Property Record
20 Sunnyside Ave, Mill Valley, CA 94941
Current Lease Availabilities
Property Detail
20 Sunnyside Ave
San Rafael, CA
MAP D3 606
028-065-01
Marin
Commercialnec
California
B and X Area of moderate flood hazard, usually the area between the limits of the 100-year and 500-year floods.
1-3
2025
0.28 AC
2025
Corte Madera/Mill Valley
127000
North Bay/Santa Rosa
7,434 SF
NEARBY LISTINGS FOR SALE OR LEASE
DEMOGRAPHICS near 20 Sunnyside Ave
1 mile
3 mile
5 mile
2025 Total Population
11,410
55,170
111,782
2030 Population
11,269
54,557
110,426
Pop Growth 2025-2030
(1.24%)
(1.11%)
(1.21%)
Average Age
45
46
44
2025 Total Households
4,589
23,238
45,329
HH Growth 2025-2030
(1.31%)
(1.12%)
(1.17%)
Median Household Inc
$221,340
$192,881
$153,500
Avg Household Size
2.40
2.30
2.40
2025 Avg HH Vehicles
2.00
2.00
2.00
Median Home Value
$1,136,141
$1,129,767
$1,125,058
Median Year Built
1953
1964
1964
Nearby Places
Map Layers
Map Styles
Street
Aerial
Layers
Transit
Traffic
Biking
Places
Listings with unknown addresses are not visible on the map
- Restaurants
- Banks
- Shops
- Fitness
- Groceries
PUBLIC TRANSPORTATION
COMMUTER RAIL
Drive
Walk
Distance
10 min
5.5 mi
Drive
Walk
Distance
12 min
7.5 mi
AIRPORT
San Francisco International
Drive
Walk
Distance
San Francisco International
45 min
27.4 mi
Metro Oakland International
Drive
Walk
Distance
Metro Oakland International
50 min
35.1 mi
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Zoning
Address
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TOTAL SIZE
Lot Size
Zoning
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15.87 AC
Address
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14.21 AC
Address
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4.51 AC
Address
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Address
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Zoning
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3.15 AC
Address
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4.31 AC
Address
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109,944 SF
5.73 AC
Address
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64,780 SF
50 AC
Address
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Zoning
110,272 SF
10.69 AC
Address
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218,521 SF
26.79 AC
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TOTAL SIZE
Lot Size
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127,504 SF
8.49 AC
Address
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TOTAL SIZE
Lot Size
Zoning
79,995 SF
3.15 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
72,870 SF
3.51 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
234,922 SF
6 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
97,410 SF
5.97 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
54,189 SF
4.80 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
41,040 SF
3.15 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
189,422 SF
7.67 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
100,000 SF
6.30 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
65,933 SF
3.11 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
23,156 SF
3.71 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
175,802 SF
10.87 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
159,300 SF
23.62 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
25,371 SF
2.15 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
74,993 SF
0.78 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
66,128 SF
4.02 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
51,474 SF
3.69 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
92,278 SF
49.10 AC
Address
Land Use
TOTAL SIZE
Lot Size
Zoning
36,566 SF
3.84 AC
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© 2026 CoStar Group
The information above has been obtained from sources believed reliable. While we do not doubt its accuracy we have not verified it and make no guarantee, warranty or representation about it. It is your responsibility to independently confirm its accuracy and completeness. Any projections, opinions, assumptions, or estimates used are for example only and do not represent the current or future performance of the property. The value of this transaction to you depends on tax and other factors which should be evaluated by your tax, financial, and legal advisors. You and your advisors should conduct a careful, independent investigation of the property to determine to your satisfaction the suitability of the property for your needs.