70 Summit Ave is a 4,938 square foot house on a 0.41 acre lot with 3 bedrooms and 3 bathrooms. Based on Redfin's Mill Valley data, we estimate the home's value is $3,911,309.
Single-familyProperty Type
1989Year Built
0.41 acresLot Size
$792Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$3,911,309
$514K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 14.7% lower than the average sale price ($4.58M) of 4 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$19,203 (+0.5%)
$493,324 + $1,023,987
$1,517,311
2024
$19,117 (+1.6%)
$483,652 + $1,003,911
$1,487,563
2023
$18,809 (+2.8%)
$474,171 + $984,231
$1,458,402
2022
$18,303 (+4.0%)
$464,874 + $964,934
$1,429,808
2021
$17,606 (−10.1%)
$455,759 + $946,014
$1,401,773
2020
$19,584 (+2.5%)
$446,823 + $927,466
$1,374,289
2019
$19,103 (+0.1%)
$442,243 + $917,959
$1,360,202
2018
$19,074 (+3.8%)
$433,574 + $899,964
$1,333,538
2017
$18,373 (+4.9%)
$416,741 + $865,024
$1,281,765
2016
$17,511 (−1.8%)
$416,741 + $865,024
$1,281,765
2015
$17,827 (+5.6%)
$408,571 + $848,066
$1,256,637
2014
$16,889 (+1.5%)
$394,552 + $818,967
$1,213,519
2013
$16,633 (+5.5%)
$394,552 + $818,967
$1,213,519
2012
$15,762 (+7.7%)
$392,771 + $815,270
$1,208,041
2011
$14,639 (+2.6%)
$385,071 + $799,287
$1,184,358
2010
$14,269 (+1.8%)
$377,522 + $783,618
$1,161,140
2009
$14,023 (+4.8%)
$374,702 + $777,764
$1,152,466
2008
$13,378
$375,592 + $779,613
$1,155,205
Tax history for 70 Summit Ave
Year
Property tax
Land + Additions
Assessment*
2025
$19,203 (+0.5%)
$493,324 + $1,023,987
$1,517,311
2024
$19,117 (+1.6%)
$483,652 + $1,003,911
$1,487,563
2023
$18,809 (+2.8%)
$474,171 + $984,231
$1,458,402
2022
$18,303 (+4.0%)
$464,874 + $964,934
$1,429,808
2021
$17,606 (−10.1%)
$455,759 + $946,014
$1,401,773
2020
$19,584 (+2.5%)
$446,823 + $927,466
$1,374,289
2019
$19,103 (+0.1%)
$442,243 + $917,959
$1,360,202
2018
$19,074 (+3.8%)
$433,574 + $899,964
$1,333,538
2017
$18,373 (+4.9%)
$416,741 + $865,024
$1,281,765
2016
$17,511 (−1.8%)
$416,741 + $865,024
$1,281,765
2015
$17,827 (+5.6%)
$408,571 + $848,066
$1,256,637
2014
$16,889 (+1.5%)
$394,552 + $818,967
$1,213,519
2013
$16,633 (+5.5%)
$394,552 + $818,967
$1,213,519
2012
$15,762 (+7.7%)
$392,771 + $815,270
$1,208,041
2011
$14,639 (+2.6%)
$385,071 + $799,287
$1,184,358
2010
$14,269 (+1.8%)
$377,522 + $783,618
$1,161,140
2009
$14,023 (+4.8%)
$374,702 + $777,764
$1,152,466
2008
$13,378
$375,592 + $779,613
$1,155,205
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jan 14, 2026 • Final
Residential ev charger
Install a new electric vehicle charger.
Electrical
Ev charger
Dec 8, 2022 • Final
Residential plan check
Construct a new residential swimming pool and remove the existing pool.
Grading
Pool and hot tub
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: Excellent
Pool Information
Has Pool
Property Information
Subdivision Name: TL & W CO MILL VLY
Living Sq. Ft: 4,938
Building Sq. Ft: 4,938
# of Units: 1
Legal Description: PARCEL MAPS 23 PG 27 BLK 6 PART OF LOT 24,23
Parking & Garage Information
Garage/Parking Sq. Ft: 984
Lot Information
# of Buildings: 1
Land Sq. Ft: 17,856
Legal Lot Number: 24
Legal Block Number: 6
Municipality Name: MILL VALLEY
Acres: 0.4099
County Use Description: 1 FAMILY RESID
Financial
Assessor Information
Assessment Year: 2026
Tax Area: MILL VALLEY
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 4,938
Stories: —
Lot Size: 0.41 acres
Style: Single Family Residential
Year Built: 1989
Year Renovated: 1989
County: Marin County
APN: 028-052-30
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Old Mill Elementary School
Public K-5 • Assigned • 0.1mi
10/10
Mill Valley Middle School
Public 6-8 • Assigned • 1.4mi
9/10
Tamalpais High School
Public 9-12 • Assigned • 1.8mi
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
2/10 Fire Factor
0.00% chance of being in a wildfire in next 30 years
3/10 Heat Factor
9 days above 83° expected this year, 20 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
7/10 Air Factor
12 unhealthy days expected this year, 12 days in 30 years
Provided by First Street
Historical weather
Mill Valley, CA • 94941
Average low and high temperatures (°F)
59
47
60
48
66
50
64
48
69
51
69
52
70
54
76
56
73
58
72
55
61
50
56
47
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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
$3.72M – $4.50M
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