HDBOCRTampines

Block 230J Tampines St 21

230J Tampines St 21, Singapore 523230

Reviewed by Nathan TangUpdated 10 August 2026Data through Apr 2026 (HDB)
Quick Summary

Block 230J Tampines St 21 is an HDB block in Tampines, completed in 1993, with 55 dwelling units. Across 58 resales on record, Executive flats have recently resold around S$680k (S$420 psf, 150 sqm). The lease has approximately 66 years remaining.

1

What are the key facts about Block 230J Tampines St 21?

Key Takeaway

Block 230J Tampines St 21 is an HDB block in Tampines, completed in 1993, with 55 dwelling units.

Town
Tampines
Planning area
Tampines
Completed
1993
Storeys
12
Total units
55
Flat model
Apartment
Market segment
OCR
Median resale
S$680k
Last transacted
Apr 2026
Remaining lease
≈ 66 years
2

What are resale prices at Block 230J Tampines St 21?

Key Takeaway

Executive flats have recently resold around S$680k (S$420 psf), from 58 resales on record (HDB caveat data).

Flat typeResalesMedian priceSizePSF
Executive58S$680,000recent150 sqmS$420 psf

Live now: 6 flats listed for sale at this block (median asking S$990k) 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 Apr 2026.

3

What rent and yield does Block 230J Tampines St 21 get?

Key Takeaway

Flats at Block 230J Tampines St 21 have recently sublet for a median of S$3,800/mo, an indicative gross rental yield of about 6.7% (from 11 recent rental contracts).

Median rent

S$3,800/mo

11 recent contracts

Gross rental yield

6.7%

indicative, gross

Annual rent

S$45,600

median × 12 months

Flat typeContractsMedian rent
Executive11S$3,800/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 Apr 2025. Source: HDB rental (subletting) data.

4

What has recently sold at Block 230J Tampines St 21?

Key Takeaway

Block 230J Tampines St 21 has 58 recorded resales; the most recent transacted at S$910,000 in Apr 2026 (HDB caveat data).

DateFlat typeStoreySizePrice
Apr 2026Executive01 TO 03151 sqmS$910,000
Jan 2022Executive07 TO 09155 sqmS$740,000
Jan 2022Executive04 TO 06149 sqmS$740,000
Sept 2021Executive07 TO 09150 sqmS$730,000
Aug 2021Executive01 TO 03150 sqmS$658,000
Jul 2021Executive04 TO 06155 sqmS$700,000
Dec 2020Executive04 TO 06149 sqmS$680,000
Sept 2020Executive10 TO 12150 sqmS$683,000
Mar 2019Executive07 TO 09155 sqmS$650,000
Sept 2017Executive10 TO 12149 sqmS$645,000
Aug 2017Executive04 TO 06155 sqmS$635,000
May 2017Executive01 TO 03149 sqmS$545,000
5

What flat types are in Block 230J Tampines St 21?

Key Takeaway

Block 230J Tampines St 21 has 55 units, mostly Executive flats of the Apartment model.

Unit stock by flat type, from the HDB property information dataset.

Executive: 55
6

Where is Block 230J Tampines St 21?

Key Takeaway

Block 230J Tampines St 21 is an HDB block in Tampines.

Block 230J Tampines St 21 is an HDB block located along Tampines St 21. The block is recorded as completed around 1993, with up to 12 storeys. It has an estimated 55 residential units based on the HDB property information dataset. Flat types in the block include executive units.

The address is Block 230J Tampines St 21, Singapore 523230. It is part of District 18, Tampines / Pasir Ris, the Tampines planning area. The block falls within the East Region and the OCR market segment.

The nearest rail connection is Tampines East MRT, approximately 553m away, around 9 minutes on foot. Nearby amenities include Tampines 1 for shopping, SHENG SIONG SUPERMARKET PTE LTD for groceries, Sun Plaza Pk for greenery and recreation, Tampines Polyclinic for polyclinic services, and Tampines North Community Club for community facilities.

7

How far is Block 230J Tampines St 21 from MRT and schools?

Key Takeaway

The nearest MRT/LRT to Block 230J Tampines St 21 is Tampines East MRT, about 553 m away (~9 min walk). 10 schools are within 1 km, including 5 primary schools.

Getting around

Schools nearby

Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.

  • Gongshang Primary SchoolPrimary schoolwithin 1 km · P1 priority131 m
  • Pasir Ris Secondary SchoolSecondary schoolwithin 1 km232 m
  • Tampines North Primary SchoolPrimary schoolwithin 1 km · P1 priority487 m
  • Yumin Primary SchoolPrimary schoolwithin 1 km · P1 priority552 m
  • Chongzheng Primary SchoolPrimary schoolwithin 1 km · P1 priority640 m
  • Temasek Junior CollegeMixed-level schoolwithin 1 km735 m
  • Ngee Ann Secondary SchoolSecondary schoolwithin 1 km810 m
  • Dunman Secondary SchoolSecondary schoolwithin 1 km881 m

Shops, food & parks

Mall: Tampines 1 · 554 mSupermarket: Sheng Siong Supermarket Pte Ltd · 415 mPark: Sun Plaza Pk · 740 m

Straight-line distances from the block. Source: PropKaki amenities data.

8

What does it cost to buy a flat at Block 230J Tampines St 21?

Key Takeaway

Buying a flat at Block 230J Tampines St 21 (~S$680k) needs about S$5,421/mo in income and S$2,553/mo in repayments, after S$15,000 stamp duty and a S$170k downpayment.

Illustrative, for a buyer at the recent median resale price (S$680k) — 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$15,000

BSD, tiered

Downpayment (25%)

S$170k

cash + CPF

Monthly instalment

S$2,553/mo

25y @ 3.5%

Income required

S$5,421/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? →

Keep going in the PropKaki app

Eyeing Block 230J Tampines St 21? Ask what it's worth.

Recent transacted prices, what's nearby, and whether an asking price is fair.

PropKaki
What have flats at Block 230J Tampines St 21 sold for recently?

Recent sales at Block 230J Tampines St 21 land close to the town median — fair value, no big premium.

Ask anything about Singapore property…
9

Frequently asked questions about Block 230J Tampines St 21

How much does a Executive flat at Block 230J Tampines St 21 cost?

Executive flats at Block 230J Tampines St 21 have recently resold for a median of about S$680k (S$420 psf), from 58 resales on record (HDB caveats). The exact price depends on the flat type, floor and remaining lease.

Is Block 230J Tampines St 21 worth buying given its remaining lease?

Block 230J Tampines St 21 has about 66 years left on its 99-year lease (completed 1993). 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 230J Tampines St 21?

Gross rental yield at Block 230J Tampines St 21 is about 6.7%, based on a median subletting rent of about S$3,800/mo against a resale price of about S$680k. 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 230J Tampines St 21?

For a flat at about S$680k on a 25-year HDB-style loan, you'd need roughly S$5,421/mo in household income, with repayments around S$2,553/mo after a S$170k downpayment. First-timer grants of up to S$80,000+ (not included) lower the cash needed.

What is the nearest MRT to Block 230J Tampines St 21?

The nearest MRT/LRT station to Block 230J Tampines St 21 is Tampines East MRT, about 553 m away (~9 min walk).

Which primary schools are within 1 km of Block 230J Tampines St 21?

Gongshang Primary School, Tampines North Primary School, Yumin Primary School, Chongzheng Primary School are within 1 km of Block 230J Tampines St 21 — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.

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