Castle Green

127 filed transactions · District 26 · OCR

Median, per square foot
1,185 psf
Observed range
$851 — $1,898 psf
S$1,375k median price

99 yrs lease commencing from 1993 · 127 filed transactions

▲ 5.4% vs 12 months ago
S$1,375k
Median price
127
Filed transactions
88%
Spread, low to high

URA Data Service — PMI_Resi_Transaction · 2021-09 to 2026-09 · accessed 2026-09-10

Which of these are you

I’m considering buying this
I own this

Median price by month24 months with a sale

May '24 · S$1,511kAug '26 · S$1,629k

The transactions behind those figures20 of 127

Nothing modelled — these are the filed sales.

107 sqm · floor 01-05Condominium · Resale · 2026-08
S$1,628,888$1414 psf
131 sqm · floor 11-15Condominium · Resale · 2026-05
S$2,160,000$1532 psf
107 sqm · floor 01-05Condominium · Resale · 2026-04
S$1,660,000$1441 psf
88 sqm · floor 01-05Condominium · Resale · 2026-04
S$1,300,000$1372 psf
113 sqm · floor 01-05Condominium · Resale · 2026-04
S$1,560,000$1283 psf
107 sqm · floor 06-10Condominium · Resale · 2026-03
S$1,600,000$1389 psf
88 sqm · floor 01-05Condominium · Resale · 2026-03
S$1,370,000$1446 psf
131 sqm · floor 11-15Condominium · Resale · 2026-03
S$2,150,000$1525 psf
Why a range, not one number. Valuation tools routinely disagree by S$15,000–S$80,000 on the same home, because none can see your floor, facing, renovation or lease. The spread above is the real one — the cheapest and dearest psf actually filed here over the period. Where your unit sits inside it depends on the things the data cannot see.
Contains information from HDB Resale Flat Prices (data.gov.sg) accessed on 2026-09-10 from data.gov.sg, made available under the Singapore Open Data Licence v1.0Contains information from URA Data Service — PMI_Resi_Transaction accessed on 2026-09-10, made available under the Singapore Open Data Licence v1.0

What the floor is worth

This project—

Not enough filed sales at both ends of this project to compare it with itself. It needs 3 or more high and 3 or more low. The figure beside this one is the town, not here.

District 26, typical project+8.1%

Middle of 6 projects in District 26 that clear the bar — half fall between +6.4% and +8.6%. None came out negative in this set.

Every band in District 26, for reference. This pools all buildings in the town, so it carries the estates as well as the storeys — a town whose tall blocks are its newest ones will show a steeper climb than height alone buys. The two figures above are the ones that hold a building constant.

StoreysMedian psfFiled sales
01-05S$2,114901
06-10S$2,136854
11-15S$2,179755
16-20S$2,225563
21-25S$2,273436

URA Data Service — PMI_Resi_Transaction · accessed 2026-09-10T21:15:39.110Z. Storey bands are the source's own — no floor number is inferred from them. A premium is a median of filed transactions, not a valuation of any home.

What's around

Straight-line distance from the building — the walk is longer, and how much longer depends on what is in the way.

Nearest station
Lentor
484m
Primary schools within 1km
1
nearest 176m
Primary schools · straight-line distance
  • Anderson Primary School176m
4 more between 1km and 2km
  • Mayflower Primary School1.1km
  • CHIJ St. Nicholas Girls' School1.6km
  • Ang Mo Kio Primary School1.8km
  • Jing Shan Primary School1.9km
A band is priority, not a place — and this is an indication, not MOE's answer. MOE measures home to school in a straight line, which is what is measured here. But it measures to the school's land boundary and this measures to the school's single registered coordinate, so a large campus reads as further away than MOE would find it. It also measures from the address on your child's registration, not from the block. A school near the line can fall either side of it once MOE measures it, and an oversubscribed school still ballots within a band. For the official category for a specific address, use OneMap's SchoolQuery.
Stations
  • Lentor484m
  • Yio Chu Kang551m
  • Mayflower1.4km
Also nearby
  • Hawker centreAng Mo Kio Ave 4 Blk 628 (Ang Mo Kio 628 Market)549m
  • ParkTeacher'S Estate Park961m
  • Other schoolsPresbyterian High School460m

Coordinates from OneMap, © Singapore Land Authority. Distances are straight-line.
Station exit locations — LTA (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.
School addresses — MOE School Directory and Information (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.
Hawker centre locations — NEA (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.
Park locations — NParks (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.

What has sold nearby300m

3projects within 300m
$1,236–$1,365the middle half, per sq ft
$1,313median of those sales

From 46 filed sales — the 20 most recent at each project, which is all this index keeps. 2 of them are at that limit, so they have sold more than is counted here.

ProjectAwayFiledFloorSizePSF
Nuovo188m2026-0801-05132 sqm$1,365
Nuovo188m2026-0606-10129 sqm$1,390
Seasons Park268m2026-0606-1097 sqm$1,303
Seasons Park268m2026-0601-0597 sqm$1,296
Seasons Park268m2026-0606-10103 sqm$1,236
Nuovo188m2026-0501-05104 sqm$1,313
Nuovo188m2026-0411-15119 sqm$1,334
Nuovo188m2026-0401-05171 sqm$1,176
Seasons Park268m2026-0411-1599 sqm$1,303
Seasons Park268m2026-0201-05120 sqm$1,316
Seasons Park268m2026-0206-10120 sqm$1,363
Seasons Park268m2026-0206-10116 sqm$1,482
Nuovo188m2026-0101-05171 sqm$1,141
Nuovo188m2025-1006-10132 sqm$1,330
Nuovo188m2025-0506-10144 sqm$1,277
Nuovo188m2025-0501-05144 sqm$1,334
Nuovo188m2025-0406-10104 sqm$1,376
Nuovo188m2025-0311-15129 sqm$1,368
Nuovo188m2025-0306-10104 sqm$1,349

The 19 most recent are listed, out of 46 in the index at this radius. The floor band is what URA and HDB publish; neither feed carries a unit number.

The afternoon sun, and what is approved in it247°–293°

NESW

Seen from here, the sun sets at 247° (WSW) in December and 293° (WNW) in June — a swing of 47° across the year. A window on one of those bearings takes the low sun for part of the year and none of it for the rest.

Today the sun drops below 15° at 06:04 pm and sets at 07:00 pm, arriving from 273° (W). Above that angle it is over the roof rather than through the window; near the equator the midday sun is almost overhead, which is why this is only ever about the last hour.

Nothing published says which way a unit points — not URA, not HDB. You are the one standing in it, or holding the plan. If the floor plan carries a north arrow, the plan reader will read it off and say so when it cannot.

1 permitted planning decision sits on those bearings within 400m. What it means depends entirely on which:

ApprovedAwayBearingHeightWhat
2026-07-23376m283° WNW3 storeysProposed new erection of a 3-storey envelope control corner terrace dwelling house
This does not tell you whether anything is blocked. A shadow needs the height and footprint of every building between you and the sun, and no public dataset here carries them — so none is drawn. What is above is the bearing the sun arrives on, which is astronomy, and what has been permitted along it, which is a filed decision with a reference number. Joining the two is yours. Bearings and distances are straight-line. A decision is permission to build, not a building: some are never started, and heights come from URA’s own wording, which states one about four times in five.

The land under Castle Green

HDB put this parcel out to tender and names Castle Green as what was built on it. Everything below is from that tender: the dates, the winning price, and the 7 bids that came in.

  1. Tender launched12 Mar 1993
  2. Tender closed13 May 19937 bids received
  3. Awarded1 Sep 1993Allgreen Properties Ltd, Hoe Seng Co Pte Ltd, Asiawide Investment Pte Ltd
  4. Winning tenderS$119,000,000HDB publishes no gross floor area for this site, so a rate per square foot cannot be worked out from what is published
Parcel
Ang Mo Kio S1 Ang Mo Kio Ave 6
Site area
39,576 sq m
Lease
99 yrs
Plot ratio
2
Gross floor area
Not published
Sold as
Condominium
Every bid — all 7, as HDB published them
Ranked by amount. The gap column is each bid measured against the winning one — subtraction, not a judgement about whether anyone bid well.
#TendererBidBehind the winner
1Allgreen Properties Ltd, Hoe Seng Co Pte Ltd, Asiawide Investment Pte LtdS$119,000,000—
2Ho Lee Investment (Pte) LtdS$112,998,000S$6,002,000 · 5.0%
3DBS Realty (Pte) LtdS$103,800,000S$15,200,000 · 12.8%
4City Development LtdS$102,200,000S$16,800,000 · 14.1%
5United Overseas Land Group, UIC Investments (Properties) Pte Ltd, Interpex Service Pte Ltd and Peak Properties Pte LtdS$77,000,000S$42,000,000 · 35.3%
6First Capital Corporation LtdS$75,826,754S$43,173,246 · 36.3%
7Winmax Investment Pte Ltd, Winbill Investment Pte LtdS$75,510,000S$43,490,000 · 36.5%

What the land cost and what a unit sells for are not two ends of one sum. Between them sit construction over a multi-year build, financing, the development charge, marketing and agent commissions, GST, and the cost of holding unsold units. None of those is published for a named project, so this site does not estimate a developer’s cost or margin and no figure here should be read as one.

Source: HDB — Sites Sold by HDB · tender awarded 1 Sep 1993 · transcribed from HDB’s published tables on 2026-08-31 · prices are nominal and are not adjusted for inflation. HDB names the development on this row as “Castle Green”. This parcel, from tender to today · Every land sale

Where the money actually goes

Drag the sale price. Everything moves.

Cash
Loan
CPF principal
CPF interest
Fees
Sale price · S$1,375,000
Outstanding loan
CPF principal used
Years held
Agent fee %
Sale priceS$1,375,000
Outstanding loan−S$180,000
CPF principal refundBack into your CPF, not lost−S$150,000
CPF accrued interestCPF OA rate, compounded over 12 years−S$52,416
Agent fee (2% + GST) and legal−S$32,775
Cash in handS$959,809
S$202,416 returns to your CPF, not your pocket — still yours, and it can fund the next purchase. The accrued interest alone is S$52,416, and it grows every year you hold. HDB concessionary loan interest is 2.6% p.a.; CPF Ordinary Account accrues at 2.5%.

Look up somewhere else

Any HDB block or private project in Singapore.