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Updated Duplex with Rental Unit
New
For Sale
$1,695,000

288-290 Miller Avenue, Mill Valley, CA 94941

Residential Income, Mill Valley, CA

Property Size1,948 SF
Lot Size0.12 Acres
Price / SF$870.12
Days on Market5

Property Features for 288-290 Miller Avenue

General Information

Property type Residential Multi Family
Property subtype Duplex
Bedrooms 4
Bathrooms 3
Full bathrooms 3
Rooms Bathroom 2, Bathroom 1, Bedroom 3, Bedroom 4, Bedroom 1, Bathroom 3, Bedroom 2
Parking 3
Lot features Landscape Back, Landscape Front
Elementary school district Marin
Middle school district Marin
High school district Marin
Directions 101 to Blithedale exit, left on Camino Alto, left onto Miller.
Subdivision Mill Valley
Standard status Active
APN 02821303
Size 1,948 SF
Lot size 0.12 Acres

Utilities

Sewer type Public Sewer
Heating system Central
Water source Public

Amenities

attached garage
dedicated laundry
back deck
low-maintenance yard

Building Details

Year built 1952
Number of units 2
Listing Agency: Golden Gate Sotheby's International Realty
Listed By: Jennie M Hooker
Added: Aug 19 Last Checked: Aug 23 at 4:06PM
MLS# 326070737

Copyright © 2026 Bay Area Real Estate Information Services, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

This 1,948-square-foot duplex includes a primary residence with three bedrooms, two full bathrooms, original hardwood flooring, and updated interior finishes. The home connects to a rear deck and low-maintenance yard, while a separate one-bedroom, one-bath residence provides an independently configured second living space. Each residence has its own laundry, utility meter, and heating system, supporting distinct household or rental use. An attached garage is also included.

Built in 1952 on a 0.122-acre parcel in Mill Valley, the property is served by public water and public sewer. Its setting provides access to downtown shops, cafes, restaurants, the Lumber Yard, parks, and nature trails, with Highway 101 access for travel toward San Francisco.

Key Highlights

  • 1,948 SF duplex on a 0.122‑acre lot
  • Main residence includes 3 bedrooms and 2 full baths
  • Separate 1‑bedroom, 1‑bath residence

Financial Insights

Estimated NOI and Cap Rate

NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$65,385
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
3.86%
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,307,700 $1.3M
Cap Rate 7%
$934,071 $934.1K
Cap Rate 9%
$726,500 $726.5K
Market Conditions
NOI Build-Up for 1,948 SF Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent. EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs. OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements. NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$99.3K $51.00/SF
− Vacancy
−$5.9K −$3.05/SF
EGI
$93.4K $47.95/SF
− OpEx
−$28.0K −$14.39/SF
NOI
$65.4K $33.57/SF
Area
Marin County, CA
Vacancy
5.98%
Lease Rate
$51.00 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,307,700
Cap Rate 7%
$934,071
Cap Rate 9%
$726,500

Alternative Uses

Best Use
Multifamily LT 5
$934.1K
$817.3K – $1.09M (±1% cap)
NOI $65,385 @ 7.0% cap · market cap 3.86%
Second Best
Apartment 5plus
$403.1K
$352.7K – $470.3K (±1% cap)
NOI $28,219 @ 7.0% cap · market cap 1.66%
Theoretical Best
Specialty Retail
$9.52M
$8.33M – $11.10M (±1% cap)
NOI $666,063 @ 7.0% cap · market cap 39.30%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick HVAC Service (Bike/Boat/Book/etc) Store Catering Service Grocery & Convenience Store Pet Grooming Service Parking Lot & Garage

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

2
Residential units
Yes
Highway access
Yes
Utilities to site

Location Intelligence

Trade Area within ½ mile

1,812
Businesses Nearby

Demographics for 94941, CA

31,480
Population
13,860
Households
2.3
Avg Household Size
47
Median Age
77%
College-Educated
99%
High-School Grad
37.7 sq mi
ZIP Area
835
Density / Sq Mi
$210,217
Median Household Income
$100,535
Median Earnings
$2,949
Median Rent
$1,990,100
Median Home Value

Market

Vacancy Rate% for Multifamily in West region

7% 2022
7.8% 2023
8.6% 2024
8.6% 2025
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Two independent residences support owner occupancy, rental use, or flexible multigenerational living arrangements.
Where is this duplex located?
The property is located at 288-290 Miller Avenue Mill Valley, CA.
What is the asking price?
The asking price for this property is $1,695,000.
What are key features of this property?
This property features: 1,948 SF duplex on a 0.122‑acre lot; Main residence includes 3 bedrooms and 2 full baths; Separate 1‑bedroom, 1‑bath residence
More about this property
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