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

41 William Street, Double Bay

Strata plan SP3617 · 61 lots (NSW Strata Hub) · registered 1968-11-06 (age floor) · VG property id 2104216

This building has 30 recorded sales since 2015; 67% of its 6 tracked resales sold above the owner's purchase price. Every figure below is a government record with its source named — and the last section lists what the public record cannot tell you.

41 William St, Double Bay contains 61 strata lots. In the postcode, 1-bedroom rents have a median of $815/wk, with the middle half of rents $662–$900/wk. 2-bedroom rents have a median of $1075/wk ($925–$1250/wk for the middle half), and 3-bedroom rents have a median of $2250/wk ($1545–$2600/wk for the middle half). 30 sales were recorded from 2015, with 8 sales in the last 3 years.

Written by AI from the government records on this page — checked figure-by-figure against them (2026-08-27). A description of the record, never advice.

Every sale in this building

30 priced transfers on the public record since 2015. Across 6 same-unit resales, owners held a median 1.3 years and 67% sold above what they paid (median +8.2%/yr gross — price only, before costs and any renovation).

In the last three years, 8 lots changed hands — 13% of the scheme's 61 lots. Trailing 36 months of VG transfers ÷ registered lot count.

Unit 53$883k2025-04-16

Unit 22$883k2025-04-16

Unit 54$2.61M2024-12-06

Unit 30$2.61M2024-12-06

Unit 52$2.86M2024-12-04

Unit 12$2.86M2024-12-04

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

1-bed$662–$900/wkmedian $81515 bonds, Q2 2026

2-bed$925–$1250/wkmedian $107553 bonds, Q2 2026

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.

Nearby buildings with dossiers

20 Cross St30 sales · 70% of resales above purchase

28 Cross St30 sales

2 Knox St28 sales · 100% of resales above purchase

45 Ocean Ave45 sales · 82 lots · 92% of resales above purchase

539 New South Head Rd32 sales · 42 lots · 100% 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 1968 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.
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.