Block 405 Serangoon Ave 1
405 Serangoon Ave 1, Singapore 550405
Block 405 Serangoon Ave 1 is an HDB block in Serangoon, completed in 1988, with 60 dwelling units. Across 74 resales on record, 4-Room flats have recently resold around S$740k (S$608 psf, 111 sqm). The lease has approximately 63 years remaining.
What are the key facts about Block 405 Serangoon Ave 1?
Block 405 Serangoon Ave 1 is an HDB block in Serangoon, completed in 1988, with 60 dwelling units.
- Town
- Serangoon
- Planning area
- Serangoon
- Completed
- 1988
- Storeys
- 11
- Total units
- 60
- Flat model
- Model A · Improved
- Market segment
- OCR
- Median resale
- S$740k
- Last transacted
- May 2025
- Remaining lease
- ≈ 63 years
What are resale prices at Block 405 Serangoon Ave 1?
4-Room flats have recently resold around S$740k (S$608 psf), from 74 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| 4-Room | 49 | S$632,000recent | 111 sqm | S$534 psf |
| 5-Room | 25 | S$585,000recent | 123 sqm | S$442 psf |
Live now: 0 flats listed for sale at this block and 4 for rent — search all listings.
“Recent” medians use the latest transactions; for older blocks the all-time median spans 30+ years and understates today’s price. Source: HDB resale caveats, through May 2025.
What rent and yield does Block 405 Serangoon Ave 1 get?
Flats at Block 405 Serangoon Ave 1 have recently sublet for a median of S$3,700/mo, an indicative gross rental yield of about 6.0% (from 10 recent rental contracts).
Median rent
S$3,700/mo
10 recent contracts
Gross rental yield
6.0%
indicative, gross
Annual rent
S$44,400
median × 12 months
| Flat type | Contracts | Median rent |
|---|---|---|
| 4-Room | 4 | S$3,700/mo |
| 5-Room | 6 | S$3,600/mo |
HDB subletting requires the flat owner to have met the 5-year Minimum Occupation Period (MOP), so the rental sample per block is small — treat the yield as indicative. Latest contract Nov 2025. Source: HDB rental (subletting) data.
What has recently sold at Block 405 Serangoon Ave 1?
Block 405 Serangoon Ave 1 has 74 recorded resales; the most recent transacted at S$990,000 in May 2025 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| May 2025 | 5-Room | 04 TO 06 | 123 sqm | S$990,000 |
| Oct 2024 | 4-Room | 04 TO 06 | 94 sqm | S$708,000 |
| Sept 2024 | 5-Room | 07 TO 09 | 121 sqm | S$975,000 |
| Jul 2024 | 4-Room | 04 TO 06 | 103 sqm | S$822,888 |
| Jun 2024 | 5-Room | 01 TO 03 | 121 sqm | S$790,000 |
| May 2024 | 4-Room | 04 TO 06 | 94 sqm | S$718,000 |
| Feb 2024 | 4-Room | 10 TO 12 | 111 sqm | S$848,666 |
| Mar 2023 | 4-Room | 01 TO 03 | 111 sqm | S$670,000 |
| Jan 2023 | 5-Room | 01 TO 03 | 123 sqm | S$765,000 |
| Jun 2022 | 4-Room | 10 TO 12 | 113 sqm | S$739,888 |
| May 2021 | 4-Room | 04 TO 06 | 111 sqm | S$623,888 |
| Oct 2020 | 5-Room | 10 TO 12 | 123 sqm | S$715,000 |
What flat types are in Block 405 Serangoon Ave 1?
Block 405 Serangoon Ave 1 has 60 units, mostly 4-Room flats of the Model A / Improved model.
Unit stock by flat type, from the HDB property information dataset.
Where is Block 405 Serangoon Ave 1?
Block 405 Serangoon Ave 1 is an HDB block in Serangoon.
Block 405 Serangoon Ave 1 is an HDB block located along Serangoon Ave 1. The block is recorded as completed around 1988, with up to 11 storeys. It has an estimated 60 residential units based on the HDB property information dataset. Flat types in the block include 4-room and 5-room units.
The address is Block 405 Serangoon Ave 1, Singapore 550405. It is part of District 19, Serangoon Garden / Hougang / Punggol, the Serangoon planning area. The block falls within the North-East Region and the OCR market segment.
The nearest rail connection is Serangoon MRT, approximately 325m away, around 5 minutes on foot. Nearby amenities include NEX for shopping, COLD STORAGE SINGAPORE (1983) PTE LTD for groceries, Woodleigh Village Hawker Centre for food options, Upper Serangoon Park for greenery and recreation, and Braddell Heights Community Club for community facilities.
How far is Block 405 Serangoon Ave 1 from MRT and schools?
The nearest MRT/LRT to Block 405 Serangoon Ave 1 is Serangoon MRT, about 325 m away (~5 min walk). 5 schools are within 1 km, including 1 primary school.
Getting around
- Serangoon MRT325 m · ~5 min
- Woodleigh MRT973 m · ~15 min
Schools nearby
Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
- Zhonghua Secondary SchoolSecondary schoolwithin 1 km384 m
- St. Gabriel's Secondary SchoolSecondary schoolwithin 1 km389 m
- Yangzheng Primary SchoolPrimary schoolwithin 1 km · P1 priority480 m
- Nanyang Junior CollegeJunior collegewithin 1 km758 m
- Maris Stella High SchoolMixed-level schoolwithin 1 km898 m
- St. Gabriel's Primary SchoolPrimary school1.2 km
- Peicai Secondary SchoolSecondary school1.3 km
- Paya Lebar Methodist Girls' School (Primary)Primary school1.4 km
Shops, food & parks
Straight-line distances from the block. Source: PropKaki amenities data.
What does it cost to buy a flat at Block 405 Serangoon Ave 1?
Buying a flat at Block 405 Serangoon Ave 1 (~S$740k) needs about S$5,898/mo in income and S$2,778/mo in repayments, after S$16,797 stamp duty and a S$185k downpayment.
Illustrative, for a buyer at the recent median resale price (S$740k) — 25% downpayment (bank-loan basis), 25-year loan at 3.5% p.a. Rates as of May 2026. Run it for your own profile →
Buyer's Stamp Duty
S$16,797
BSD, tiered
Downpayment (25%)
S$185k
cash + CPF
Monthly instalment
S$2,778/mo
25y @ 3.5%
Income required
S$5,898/mo
MSR/TDSR @ stress rate
First-time HDB buyers pay no Additional Buyer’s Stamp Duty (ABSD) and may qualify for CPF Housing Grants of up to S$80,000+, which lower the cash required — these are not included above. An HDB concessionary loan also allows a smaller downpayment.
Wondering whether it will hold its value? See do HDB flats actually make money? →
Eyeing Block 405 Serangoon Ave 1? Ask what it's worth.
Recent transacted prices, what's nearby, and whether an asking price is fair.
PropKakiRecent sales at Block 405 Serangoon Ave 1 land close to the town median — fair value, no big premium.
Frequently asked questions about Block 405 Serangoon Ave 1
How much does a 4-Room flat at Block 405 Serangoon Ave 1 cost?⌄
4-Room flats at Block 405 Serangoon Ave 1 have recently resold for a median of about S$740k (S$608 psf), from 74 resales on record (HDB caveats). The exact price depends on the flat type, floor and remaining lease.
What are resale prices at Block 405 Serangoon Ave 1 by flat type?⌄
4-Room ≈ S$632k; 5-Room ≈ S$585k (median resale, HDB caveats).
Is Block 405 Serangoon Ave 1 worth buying given its remaining lease?⌄
Block 405 Serangoon Ave 1 has about 63 years left on its 99-year lease (completed 1988). That's a long runway, so CPF usage and bank financing are generally unrestricted. The figure is taken from the most recent transacted flat.
What is the rental yield at Block 405 Serangoon Ave 1?⌄
Gross rental yield at Block 405 Serangoon Ave 1 is about 6.0%, based on a median subletting rent of about S$3,700/mo against a resale price of about S$740k. HDB subletting requires the owner to have met the 5-year MOP, so the per-block sample is small — treat this as indicative.
How much do I need to earn to buy a flat at Block 405 Serangoon Ave 1?⌄
For a flat at about S$740k on a 25-year HDB-style loan, you'd need roughly S$5,898/mo in household income, with repayments around S$2,778/mo after a S$185k downpayment. First-timer grants of up to S$80,000+ (not included) lower the cash needed.
What is the nearest MRT to Block 405 Serangoon Ave 1?⌄
The nearest MRT/LRT station to Block 405 Serangoon Ave 1 is Serangoon MRT, about 325 m away (~5 min walk).
Which primary schools are within 1 km of Block 405 Serangoon Ave 1?⌄
Yangzheng Primary School is within 1 km of Block 405 Serangoon Ave 1 — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.