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3400 Walnut Street, Denver, CO 80205

Office building with 108,410 square feet available for rent.

Space Size4,178 SF - 28,304 SF
Days on Market329

Property Features for 3400 Walnut Street

General Information

Standard status Active
Size 4,178 SF - 28,304 SF
Property subtype Office

Spaces For Lease

at 3400 Walnut Street Contact us

Suite 250 Available

Size 4,178 SF
Type Office
Brand new spec suite at Paradigm River North 6 offices/huddle rooms, conference room, collaboration area, open breakroom, open area and 2 phone rooms.
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Suite 500 Available

Size 28,279 SF
Type Office
Full floor available at Paradigm River North. Shell condition. Ready for Tenant Improvements. Contiguous with 4th floor for up to 56,500 SF.
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Suite 400 Available

Size 28,304 SF
Type Office
Full floor available at Paradigm River North. Shell condition. Ready for Tenant Improvements. Contiguous with 5th floor for up to 56,500 SF.
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Suite 330 Available

Size 9,950 SF
Type Office
New spec suite underway at Paradigm River North. 15 offices/huddle rooms, 2 conference rooms, open breakroom with private terrace, 2 phone rooms, reception, storage and open areas.
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Listing Agency: CBRE | Denver
Listed By: Sarajane Goodfellow
Source: Cbre
Added: Nov 22, 2025 Changed: Oct 2 Last Checked: Oct 16 at 6:40AM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of CBRE | Denver

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Investment Insights

Based on property information with market context.

An office building located in Denver, Colorado, offers 108,410 square feet of space available for rent. The property is situated at 3400 Walnut Street, Denver, CO, 80205.

Key Highlights

  • 108,410 square feet of office space available
  • Office building for rent

Property Analytics

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Open Analytics

Current Use

Paradigm River North Corporate Office Blink Charging Station Electric Vehicle Charging Station

Suggested Use

Top Pick Pharmacy Auto Parts Store Florist (Bike/Boat/Book/etc) Store Pet Grooming Service Nursing Home

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

NNN (Triple Net)
Lease Type

Location Intelligence

Trade Area within ½ mile

2,585
Businesses Nearby

Demographics for 80205, CO

34,967
Population
19,040
Households
1.8
Avg Household Size
34
Median Age
61%
College-Educated
94%
High-School Grad
4.6 sq mi
ZIP Area
7,602
Density / Sq Mi
$98,770
Median Household Income
$69,760
Median Earnings
$1,816
Median Rent
$627,600
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Lease Benchmarks for Denver, CO

$27.87 /SF/Yr
Avg Asking Price
$13–$42 /SF/Yr
Price Range
57,101 SF
Avg Space Size

Vacancy Rate% for Office in Denver, CO

14.5% 2019
17.4% 2020
19.3% 2021
21.8% 2022
23% 2023
25% 2024
26.3% 2025

Frequently Asked Questions

What type of property is this?
Office building - Office building with 108,410 square feet available for rent.
Where is this office building located?
The property is located at 3400 Walnut Street Denver, CO.
What are key features of this property?
This property features: 108,410 square feet of office space available; Office building for rent
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