Agree with the completion period which is stated in S&P and since the signing was at same time than theoretically the completion should be at same time.
The following scenarios for discussion:
1. Under DIBS developer will be bearing the interest.
- Let's say the house price is 400,000, than the interest to be paid by SPS (as per the discount of 3% given) is estimated at RM12,000 for 24 months or at an average of RM500 per month. If the project is completed 6 months ahead, than they just pay RM9,000 for interest and remaining RM3,000 is additional profit for SPS. The actual amount should be more than RM3,000 as the calculation was based on average interest paid.
2. Without DIBS - Discount of RM12,000 given upfront to th purchasers. As such SPS will complete the house by 24 th month as they gain nothing by completing the project early.
Most probably houses with DIBS will be completed faster compared to without DIBS. Let's see the actual results in 2 years time.
However, IMHO SPS being a top class developer won't be so "kai-kow" (calculative) in their actual delivery date, so let's see in 24 months time (or in my analysis definitely shorter than 2 years time)