← Buy-Timing Dashboard
Worked example · public HDB data · CPE framework
Timing the sale of a five-room flat, BLK 184 Jelebu Rd
Bukit Panjang · floors 10 to 15 · lease from 2003 (about 76 years left) · Snapshot built 19 Oct 2026 · HDB resales to Oct 2026 (last full month Sep 2026) · HDB index to 2026Q2
Block premium over the town
+23%
same type, size, floor and age; five-room only +23%
Model range, September 2026
S$811,000 to S$943,000
centre S$875,000: a 112 sqm five-room, about the 12th floor
HDB Resale Price Index
202.8
-0.4% from its 2025Q3 peak, -0.0% on the year
Bukit Panjang index
-1.3%
from its Sep 2025 peak; -1.3% on the year

The block and its peers

29 five-room resales in the block since March 2012, of which 8 on floors 10 to 15. Peers are other Bukit Panjang blocks with a similar lease start (2000 to 2006): 422 five-room sales on floors 10 to 15 in 52 blocks.

Five-room sales on floors 10 to 15

MonthFloorsArea (sqm)PricePer sq ft
2025-0213 To 15113S$848,000S$697
2021-0513 To 15110S$700,000S$591
2020-1210 To 12112S$715,000S$593
2020-0910 To 12113S$675,000S$555
2017-0910 To 12110S$630,000S$532
2017-0510 To 12112S$640,000S$531
2015-0613 To 15110S$560,000S$473
2013-0113 To 15113S$655,000S$539

Latest five-room sales, any floor

MonthFloorsArea (sqm)PricePer sq ft
2026-0725 To 27113S$960,000S$789
2026-0416 To 18113S$965,000S$793
2025-1216 To 18112S$945,000S$784
2025-0213 To 15113S$848,000S$697
2025-0119 To 21112S$918,000S$761
2024-0819 To 21113S$890,000S$732

The market now

HDB Resale Price Index since 1990 (shaded: falls of more than 5%)

HDB index and Bukit Panjang (quality adjusted), 2012 Q1 = 100

The HDB index is at 202.8, -0.4% from its peak of 203.7 (2025Q3) and -0.0% on the year: four quarters of moving sideways. Bukit Panjang, adjusted for flat type, size, floor and age, is at 152.7 against a peak of 154.7 (Sep 2025), -1.3% and -1.3% on the year.

Does any condition tell you when to sell?

A causal walk-forward on the HDB index, with mechanisms written down first: 474 admitted condition-years, out-of-sample lift 0.82 overall and 0.28 since 2017 (1.0 is no better than the base rate). Own momentum scored 5.1 but on only 63 entries, 3 of them since 2017. Rates, rent growth and vacancy did better before 2017 and not since. Nothing meets the support rule used on the dashboard (a lift of at least 1.4 overall and since 2017, on at least 100 entries).

Base rates and past falls

HDB index after any quarter

WindowLower after 4 quartersMedian, 4 quarters10th to 90th percentileLower after 8 quartersMedian, 8 quarters
since 199032%+4.9%-5.6% to +18.5%33%+9.3%
since 200433%+4.9%-3.5% to +12.0%34%+12.5%
last 10 years28%+5.2%-1.2% to +11.1%22%+13.4%

Falls of more than 5% from a peak

PeakTroughFallQuarters downQuarters to recover
1996Q42002Q1-30%2126
2013Q22019Q2-12%249

After earlier flat spells

The index has had 23 quarters in 7 spells where the four-quarter change stayed within 1.5%, as now. The next four quarters had a median of +0.1% and were lower 48% of the time; individual spells ran from about −10% to +10%. The quarters overlap, so this is 7 spells, not 23 independent observations.

SpellQuartersNext 4 quarters, from the first quarter
1991Q3 to 1991Q31+10.5%
2000Q3 to 2000Q31-9.5%
2002Q3 to 2002Q42+6.1%
2006Q2 to 2006Q32+5.0%
2013Q4 to 2013Q41-6.2%
2016Q1 to 2017Q48-0.6%
2018Q3 to 2020Q28-0.5%

One unexplained pattern: September

In Bukit Panjang the quality-adjusted index rose in 14 of 15 Septembers, by +1.18% on average against +0.16% in other months (t = 4.7); September 2026 was +3.0%. It does not show up elsewhere: other large towns average +0.15% to +0.59%, and all towns pooled +0.32% (t = 1.6). So it is a fact about one town’s past with no explanation I can test, and it is not used as a forecast.

What this does and does not say