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

509-511 New South Head Road, Double Bay

Strata plan SP6406 · 15 lots (NSW Strata Hub) · registered 1972-07-21 (age floor) · VG property id 2095216

This building has 12 recorded sales since 2015; 75% of its 4 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.

Every sale in this building

12 priced transfers on the public record since 2015. Across 4 same-unit resales, owners held a median 2.5 years and 75% sold above what they paid (median +12.5%/yr gross — price only, before costs and any renovation).

In the last three years, 4 lots changed hands — 27% of the scheme's 15 lots. Trailing 36 months of VG transfers ÷ registered lot count.

9/509 NEW SOUTH HEAD RD$2.03M2025-12-09

13/509 NEW SOUTH HEAD RD$2.48M2025-10-17

6/509 NEW SOUTH HEAD RD$1.69M2025-05-07

9/509 NEW SOUTH HEAD RD$1.61M2024-08-03

13/509 NEW SOUTH HEAD RD$2.48M2022-05-12

15/509 NEW SOUTH HEAD RD$1.82M2022-04-20

NSW Valuer General bulk property sales information (CC-BY), every lot sharing this building's property id; addresses and unit labels are the register's own strings. Resale pairs under 3 months apart or settling on the same date are excluded; 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

21 Guilfoyle Ave11 sales · 9 lots · 100% of resales above purchase

2 Holt St11 sales · 28 lots · 100% of resales above purchase

526 New South Head Rd11 sales · 20 lots

2 Knox St35 sales · 93% of resales above purchase

20 Cross St30 sales · 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 1972 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.