homequant
HDB · Clementi · Blk 421 Clementi Ave 1

4-Room resale prices at Blk 421 Clementi Ave 1

Resales from Jan 2017 to Sep 2026 · single-unit sales only

What do 4-room flats at Blk 421 Clementi Ave 1 sell for?

Median price since Jan 2017
S$760,000S$715,000 – S$855,944

25th to 75th percentile · S$8,142 psm median (S$7,461 psm – S$9,350 psm) · from 79 recorded sales

79 recorded resales of 4-room flats at Blk 421 Clementi Ave 1 since Jan 2017 had a median price of S$760,000 (25th to 75th percentile S$715,000 to S$855,944) and a median S$8,142 psm (S$7,461 psm to S$9,350 psm). Latest recorded sale Sep 2026. Indicative, from recorded HDB resale prices.

Latest sale

S$996,888 · 96 sqm · S$10,384 psm · Sep 2026 · storeys 22 to 24

The latest sale, in Sep 2026, had 86 years of lease remaining, as HDB recorded it.

By year

YearSalesMedian price25th to 75th percentileMedian psm
20177S$720,000S$697,000 – S$725,000S$7,391 psm
201814S$710,000S$671,250 – S$736,250S$7,474 psm
20198S$687,500S$647,500 – S$707,500S$7,200 psm
20209S$735,000S$715,000 – S$742,000S$7,656 psm
20214S$775,000S$757,500 – S$799,722S$8,251 psm
20227S$828,000S$789,444 – S$840,000S$8,400 psm
20239S$822,888S$808,000 – S$845,000S$8,417 psm
20246S$901,500S$864,666 – S$930,666S$9,506 psm
20259S$952,488S$922,000 – S$965,000S$9,700 psm
20266S$980,444S$971,472 – S$993,916S$10,182 psm

Which storeys sold?

StoreysSales
Storeys 1 to 33
Storeys 4 to 69
Storeys 7 to 97
Storeys 10 to 128
Storeys 13 to 153
Storeys 16 to 188
Storeys 19 to 215
Storeys 22 to 2412
Storeys 25 to 275
Storeys 28 to 302
Storeys 31 to 334
Storeys 34 to 366
Storeys 37 to 397

How this is worked out

Every figure is HDB resales of this flat type in this block with a contract date since Jan 2017, leaving out sales flagged at ingest as unrepresentative (such as related-party transfers and statistical outliers). A page is published only with at least 5 such sales. Storeys are the ranges HDB records, not exact floors.