Completed 1997

Castle Green

D26 · Mandai / Upper Thomson · 481 Yio Chu Kang Road

A 664-unit condo in D26, completed in 1997, on a 99-year lease from 1993 with about 66 years left. Developed by Castle Green Property Pte Ltd.

Source: Condo master (URA caveats); URA transactions, Nov 2026

66 yrs

Lease left

$1,395

Avg $psf, 12 months

Sales, 12 months

1997

Completed

Floor plans →

What brings you to Castle Green?

Buying here? Get a second opinion. 2-bedders here sold for $1.239M to $1.37M over the last 12 months. Our consultants can run the numbers against your budget: which stack, what to pay, what to avoid. Free for buyers of private property.

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Get a second opinion

02 — Prices

Castle Green prices

Last 12 months

Sales

$1,395

Average $psf

$1,283 – $1,532

$psf range

$1.24M – $2.16M

Price range

By bedroom type

Last 12 months

TypeSalesAvg $psfPrice rangeSize

2-Bedroom8 sales$1,360 psf$1.24M – $1.37M947 sq ft

3-Bedroom1 sale$1,283 psf$1.56M1,216 sq ft

4-Bedroom2 sales$1,528 psf$2.15M – $2.16M1,410 sq ft

Prices by bedroom type are based on matching sales to unit sizes.

By unit size

Last 12 months

SizeSalesAvg $psfAvg pricePrice range

900–1,099 sq ft8 sales$1,361 psfAvg $1.29M$1.24M – $1.37M

1,100–1,299 sq ft6 sales$1,381 psfAvg $1.6M$1.5M – $1.68M

1,300–1,599 sq ft2 sales$1,529 psfAvg $2.16M$2.15M – $2.16M

Average $psf by year

In 2025, sales here averaged $1,364 psf, 37% below the D26 average of $2,170 psf for private homes (condos, apartments and ECs).

This condoD26 average

$2,400 $1,550 $700

$821

2015’15

$829

2016’16

$824

2017’17

$849

2018’18

$861

2019’19

$885

2020’20

$940

2021’21

$1,057

2022’22

$1,226

2023’23

$1,291

2024’24

$1,364

2025’25

$1,391

2026’26

Show as a table

Year	This condo	D26 average
2026	$1,391	$2,240
2025	$1,364	$2,170
2024	$1,291	$2,160
2023	$1,226	$2,024
2022	$1,057	$1,985
2021	$940	$1,133
2020	$885	$1,144
2019	$861	$1,082
2018	$849	$1,021
2017	$824	$1,006
2016	$829	$909
2015	$821	$958

Sales by year

620 sales since 2007; the busiest year was 2011 with 67. The 2026 bar covers Jan–Nov.

Show as a table

Year	Resale	Total
2026	13	13
2025	19	19
2024	26	26
2023	18	18
2022	34	34
2021	39	39
2020	22	22
2019	25	25
2018	33	33
2017	25	25
2016	15	15
2015	27	27
2014	9	9
2013	16	16
2012	43	43
2011	67	67
2010	55	55
2009	58	58
2008	28	28
2007	48	48

Sales in the last two years

37 sales, newest first. Units show the floor only.

DateUnitSizePrice$psfType

12 Oct 2026#06-XX947 sq ft · 2-Bedroom$1.28M$1,351 psfResale

11 Aug 2026#04-XX1,152 sq ft$1.63M$1,414 psfResale

20 May 2026#13-XX1,410 sq ft · 4-Bedroom$2.16M$1,532 psfResale

17 Apr 2026#02-XX947 sq ft · 2-Bedroom$1.3M$1,372 psfResale

1 Apr 2026#04-XX1,152 sq ft$1.66M$1,441 psfResale

1 Apr 2026#02-XX1,216 sq ft · 3-Bedroom$1.56M$1,283 psfResale

31 Mar 2026#13-XX1,410 sq ft · 4-Bedroom$2.15M$1,525 psfResale

26 Mar 2026#07-XX1,152 sq ft$1.6M$1,389 psfResale

12 Mar 2026#03-XX947 sq ft · 2-Bedroom$1.37M$1,446 psfResale

12 Feb 2026#03-XX947 sq ft · 2-Bedroom$1.25M$1,321 psfResale

Show all 37 sales

Compared with nearby condos

Compared with D26 and the five nearest similar condos · average $psf and price, all unit sizes

Castle GreenThis condo · 99-yr from 1993 · 15 sales, last 12 months $1,395 psfavg $1.52M

D26 medianAll condo sales, last 12 months $2,337 psfavg $2.24M

Seasons Park170 m · 1997 · 99-yr from 1995 · 12 sales $1,338 psfavg $1.54M Nuovo210 m · 2004 · 99-yr from 2001 · 7 sales $1,302 psfavg $1.89M Far Horizon Gardens350 m · 1986 · 99-yr from 1982 · 4 sales $1,052 psfavg $1.69M Thomson Grove540 m · 1984 · Freehold · 3 sales $1,560 psfavg $3.67M The Calrose620 m · 2007 · Freehold · 9 sales $1,969 psfavg $2.84M

Prices by bedroom type are based on matching sales to unit sizes.

Source: URA caveats, Nov 2026. The 2026 averages cover Jan–Nov.

03 — Rent

Castle Green rent

Leases starting Sep 2025–Aug 2026

Leases

$3,600

Median rent a month

$1.52M

Avg sale price, 12 months

2.9%

Est. gross yield

D26 median rent: $4,000 a month; est. gross yield 2.2%.

By bedroom type

TypeLeasesMedian rentMiddle halfD26 medianEst. yield

2-Bedroom40 leases$3,400 median$3,308 – $3,538D26 $3,6003.2% yield

3-Bedroom21 leases$4,400 median$4,000 – $4,600D26 $4,700– yield

4-Bedroom5 leases$5,100 median$4,500 – $5,200D26 $6,000– yield

Rent and yield compared with nearby condos

Est. gross yield, with median rent a month · nearest condos with 5+ leases

Castle GreenThis condo · 99-yr from 1993 · 66 leases 2.9%$3,600 median rent

D26 medianAll condo leases, same months 2.2%$4,000 median rent

Seasons Park170 m · 1997 · 99-yr from 1995 · 40 leases 3.0%$3,800 median rent Nuovo210 m · 2004 · 99-yr from 2001 · 21 leases 2.9%$4,600 median rent Far Horizon Gardens350 m · 1986 · 99-yr from 1982 · 29 leases 2.8%$3,900 median rent Thomson Grove540 m · 1984 · Freehold · 17 leases 1.5%$4,550 median rent The Calrose620 m · 2007 · Freehold · 67 leases 2.0%$4,800 median rent

Estimated gross yield: a year of median rent (leases starting Sep 2025–Aug 2026) over the average sale price of the last 12 months, before costs. No yield is shown with fewer than 3 sales in the year. Rents and sale prices both cover roughly the last 12 months, so read the yield as a guide to that year rather than an exact figure. A higher yield often reflects a lower price, such as an older lease, rather than a better buy.

Source: URA rental contracts, Aug 2026

04 — Lease

66years left of 99

1993Ends 2092

99-year lease from 1 Dec 1993. About 66 years remain as of Nov 2026.

Source: Condo master (URA caveats)

05 — Unit mix

Castle Green floor plans by bedroom type

12 layouts, from a 947 sq ft 2-bedroom to a 1,593 sq ft 3-bedroom. Pick a type to see its floor plans.

Bedroom typeLayoutsSize range

2-Bedroom 4 947 – 1,302 sq ft 4 layouts · 947 – 1,302 sq ft

A2947 sq ft A1947 sq ft A2a1,302 sq ft A1a1,130 sq ft

3-Bedroom 6 1,173 – 1,593 sq ft 6 layouts · 1,173 – 1,593 sq ft

B31,173 sq ft B1b1,345 sq ft B1a1,280 sq ft B21,216 sq ft B2a1,593 sq ft

4-Bedroom 2 1,410 sq ft 2 layouts · 1,410 sq ft

C1,410 sq ft

Source: Developer floor plans; bedroom counts read by Stacked

06 — Location

Near Castle Green

MRT stations

TE Lentor 590 m · 7 min walk

NS Yio Chu Kang 970 m · 12 min walk

TE Mayflower 1.9 km · 23 min walk

Walking times and distances are estimates from OneMap walking routes; a station without a walking time shows the straight-line distance. Check OneMap for your exact route.

Primary schools

Within 1 km

Anderson Primary School 240 m · 9 min walk

Within 2 km

Mayflower Primary SchoolPopular 1.1 km · 22 min walk

CHIJ St. Nicholas Girls' School 1.6 km · 31 min walk

Ang Mo Kio Primary School 1.9 km · 30 min walk

Distances are straight-line, which is what the 1 km and 2 km bands refer to; walking times are estimates from OneMap walking routes. Check the MOE website for confirmation.

Everyday amenities

Park Teacher's Estate Park 1.3 km · 16 min

Clinic The Chungkiaw Family Practice 860 m · 10 min

Supermarket Cold Storage / Giant 1.7 km · 20 min

Hawker centre Ang Mo Kio 628 Market 910 m · 11 min

Map of the area around Castle Green, with nearby MRT stations and primary schools — Map data © OpenStreetMap contributors

Source: OneMap walking routes, Nov 2026

07 — Nearby

Condos and supply around Castle Green

Closest condos

Seasons Park170 m · 1997 · 99-yr from 1995 avg $1.54M$1,338 psf Nuovo210 m · 2004 · 99-yr from 2001 avg $1.89M$1,302 psf Far Horizon Gardens350 m · 1986 · 99-yr from 1982 avg $1.69M$1,052 psf Calrose Garden510 m · Freehold

New launches within 2 km

Lentoria660 m · 99-yr avg $2.63M$2,453 psf Hillock Green740 m · 99-yr avg $2.03M$2,079 psf Lentor Gardens Residences970 m · 99-yr avg $2.17M$2,360 psf

Upcoming supply

Lentor Central710 m · about 531 units · 1.59 ha Awarded · $13,753 psm GFA · Mar 2026

Lentor Gardens900 m · about 482 units · 2.06 ha Awarded · $9,903 psm GFA · Apr 2025

Upper Thomson Road (Parcel A)2.0 km · about 597 units · 2.44 ha Awarded · $11,427 psm GFA · Oct 2025

Upper Thomson Road (Parcel B)2.0 km · about 890 units · 3.2 ha Awarded · $9,737 psm GFA · Apr 2024

Source: URA transactions; URA land sales; OneMap distances, Nov 2026

08 — From Stacked

Questions about Castle Green

How many years are left on the lease at Castle Green?

About 66 years. It is a 99-year lease from 1993.

When was Castle Green completed?

1997.

How many units does Castle Green have?

664 units, up to 13 storeys.

What sizes are the 2-bedroom units?

947 to 1,302 sq ft across four layouts.

What is the price psf at Castle Green?

15 sales in the last 12 months averaged $1,395 psf, ranging from $1,283 to $1,532 psf.

What did the latest sale go for?

A 947 sq ft unit sold for $1.28M ($1,351 psf) on 12 Oct 2026.

How much is the rent at Castle Green?

Leases starting Sep 2025–Aug 2026 had a median rent of $3,600 a month ($3,400 for a 2-bedroom, $4,400 for a 3-bedroom and $5,100 for a 4-bedroom). That is an estimated gross yield of about 2.9%, before costs.

What is the nearest MRT station?

Lentor (TE), a 7-minute walk (590 m). Yio Chu Kang (NS) is 970 m away.

Which primary schools are within 1 km?

Anderson Primary School, 240 m away.

Who developed Castle Green?

Castle Green Property Pte Ltd.

Answers generated from the data on this page, Nov 2026

Castle Green

Castle Green prices

Castle Green rent

Castle Green floor plans by bedroom type

Near Castle Green

Condos and supply around Castle Green

Read more about Castle Green

Questions about Castle Green