18 Hillcrest Rd is a 4,369 square foot house on a 0.38 acre lot with 5 bedrooms. - it last sold on April 14, 2026 for $5,500,000. Based on Redfin's Mill Valley data, we estimate the home's value is $6,332,129.
Single-familyProperty Type
1937Year Built
0.38 acresLot Size
$1,449Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$6,332,129
$832K since sold in April 2026$241K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 78.4% higher than the average sale price ($3.55M) of 4 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Apr 6, 2027 • Active
Residential sewer lateral
Replace the residential sewer lateral.
Plumbing
Mar 16, 2021 • Final
Residential furnace without condenser
Replace the furnace and air conditioning unit in a residential building.
HVAC
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Heating & Cooling
Heating Type: Central
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Building Style Type: Contemporary
Building Construction Quality: Good
Pool Information
Has Pool
Property Information
Subdivision Name: BOYLE PARK 01
Living Sq. Ft: 4,369
Building Sq. Ft: 4,369
# of Units: 1
Legal Description: BLK O PART OF LOT 1-3
Parking & Garage Information
Garage/Parking Sq. Ft: 873
Lot Information
# of Buildings: 1
Land Sq. Ft: 16,645
Legal Lot Number: 1
Legal Block Number: O
Municipality Name: MILL VALLEY
Acres: 0.3821
County Use Description: 1 FAMILY RESID
Financial
Assessor Information
Assessment Year: 2026
Tax Area: MILL VALLEY
Public facts
Beds: 5
Baths: 4.0
Sq. Ft.: 4,369
Stories: —
Parking Spaces: —
Basement: No
Accessible: No
Lot Size: 0.38 acres
Style: Single Family Residential
Year Built: 1937
Year Renovated: 1971
County: Marin County
APN: 029-124-35
HOA Dues: —
Garage: No
Features: —
Home facts updated by owner on Jun 16, 2026
Around this home
Schools
Park Elementary School
Public K-5 • Assigned • 0.3mi
10/10
Mill Valley Middle School
Public 6-8 • Assigned • 0.9mi
9/10
Tamalpais High School
Public 9-12 • Assigned • 1.4mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
2/10 Heat Factor
8 days above 83° expected this year, 19 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
13 unhealthy days expected this year, 13 days in 30 years
Provided by First Street
Historical weather
Mill Valley, CA • 94941
Average low and high temperatures (°F)
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48
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76
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74
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72
55
61
50
56
47
Jan
Feb
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Sun exposure
In this area, properties receive around 10.6 hours in
June and 5 hours in December, placing it above the
U.S. average for solar exposure.
10.6 hrs
5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$6.02M – $7.28M
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