Block 21 Joo Seng Rd
21 Joo Seng Rd, Singapore 360021
Block 21 Joo Seng Rd is an HDB block in Toa Payoh, completed in 1987, with 58 dwelling units. Across 69 resales on record, Executive flats have recently resold around S$838k (S$533 psf, 146 sqm). The lease has approximately 61 years remaining.
What are the key facts about Block 21 Joo Seng Rd?
Block 21 Joo Seng Rd is an HDB block in Toa Payoh, completed in 1987, with 58 dwelling units.
- Town
- Toa Payoh
- Planning area
- Toa Payoh
- Completed
- 1987
- Storeys
- 11
- Total units
- 58
- Flat model
- Maisonette
- Market segment
- RCR
- Median resale
- S$838k
- Last transacted
- Jul 2026
- Remaining lease
- ≈ 61 years
What are resale prices at Block 21 Joo Seng Rd?
Executive flats have recently resold around S$838k (S$533 psf), from 69 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| Executive | 69 | S$838,000recent | 146 sqm | S$533 psf |
Live now: 12 flats listed for sale at this block (median asking S$1.25M) — 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 Jul 2026.
What rent and yield does Block 21 Joo Seng Rd get?
Flats at Block 21 Joo Seng Rd have recently sublet for a median of S$3,000/mo, an indicative gross rental yield of about 4.3% (from 17 recent rental contracts).
Median rent
S$3,000/mo
17 recent contracts
Gross rental yield
4.3%
indicative, gross
Annual rent
S$36,000
median × 12 months
| Flat type | Contracts | Median rent |
|---|---|---|
| Executive | 17 | S$3,000/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 Aug 2025. Source: HDB rental (subletting) data.
What has recently sold at Block 21 Joo Seng Rd?
Block 21 Joo Seng Rd has 69 recorded resales; the most recent transacted at S$980,000 in Jul 2026 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| Jul 2026 | Executive | 07 TO 09 | 146 sqm | S$980,000 |
| Mar 2025 | Executive | 01 TO 03 | 151 sqm | S$875,000 |
| Feb 2025 | Executive | 01 TO 03 | 146 sqm | S$930,000 |
| Jan 2025 | Executive | 10 TO 12 | 146 sqm | S$1,030,000 |
| Nov 2024 | Executive | 07 TO 09 | 152 sqm | S$1,200,000 |
| Nov 2023 | Executive | 04 TO 06 | 146 sqm | S$880,000 |
| Jul 2023 | Executive | 10 TO 12 | 146 sqm | S$838,000 |
| Apr 2022 | Executive | 04 TO 06 | 155 sqm | S$810,000 |
| Jan 2021 | Executive | 10 TO 12 | 146 sqm | S$690,000 |
| Dec 2020 | Executive | 04 TO 06 | 146 sqm | S$668,000 |
| Jun 2019 | Executive | 04 TO 06 | 146 sqm | S$645,000 |
| Jun 2019 | Executive | 07 TO 09 | 146 sqm | S$696,000 |
What flat types are in Block 21 Joo Seng Rd?
Block 21 Joo Seng Rd has 58 units, mostly Executive flats of the Maisonette model.
Unit stock by flat type, from the HDB property information dataset.
Where is Block 21 Joo Seng Rd?
Block 21 Joo Seng Rd is an HDB block in Toa Payoh.
Block 21 Joo Seng Rd is an HDB block located along Joo Seng Rd. The block is recorded as completed around 1987, with up to 11 storeys. It has an estimated 58 residential units based on the HDB property information dataset. Flat types in the block include executive units.
The address is Block 21 Joo Seng Rd, Singapore 360021. It is part of District 13, Macpherson / Braddell, the Toa Payoh planning area. The block falls within the Central Region and the RCR market segment.
The nearest rail connection is Mattar MRT, approximately 842m away, around 13 minutes on foot. Nearby amenities include The Woodleigh Mall for shopping, PRIME SUPERMARKET LIMITED? for groceries, Blks 79/79A Circuit Road for food options, and Macpherson Linear Pk for greenery and recreation.
How far is Block 21 Joo Seng Rd from MRT and schools?
The nearest MRT/LRT to Block 21 Joo Seng Rd is Mattar MRT, about 842 m away (~13 min walk). 5 schools are within 1 km, including 2 primary schools.
Getting around
- Mattar MRT842 m · ~13 min
- Tai Seng MRT878 m · ~14 min
- Bartley MRT951 m · ~15 min
Schools nearby
Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
- Cedar Primary SchoolPrimary schoolwithin 1 km · P1 priority580 m
- Bartley Secondary SchoolSecondary schoolwithin 1 km711 m
- Cedar Girls' Secondary SchoolSecondary schoolwithin 1 km740 m
- Canossa Catholic Primary SchoolPrimary schoolwithin 1 km · P1 priority834 m
- Maris Stella High SchoolMixed-level schoolwithin 1 km881 m
- St. Gabriel's Secondary SchoolSecondary school1.5 km
- St Andrew's School (Secondary)Secondary school1.6 km
- St Andrew's School (Junior)Primary school1.7 km
Shops, food & parks
Straight-line distances from the block. Source: PropKaki amenities data.
What does it cost to buy a flat at Block 21 Joo Seng Rd?
Buying a flat at Block 21 Joo Seng Rd (~S$838k) needs about S$6,680/mo in income and S$3,146/mo in repayments, after S$19,740 stamp duty and a S$210k downpayment.
Illustrative, for a buyer at the recent median resale price (S$838k) — 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$19,740
BSD, tiered
Downpayment (25%)
S$210k
cash + CPF
Monthly instalment
S$3,146/mo
25y @ 3.5%
Income required
S$6,680/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 21 Joo Seng Rd? Ask what it's worth.
Recent transacted prices, what's nearby, and whether an asking price is fair.
PropKakiRecent sales at Block 21 Joo Seng Rd land close to the town median — fair value, no big premium.
Frequently asked questions about Block 21 Joo Seng Rd
How much does a Executive flat at Block 21 Joo Seng Rd cost?⌄
Executive flats at Block 21 Joo Seng Rd have recently resold for a median of about S$838k (S$533 psf), from 69 resales on record (HDB caveats). The exact price depends on the flat type, floor and remaining lease.
Is Block 21 Joo Seng Rd worth buying given its remaining lease?⌄
Block 21 Joo Seng Rd has about 61 years left on its 99-year lease (completed 1987). 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 21 Joo Seng Rd?⌄
Gross rental yield at Block 21 Joo Seng Rd is about 4.3%, based on a median subletting rent of about S$3,000/mo against a resale price of about S$838k. 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 21 Joo Seng Rd?⌄
For a flat at about S$838k on a 25-year HDB-style loan, you'd need roughly S$6,680/mo in household income, with repayments around S$3,146/mo after a S$210k downpayment. First-timer grants of up to S$80,000+ (not included) lower the cash needed.
What is the nearest MRT to Block 21 Joo Seng Rd?⌄
The nearest MRT/LRT station to Block 21 Joo Seng Rd is Mattar MRT, about 842 m away (~13 min walk).
Which primary schools are within 1 km of Block 21 Joo Seng Rd?⌄
Cedar Primary School, Canossa Catholic Primary School are within 1 km of Block 21 Joo Seng Rd — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.