Duplex

Rock Falls, IL Duplexes for Sale

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Sterling, IL Dixon, IL Deer Grove, IL Morrison, IL Tampico, IL Prophetstown, IL Polo, IL Ohio, IL
Brick Duplex with Full Basement
Updated: Aug 27
Brick Duplex with Full Basement

304 8th Avenue, Rock Falls, IL 61071

$130,000
Two 1‑bedroom, 1‑bath units in a brick duplex
Full basement with shared washers and dryers
Separate utilities; tenants pay their own utility expenses
New roof installed July 2026; water heaters updated in 2025
Fenced backyard with garage parking
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Renovated Duplex with Laundry
Updated: Aug 20
Renovated Duplex with Laundry

Rock Falls, IL 61071

$139,900
Main‑level unit remodeled with new plumbing, electrical, kitchen, furnace, central air, bathroom, flooring, and windows
In‑unit main‑floor laundry
New sewer line identified for 2026
Built in 1925
Natural gas, electric service, and forced‑air systems
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Duplex with Detached Garage
Duplex with Detached Garage

510 11th Ave, Rock Falls, IL 61071

$160,000

Two-unit property combines refreshed lower-level finishes with month-to-month occupancy upstairs.

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Side-by-Side Duplex
Side-by-Side Duplex

Rock Falls, IL 61071

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The building requires substantial renovation and is being offered in its current condition.

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Based on your search, we've compiled 8 Potential Opportunities for your consideration. Besides 4 Active listings in Rock Falls, IL, we suggest exploring several alternatives: 4 properties in Nearby Cities

Opportunities in Nearby Cities

Here are 4 Similar properties we found in Nearby Locations for your consideration.

Two-Unit Duplex with Wraparound Porch
Two-Unit Duplex with Wraparound Porch

402 S Ottawa Avenue, Dixon, IL 61021

$169,000
0.15 AC lot

Occupied units provide separate laundry areas, flexible bedroom layouts, and a detached garage for residential use.

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Modern Duplex
Modern Duplex

1012 W 4th Street, Sterling, IL 61081

$141,000

Two-unit residential property with matching layouts, natural gas service, and forced-air heating.

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Duplex with Separate Utilities
Duplex with Separate Utilities

1004 Hemlock Avenue, Dixon, IL 61021

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Two 3-bedroom units each with in-unit laundry, eat-in kitchens, and independent HVAC and utilities.

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Two-Unit Duplex with Basement
Two-Unit Duplex with Basement

506 Ave F, Sterling, IL 61081

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Upstairs and downstairs residences each offer two bedrooms and one bathroom, with the lower unit including basement laundry.

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Rock Falls, IL Duplexes Market Trends and Statistics

Explore 4 duplexes for sale in Rock Falls, IL, showcased through 4 active listings on our real estate platform.

Sale prices for duplexes in Rock Falls, IL start at $130,000, averaging $143,300, and reaching up to $160,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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Top Commercial Asset Segments

Commercial property segments ranked by active listings on the market

Duplexes 4
Mobile home & RV parks 1

Demographics Overview

Population 13K
Population Growth (5Y) -3.7%
Median Household Income $57,909
College Educated 22.8%

High-Yield Neighborhoods for Investment

Identify Rock Falls submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

Neighborhood Average Price
61071 $140K

Taxes & Financing

Tax Rate (average for all types) 10.35%
Tax Rate vs County Average 1.73 pp above county avg
Average Loan-to-Value 65.0%

Listings Trend

New vs delisted commercial listings in Whiteside County

New Delisted

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