Latest Sale
$852,500
2026-03 · 4 Room
How Much Is a Flat at Block 401 Serangoon Ave 1 Worth?
4 Room, 5 Room · Built 1989 · 62 years remaining MOP Cleared
Median $/sqm
$5,976
Based on 26 txns
Total Txns
26
Since data available
5-Yr Trend
▲27.3%
vs 5 years ago
What's Your Flat Worth?
Select your flat type and storey band, then click Get Estimate. Change your selection at any time and get a new estimate.
Flat Type
Storey Band (closest to your floor)
How did you buy?
Estimated Upgrade Budget
▲ 27.3% 5-yr—
Cash
—
Spendable
CPF Refund
—
Back to CPF OA
Market Value Estimate —
Est. Purchase Price
· Affects CPF accrued interest
+CPF & Loan — view details →
Loan Type
Outstanding Loan (est.) —
CPF Principal (est.) —
CPF Accrued Interest (est.) —
+Selling Costs — view details →
Agent Commission (2%) —
Experienced agents often recover their fee through a higher sale price.
Conveyancing Lawyer (est.) −$500
Handles legal paperwork — choose HDB lawyer or private conveyancing firm
HDB Legal & Admin Fees
−$460 Transfer, mortgage discharge, title search, registration
Net Proceeds for Upgrade —
Market Demand
⏳ Lower transaction volume — pricing and timing matter more here. A local expert helps.
Based on recent sales data · Updates monthly
Sold at this block (6mo)
1 flats ⚡
AVG. DAYS TO OFFER
~180 days
Transaction density proxy
BUYER DEMAND
3.6 / 10
Block Specialists
Connect with agents who know this block — coming soon.
Block Specialists
Connect with agents who know this block
Specialist 1
156 transactions in Serangoon Ave 1
Highest: $1,090,000
Specialist 2
156 transactions in Serangoon Ave 1
Highest: $1,090,000
Specialist 3
156 transactions in Serangoon Ave 1
Highest: $1,090,000
1 / 2
Specialist 1
156 transactions in Serangoon Ave 1
Highest: $1,090,000
Specialist 2
156 transactions in Serangoon Ave 1
Highest: $1,090,000
Specialist 3
156 transactions in Serangoon Ave 1
Highest: $1,090,000
Specialist 4
156 transactions in Serangoon Ave 1
Highest: $1,090,000
Specialist 5
156 transactions in Serangoon Ave 1
Highest: $1,090,000
Specialist 6
156 transactions in Serangoon Ave 1
Highest: $1,090,000
Agent profiles launching soon
Lease Clock
Act Soon 0 yrs 62 years left 99 yrs
Key threshold: 60 years
Buyers will face resale restrictions after MOP
Your block has 62 years of lease left. A buyer who purchases today and waits out their 5-year MOP will be selling a flat under 60 years — which means their buyers face CPF and loan limits. Savvy buyers know this. It shrinks your pool and puts downward pressure on price.
An experienced agent can help you find motivated buyers and close before this becomes a bigger factor.
Transaction History 26 total
| Date | Floor | Type | sqm | Price | $/sqm |
|---|---|---|---|---|---|
| 2026-03 | 04 TO 06 | 4 Room | 105 | $852,500 | $8,119 |
| 2025-09 | 04 TO 06 | 4 Room | 103 | $790,000 | $7,670 |
| 2025-07 | 10 TO 12 | 4 Room | 109 | $855,000 | $7,844 |
| 2025-02 | 01 TO 03 | 4 Room | 105 | $795,888 | $7,580 |
| 2024-01 | 04 TO 06 | 5 Room | 121 | $862,000 | $7,124 |
| 2023-12 | 10 TO 12 | 4 Room | 93 | $678,000 | $7,290 |
| 2023-11 | 01 TO 03 | 4 Room | 109 | $750,000 | $6,881 |
| 2022-05 | 07 TO 09 | 4 Room | 109 | $670,000 | $6,147 |
| 2021-06 | 04 TO 06 | 4 Room | 93 | $560,000 | $6,022 |
| 2021-05 | 07 TO 09 | 4 Room | 109 | $632,000 | $5,798 |
| 2021-01 | 04 TO 06 | 4 Room | 105 | $580,000 | $5,524 |
| 2020-10 | 04 TO 06 | 4 Room | 105 | $598,000 | $5,695 |
| 2020-06 | 04 TO 06 | 4 Room | 93 | $515,000 | $5,538 |
| 2020-01 | 07 TO 09 | 4 Room | 105 | $630,000 | $6,000 |
| 2019-04 | 07 TO 09 | 4 Room | 103 | $560,000 | $5,437 |
| 2019-04 | 04 TO 06 | 4 Room | 103 | $612,000 | $5,942 |
| 2019-03 | 10 TO 12 | 5 Room | 121 | $755,000 | $6,240 |
| 2019-03 | 01 TO 03 | 4 Room | 105 | $575,000 | $5,476 |
| 2019-02 | 07 TO 09 | 5 Room | 121 | $745,000 | $6,157 |
| 2018-06 | 01 TO 03 | 5 Room | 121 | $670,000 | $5,537 |
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About Block 401 Serangoon Ave 1
Block 401 at Serangoon Ave 1 is a residential HDB block in Serangoon, Singapore, built in 1989 with approximately 62 years remaining on its 99-year lease. The block contains 4 Room, 5 Room flats, with resale prices ranging from $627,500 to $750,000 based on 26 recorded transactions. The most recent transaction was a 4 Room flat (storeys 04–06) that sold for $852,500 in Mar 2026. The current median price per square metre is $5,976. Over the past five years, resale prices have risen by approximately 27.3%.
Buyers can use CPF and get full bank financing for flats with more than 60 years of lease remaining — Block 401 has 62 years left, meaning buyers face no financing restrictions.
All data is sourced from data.gov.sg and updated monthly.
Frequently Asked Questions
How much is a flat at Block 401 Serangoon Ave 1?
Based on 26 recorded transactions, the median resale price ranges from $627,500 (4 Room) to $750,000 (5 Room). The most recent sale was $852,500 in 2026-03.
Median by flat type (last 24 months)
Flat Type Most Recent Median
4 Room $824,194
5 Room $750,000 (all-time)
What is my flat worth at Block 401?
The overall median resale price at Block 401 Serangoon Ave 1 is $824,194. Prices have risen 27.3% over the past 5 years.
How active is the resale market at Block 401?
Block 401 has recorded 26 resale transactions — roughly 1.1 sales per month over the past 24 months. The latest transaction closed in 2026-03.
What flat types are available at Block 401?
Block 401 Serangoon Ave 1 has 4 Room, 5 Room units. Median prices range from $627,500 to $750,000.
How much can I unlock to upgrade if I sell my HDB at Block 401?
Selling to upgrade means planning both timelines and funds. Your proceeds split into cash in hand (for your next downpayment and transition costs) and CPF refund (returned to CPF OA). Use the What's Your Flat Worth? calculator above to estimate the equity you can deploy for your next home.
What is the remaining lease for Block 401?
Block 401 was built in 1989 with a 99-year lease. It has approximately 62 years remaining. Lease decay accelerates below 40 years and affects buyer CPF eligibility.
How long does it take to sell an HDB flat?
The standard HDB resale process takes approximately 8–12 weeks from granting the Option to Purchase (OTP) to the completion appointment. This includes HDB resale application, HDB valuation, CPF usage approval, and final appointment scheduling.
Can I sell my HDB flat without an agent?
Yes — HDB's resale portal allows you to handle the transaction yourself. However, for owners upgrading to their next home, an experienced agent helps align pricing, buyer negotiation, and completion timing so your next purchase is less exposed to delays. The typical 1–2% commission is often recovered through a stronger sale outcome.
What are the costs of selling an HDB flat?
Typical costs for a seller:
Agent commission ~1–2% of sale price
Legal / conveyancing ~S$500 (HDB) or ~S$2,000 (private)
HDB admin fee S$80
Seller stamp duty None (after MOP)
Total (est.) on $824,194 $17,064 to $18,564