HDB's resale records give the floor area of every flat sold. Grouping the 345 three-room, four-room and five-room flats and 26 executive flats resold in Jurong West from April to June 2026 by flat type and lease period shows how size and price per square metre change with age.
| Flat type | Lease began | Sales | Median size | Median price | Median price per sq m |
|---|---|---|---|---|---|
| 3-room | Before 1980 | 20 | 65 sq m | $322,900 | $5,135 |
| 3-room | 1980 to 1989 | 33 | 73 sq m | $405,000 | $5,651 |
| 3-room | 2010 or later | 19 | 68 sq m | $492,500 | $7,243 |
| 4-room | 1980 to 1989 | 49 | 103 sq m | $488,900 | $4,816 |
| 4-room | 1990 to 1999 | 36 | 104 sq m | $525,000 | $4,962 |
| 4-room | 2000 to 2009 | 39 | 91 sq m | $535,000 | $5,920 |
| 4-room | 2010 or later | 28 | 93 sq m | $639,400 | $6,946 |
| 5-room | Before 1990 | 17 | 133 sq m | $650,000 | $4,745 |
| 5-room | 1990 to 1999 | 27 | 125 sq m | $635,000 | $5,000 |
| 5-room | 2000 to 2009 | 67 | 110 sq m | $620,000 | $5,608 |
| 5-room | 2010 or later | 10 | 113 sq m | $758,000 | $6,708 |
| Executive apartment | 1993 to 2002 | 16 | 132 sq m | $789,500 | $5,880 |
| Executive maisonette | 1985 to 1997 | 10 | 152 sq m | $796,000 | $5,184 |
Source: Resale flat prices (Housing & Development Board, via data.gov.sg), Apr–Jun 2026. Extracted 2 Oct 2026.
Calculated from HDB's transaction records. Size is the floor area HDB records for each flat. Medians are rounded to the nearest $100; the executive maisonette median size is 151.5 sq m.
4-room flats
The 49 flats with leases from the 1980s range from 84 to 123 square metres, with a median of 103, and 39 of them are 100 square metres or larger. The 36 flats from the 1990s have a median of 104 square metres. From 2000 the flats are smaller: every one of the 39 flats with leases from 2000 to 2009 is between 85 and 96 square metres, with a median of 91, and the 28 flats with leases from 2010 have a median of 93.
Prices run the other way. The median was about $488,900 for the 1980s flats and $535,000 for those from 2000 to 2009. So the median price per square metre rises from $4,816 for the 1980s flats and $4,962 for the 1990s flats to $5,920 for 2000 to 2009 and $6,946 for leases from 2010.
5-room flats
The 17 flats with leases from before 1990 range from 109 to 149 square metres, with a median of 133, and 12 of them are 130 square metres or larger. Five are two-storey maisonettes that HDB records under the 5-room type. The 27 flats from the 1990s have a median of 125 square metres. Of the 67 flats with leases from 2000 to 2009, 61 are between 110 and 112 square metres.
Median prices barely differ: $650,000 for the oldest group, $635,000 for the 1990s and $620,000 for 2000 to 2009. The median price per square metre is $4,745, $5,000 and $5,608. For the 10 flats with leases from 2010 it is $6,708, on a median size of 113 square metres.
Across flat types
The size groups overlap across flat types. A 4-room flat from the 1980s, at a median of 103 square metres, is 7 square metres smaller than a 5-room flat from 2000 to 2009, and sold for about $131,000 less at the median.
A 5-room flat from before 1990, at a median of 133 square metres, is about the size of the executive apartments sold in the quarter, which had a median of 132 square metres. The 5-room flats sold at a median of $650,000 and the executive apartments at $789,500. The executive apartments have newer leases, from 1993 to 2002.
3-room flats
3-room flats do not follow the pattern. Median sizes were 65 square metres for the 1970s flats, 73 for the 1980s and 68 for leases from 2012 onwards. The median price per square metre still rises with newer leases, from $5,135 to $5,651 to $7,243.
For the price ranges of every flat type, see the Jurong West resale report by flat type.