The block
- Completed
- 1990
- Lease
- From 1992, ends 2091. About 64 years left
- Storeys
- 12
- Flats
- 88: 66 4-room, 22 5-room
- Postal code
- Singapore 680421
- Nearest MRT
- South View LRT, about 8 min walk (510 m)
- Town
- Choa Chu Kang
Resale prices at Blk 421 Choa Chu Kang Avenue 4
| Flat type | 2023 | 2024 | 2025 | 2026 | Choa Chu Kang median |
|---|---|---|---|---|---|
| 4-room | S$510,000 | S$525,000 | S$574,888 | S$550,000 | S$555,000 |
| 5-room | - | S$620,000 | - | - | S$670,000 |
Median price by year of registration.
What is my flat at Blk 421 Choa Chu Kang Avenue 4 worth?
Pick your flat type and floor for an instant range based on this block's own resales.
A guide only. Condition, facing, corner units and renovation can move the price 5 to 10% either way.
Latest sales
| Month | Type | Storey | Size | Price |
|---|---|---|---|---|
| Aug 2026 | 4-room Model A | 10 to 12 | 104 sqm 1,119 sqft | S$555,000 S$496 psf |
| Jul 2026 | 4-room Model A | 04 to 06 | 104 sqm 1,119 sqft | S$545,000 S$487 psf |
| May 2025 | 4-room Model A | 07 to 09 | 104 sqm 1,119 sqft | S$574,888 S$514 psf |
| Jul 2024 | 4-room Model A | 01 to 03 | 104 sqm 1,119 sqft | S$525,000 S$469 psf |
| Mar 2024 | 4-room Model A | 10 to 12 | 104 sqm 1,119 sqft | S$532,000 S$475 psf |
| Mar 2024 | 5-room Model A | 10 to 12 | 132 sqm 1,421 sqft | S$620,000 S$436 psf |
| Jan 2024 | 4-room Model A | 07 to 09 | 104 sqm 1,119 sqft | S$504,888 S$451 psf |
| Dec 2023 | 4-room Model A | 10 to 12 | 104 sqm 1,119 sqft | S$510,000 S$456 psf |
Rent at Blk 421 Choa Chu Kang Avenue 4
At these figures a 4-room flat here earns a gross yield of about 7.4% before property tax and other costs.
Whole-flat rentals approved by HDB since Oct 2024. Rooms let out separately aren't included.
Flat layouts at Blk 421 Choa Chu Kang Avenue 4
HDB records the flat model of every resale. These are the layouts sold here, with the typical size.
| Flat type | Model | Typical size | Sales |
|---|---|---|---|
| 4-room | Model A | 104 sqm (1,119 sqft) | 7 |
| 5-room | Model A | 132 sqm (1,421 sqft) | 1 |
Model names come from HDB. "Improved", "New Generation" and "Model A" flats of the same type can differ by 10 sqm or more, so compare sizes, not just room counts.
Living at Blk 421 Choa Chu Kang Avenue 4
MRT
- South View LRT510 m, about 8 min walk
- Choa Chu Kang MRT520 m, about 8 min walk
Car park
| Car park | Type | Free parking | Night parking | Gantry |
|---|---|---|---|---|
| CK17 | Surface | Free on Sundays and public holidays, 7am to 10.30pm | No | - |
From HDB's car park list. HDB lists this block as served by these car parks.
1-minute quizzes for owners at Blk 421 Choa Chu Kang Avenue 4
What is your flat at Blk 421 Choa Chu Kang Avenue 4 worth?
Send us your floor and flat type. We'll reply with a valuation range based on the latest sales here and at nearby blocks, and what a sale would leave you after your loan and CPF refund.
Common questions
How much is a 4-room flat at Blk 421 Choa Chu Kang Avenue 4?
4-room flats at Blk 421 Choa Chu Kang Avenue 4 sold for a median S$550,000 in the last 12 months, or about S$491 per square foot. The range was S$545,000 to S$555,000. Floor level, condition and the remaining lease explain most of the gap.
How many years are left on the lease at Blk 421 Choa Chu Kang Avenue 4?
The lease started in 1992 and runs for 99 years to 2091, so about 64 years are left. Banks and CPF limit how much a buyer can borrow and use once fewer than 60 years remain, which affects who can buy.
How much rent can I get at Blk 421 Choa Chu Kang Avenue 4?
HDB approved 3 4-room rentals here in the last 12 months, at a median S$3,400 a month (S$2,300 to S$3,500). See more in the HDB rental rates checker.
What is the postal code of Blk 421 Choa Chu Kang Avenue 4?
The postal code of Blk 421 Choa Chu Kang Avenue 4 is Singapore 680421.
What is the nearest MRT station to Blk 421 Choa Chu Kang Avenue 4?
South View LRT station is about 510 m away, roughly 8 minutes on foot. Choa Chu Kang MRT is the next closest, about 520 m away.
Where do residents of Blk 421 Choa Chu Kang Avenue 4 park?
Surface car park CK17: Free on Sundays and public holidays, 7am to 10.30pm.
What is my flat at Blk 421 Choa Chu Kang Avenue 4 worth?
Recent sales at the block are the best guide, adjusted for your floor, facing and condition. Send us your unit and we'll reply with a valuation range on WhatsApp.
Other blocks on Choa Chu Kang Avenue 4
- Blk 3055-room S$715,000
- Blk 3064-room S$612,500
- Blk 3074-room S$618,000
- Blk 4144-room S$530,000
- Blk 415
- Blk 4165-room S$700,000
- Blk 4174-room S$540,000
- Blk 4184-room S$561,500
- Blk 419Executive S$888,000
- Blk 420Executive S$875,000
- Blk 4225-room S$589,500
- Blk 4234-room S$550,278
- Blk 4245-room S$570,000
- Blk 4254-room S$561,400
- Blk 4264-room S$548,000
- Blk 4275-room S$662,500
- Blk 4284-room S$540,000
- Blk 4295-room S$663,944
- Blk 4305-room S$675,000
- Blk 4314-room S$554,000
- Blk 4324-room S$528,000
- Blk 4334-room S$548,000
- Blk 4344-room S$568,500
- Blk 4354-room S$555,333
Blocks nearby
- Blk 411 Choa Chu Kang Avenue 3100 m · 4-room S$580,000
- Blk 410 Choa Chu Kang Avenue 3150 m · 4-room S$480,000
- Blk 409 Choa Chu Kang Avenue 3150 m · 4-room S$501,444
- Blk 407 Choa Chu Kang Avenue 3160 m · 4-room S$520,000
- Blk 412 Choa Chu Kang Avenue 3170 m · 4-room S$535,005
- Blk 406 Choa Chu Kang Avenue 3170 m · 4-room S$597,500
- Blk 413 Choa Chu Kang Avenue 3210 m · 4-room S$538,000
- Blk 408 Choa Chu Kang Avenue 3210 m · 4-room S$573,000
All HDB blocks in Choa Chu Kang · All towns
Source: HDB resale flat prices, renting out of flats and HDB property information, from data.gov.sg. Resales from Oct 2023 to Oct 2026. Prices are what buyers paid; your flat's value depends on its floor, facing, condition and lease.