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. Across 180 resales on record, Executive flats have recently resold around S$908k (S$551 psf, 150 sqm). 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
- Flat model
- Maisonette
- 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 |
Live now: 3 flats listed for sale at this block (median asking S$1.15M) and 2 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 123 Serangoon Nth Ave 1 get?
Flats at Block 123 Serangoon Nth Ave 1 have recently sublet for a median of S$2,800/mo, an indicative gross rental yield of about 3.7% (from 6 recent rental contracts).
Median rent
S$2,800/mo
6 recent contracts
Gross rental yield
3.7%
indicative, gross
Annual rent
S$33,600
median × 12 months
| Flat type | Contracts | Median rent |
|---|---|---|
| Executive | 6 | S$2,800/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 Mar 2025. Source: HDB rental (subletting) data.
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 of the Maisonette model.
Unit stock by flat type, from the HDB property information dataset.
Where is Block 123 Serangoon Nth Ave 1?
Block 123 Serangoon Nth Ave 1 is an HDB block in Serangoon.
Block 123 Serangoon Nth Ave 1 is an HDB block located along Serangoon Nth Ave 1. The block is recorded as completed around 1984, with up to 13 storeys. It has an estimated 96 residential units based on the HDB property information dataset. Flat types in the block include executive units.
The address is Block 123 Serangoon Nth Ave 1, Singapore 550123. 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.
Nearby amenities include Hougang 1 for shopping, NTUC Fairprice Co-operative Ltd for groceries, Chomp Chomp Food Centre for food options, Parry Rd Pg for greenery and recreation, and The Serangoon Community Club for community facilities.
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.
Wondering whether it will hold its value? See do HDB flats actually make money? →
Eyeing Block 123 Serangoon Nth Ave 1? Ask what it's worth.
Recent transacted prices, what's nearby, and whether an asking price is fair.
PropKakiRecent sales at Block 123 Serangoon Nth Ave 1 land close to the town median — fair value, no big premium.
Frequently asked questions about Block 123 Serangoon Nth Ave 1
How much does a Executive flat at Block 123 Serangoon Nth Ave 1 cost?⌄
Executive flats at Block 123 Serangoon Nth Ave 1 have recently resold for a median of about S$908k (S$551 psf), from 180 resales on record (HDB caveats). The exact price depends on the flat type, floor and remaining lease.
Is Block 123 Serangoon Nth Ave 1 worth buying given its remaining lease?⌄
Block 123 Serangoon Nth Ave 1 has about 59 years left on its 99-year lease (completed 1984). Below ~60 years, CPF usage and the maximum loan start to taper with the buyer's age, so check financing before committing. The figure is taken from the most recent transacted flat.
What is the rental yield at Block 123 Serangoon Nth Ave 1?⌄
Gross rental yield at Block 123 Serangoon Nth Ave 1 is about 3.7%, based on a median subletting rent of about S$2,800/mo against a resale price of about S$908k. 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 123 Serangoon Nth Ave 1?⌄
For a flat at about S$908k on a 25-year HDB-style loan, you'd need roughly S$7,238/mo in household income, with repayments around S$3,409/mo after a S$227k downpayment. First-timer grants of up to S$80,000+ (not included) lower the cash needed.
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.