What is a group buy in Tampines GreenTopaz?

A group buy pools orders from Tampines GreenTopaz neighbours for the same home improvement. Every confirmed household pushes the whole estate to the next discount tier, and everyone gets the final unlocked price — including the first to join.

Yes. Joining takes under a minute and there is no payment upfront. We visit for a free measurement first, then send a quote at the group's current discount. You only commit when you confirm your quote.

How do the discount tiers work?

Each deal has tiers like "10 confirmed households → 10% off, 20 → 15% off". Only confirmed orders move the tier, so the numbers you see on the page are honest. When Tampines GreenTopaz hits a new tier, everyone's price drops together.

What happens if Tampines GreenTopaz doesn't reach the minimum?

The deal simply doesn't run — nobody pays anything. We may still quote you individually if you'd like the work done anyway.

TampinesKeys est. 20271 group buy live ↓

Tampines GreenTopaz

Tampines GreenTopaz is a BTO project in Tampines. Launched in the Jun 2024 BTO exercise, completion is estimated around Jul 2027. Here's how it's progressing, what's planned around it, and how to connect with future neighbours before move-in.

Building progress for Tampines GreenTopaz

BTO launchJun 2024
Estimated completionJul 2027est.

Dates are HDB estimates and can shift — progress shown is an estimate from those dates, not live construction status. Source: HDB launch-brochure estimates via housingmap.sg/bto, cron refresh.

What's around Tampines GreenTopaz

Straight-line distances from the middle of the estate.

MRT

Tampines West (DT31)280 m
Bedok Reservoir (DT30)1.2 km
Tampines (DT32)1.3 km

Primary schools

Junyuan Primary Schoolwithin 1 km
St. Hilda's Primary Schoolwithin 1 km
Tampines Primary Schoolwithin 1 km
St. Anthony's Canossian Primary School1–2 km
Red Swastika School1–2 km
Changkat Primary School1–2 km

Hawker centres

Tampines Street 11 Blk 137 (Tampines Round Market and Food Centre)520 m
Hawker Centre @ Our Tampines Hub1.0 km
Bedok North Street 4 Blk 85 (85 Fengshan Centre)1.3 km

Tampines GreenTopaz resources

Official documents and useful links for your new home, in one place.

Sales brochureHDB launch sales brochure (PDF) Original launch-day brochure, archived from housingmap.sg.

Guides for your move-in journey

10 Things to Install Before Moving Into Your BTOThe 10 things to install before moving into your BTO, in the order they should happen, from aircon piping to window mesh and laundry racks.8 min read BTO Flats in Singapore: Renovation Timeline From Keys to Move-InComplete BTO flats renovation timeline in Singapore. Learn defects inspection, permits, and key steps from key collection to move-in.10 min read Group Buy Singapore: 6 Ways to Save on Your Home RenovationRenovation costs in Singapore add up fast. Here are six practical ways — including group buying — to cut your reno budget without cutting corners.1 min read

Group buys in Tampines GreenTopaz

Group buys open as key collection gets closer. Follow the estate and you'll hear the moment the first one opens.

MeshMates · retractable insect & cat mesh

MeshMates Retractable Insect & Pet Mesh

Tampines GreenTopaz - Tampines

up to 11% off11% off

0 confirmed in Tampines GreenTopaz3 more → 3% off

Join this group buy

What flats resell for in the area

New flats in Tampines GreenTopaz can't be sold before their 5-year MOP, but recent resale transactions around Tampines are a useful reference for what homes here may be worth down the road.

Tampines · last 24 months

3-room: $486,000; median · 732 sold
4-room: $662,000; median · 1,747 sold
5-room: $800,000; median · 1,042 sold
Executive: $958,000; median · 326 sold

Aug 25 · $660,000Jul 26 · $675,000

Median 4-room resale price by month.

Recent transactions

Blk 890A Tampines Ave 1 · 3-room · storey 04 to 06$600,000Jul 26
Blk 909 Tampines Ave 4 · 3-room · storey 04 to 06$485,000Jul 26
Blk 809 Tampines Ave 4 · 3-room · storey 04 to 06$480,000Jul 26
Blk 878B Tampines Ave 8 · 3-room · storey 10 to 12$593,888Jul 26
Blk 601B Tampines Ave 9 · 3-room · storey 10 to 12$625,000Jul 26

Data: HDB resale transactions via data.gov.sg, updated 30 Jul 2026. Historical transactions, not a valuation of any flat.

How group buys work in Tampines GreenTopaz

What is a group buy in Tampines GreenTopaz?: A group buy pools orders from Tampines GreenTopaz neighbours for the same home improvement. Every confirmed household pushes the whole estate to the next discount tier, and everyone gets the final unlocked price — including the first to join.
Is it free to join?: Yes. Joining takes under a minute and there is no payment upfront. We visit for a free measurement first, then send a quote at the group's current discount. You only commit when you confirm your quote.
How do the discount tiers work?: Each deal has tiers like "10 confirmed households → 10% off, 20 → 15% off". Only confirmed orders move the tier, so the numbers you see on the page are honest. When Tampines GreenTopaz hits a new tier, everyone's price drops together.
What happens if Tampines GreenTopaz doesn't reach the minimum?: The deal simply doesn't run — nobody pays anything. We may still quote you individually if you'd like the work done anyway.