Block 423 Serangoon Ctrl
423 Serangoon Ctrl, Singapore 550423
Block 423 Serangoon Ctrl is an HDB block in Serangoon, completed in 1988, with 60 dwelling units. Executive flats have recently resold around S$950k (146 sqm), from 67 resales on record. The lease has approximately 64 years remaining.
What are the key facts about Block 423 Serangoon Ctrl?
Block 423 Serangoon Ctrl is an HDB block in Serangoon, completed in 1988, with 60 dwelling units.
- Town
- Serangoon
- Planning area
- Serangoon
- Completed
- 1988
- Storeys
- 13
- Total units
- 60
- Market segment
- OCR
- Median resale
- S$950k
- Last transacted
- Nov 2023
- Remaining lease
- ≈ 64 years
What are resale prices at Block 423 Serangoon Ctrl?
Executive flats have recently resold around S$950k (S$605 psf), from 67 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| Executive | 67 | S$950,000recent | 146 sqm | S$605 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 Nov 2023.
What has recently sold at Block 423 Serangoon Ctrl?
Block 423 Serangoon Ctrl has 67 recorded resales; the most recent transacted at S$1,100,000 in Nov 2023 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| Nov 2023 | Executive | 04 TO 06 | 146 sqm | S$1,100,000 |
| Nov 2023 | Executive | 04 TO 06 | 146 sqm | S$988,000 |
| Oct 2023 | Executive | 04 TO 06 | 146 sqm | S$930,000 |
| Sept 2023 | Executive | 07 TO 09 | 146 sqm | S$1,110,000 |
| Jul 2022 | Executive | 01 TO 03 | 146 sqm | S$970,000 |
| Apr 2022 | Executive | 01 TO 03 | 146 sqm | S$925,000 |
| Mar 2022 | Executive | 10 TO 12 | 146 sqm | S$965,000 |
| Sept 2021 | Executive | 04 TO 06 | 146 sqm | S$950,000 |
| Apr 2021 | Executive | 01 TO 03 | 149 sqm | S$890,000 |
| Aug 2020 | Executive | 07 TO 09 | 146 sqm | S$960,000 |
| Dec 2019 | Executive | 10 TO 12 | 146 sqm | S$910,000 |
| Nov 2018 | Executive | 10 TO 12 | 146 sqm | S$905,000 |
What flat types are in Block 423 Serangoon Ctrl?
Block 423 Serangoon Ctrl has 60 units, mostly Executive flats.
Unit stock by flat type, from the HDB property information dataset.
How far is Block 423 Serangoon Ctrl from MRT and schools?
The nearest MRT/LRT to Block 423 Serangoon Ctrl is Serangoon MRT, about 394 m away (~6 min walk). 4 schools are within 1 km, including 1 primary school.
Getting around
- Serangoon MRT394 m · ~6 min
- Bartley MRT839 m · ~13 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 km230 m
- Zhonghua Secondary SchoolSecondary schoolwithin 1 km685 m
- Yangzheng Primary SchoolPrimary schoolwithin 1 km · P1 priority778 m
- Maris Stella High SchoolMixed-level schoolwithin 1 km828 m
- Nanyang Junior CollegeJunior college1.0 km
- Paya Lebar Methodist Girls' School (Primary)Primary school1.0 km
- Paya Lebar Methodist Girls' School (Secondary)Secondary school1.1 km
- Bartley Secondary SchoolSecondary school1.2 km
Shops, food & parks
Straight-line distances from the block. Source: PropKaki amenities data.
What does it cost to buy a flat at Block 423 Serangoon Ctrl?
Buying a flat at Block 423 Serangoon Ctrl (~S$950k) needs about S$7,573/mo in income and S$3,567/mo in repayments, after S$23,100 stamp duty and a S$238k downpayment.
Illustrative, for a buyer at the recent median resale price (S$950k) — 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$23,100
BSD, tiered
Downpayment (25%)
S$238k
cash + CPF
Monthly instalment
S$3,567/mo
25y @ 3.5%
Income required
S$7,573/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 423 Serangoon Ctrl
What is the resale price at Block 423 Serangoon Ctrl?⌄
Executive flats at Block 423 Serangoon Ctrl have recently resold around S$950k (146 sqm), based on HDB resale caveats. Resale prices vary by flat type, floor and remaining lease.
How many years are left on the lease at Block 423 Serangoon Ctrl?⌄
Block 423 Serangoon Ctrl has approximately 64 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 423 Serangoon Ctrl?⌄
Block 423 Serangoon Ctrl has 60 dwelling units across up to 13 storeys, mostly executive flats.
What is the nearest MRT to Block 423 Serangoon Ctrl?⌄
The nearest MRT/LRT station to Block 423 Serangoon Ctrl is Serangoon MRT, about 394 m away (~6 min walk).
Which primary schools are within 1 km of Block 423 Serangoon Ctrl?⌄
Yangzheng Primary School is within 1 km of Block 423 Serangoon Ctrl — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
Is Block 423 Serangoon Ctrl a good place to buy an HDB resale flat?⌄
Block 423 Serangoon Ctrl sits in Serangoon, in the Serangoon planning area. Whether it suits you depends on your budget, the flat type, the remaining lease (≈64 years) and proximity to MRT and schools — all of which are summarised on this page from HDB resale data.
