8/9 Guilfoyle Ave, Double Bay NSW 2028
Double Bay Unit
Technical details
How this sale compares
Sold for $1,166,666 in Oct 2026, up $66,666 (6%) on the $1,100,000 paid in Jun 2016. That is about 0.6% a year over 10 years.
Over the same period the median unit price in Double Bay rose 19%, from $1,850,000 in 2016 to $2,200,000 in 2026.
The 2026 sale was 47% below the Double Bay median unit price for that year ($2,200,000 across 42 sales).
Double Bay medians use NSW Valuer General sales of $50,000 or more, leaving out part-interest transfers and contracts covering several properties, and need at least 10 sales in the period. See Double Bay sold prices by year.
Rent and yield
Units in postcode 2028 rented for a median $1,050 a week, from 331 bonds lodged Oct 2025 to Sep 2026.
On its last sale of $1,166,666 on 9 Oct 2026, that rent is a gross yield of 4.7% a year, before costs and vacancies.
Median weekly rents from residential rental bonds lodged with NSW Fair Trading, by postcode. This home's own rent may differ. See rents by bedrooms in Double Bay.
Planning controls
- Zone
- R3 Medium Density Residential
- Minimum lot size
- 700 m² For subdividing the whole site, not one unit
- Maximum building height
- 10.5 m
- Floor space ratio
- 1:1 Floor area allowed for each square metre of site
From the Woollahra Local Environmental Plan 2014 maps on the NSW Planning Portal, looked up at this address's map point on 2 Nov 2026. A control can cover only part of a site and plans change, so the council's planning certificate is the formal record. Planning data from the NSW Department of Planning, Housing and Infrastructure, CC BY 4.0.
Related sales
Sale history
Sold is the contract date, when the sale was agreed. Settled is the date ownership transferred.
| Beds | Baths | Cars | Title reference | |||
|---|---|---|---|---|---|---|
| 9 Oct 2026 | 16 Oct 2026 | $1,166,666 | - | - | - | 8/SP492 |
| 2 Jun 2016 | 14 Jul 2016 | $1,100,000 | - | - | - | 8/SP492 |
$1,166,666 Sold 9 Oct 2026
Settled16 Oct 2026
Beds-
Baths-
Cars-
Title reference: 8/SP492
$1,100,000 Sold 2 Jun 2016
Settled14 Jul 2016
Beds-
Baths-
Cars-
Title reference: 8/SP492
Other sales at 9 Guilfoyle Ave
The most recent sales of other units in this building. See every sale in the building.
| Beds | Baths | Cars | Title reference | ||||
|---|---|---|---|---|---|---|---|
| 2 | 3 Mar 2025 | 7 Mar 2025 | $1,300,000 | - | - | - | 2/SP492 |
| 2 | 26 Aug 2022 | 30 Sep 2022 | $1,200,000 | - | - | - | 2/SP492 |
| 2 | 27 Oct 2017 | 8 Dec 2017 | $1,025,000 | - | - | - | 2/SP492 |
| 7 | 7 Dec 2016 | 20 Jan 2017 | $1,050,000 | - | - | - | 7/SP492 |
$1,300,000 Sold 3 Mar 2025
Title reference: 2/SP492
$1,200,000 Sold 26 Aug 2022
Title reference: 2/SP492
$1,025,000 Sold 27 Oct 2017
Title reference: 2/SP492
$1,050,000 Sold 7 Dec 2016
Title reference: 7/SP492
Recent sales on Guilfoyle Ave
Sold in the last two years.
- 3/11 Guilfoyle Ave, Double Bay 2028 $7,000,000 sold 20 Apr 2026
- 7/21 Guilfoyle Avenue, Double Bay 2028 $1,500,000 sold 15 Dec 2025
- 2/11 Guilfoyle Ave, Double Bay 2028 $10,000,000 sold 10 Oct 2025
- 3/21 Guilfoyle Avenue, Double Bay 2028 $1,925,000 sold 20 Aug 2025
- 9/21 Guilfoyle Avenue, Double Bay 2028 $1,460,000 sold 10 Apr 2025
- 5/21 Guilfoyle Avenue, Double Bay 2028 $1,300,000 sold 3 Mar 2025
- 18 Guilfoyle Avenue, Double Bay 2028 $1,702,000 sold 18 Dec 2024, 158 m²
- 7/21 Guilfoyle Avenue, Double Bay 2028 $1,300,000 sold 14 Dec 2024
Recent sales nearby
Sold in the last 12 months within about 400 metres.
- 3 A/2 Knox St, Double Bay 2028 $4,950,000 sold 15 Sep 2026
- 23/337 New South Head Rd, Double Bay 2028 $2,490,000 sold 5 Sep 2026
- 12/17 Knox St, Double Bay 2028 $1,045,000 sold 21 Aug 2026
- 2/95 Darling Point Rd, Darling Point 2027 $3,300,000 sold 12 Aug 2026
- 5/28 William St, Double Bay 2028 $1,860,000 sold 7 Aug 2026
- 7/2 Marathon Rd, Darling Point 2027 $1,910,000 sold 4 Aug 2026
- 6/65 Darling Point Rd, Darling Point 2027 $1,120,000 sold 1 Aug 2026
- 10/30 William St, Double Bay 2028 $1,600,000 sold 31 Jul 2026