The block
- Completed
- 1988
- Lease
- From 1989, ends 2088. About 61 years left
- Storeys
- 11
- Flats
- 60: 40 4-room, 20 5-room
- Town
- Serangoon
Resale prices at Blk 405 Serangoon Avenue 1
| Flat type | 2024 | 2025 | Serangoon median |
|---|---|---|---|
| 4-room | S$770,444 | - | S$660,000 |
| 5-room | S$882,500 | S$990,000 | S$830,000 |
Median price by year of registration.
What is my flat at Blk 405 Serangoon Avenue 1 worth?
Pick your flat type and floor for an instant range based on this block's own resales.
A guide only. Condition, facing, corner units and renovation can move the price 5 to 10% either way.
Latest sales
| Month | Type | Storey | Size | Price |
|---|---|---|---|---|
| May 2025 | 5-room Improved | 04 to 06 | 123 sqm 1,324 sqft | S$990,000 S$748 psf |
| Oct 2024 | 4-room New Generation | 04 to 06 | 94 sqm 1,012 sqft | S$708,000 S$700 psf |
| Sept 2024 | 5-room Improved | 07 to 09 | 121 sqm 1,302 sqft | S$975,000 S$749 psf |
| Jul 2024 | 4-room Model A | 04 to 06 | 103 sqm 1,109 sqft | S$822,888 S$742 psf |
| Jun 2024 | 5-room Improved | 01 to 03 | 121 sqm 1,302 sqft | S$790,000 S$607 psf |
| May 2024 | 4-room New Generation | 04 to 06 | 94 sqm 1,012 sqft | S$718,000 S$710 psf |
| Feb 2024 | 4-room Model A | 10 to 12 | 111 sqm 1,195 sqft | S$848,666 S$710 psf |
Rent at Blk 405 Serangoon Avenue 1
At these figures a 4-room flat here earns a gross yield of about 5.5% before property tax and other costs.
Whole-flat rentals approved by HDB since Oct 2024. Rooms let out separately aren't included.
Flat layouts at Blk 405 Serangoon Avenue 1
HDB records the flat model of every resale. These are the layouts sold here, with the typical size.
| Flat type | Model | Typical size | Sales |
|---|---|---|---|
| 4-room | New Generation | 94 sqm (1,012 sqft) | 2 |
| 4-room | Model A | 107 sqm (1,152 sqft) | 2 |
| 5-room | Improved | 121 sqm (1,302 sqft) | 3 |
Model names come from HDB. "Improved", "New Generation" and "Model A" flats of the same type can differ by 10 sqm or more, so compare sizes, not just room counts.
1-minute quizzes for owners at Blk 405 Serangoon Avenue 1
What is your flat at Blk 405 Serangoon Avenue 1 worth?
Send us your floor and flat type. We'll reply with a valuation range based on the latest sales here and at nearby blocks, and what a sale would leave you after your loan and CPF refund.
Common questions
How much is a 4-room flat at Blk 405 Serangoon Avenue 1?
4-room flats at Blk 405 Serangoon Avenue 1 sold for a median S$770,444 since Oct 2023, or about S$710 per square foot. The range was S$708,000 to S$848,666. Floor level, condition and the remaining lease explain most of the gap.
How many years are left on the lease at Blk 405 Serangoon Avenue 1?
The lease started in 1989 and runs for 99 years to 2088, so about 61 years are left. Banks and CPF limit how much a buyer can borrow and use once fewer than 60 years remain, which affects who can buy.
How much rent can I get at Blk 405 Serangoon Avenue 1?
HDB approved 1 4-room rental here in the last 12 months, at a median S$3,500 a month (S$3,500 to S$3,500). See more in the HDB rental rates checker.
What is my flat at Blk 405 Serangoon Avenue 1 worth?
Recent sales at the block are the best guide, adjusted for your floor, facing and condition. Send us your unit and we'll reply with a valuation range on WhatsApp.
Other blocks on Serangoon Avenue 1
All HDB blocks in Serangoon ยท All towns
Source: HDB resale flat prices, renting out of flats and HDB property information, from data.gov.sg. Resales from Oct 2023 to Oct 2026. Prices are what buyers paid; your flat's value depends on its floor, facing, condition and lease.