Entity Owned 
For Lease
Contact for pricing
1345 W Mason St, Green Bay, WI 54303
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Property summary
AI-generated overview
The Heritage Building, located at 1345 W. Mason St. in Brown County, offers exceptional office space for lease. This two-story, 22,962 square foot building, constructed in 1976, sits on a 9.43-acre lot and is currently undergoing significant improvements under new ownership. The property is classified as Class C and features a single building with multiple tenancies available. Spaces range from a minimum of 275 square feet to a maximum contiguous space of 2,800 square feet, providing flexibility for businesses of various sizes. Upper-level suites boast abundant natural light from numerous windows, and some include built-in sinks. These spaces offer diverse layouts, ranging from open-plan areas to private offices, catering to a variety of business needs. Lower-level spaces are ideal for startups and feature a shared break area. All tenants enjoy access to a common conference room. Recent and planned upgrades include improved HVAC systems and LED lighting in common areas, reflecting the commitment to enhancing the building's functionality and appeal. There are no elevators in the building.
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1976
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Total area
15,308 SF
Lot
0.94 ac (41,077 SF)
Zoning code
NC, OR
APN
6 156-A
UPID
US92-1071615
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Hair Salon Nail Salon
-
Tax Preparation
-
Hair Salon
-
Employment Agency
-
Association / Organization
Location
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$380k
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$859k
Blend (final)
Blend
$425k
Owner & transaction history
since 2022
Last sale
$699,900
6 recorded transactions
Zoning & alternative use
NC, OR · Green Bay, WI
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Value estimation
Instant AI valuation built from comps, income signals, and proprietary benchmarks. A defensible range, not a single guess.
Unlock the complete Valuation workflow
Full NOI reconstruction, selected comps, alternative-use scenarios, data audit and PDF export.
Full NOI build-up · 6 steps
Sensitivity value band
Source audit · 6 inputs
PDF export
Professional Plan · 30 reports
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from $99/month
Summary
1
Valuation conclusion
Included free
Estimated market value
$425k
Value range
$383k – $468k
±10% around blend
Estimated value / SF
$28 / SF
Confidence
Property data
88
Market benchmarks
67
Comparable evidence
60
Income certainty
100
$383k
blend $425k
$468k
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
GBA
15,308 SF
Lot area
0.94 ac
Year built
1976
APN
6 156-A
Zoning
NC, OR
Assessed value
$716,200
Annual tax
$13,776
3
Income approach: direct capitalization
Partial preview
Estimated Stabilized NOI, derived from market rent, vacancy and expense benchmarks. Actual property income not reported.
Estimated market rent / SF
Potential gross income
Vacancy allowance
Effective gross income
Benchmark operating expenses
Stabilized NOI
Property tax
$13,776
Selected cap rate
4
Sales comparison
Partial preview
Sales approach indication
$859k
Range $859k – $3.49M
Evidence
6 found
Recent peer sales in this city
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$425k
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
Submarket 47 sales
$128
-78%
County 69 sales
$125
-78%
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography; the diamond marks the subject at $28/SF. Delta below average reads as headroom. Source: Realmo CRE sales derivatives (county records).
7
Data & methodology
Included free
Building area
County record
Property tax
County record
Assessed value
County record
Zoning designation
County record
Operating expenses
Modeled
Market rent
Market benchmark
Not analyzed due to unavailable source data: actual rent roll, tenant leases, physical condition and capital
requirements are outside a desktop analysis.
Cost Approach excluded: income and sales evidence cover the value conclusion.
Automated valuation analysis, not a licensed appraisal. Figures are derived from public
records and proprietary models. Desktop analysis: no physical inspection, tenant leases or reported
property income. Verify with a licensed appraiser before transacting.
Cap rate
Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
Unlock the complete Cap Rate workflow
Full market tables, editable assumptions, comparable evidence, saved work and exports.
9-scenario matrix
NOI build-up · 9 steps
Market rates by use type
PDF export
Professional Plan · 30 reports
from $99/month
from $99/month
Overview
No cap rate is computable for this property yet: no recorded sale, income signal or market-rate row for its use type.
Price sensitivity
The rate is the decision lever; valuation is the consequence.
Test a cap rate
Implied value$3.87M
Move the market yield to see immediate price impact.
Value / SF
$253
Vs. selected
Base
Derivation
NOI ÷ cap
Arithmetic over the derived NOI * — not market scenario modeling.
NOI × cap matrix
Preview
Preview of 9 modeled outcomes.
NOI
5.00%7.00%9.00%
$244k
$4.88M
$3.49M
$2.71M
$271k
$5.42M
$3.87M
$3.01M
$298k
$5.96M
$4.26M
$3.31M
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Property tax & assessments
Tax year 2023Property tax & assessments
Tax year 2023
Tax billed
$13,776
Tax year 2023
Assessed value
$716,200
Assessed 2023
Previous assessed
$716,200
+0.0% YoY
Effective rate
1.92%
On assessed value
Assessed land
$235,600
Assessed improvement
$480,600
Total market value
$805,900
Applied tax rate
2,289.0000
Automated cap rate analysis. Based on public records, market benchmarks and proprietary
models. Verify with a licensed professional before transacting.
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Office buildings
Use group
OFFICE BUILDING
Status
For Lease
Year built
1976
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
NONE
Total area
15,308 SF
Lot
0.94 ac (41,077 SF)
Zoning code
NC, OR
APN
6 156-A
UPID
US92-1071615
Jurisdiction
BROWN
Zoning & alternative use
NC, OR · Green Bay, WIZoning NC, OR · permitted uses
NC, OR · Green Bay, WI
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Building & site characteristics
From public records
Year built
1976
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
NONE
Lot
0.94 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
County-recorded code
NC, OR
Jurisdiction
Green Bay, WI
Recorded code
NC, OR
Ownership Intelligence
Find the owner behind the property.
Unlock the evidence behind ownership: portfolio, transactions, debt and signals that help you decide who to contact next.
What opens after registration
Ownership report
Owner identityResolved entity and name variants
Portfolio holdingsLinked properties and estimated value
Deal signalsSell-side activity worth following
Debt & historyRecorded loans and transaction history
Private report access
See the ownership record for this address.
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Owner of record and activity signals are derived from public records and modeled classifications.
They do not confirm beneficial ownership or intent to transact.
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