← Board · Double Bay — prices, sales, schools, crime

27 William Street, Double Bay

Strata plan SP111029 · 6 lots (NSW Strata Hub) · registered 2026-03-20 (age floor) · VG property id 6047917

This building has 4 recorded sales since 2021; 1 of its 6 lots are for sale right now. Every figure below is a government record with its source named — and the last section lists what the public record cannot tell you.

On the market now

2/27 William Street, Double Bay NSW 2028 3 bed Price withheld 115d on market

Every sale in this building

4 priced transfers on the public record since 2021 (sales before the 2026 registration are off-the-plan contracts, dated at signing).

In the last three years, 1 lot changed hands — 17% of the scheme's 6 lots. Trailing 36 months of VG transfers ÷ registered lot count.

Unit 1$10.99M2025-10-23

Unit 4$10.45M2023-03-24

Unit 6$10.49M2022-04-22

Unit 5$9.49M2021-12-01

NSW Valuer General bulk property sales information (CC-BY), every lot sharing this building's property id; unit labels are the register's own strings. Transfers under 3 months apart are excluded as double entries; growth figures are gross price movements, not returns.

What units here actually rent for

3-bed$1545–$2600/wkmedian $225014 bonds, Q2 2026

Real transacted rents — every residential bond lodged in postcode 2028 (NSW Fair Trading, CC-BY). Postcode is the finest geography the source publishes; the middle half (25th–75th percentile) is shown because identical floor plans in one building can lease hundreds apart.

Photo-read condition

1 of the building's photographed live listings read as: renovated. Read by AI from each listing's own marketing photos — a photo signal, not an inspection; cameras see nothing of plumbing, wiring, waterproofing or the strata record.

Nearby buildings with dossiers

2 Knox St23 sales · 100% of resales above purchase

45 Ocean Ave22 sales · 82 lots · 100% of resales above purchase

2 Henrietta St18 sales · 35 lots · 100% of resales above purchase

20 Cross St30 sales · 70% of resales above purchase

What this dossier cannot tell you

Stated so a gap never reads as a clean bill (rule 7's positive form — silence is not evidence):

The strata books. Levies, the capital-works (sinking) fund, insurance, AGM minutes, and any defect claims in progress are not public records. Only a strata report — a paid inspection of the owners corporation's own books — has them. If you are serious about a unit here, buy that report; nothing on this page substitutes for it.
When the building was actually completed. The 2026 registration date is a floor — the scheme existed by then. Occupation certificates aren't in our sources; a conveyancer can obtain them.
Bedrooms on sales records. The Valuer General publishes no bedroom counts, so the sales above are every configuration pooled — a $732k sale and a $1.38M sale may be different-sized homes, not a price swing.
This building's own rents. Bond data is postcode-grain — the ranges above are the area's real transactions, not this building's ledger.
Anything behind the photos. Condition reads come from marketing photos and are unvalidated against outcomes — they see no plumbing, wiring, waterproofing, or the strata record.
Why any individual vendor is selling. The patterns above are the building's record; no line on this page is a claim about a particular home or owner.

© State of New South Wales (Spatial Services, a business unit of the Department of Customer Service NSW). For current information go to spatial.nsw.gov.au. VG figures: NSW Valuer General bulk property sales information (CC-BY). Every fact above names its source; where a source doesn't cover this building, the section doesn't appear.