Blk 817 Yishun St 81

1 filed resale transactions · Yishun · 61 years 06 months of lease left

Median, per square foot
478 psf
The one filed sale
S$478 psfS$535k · one filed transaction

Flat type filed here: 4-room. Confirm the specific unit’s type from its listing before running Blindspot.

HDB Resale Flat Prices (data.gov.sg) · 2023-09 to 2026-09 · accessed 2026-09-30

What are you here to work out?

I’m thinking of buying it
I own it

The transactions behind those figures

1 of 1 · filed, nothing modelled
104 sqm · storey 01–034 ROOM · Model A · 2025-07
S$535,000$478 psf

One filed sale is not a range. It is what was filed here once, not a level this address trades at — the nearby sales below are the wider evidence.

Dataset licences and attribution
Contains information from HDB Resale Flat Prices (data.gov.sg) accessed on 2026-09-30 from data.gov.sg, made available under the Singapore Open Data Licence v1.0Contains information from URA Data Service — PMI_Resi_Transaction accessed on 2026-09-30, made available under the Singapore Open Data Licence v1.0

Where it sitsThe whole map

© OneMap, SLA · © OpenStreetMap
Median psf · HDB
under $500
$500
$531
$560
$602
$684+

Streets and names: OneMap — Basemap © OneMap, Singapore Land Authority. Buildings: HDB’s own outlines and floor counts, and OpenStreetMap’s, drawn true to scale. Shadows are cast from every building of published height for the time shown; trees and awnings are in no dataset. Two fingers move the map on a phone.

Sun and shadow here — any hour, any month

Deeper checks

What changes from one home to the next.

Floor, surroundings, nearby sales, afternoon sun and the history of the land—shown only where the public record carries enough to say something.

What the floor is worth

This block—

Too few filed sales at both ends of this block — it needs 3 high and 3 low. The figure beside is YISHUN, not here.

YISHUN, typical block+10.7%

Middle of 6 blocks in YISHUN that clear the bar — half fall between +9.9% and +11.9%. None came out negative in this set.

Every band in YISHUN, for reference. Pooled across buildings, so it mixes the age of an estate with height; the two figures above hold a building constant.

StoreysMedian psfFiled sales
01 TO 03S$516525
04 TO 06S$534685
07 TO 09S$553615
10 TO 12S$564625
13 TO 15S$617139

HDB Resale Flat Prices (data.gov.sg) · accessed 2026-09-30 · storey bands as published · a median of filed sales, 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
Khatib
569m
Primary schools within 1km
2
nearest 699m
Primary schools · straight-line distance
2 more between 1km and 2km
The 1km band gives ballot priority, not a school place. These distances are an indication. Check your address's official category with OneMap's SchoolQuery.
How this distance differs from MOE's

MOE measures in a straight line to the school's land boundary from the address on your child's registration. This site measures from the block to the school's single registered coordinate. A large campus can therefore read as further away here, and a school near the line can fall on either side when MOE measures it. An oversubscribed school still ballots within a band.

Stations
  • Khatib569m
  • Yishun1.9km
Also nearby
  • ParkLower Seletar Reservoir Park763m
  • Preschools6 within 1kmnearest 309m
  • Other schoolsOrchid Park Secondary School565m

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.
Park locations — NParks (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.
Preschool locations — ECDA (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.

What has sold nearby300m

12blocks within 300m
$519–$608the middle half, per sq ft
$562median of those sales

From 69 filed sales, at most the 20 most recent per block.

Scroll sideways to see the date, storey, size and psf →

BlockAwayFiledStoreySizePSF
Blk 829 Yishun St 81285m2026-0910–1273 sqm$598
Blk 825 Yishun St 81297m2026-0910–1273 sqm$583
Blk 825 Yishun St 81297m2026-0910–12103 sqm$576
Blk 830 Yishun St 81243m2026-0810–12103 sqm$555
Blk 825 Yishun St 81297m2026-0807–0973 sqm$608
Blk 820 Yishun St 81117m2026-0704–06129 sqm$547
Blk 877 Yishun St 81264m2026-0707–09145 sqm$650
Blk 833 Yishun St 81278m2026-0707–0973 sqm$605
Blk 829 Yishun St 81285m2026-0604–06103 sqm$519
Blk 816 Yishun St 8174m2026-0301–03104 sqm$491
Blk 877 Yishun St 81264m2026-0310–12142 sqm$641
Blk 877 Yishun St 81264m2026-0307–09142 sqm$641
Blk 821 Yishun St 81142m2025-1107–09104 sqm$545
Blk 816 Yishun St 8174m2025-1001–03103 sqm$514
Blk 821 Yishun St 81142m2025-0607–09122 sqm$553
Blk 820 Yishun St 81117m2025-0307–09122 sqm$522
Blk 820 Yishun St 81117m2024-1210–12121 sqm$554
Blk 820 Yishun St 81117m2024-0904–06104 sqm$491
Blk 820 Yishun St 81117m2024-0901–03104 sqm$507
Blk 821 Yishun St 81142m2024-0810–12104 sqm$512
Blk 820 Yishun St 81117m2024-0701–03121 sqm$485
Blk 821 Yishun St 81142m2024-0604–06122 sqm$476

The 22 most recent of 69 at this radius. Storey bands as published; no feed carries a unit number.

Where the money actually goes

Drag the sale price. Everything moves.

Cash
Loan
CPF refund from proceeds
Fees
Sale price · S$535,000
Outstanding loan
CPF principal used
CPF accrued interest, if known

Use the “What happens if” figure in your CPF Home ownership dashboard. Leave blank to estimate it.

Years since CPF was first used

Used only for the estimate when accrued interest is blank.

Agent fee %

A sale at S$535,000

Your figures · CPF interest estimated
Sale priceS$535,000
Redeems the loan−S$180,000
Agent fee (2% + GST) and legal−S$14,463
Refund to your CPFprincipal plus estimated accrued interest−S$202,416
Cash to youS$138,121
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. CPF Board’s market-value rule · CPF OA interest 2.5% p.a.

Three things this can't know

  1. Your actual floor, facing and renovationPublic data gives a storey band, never your unit.
  2. Whether you sell or buy firstChanges your ABSD, timeline and bridging cost — often by five figures.
  3. Your real CPF accrued interestThe figure here is an estimate. Yours is in your CPF statement right now.

Tell me those and I'll run your actual numbers — no charge, no obligation.

Optional — but it's the single biggest thing the public data can't see.

What are you weighing up?
Rough timing
Staying in touch — optional

Leave it unticked and the form still sends — you get the reply to what you asked, at the address you gave, and nothing after it. This form asks for no phone number and stores none.

Leaving it unticked is fine — the tools work either way, and I'll still reply to this enquiry. I don't sell or share your details.

Look up somewhere else

Any HDB block or private project in Singapore.