Duplex With Attached
For Sale
$1,595,000
3692 Sundale, Lafayette, CA 94549
Residential Income, Lafayette, CA
Property Size3,282 SF
Lot Size0.23 Acres
Price / SF$485.98
Days on Market95
Property Features for 3692 Sundale
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Bedrooms
6
Bathrooms
4
Full bathrooms
4
Rooms
Bedroom 6, Bathroom 1, Bedroom 1, Bedroom 2, Bedroom 5, Bathroom 3, Bedroom 3, Bedroom 4, Bathroom 4, Bathroom 2
Parking features
Open
Window features
Double Pane Windows
Interior features
Storage
Exterior features
Back Yard
Fireplace
1
Appliances
Dishwasher
Lot features
Corner Lot
Directions
Mt Diablo to Village Center. Left on Sundale to top of hill...
Subdivision
Listing
Standard status
Active
Size
3,282 SF
Lot size
0.23 Acres
Utilities
Sewer type
Public Sewer
Heating system
Gravity
Cooling system
Wall/Window Unit(s), Central Air, Window Unit(s)
Water source
Public
Building Details
Year built
1955
Number of units
2
Flooring type
Hardwood, Laminate
Roof type
Composition
Additional Structures
Storage
Listing Agency:
RE/MAX Accord · RE/MAX International
(925) 283-9200
Listed By:
Jeff Auen · License #01244711
(925) 260-6563
Added: May 28
Changed: Aug 20
Last Checked: Aug 30 at 2:06AM
MLS# 41136362
Copyright © 2026 Contra Costa Association of REALTORS®. 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 Lafayette duplex includes a 2,430-square-foot primary residence with 4 bedrooms and 2.5 baths, plus an attached 854-square-foot apartment configured with 2 bedrooms and 1 bath. Interior updates include new paint, flooring, inset lighting, and bathroom improvements completed from 2022 to 2026. Hardwood flooring appears on the upper level of the main home and throughout the apartment. The property also offers storage, a fireplace, public water and sewer, and two attached garages.
Set on 0.2296 acres at 3692 Sundale, the property is in Sunset Village near Lafayette Reservoir, with downtown Lafayette and freeway access described as minutes away. The lower driveway includes off-street parking with room for 8 cars or an RV or boat. The address is in Contra Costa County, California, within ZIP Code 94549.
Set on 0.2296 acres at 3692 Sundale, the property is in Sunset Village near Lafayette Reservoir, with downtown Lafayette and freeway access described as minutes away. The lower driveway includes off-street parking with room for 8 cars or an RV or boat. The address is in Contra Costa County, California, within ZIP Code 94549.
Key Highlights
- 2,430 SF main residence with 4 bedrooms and 2.5 baths
- Attached 854 SF apartment with 2 bedrooms and 1 bath
- Interior refresh includes paint, flooring, inset lighting, and bathroom upgrades from 2022 to 2026
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
$56,191
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
3.52%
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%
$1,123,820
$1.1M
Cap Rate 7%
$802,729
$802.7K
Cap Rate 9%
$624,344
$624.3K
Market Conditions
NOI Build-Up for 3,282 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
$84.7K $25.80/SF
− Vacancy
−$4.4K −$1.34/SF
EGI
$80.3K $24.46/SF
− OpEx
−$24.1K −$7.34/SF
NOI
$56.2K $17.12/SF
Area
Contra Costa County, CA
Vacancy
5.20%
Lease Rate
$25.80 /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%
$1,123,820
Cap Rate 7%
$802,729
Cap Rate 9%
$624,344
Alternative Uses
Best Use
Multifamily LT 5
$802.7K
$702.4K – $936.5K
NOI $56,191 @ 7.0% cap · market cap 3.52%
Second Best
Apartment 5plus
$745.3K
$652.2K – $869.5K
NOI $52,172 @ 7.0% cap · market cap 3.27%
Theoretical Best
Office A
$1.24M
$1.09M – $1.45M
NOI $86,842 @ 7.0% cap · market cap 5.44%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
1,816
Businesses Nearby
Explore this area
Business Placement
Demographics for 94549, CA
28,637
Population
10,781
Households
2.7
Avg Household Size
45
Median Age
77%
College-Educated
99%
High-School Grad
19.8 sq mi
ZIP Area
1,446
Density / Sq Mi
$231,195
Median Household Income
$118,465
Median Earnings
$2,902
Median Rent
$1,968,500
Median Home Value
Market
Vacancy Rate% for Multifamily in West region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Duplex - Main residence and accessory apartment support flexible rental, household, or home-office arrangements.
Where is this duplex located?
The property is located at 3692 Sundale Lafayette, CA.
What is the asking price?
The asking price for this property is $1,595,000.
What are key features of this property?
This property features: 2,430 SF main residence with 4 bedrooms and 2.5 baths; Attached 854 SF apartment with 2 bedrooms and 1 bath; Interior refresh includes paint, flooring, inset lighting, and bathroom upgrades from 2022 to 2026
