TOP is the Temporary Occupation Permit, which allows a new building to be occupied; CSC is the Certificate of Statutory Completion, which confirms the building has met every requirement and is formally complete. Buyers usually receive their keys soon after TOP, when the developer gives notice of vacant possession, and make the final payment when CSC is issued.
TOP: when the building can be lived in
The Building and Construction Authority issues the TOP once a building is safe to occupy: the structure is complete, fire safety systems work, and essential services such as lifts, water and power are in place. Some minor works may still be outstanding, which is why the permit is called temporary.
For buyers of an uncompleted home, TOP is the point at which the developer serves notice of vacant possession and hands over the keys. A quarter of the price becomes payable here under the staged schedule, a heavier instalment than any construction stage.
Before collecting keys, owners inspect their units and list defects. Anything listed within twelve months of vacant possession, the defects liability period, must be put right by the developer.
CSC: when the building is complete
The CSC follows once every outstanding requirement has been satisfied and the relevant authorities have signed off. It can come months after TOP, sometimes longer for large developments. The final 15% of the price is tied to this certificate.
CSC matters for a few practical reasons. Strata titles are issued around this time, the management corporation of the estate takes over from the developer, and the building's records are finalised.
Vacant possession and legal completion
Two dates in the sale and purchase agreement relate to these milestones:
- **Vacant possession** is the deadline for the developer to give you an empty, usable unit. If the developer is late, the standard agreement provides for compensation.
- **Legal completion** is the deadline for wrapping up the whole sale: CSC issued, title ready and final payment made. It is usually set at a fixed date or a few years after vacant possession, whichever comes first.
Project profiles in this guide show these dates where the developer has published them. Kassia on Flora Drive, for instance, lists vacant possession by 1 November 2029, with the sale to complete legally by 1 November 2032, or sooner if three years pass from handover first.
How the stages line up
The milestones fit into the progressive payment scheme like this:
| Milestone | Share of the price |
|---|---|
| Option granted | 5% |
| Sale and purchase agreement exercised | 15% |
| Construction stages (foundations to roads and drains) | 40% in total |
| TOP and notice of vacant possession | 25% |
| CSC | 15% |
Because the bank releases its share stage by stage, the TOP instalment usually comes mostly from the loan, and your monthly repayment rises noticeably at this point. The progressive payment calculator shows the effect for a price you enter, and the progressive payment guide explains each construction stage.
TOP for completed projects
For a home that is already built, TOP and CSC are history. Profiles of completed projects in this guide state the year of TOP, which helps you judge the building's age: Marina Collection received TOP on 11 March 2011, and Draycott 8 in 2006. Age matters for upkeep, for the sinking fund and, for leasehold estates, for the years left on the lease.
Industrial and commercial projects
Factories, offices and shops pass through the same two permits; their staged payments, though, are set by a separate statute governing commercial and industrial sales. Expected TOP dates are listed on profiles such as SKYE @ TUAS, expected in the first quarter of 2027, and GATE+, expected on 30 January 2029. For a business planning a move, TOP is the date to work back from.
Collecting the keys
Key collection usually happens in batches over several weeks after TOP. The developer sends a notice of vacant possession with the date from which you can collect, along with documents for the handover and the defects inspection.
Most owners walk through the unit carefully on the day, checking walls, floors, windows, doors, fittings and appliances, and noting anything that needs repair on the developer's defects form. Some hire an inspector for a more thorough check. Faults you notify during that twelve-month window are repaired at the developer's cost.
Before collecting keys, it is wise to arrange home insurance, utility accounts and any renovation contractor, because many owners want to start work soon after handover. Renovation must follow the estate's rules on working hours and approvals, which the developer or managing agent will supply.
Planning around the dates
If you are buying off plan, mark three dates in your calendar: expected TOP, the vacant possession deadline in your agreement, and legal completion. Plan your current lease or home sale around the first, budget for the jump in instalments that comes with it, and keep the 15% CSC payment ready even if it arrives later than you expect.
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