The Northwestern Building, a 98,670-square-foot, nine-story office building located at 275 4th Street E, Saint Paul, MN 55101, presents a unique investment opportunity. Built in 1916 and renovated in 1923, this Class C building is listed on the National Register of Historic Places and offers a blend of traditional and creative office spaces. The building features 130 total suites, with 18 currently available, ranging from 336 to 2,419 contiguous square feet. The maximum contiguous space available is 2,419 square feet. Amenities include two passenger and freight elevators, high-speed internet, 24/7 tenant access, and a convenient on-site dessert restaurant. Several suites can be combined to accommodate larger tenants' needs, potentially including kitchenettes. The 0.32-acre property is zoned B5 and boasts high ceilings and large windows offering views of downtown Saint Paul. Its prime Lowertown location provides easy access to I-94 and the I-94/I-35 interchange, placing it within close proximity to CHS Field, Xcel Energy Center, Regions Hospital, M Health Fairview St. Joseph's, and the Minnesota State Capitol. Lowertown's vibrant atmosphere, featuring repurposed warehouses now housing event spaces, art galleries, and restaurants, adds to the building's appeal. This property offers a compelling combination of historic charm, modern amenities, and a strategic location in the heart of Saint Paul's thriving Lowertown district. The APN is 32-29-22-33-0053. Currently, 18,215 square feet of space is vacant.
Property Features for 0 4Th St
General Information
Property type
Office space
Lease Type
Gross Lease
RSF (Rentable sq. ft)
98,670 SF
Class
C
Total Rate
61915.42
Building Details
Year Built/Renovated
1916/1923
Buildings
1
Stories
9
Unit(s) available at that property
Space
Suite 200
Size
2,419 SF
Rate per SF
$17
Space
Suite 370
Size
406 SF
Rate per SF
$14
Space
Suite 380
Size
1,213 SF
Rate per SF
$15
Space
Suite 520
Size
745 SF
Rate per SF
$17
Space
Suite 697
Size
466 SF
Rate per SF
$18
Space
Suite 801
Size
542 SF
Rate per SF
$18
Space
Suite 802
Size
1,122 SF
Rate per SF
$20
Space
Suite 803
Size
576 SF
Rate per SF
$22
Space
Suite 804
Size
547 SF
Rate per SF
$21
Space
Suite 813
Size
484 SF
Rate per SF
$20
Space
Suite 625
Size
558 SF
Rate per SF
$20
Space
Suite 818/819
Size
468 SF
Rate per SF
$21
Space
Suite 510
Size
971 SF
Rate per SF
$17
Space
Suite 400
Size
1,506 SF
Rate per SF
$16
Space
Suite 781
Size
336 SF
Rate per SF
$21
Space
Suite 430
Size
408 SF
Rate per SF
$18
Space
Suite 696
Size
343 SF
Rate per SF
$19
Space
Suite 900
Size
1,338 SF
Rate per SF
$7
HighLights
98,670 SF, nine‑story Class C office building in Saint Paul, MN.
Historic building listed on the National Register of Historic Places, offering 130 suites (18 currently available, 336‑2,419 SF contiguous).
Prime Lowertown location near I‑94/I‑35 interchange, CHS Field, Xcel Energy Center, and major hospitals.
Amenities include two elevators, high‑speed internet, 24/7 access, and an on‑site restaurant.
18,215 SF currently vacant; potential for larger tenant spaces by combining suites.
Office space - 9-Story Office, 18 Suites Available
Where is this office space located?
The property is located at 4Th St Saint Paul, MN.
What is the lease rate?
The lease rate is $7-$22 SF/Yr.
What are key features of this property?
This property features: 98,670 SF, nine-story Class C office building in Saint Paul, MN.; Historic building listed on the National Register of Historic Places, offering 130 suites (18 currently available, 336-2,419 SF contiguous).; Prime Lowertown location near I-94/I-35 interchange, CHS Field, Xcel Energy Center, and major hospitals.
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4Th St Saint Paul, MN 55101
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Realmo Value Estimations
Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods.
Disclaimer
These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.
AI approach
Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.
Realmo CapRate Calculation
Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.
How We Calculate Cap Rate
Cap Rate Formula: Cap Rate (%) = (Net Operating Income / Property Value) × 100
Net Operating Income (NOI) Formula: NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)
Components
Net Operating Income (NOI) represents the annual income a property generates after operating expenses:
Area: Building square footage from property records
Lease Rate: Annual $/sqft based on market data for the property type and geographic location
Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
Operating Expense Ratio: Operating costs as a percentage of income, varies by property type
Property Value is derived from:
Recent sale price (if available)
Statistical models using comparable sales
AI-powered valuation estimates
Example Calculation
For a 100,000 sqft Office Building:
Lease Rate: $25.00/sqft/year (market data for Office in this area)
Vacancy Rate: 8% (market data for Office in this area)
Operating Expense Ratio: 35% (typical for Office properties)
Property Value: $15,000,000
Step 1: Calculate NOI
NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35) NOI = 100,000 × $25.00 × 0.92 × 0.65 NOI = $1,495,000/year
Step 2: Calculate Cap Rate
Cap Rate = ($1,495,000 / $15,000,000) × 100 Cap Rate = 9.97%
Property Type Considerations
Net Operating Income calculations vary by property type due to different operating expense ratios:
Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
Retail: Moderate expenses (25-35%) for common area maintenance
Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
Multifamily: Moderate expenses (35-45%) including property management
Self-Storage: Lower expenses (25-35%) due to minimal maintenance
Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.
Disclaimer
These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.
Cap Rate calculations depend on market data that may change over time
Actual operating expenses, lease rates, and vacancy rates may differ from market averages
Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
Property value estimates are approximations and not official appraisals
Cap rates vary widely by market, property condition, and investment risk profile
Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.
Cap approach
Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.
Comparable approach
Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.
Relative
Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.
Geo
Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels
across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.
Stat Estimate
This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.
Ranges - area data calculated by industry standard IQR Outlier Removal Method
Range-from: 75% of all similar sales ($/sqft) are above this value
Range-to: 75% of all similar sales ($/sqft) are below this value
AI Estimate
This method estimates value based on AI market estimation of comparable properties around by location and property type.
Ranges - area data calculated by industry standard IQR Outlier Removal Method
Range-from: 75% of all estimations ($/sqft) are above this value
Range-to: 75% of all estimations ($/sqft) are below this value
Alternative use
Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.
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4Th St Saint Paul, MN 55101
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4Th St, Saint Paul, MN
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