HDB block scorecard · rubric v0.3
Blk 480 Sembawang Dr
HDB block scorecard · Sembawang · 20 resales 2017-07–2026-06
Carried by price vs town peers (5.0/5); capped by location & connectivity (2.0/5).
Best for: Buyers wanting town entry below peer pricing with lease headroom.
the headline rubric: price, trend, liquidity, location, lease
4th pctile in Sembawang · 9th pctile of all 8842 blocks islandwide
+5.9%/yr realized · 8 resales/36mo · ~73yr lease left
The rubric
How we rate →Price vs Town Peers
20%computed5.0/5486
$486 median psf = 4th pctile of 246 rated Sembawang blocks (cheaper=better)
Realized Price Trend
20%computed3.0/5+5.9%/yr
block trend +5.9%/yr = 43th pctile of 8622 blocks (first-12mo vs last-12mo, annualized)
Transaction Liquidity
15%computed3.0/58 resales / 36mo
3yr resale volume; block med ~7 — single-block markets are thin
Location & Connectivity
15%computed2.0/510.3min walk to Sembawang
10.3min to SEMBAWANG MRT STATION Exit C (straight-line x1.35 detour @80m/min), 7 bus stops <=400m
Lease Runway
15%computed4.0/5~73yr left
~73yr remaining (99yr grant); block universe med ~66yr; CPF/loan limits tighten as runway shrinks
Flat Mix
5%partial3.5/5100% 4RM+, avg 103sqm
share of 4-room-and-larger resales (family stock holds demand) — proxy
Sentiment Signal
10%manual · awaiting data3.0/5Awaiting data — neutral placeholder. manual aggregated overlay (Tier3 fragile layer)
Strongest: Price vs Town Peers · Weakest: Location & Connectivity. Each category is scored 0–5 against public anchors, multiplied by its weight and scaled to 100.
Key facts
- Median resale psf
- $486 psf
- Resales (36 mo)
- 8
- Town
- Sembawang
- Remaining lease
- ~73yr
- Avg flat size
- 103 sqm
- Nearest MRT
- Sembawang · 10.3 min walk
- Data through
- Jun 2026
Data coverage
88%88% of this rating’s weight is measured from data. The rest is a clearly-labelled placeholder or estimate — never silently blended in.
- computed
- — fully measured from source data (full coverage credit)
- partial
- — real but proxy signal (half credit)
- inferred
- — estimate, dampened toward neutral (no credit)
- manual
- — neutral 3.0 placeholder awaiting data (no credit)
Map
Price history
median $psf by monthMedian resale $psf per month for this single block, from HDB resale registrations. A block trades thinly, so the series is sparse — the line breaks across months with no recorded resale rather than bridging the gap.
- median resale $psf
- transactions / month
- trend extrapolation — not a forecast