Rarely does a property like this exist within city limits. Set on 1.48 acres on Petaluma's coveted West Side, this urban estate traces its roots to a late 1800s farm, since reimagined into something unlike anything else in the city. Quietly situated behind an unassuming gate and mature natural vegetation, the property is nearly unnoticeable from the street above. Conceived by the owner with a landscape designer's eye, the grounds are a study in cultivated wilderness, where modern design and natural habitat are in complete balance. The main residence was taken to the studs, expanded, and rebuilt with timeless selections that honor the original architecture. At approximately 1,766 square feet with two bedrooms and two bathrooms, the single level home is defined by natural light, with an abundance of windows and glass doors that frame the surrounding landscape at every turn. The floor plan flows intuitively from one space to the next, with each room feeling distinct and considered. White Oak floors and hand-selected lighting carry a quiet, understated luxury throughout. The kitchen was purpose-built for the serious cook, anchored by a 9.5-foot Carrara marble island, Dura Supreme cabinetry, and a Viking six-burner range with an industrial hood. The detached approximately 591 square foot 1 bedroom, 1 bathroom guest suite offers privacy and its own sense of place, with high ceilings, refinished oak floors, a kitchenette, and French doors opening to the property. Adjoining it is a party barn built by a master Bavarian craftsman using traditional timber frame construction, with soaring cathedral ceilings and oversized barn doors that open the space entirely to the outdoors. A custom stone patio anchors the outdoor living area, complemented by a poured-in-place concrete fire pit, board-formed concrete retaining walls, raised vegetable beds, and a generous flat lawn. The perimeter has been left intentionally wild, preserving privacy, animal habitat, and the rare feeling of a true private oasis within city limits. 555 Magnolia Avenue is a legacy property saved, restored, and ready for its next steward, all within minutes of downtown Petaluma.
Single-familyProperty Type
1949Year Built
1.48 acresLot Size
$1,402Price/Sq.Ft.
4 garage spacesParking
Listed by Timothy Hedges•DRE #01368460• Vanguard Properties
•707-696-7325 (agent)
•timothy@vanguardsonoma.com (agent)
Listed by Ross Bostock•DRE #02224710• Vanguard Properties
Est. $4,012 per month, based on comparable rentals
Sale and tax history for 555 Magnolia Ave
Sale History
Tax History
Date
Event
Price
BAREIS #326047769
Jun 26, 2026
Sold
$3,304,000
$1,402/sq ft
Jun 16, 2026
Pending
—
Jun 4, 2026
Listed
$2,750,000
$1,167/sq ft
BAREIS #21517573
Aug 21, 2015
Sold
$954,000
$405/sq ft
Aug 13, 2015
Pending
—
Jul 30, 2015
Contingent
—
Jul 21, 2015
Listed
$829,000
$352/sq ft
1.48 acres with 1326+/- sf 3/1 home built in 1949, on a rare sub-dividable lot in town, west Petaluma. Zoned R2, this land could be enjoyed as a Gentlemen's farm'', or subdivided & developed! With the convenience of city sewer & water, plus an artesian spring well to water the incredible diversity of plant species,(timber bamboo, exotic roses, fruit trees & more!) in addition to the seasonal creek, one can create the best of all worlds!
Year
Property tax
Land + Additions
Assessment*
2025
$14,833 (+7.4%)
$833,388 + $458,463
$1,291,851
2024
$13,813 (+1.8%)
$833,388 + $458,463
$1,291,851
2023
$13,563 (+0.9%)
$817,048 + $449,474
$1,266,522
2022
$13,446 (+2.0%)
$801,028 + $440,661
$1,241,689
2021
$13,188 (+5.0%)
$785,322 + $432,021
$1,217,343
2020
$12,556 (+1.3%)
$769,924 + $423,550
$1,193,474
2019
$12,401 (+4.6%)
$762,030 + $352,208
$1,114,238
2018
$11,859 (+3.7%)
$747,089 + $345,302
$1,092,391
2017
$11,435 (+376.7%)
$718,080 + $274,000
$992,080
2015
$2,399 (+0.5%)
$704,000 + $250,000
$954,000
2014
$2,388 (+3.8%)
$129,957 + $64,975
$194,932
2013
$2,301 (+2.2%)
$129,957 + $64,975
$194,932
2012
$2,251 (+1.9%)
$129,370 + $64,682
$194,052
2011
$2,209 (+5.0%)
$126,834 + $63,414
$190,248
2010
$2,104 (−0.6%)
$124,348 + $62,171
$186,519
2009
$2,116 (+1.8%)
$123,419 + $61,707
$185,126
2007
$2,079
$121,288 + $60,642
$181,930
Public record
Public record
Zoning
Beds
2
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
1.48 Acres
Year renovated
1990
Sq. Ft.
1,766
Year built
1949
Style
Single Family Residential
County
Sonoma County
APN
006402011000
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 10, 2026.
R2
Residential 2 Zone
The R2 zone is applied to areas previously developed and intended for detached single dwellings on individual lots, at densities ranging from 2.6 to 8.0 units per acre. The R2 zone is consistent with and implements the low density residential land use classification of the general plan.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Senior
Lodging & hospitality
Fire house
Police station
Park & open space
Property details
Parking
Parking & Garage Information
Parking Total: 5
Parking Features: Garage Facing Front
Garage Spaces: 4
Interior
Bathroom Information
# of Bathrooms (Total): 3
# of Bathrooms (Full): 3
Master Bathroom Features: Double Sinks, Shower Stall(s), Tub w/Shower Over
Other Bathroom Features: Tub w/Shower Over
Bedroom Information
# of Bedrooms (Total): 3
Master Bedroom Features: Ground Floor
Heating & Cooling
Cooling: Ceiling Fan(s)
Heating: Central
Interior Features
Appliances: Built-In Gas Range, Double Oven, Free Standing Gas Range, Free Standing Refrigerator, Hood Over Range, Wine Refrigerator
Fireplaces Total: 1
Fireplace Features: Gas Starter, Insert
Flooring: Tile, Wood
Interior Features: Cathedral Ceiling
Laundry Features: Hookups Only
# of Stories: 1
Room Information
Room Types: Guest Quarters, Living Room, Office
Basement: None
Dining Room Features: Space in Kitchen
Kitchen Features: Island, Marble Counter
Living Room Features: Cathedral/Vaulted
Levels: One
Main Level: Bedroom(s), Full Bath(s), Garage, Kitchen, Living Room
Exterior
Exterior Features
Patio And Porch Features: Front Porch, Uncovered Deck
Allows Horses: No
Fencing: Full
Roof: Composition
Pool Information
Has Private Pool: No
Has Spa: No
Property Information
ADU 2nd Unit: Yes
Property Condition: Updated/Remodeled
Property Type: Residential
Property Sub Type: Single Family Residence
Lot Information
Lot Size Square Feet: 64,469
Lot Size Acres: 1.48
Lot Size Source: Assessor Auto-Fill
Lot Features: Shape Regular
Power Production Information
Type: None
Size: 0.00
Year Install: 0
Utilities
Utilities Information
Sewer: Public Sewer
Location
HOA Information
Association YN: No
Community Information
Senior Community: No
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 1,766
Stories: 1.0
Lot Size: 1.48 acres
Style: Single Family Residential
Year Built: 1949
Year Renovated: 1990
County: Sonoma County
APN: 006402011000
Home facts updated by county records on Jul 10, 2026