homequant
HDB · 521243

Blk 243 Tampines St 21

Project page · 99-year lease from 1984

Indicative value range
S$497,501 – S$525,706
Indicative mid S$515,000 · S$6,959 psm

Based on 3 sales in this block, last 12 months. Search did not need to widen. See the comparable sales.

No storey entered, so sales were not adjusted for height

Comparable sales

Each price per area is scaled to Q2 2026 by the published index for the quarter it sold in.

SoldWhereFloorSizePricePer sqmIndex ×Adjusted
Sept 2026Blk 24310 TO 1274 sqmS$515,000S$6,959 psm×1.000S$6,959 psm
Sept 2026Blk 24301 TO 0374 sqmS$480,000S$6,486 psm×1.000S$6,486 psm
Feb 2026Blk 24307 TO 0974 sqmS$538,000S$7,270 psm×0.997S$7,249 psm

How accurate is this estimate for Tampines St 21?

We re-ran the estimate as of Q4 2025 on what was known at the time, then compared it with the 137 sales in Tampines St 21 since.

Median error
5.2%

Half the estimates came closer than this to what the home actually fetched, half missed by more.

What the rent says

What this flat earns against what it costs, set beside what homes like it earn.

6.76% gross yield

S$34,800 of rent a year against the estimate above · 0.33 points below flats like it

Homes like this rent for about S$2,900 a month, the middle of 149 approvals in the last year.

In Tampines, flats of this type with 50 to 59 years of lease left yield 7.09%, from 26 blocks.

A yield above the mark means the flat rents well for what it costs, which can point to a keen rental patch or a price the sales alone have not caught up with. Below it, buyers are paying for something a tenant will not, such as the address itself.

Recent rental approvals used

ApprovedBlockFlatRent a month
Sept 20262423 ROOMS$3,225
Sept 20262593 ROOMS$3,100
Sept 20262403 ROOMS$3,100
Sept 20262403 ROOMS$3,000
Sept 20262693 ROOMS$3,000
Sept 20262413 ROOMS$3,000
Sept 20262673 ROOMS$3,000
Sept 20262503 ROOMS$2,900

median of 149 HDB rental approvals for 3 ROOM on Tampines St 21 since 2025-10.

Buying or selling at S$515,000?

Buying: Stamp duty on S$515,000 · Cash and CPF needed on S$515,000 · How much can I borrow · Monthly repayment on a 75% loan · Property tax on this rent.

Selling: Net proceeds from selling on S$515,000.

Each opens with this figure filled in; change anything there.

Primary schools near 243 Tampines St 21

Measured from each school's land to this address's own point, the way MOE bands P1 priority. MOE measures to the building's outline, so near 1 km or 2 km check OneMap's School Query.

Within about 1 km

1 to 2 km

Past transactions

Recorded sales
DateDetailAreaPricePer area
Sept 2026
Blk 243 · 4 ROOM · 01 TO 03 · Model A · 57 years left
104 sqmS$645,000S$6,202 psm
Sept 2026
Blk 243 · 3 ROOM · 01 TO 03 · Model A · 57 years left
74 sqmS$480,000S$6,486 psm
Sept 2026
Blk 243 · 3 ROOM · 10 TO 12 · Model A · 57 years left
74 sqmS$515,000S$6,959 psm
Jul 2026
Blk 243 · 4 ROOM · 04 TO 06 · Model A · 57 years left
104 sqmS$653,000S$6,279 psm
Feb 2026
Blk 243 · 3 ROOM · 07 TO 09 · Model A · 57 years left
74 sqmS$538,000S$7,270 psm
Jul 2025
Blk 243 · 3 ROOM · 04 TO 06 · Model A · 58 years left
74 sqmS$500,000S$6,757 psm
Apr 2024
Blk 243 · 3 ROOM · 10 TO 12 · Model A · 59 years left
74 sqmS$488,000S$6,595 psm
Jan 2024
Blk 243 · 3 ROOM · 04 TO 06 · Model A · 60 years left
74 sqmS$489,000S$6,608 psm
Jan 2024
Blk 243 · 3 ROOM · 07 TO 09 · Model A · 60 years left
74 sqmS$465,000S$6,284 psm
May 2023
Blk 243 · 3 ROOM · 10 TO 12 · Model A · 60 years left
74 sqmS$450,000S$6,081 psm
Mar 2023
Blk 243 · 4 ROOM · 07 TO 09 · Model A · 60 years left
108 sqmS$605,000S$5,602 psm
Mar 2023
Blk 243 · 3 ROOM · 10 TO 12 · Model A · 60 years left
74 sqmS$443,000S$5,986 psm
Jan 2023
Blk 243 · 3 ROOM · 04 TO 06 · Model A · 61 years left
74 sqmS$435,000S$5,878 psm
Apr 2022
Blk 243 · 4 ROOM · 01 TO 03 · Model A · 61 years left
105 sqmS$538,000S$5,124 psm
Mar 2022
Blk 243 · 4 ROOM · 04 TO 06 · Model A · 61 years left
104 sqmS$538,888S$5,182 psm
See more

Showing 15 of 65.

Sale prices as filed in caveats.

Where the lease takes this

About 56 years of the 99-year lease remain. Every figure below lets the lease run down on the decay measured from HDB resales in this market, then applies the price path in that column. The paths are scenarios to choose between, not forecasts.

From nowLease leftPrices flatPrices 2% a yearThis market's record, 3.64% a yearmeasuredPrices 4% a year
5 years51 yearsS$491,617S$542,785S$587,846S$598,127
10 years46 yearsS$466,853S$569,091S$667,505S$691,057
20 years36 yearsS$410,414S$609,853S$839,016S$899,267

On a flat market the lease alone costs 20% over 20 years. Prices would need to rise about 1.14% a year to cancel that out.

The measured column repeats what this market did between Q1 2015 and Q2 2026, which was 3.64% a year. Past growth is not a promise of future growth.

Horizons we have not measured are left out rather than guessed at, so a short lease shows fewer rows.

Indicative estimate from comparable caveats. Not a formal valuation.