Block 420 Serangoon Ctrl
420 Serangoon Ctrl, Singapore 550420
Block 420 Serangoon Ctrl is an HDB block in Serangoon, completed in 1988, with 96 dwelling units. 4-Room flats have recently resold around S$828k (105 sqm), from 78 resales on record. The lease has approximately 63 years remaining.
What are the key facts about Block 420 Serangoon Ctrl?
Block 420 Serangoon Ctrl is an HDB block in Serangoon, completed in 1988, with 96 dwelling units.
- Town
- Serangoon
- Planning area
- Serangoon
- Completed
- 1988
- Storeys
- 13
- Total units
- 96
- Market segment
- OCR
- Median resale
- S$828k
- Last transacted
- Apr 2026
- Remaining lease
- ≈ 63 years
What are resale prices at Block 420 Serangoon Ctrl?
4-Room flats have recently resold around S$828k (S$733 psf), from 78 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| 4-Room | 62 | S$622,000recent | 105 sqm | S$547 psf |
| 5-Room | 16 | S$615,000recent | 121 sqm | S$472 psf |
“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 Apr 2026.
What has recently sold at Block 420 Serangoon Ctrl?
Block 420 Serangoon Ctrl has 78 recorded resales; the most recent transacted at S$980,000 in Apr 2026 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| Apr 2026 | 5-Room | 07 TO 09 | 121 sqm | S$980,000 |
| Oct 2025 | 4-Room | 10 TO 12 | 103 sqm | S$858,888 |
| Jun 2025 | 4-Room | 10 TO 12 | 108 sqm | S$853,888 |
| May 2025 | 4-Room | 04 TO 06 | 105 sqm | S$860,000 |
| Dec 2024 | 4-Room | 01 TO 03 | 105 sqm | S$790,000 |
| Sept 2024 | 5-Room | 10 TO 12 | 123 sqm | S$1,030,000 |
| Jul 2024 | 4-Room | 10 TO 12 | 105 sqm | S$828,000 |
| Apr 2024 | 5-Room | 04 TO 06 | 121 sqm | S$990,000 |
| Jun 2021 | 5-Room | 07 TO 09 | 121 sqm | S$788,888 |
| Mar 2021 | 4-Room | 07 TO 09 | 105 sqm | S$605,000 |
| Mar 2020 | 5-Room | 04 TO 06 | 121 sqm | S$668,000 |
| Jul 2019 | 4-Room | 04 TO 06 | 105 sqm | S$570,000 |
What flat types are in Block 420 Serangoon Ctrl?
Block 420 Serangoon Ctrl has 96 units, mostly 4-Room flats.
Unit stock by flat type, from the HDB property information dataset.
How far is Block 420 Serangoon Ctrl from MRT and schools?
The nearest MRT/LRT to Block 420 Serangoon Ctrl is Serangoon MRT, about 309 m away (~5 min walk). 5 schools are within 1 km, including 1 primary school.
Getting around
- Serangoon MRT309 m · ~5 min
- Bartley MRT929 m · ~15 min
Schools nearby
Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
- St. Gabriel's Secondary SchoolSecondary schoolwithin 1 km315 m
- Zhonghua Secondary SchoolSecondary schoolwithin 1 km638 m
- Yangzheng Primary SchoolPrimary schoolwithin 1 km · P1 priority727 m
- Maris Stella High SchoolMixed-level schoolwithin 1 km914 m
- Nanyang Junior CollegeJunior collegewithin 1 km966 m
- Paya Lebar Methodist Girls' School (Primary)Primary school1.1 km
- Paya Lebar Methodist Girls' School (Secondary)Secondary school1.1 km
- Peicai Secondary SchoolSecondary school1.3 km
Shops, food & parks
Straight-line distances from the block. Source: PropKaki amenities data.
What does it cost to buy a flat at Block 420 Serangoon Ctrl?
Buying a flat at Block 420 Serangoon Ctrl (~S$828k) needs about S$6,601/mo in income and S$3,109/mo in repayments, after S$19,440 stamp duty and a S$207k downpayment.
Illustrative, for a buyer at the recent median resale price (S$828k) — 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$19,440
BSD, tiered
Downpayment (25%)
S$207k
cash + CPF
Monthly instalment
S$3,109/mo
25y @ 3.5%
Income required
S$6,601/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.
Frequently asked questions about Block 420 Serangoon Ctrl
What is the resale price at Block 420 Serangoon Ctrl?⌄
4-Room flats at Block 420 Serangoon Ctrl have recently resold around S$828k (105 sqm), based on HDB resale caveats. Resale prices vary by flat type, floor and remaining lease.
How much are flats at Block 420 Serangoon Ctrl by flat type?⌄
4-Room ≈ S$622k; 5-Room ≈ S$615k. Figures are median resale prices from HDB caveats.
How many years are left on the lease at Block 420 Serangoon Ctrl?⌄
Block 420 Serangoon Ctrl has approximately 63 years left on its 99-year lease (completed 1988). This figure is taken from the most recent transacted flat.
How many units are in Block 420 Serangoon Ctrl?⌄
Block 420 Serangoon Ctrl has 96 dwelling units across up to 13 storeys, mostly 4 room flats.
What is the nearest MRT to Block 420 Serangoon Ctrl?⌄
The nearest MRT/LRT station to Block 420 Serangoon Ctrl is Serangoon MRT, about 309 m away (~5 min walk).
Which primary schools are within 1 km of Block 420 Serangoon Ctrl?⌄
Yangzheng Primary School is within 1 km of Block 420 Serangoon Ctrl — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
Is Block 420 Serangoon Ctrl a good place to buy an HDB resale flat?⌄
Block 420 Serangoon Ctrl sits in Serangoon, in the Serangoon planning area. Whether it suits you depends on your budget, the flat type, the remaining lease (≈63 years) and proximity to MRT and schools — all of which are summarised on this page from HDB resale data.
