Block 123 Serangoon Nth Ave 1
123 Serangoon Nth Ave 1, Singapore 550123
Block 123 Serangoon Nth Ave 1 is an HDB block in Serangoon, completed in 1984, with 96 dwelling units. Executive flats have recently resold around S$908k (150 sqm), from 180 resales on record. The lease has approximately 59 years remaining.
What are the key facts about Block 123 Serangoon Nth Ave 1?
Block 123 Serangoon Nth Ave 1 is an HDB block in Serangoon, completed in 1984, with 96 dwelling units.
- Town
- Serangoon
- Planning area
- Serangoon
- Completed
- 1984
- Storeys
- 13
- Total units
- 96
- Market segment
- OCR
- Median resale
- S$908k
- Last transacted
- May 2025
- Remaining lease
- ≈ 59 years
What are resale prices at Block 123 Serangoon Nth Ave 1?
Executive flats have recently resold around S$908k (S$551 psf), from 180 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| Executive | 180 | S$908,000recent | 150 sqm | S$551 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 May 2025.
What has recently sold at Block 123 Serangoon Nth Ave 1?
Block 123 Serangoon Nth Ave 1 has 180 recorded resales; the most recent transacted at S$1,050,000 in May 2025 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| May 2025 | Executive | 10 TO 12 | 150 sqm | S$1,050,000 |
| Dec 2024 | Executive | 10 TO 12 | 150 sqm | S$980,000 |
| Nov 2024 | Executive | 04 TO 06 | 150 sqm | S$970,000 |
| Jul 2024 | Executive | 01 TO 03 | 150 sqm | S$855,000 |
| Jun 2024 | Executive | 07 TO 09 | 150 sqm | S$928,000 |
| Sept 2023 | Executive | 07 TO 09 | 150 sqm | S$880,000 |
| Sept 2023 | Executive | 01 TO 03 | 150 sqm | S$908,000 |
| Sept 2023 | Executive | 10 TO 12 | 155 sqm | S$920,000 |
| Feb 2023 | Executive | 07 TO 09 | 150 sqm | S$870,000 |
| Aug 2022 | Executive | 10 TO 12 | 150 sqm | S$940,000 |
| May 2022 | Executive | 07 TO 09 | 150 sqm | S$850,000 |
| May 2022 | Executive | 01 TO 03 | 150 sqm | S$750,000 |
What flat types are in Block 123 Serangoon Nth Ave 1?
Block 123 Serangoon Nth Ave 1 has 96 units, mostly Executive flats.
Unit stock by flat type, from the HDB property information dataset.
How far is Block 123 Serangoon Nth Ave 1 from MRT and schools?
5 schools are within 1 km, including 2 primary schools.
Schools nearby
Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
- Serangoon Garden Secondary SchoolSecondary schoolwithin 1 km454 m
- Bowen Secondary SchoolSecondary schoolwithin 1 km678 m
- Rosyth SchoolPrimary schoolwithin 1 km · P1 priority712 m
- Zhonghua Primary SchoolPrimary schoolwithin 1 km · P1 priority814 m
- Peicai Secondary SchoolSecondary schoolwithin 1 km876 m
- Xinmin Primary SchoolPrimary school1.3 km
- Xinmin Secondary SchoolSecondary school1.3 km
- Chij Our Lady Of Good CounselPrimary 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 123 Serangoon Nth Ave 1?
Buying a flat at Block 123 Serangoon Nth Ave 1 (~S$908k) needs about S$7,238/mo in income and S$3,409/mo in repayments, after S$21,840 stamp duty and a S$227k downpayment.
Illustrative, for a buyer at the recent median resale price (S$908k) — 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$21,840
BSD, tiered
Downpayment (25%)
S$227k
cash + CPF
Monthly instalment
S$3,409/mo
25y @ 3.5%
Income required
S$7,238/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 123 Serangoon Nth Ave 1
What is the resale price at Block 123 Serangoon Nth Ave 1?⌄
Executive flats at Block 123 Serangoon Nth Ave 1 have recently resold around S$908k (150 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 123 Serangoon Nth Ave 1?⌄
Block 123 Serangoon Nth Ave 1 has approximately 59 years left on its 99-year lease (completed 1984). This figure is taken from the most recent transacted flat.
How many units are in Block 123 Serangoon Nth Ave 1?⌄
Block 123 Serangoon Nth Ave 1 has 96 dwelling units across up to 13 storeys, mostly executive flats.
Which primary schools are within 1 km of Block 123 Serangoon Nth Ave 1?⌄
Rosyth School, Zhonghua Primary School are within 1 km of Block 123 Serangoon Nth Ave 1 — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
Is Block 123 Serangoon Nth Ave 1 a good place to buy an HDB resale flat?⌄
Block 123 Serangoon Nth Ave 1 sits in Serangoon, in the Serangoon planning area. Whether it suits you depends on your budget, the flat type, the remaining lease (≈59 years) and proximity to MRT and schools — all of which are summarised on this page from HDB resale data.
