Duplex with Attached
New
For Sale
$569,900
1803 S 10th Ave, Caldwell, ID 83605
Residential Income, Caldwell, ID
Property Size4,358 SF
Lot Size0.38 Acres
Price / SF$130.77
Days on Market1
Property Features for 1803 S 10th Ave
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Bedrooms
5
Bathrooms
3
Full bathrooms
3
Rooms
Bathroom 3, Bedroom 3, Bathroom 2, Bedroom 5, Bedroom 4, Bedroom 2, Bathroom 1, Bedroom 1
Parking
14
Parking features
Carport
Interior features
Walk In Shower
Fireplace
1
Subdivision
DormanS Add
Lot features
10000 S F - .49, Irrigation, Sidewalks
Elementary school
Wilson
Middle school
Jefferson
High school
Caldwell
Elementary school district
Caldwell School District #132
Middle school district
Caldwell School District #132
High school district
Caldwell School District #132
Directions
West on I-84, Exit 28, S on 10th Ave, Home will be on the Left
Standard status
Active
APN
R3543500000
Size
4,358 SF
Lot size
0.38 Acres
Taxes and HOA fees
Tax Year
2025
Tax Description
Exhibit A
Tax Annual Amount
3504
Legal Description
Exhibit A
Utilities
Heating system
Natural Gas, Fireplace(s), Forced Air
Cooling system
Central Air
Amenities
covered wraparound porch
mature evergreens
covered patio
exposed-aggregate entertaining area
painted-brick fireplace
Building Details
Year built
1907
Number of units
2
Building materials
Wood Siding
Listing Agency:
Boise Premier Real Estate
(208) 639-0656
Listed By:
Holden Raulston · License #SP51197
(208) 781-1717
Added: Oct 20
Last Checked: Oct 20 at 4:06PM
MLS# 99004173
Copyright © 2026 Intermountain Multiple Listing Service. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
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Investment Insights
Based on property information with market context.
This 1907 property combines a three-bedroom, two-bathroom farmhouse with an attached legal ADU offering two bedrooms and one bathroom. The main residence includes 3,218 square feet and an office; the ADU is about 920 square feet and has updated paint, trim, and flooring. Original interior details include hardwood floors, a staircase, a brick fireplace, and a covered wraparound porch with ramp access.
The 0.38-acre parcel is fully fenced and has two driveways and a shared three-bay carport. Separate electric and water meters serve the residences. Outdoor features include mature evergreens, a covered patio, and an exposed-aggregate entertaining area. The property is across from West Valley Medical Center and is zoned H-D (Hospital District); neighboring properties have been converted to medical and professional offices.
The 0.38-acre parcel is fully fenced and has two driveways and a shared three-bay carport. Separate electric and water meters serve the residences. Outdoor features include mature evergreens, a covered patio, and an exposed-aggregate entertaining area. The property is across from West Valley Medical Center and is zoned H-D (Hospital District); neighboring properties have been converted to medical and professional offices.
Key Highlights
- 1907 farmhouse with 3,218 square feet, 3 bedrooms, 2 bathrooms, and an office
- Attached legal ADU with 2 bedrooms, 1 bathroom, and about 920 square feet
- 0.38‑acre property zoned H‑D (Hospital District)
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$26,147
Cap Rate
4.59%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$522,940
$522.9K
Cap Rate 7%
$373,529
$373.5K
Cap Rate 9%
$290,522
$290.5K
Market Conditions
NOI Build-Up for 4,358 SF
Gross rent
$38.7K $8.88/SF
− Vacancy
−$1.3K −$0.31/SF
EGI
$37.4K $8.57/SF
− OpEx
−$11.2K −$2.57/SF
NOI
$26.1K $6.00/SF
Area
Canyon County, ID
Vacancy
3.48%
Lease Rate
$8.88 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$522,940
Cap Rate 7%
$373,529
Cap Rate 9%
$290,522
Alternative Uses
Best Use
Apartment 5plus
$894.6K
$782.8K – $1.04M
NOI $62,625 @ 7.0% cap · market cap 10.99%
Second Best
Multifamily LT 5
$373.5K
$326.8K – $435.8K
NOI $26,147 @ 7.0% cap · market cap 4.59%
Theoretical Best
Office A
$1.16M
$1.02M – $1.35M
NOI $81,253 @ 7.0% cap · market cap 14.26%
Zoning and permitted uses should be independently verified with authorities.
How Realmo checks its estimates
Property Analytics
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Lease Details
2
Residential units
Yes
Utilities to site
Location Intelligence
Trade Area within ½ mile
943
Businesses Nearby
Explore this area
Business Placement
Demographics for 83605, ID
38,561
Population
14,197
Households
2.7
Avg Household Size
32
Median Age
14%
College-Educated
80%
High-School Grad
24.6 sq mi
ZIP Area
1,568
Density / Sq Mi
$60,657
Median Household Income
$31,806
Median Earnings
$973
Median Rent
$300,900
Median Home Value
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Cap Rate, Value Estimation, Potential NOI and more
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Market
Vacancy Rate% for Multifamily in West region
Frequently Asked Questions
What type of property is this?
Duplex - Two living spaces have separate electric and water meters, plus shared carport parking and two driveways.
Where is this duplex located?
The property is located at 1803 S 10th Ave Caldwell, ID.
What is the asking price?
The asking price for this property is $569,900.
What are key features of this property?
This property features: 1907 farmhouse with 3,218 square feet, 3 bedrooms, 2 bathrooms, and an office; Attached legal ADU with 2 bedrooms, 1 bathroom, and about 920 square feet; 0.38‑acre property zoned H‑D (Hospital District)
