you cannot avoid into a small rebate. A card returning 3 to 8 percent on dining shaves a few dollars off a $50 family bill, which over a year of casual sushi runs is not nothing. We compare the strongest options in our roundup of the best dining rewards credit cards.
The behavioural trap at any kaiten restaurant is the belt itself. Plates arrive whether you are hungry or not, and each one is a frictionless $1.79-plus decision, so the count outruns your appetite. Order hot mains from the tablet to anchor the meal, take belt plates deliberately rather than reflexively, and tally roughly as you go. Treat the sushi line like any other discretionary spend you would slot into a monthly budget: small, recurring, and easy to let slide if you never look at it.
Sushi Express Sun Plaza is at 30 Sembawang Drive, #02-23, Singapore 757713, on the second floor. The official Sushi Express directory lists it open 11am to 9:30pm daily with last orders at 9pm, contactable at 6257 0937, as of June 2026.
Plates are colour-coded at $1.50, $2.00 and $3.00 before tax as of June 2026. Add the 10 percent service charge and 9 percent GST for dine-in and a $1.50++ plate is about $1.79, a $2.00++ plate about $2.39, and a $3.00++ plate about $3.58.
Not as a rule. The March 2026 White Day all-you-can-eat deal (from $19.90 nett) ran only at outlets like Westgate, IMM, Funan and Waterway Point, not Sun Plaza. Buffet runs rotate by outlet, so always confirm the current participating list before heading down.
The ++ means the price excludes the 10 percent service charge and 9 percent GST that are added for dine-in. The service charge is applied first, then GST on top, so multiply the menu price by roughly 1.19 to estimate what you will actually pay per plate.
This is general financial information for Singapore, not personal financial advice. Figures change — verify current rates against the official sources above before acting. See our full disclaimer.