Blk 421 Serangoon Ctrl HDB Resale | Price, Transactions & Rental Data
HDB ResaleSERANGOON

Blk 421 Serangoon Ctrl

Singapore 550421
Median PSF
$293
Transactions
93
Lease Left
62 years
1 month
Flat Types
4-Room
5-Room
Data last verified 6 Sep 2026 · source: HDB / DataGov
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Block details
TownSERANGOON
Block421
StreetSerangoon Ctrl
Flat Model(s)Improved, Model A, New Generation
Floor Range01 TO 15
Lease Commenced1989
Remaining Lease62 years 01 month
Unit mix
4-Room $178,000–$865,000
68 txn · 1,012–1,216 sqft · Floor 01 TO 15 · $264 psf
5-Room $270,000–$875,000
25 txn · 1,302 sqft · Floor 01 TO 15 · $319 psf
Nearby carpark
Blk 415-420 Lorong Lew Lian 75 m
Surface · 178 lots
Blk 409/414 Serangoon Central/Avenue 1 121 m
Surface · 180 lots
Blk 421/427 Serangoon Central/Avenue 1 124 m
Surface · 380 lots
Location data pending.
Transactions
Price trend by room type (quarterly median PSF)
Solid lines = this block by room type · dashed = SERANGOON town median
4-Room
$765
+19.9% vs town · town $638 (2026 Q2)
5-Room
$628
-3.2% vs town · town $649 (2025 Q1)
Rental trend by room type (quarterly median rent)
Rental data available from Jan 2021 onward
4-Room
$1,000/mo
-68.8% vs town · town $3,200 (2026 Q2)
5-Room
$3,950/mo
+23.4% vs town · town $3,200 (2026 Q2)
Estimated price by size
Low / median / high, from last 12 months of transactions
No recent 3-room transactions on this block — see nearby blocks below.
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Look at the estate
Other blocks on Serangoon Ctrl, grouped by construction batch, last 12 months
1986 batch (est. 59 years left)
Blk 207
$482,000–$520,000
Median $482,000
2 txn
1985 batch (est. 58 years left)
Blk 201
$515,000
Median $515,000
1 txn
Blk 204
$505,000–$560,000
Median $515,000
3 txn
Blk 206
$475,000–$563,888
Median $475,000
2 txn
Blk 209
$550,000
Median $550,000
1 txn
Blk 210
$528,000–$540,000
Median $528,000
2 txn
Estimated price by size
Low / median / high, from last 12 months of transactions
1,130 sqft $865,000
1 txn · Median $865,000 · $765 psf
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Look at the estate
Other blocks on Serangoon Ctrl, grouped by construction batch, last 12 months
1989 batch (est. 62 years left)
Blk 411
$765,000
Median $765,000
1 txn
Blk 414
$965,000
Median $965,000
1 txn
Blk 415
$835,000
Median $835,000
1 txn
Blk 416
$868,000
Median $868,000
1 txn
Blk 419
$820,000–$822,000
Median $820,000
2 txn
Blk 420
$858,888
Median $858,888
1 txn
Blk 422
$919,000–$975,000
Median $919,000
2 txn
1986 batch (est. 59 years left)
Blk 205
$570,000
Median $570,000
1 txn
1985 batch (est. 58 years left)
Blk 204
$580,000–$702,000
Median $580,000
2 txn
Blk 206
$661,888–$700,000
Median $661,888
2 txn
Blk 208
$735,000
Median $735,000
1 txn
Estimated price by size
Low / median / high, from last 12 months of transactions
No recent 5-room transactions on this block — see nearby blocks below.
Want an estimate for your floor? Get a Valuation →
Look at the estate
Other blocks on Serangoon Ctrl, grouped by construction batch, last 12 months
1989 batch (est. 62 years left)
Blk 409
$1,010,000
Median $1,010,000
1 txn
Blk 412
$845,000–$985,000
Median $845,000
2 txn
Blk 420
$930,000–$1,030,000
Median $980,000
3 txn
Blk 422
$925,000–$1,050,000
Median $980,000
3 txn
1986 batch (est. 59 years left)
Blk 205
$925,000
Median $925,000
2 txn
1985 batch (est. 58 years left)
Blk 208
$938,000
Median $938,000
1 txn
Estimated price by size
Low / median / high, from last 12 months of transactions
No recent executive transactions on this block — see nearby blocks below.
Want an estimate for your floor? Get a Valuation →
Look at the estate
Other blocks on Serangoon Ctrl, grouped by construction batch, last 12 months
1989 batch (est. 62 years left)
Blk 424
$1,040,000–$1,230,000
Median $1,180,000
3 txn