← Board · Mosman — prices, sales, schools, crime

21 Park Avenue, Mosman

Strata plan SP356 · 9 lots (NSW Strata Hub) · registered 1963-05-09 (age floor) · VG property id 762464

This building has 8 recorded sales since 2015; 100% of its 3 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.

21 Park Ave, Mosman is a 9-lot apartment building with 8 recorded sales since 2015, including 3 in the last 3 years. All 3 resale pairs sold above their previous purchase price. In the postcode, 1-bedroom apartments have a median rent of $672/wk, with the middle half of rents between $595–$725/wk, and 2-bedroom apartments have a median rent of $870/wk, with the middle half between $758–$1072/wk.

Written by AI from the government records on this page — checked figure-by-figure against them (2026-08-28). A description of the record, never advice.

Every sale in this building

8 priced transfers on the public record since 2015. Across 3 same-unit resales, owners held a median 2.2 years and 100% sold above what they paid (median +5.3%/yr gross — price only, before costs and any renovation).

In the last three years, 3 lots changed hands — 33% of the scheme's 9 lots. Trailing 36 months of VG transfers ÷ registered lot count.

Unit 1$1.18M2026-03-06

Unit 5$1.39M2025-10-22

Unit 1$911k2024-01-04

Unit 2$1.64M2023-08-11

Unit 3$875k2022-11-03

Unit 1$900k2022-02-15

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$595–$725/wkmedian $67266 bonds, Q2 2026

2-bed$758–$1072/wkmedian $870112 bonds, Q2 2026

3-bed$1248–$1725/wkmedian $150023 bonds, Q2 2026

Real transacted rents — every residential bond lodged in postcode 2088 (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

1 A Queen St8 sales

238 Raglan St8 sales · 9 lots · 100% of resales above purchase

186 Raglan St8 sales · 18 lots

15 Hale Rd84 sales · 89% of resales above purchase

2 Brady St36 sales · 127 lots · 44% 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 1963 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.