Entity Owned 
For Lease
1 / 16
$28 SF/Yr
100 Middle St, Portland, ME 04101
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Property summary
AI-generated overview
100 Middle Street is a Class A office property in downtown Portland consisting of two seven-story office towers connected by a shared lobby and an atrium. The building has a configuration that supports contiguous occupancy ranging from approximately 2,472 to 16,911 square feet. It features a lobby that was renovated and Class A interior finishes. The site provides on-site parking at a stated ratio of about 1.3 spaces per 1,000 square feet of leased space. The property is located with access from I-295 via the Franklin Arterial corridor and is near the Old Port area, with a walkability score reported as 99.
Property profile
Verified
Property type
Other commercial real estate
Use group
COMMERCIAL (GENERAL)
Lot
0.77 ac (33,532 SF)
APN
PTLD M:029 B:E006001
UPID
US42-0101295
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
-
Law Firm
-
Law Firm
-
Law Firm
-
Law Firm
-
Law Firm
Location
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$320k
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$320k
Owner & transaction history
since 2015
3 recorded transactions
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.
17% off on annual
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
Analytics Standard · 5 reports
from $99/month
from $99/month
Summary
1
Valuation conclusion
Included free
Estimated market value
$320k
Value range
$288k – $352k
±10% around blend
Confidence
Property data
50
Market benchmarks
100
Comparable evidence
60
Income certainty
100
$288k
blend $320k
$352k
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
Lot area
0.77 ac
APN
PTLD M:029 B:E006001
Assessed value
$23,139,700
Annual tax
$333,443
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
$333,443
Selected cap rate
4
Sales comparison
Partial preview
Too few qualifying comparables for a sales-approach estimation.
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$320k
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
ZIP 20 sales
$277
N/A
Submarket 68 sales
$216
N/A
County 163 sales
$226
N/A
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography. Delta below average reads as headroom. Source: Realmo CRE sales derivatives (county records).
7
Data & methodology
Included free
Building area
Not available
Property tax
County record
Assessed value
County record
Zoning designation
Not available
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.
17% off on annual
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
Analytics Standard · 5 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$39.88M
Move the market yield to see immediate price impact.
Value / SF
N/A
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%
$2.51M
$50.25M
$35.89M
$27.92M
$2.79M
$55.83M
$39.88M
$31.02M
$3.07M
$61.42M
$43.87M
$34.12M
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
$333,443
Tax year 2023
Assessed value
$23,139,700
Assessed 2023
Previous assessed
$23,139,700
+0.0% YoY
Effective rate
1.44%
On assessed value
Assessed land
$2,482,300
Assessed improvement
$20,657,400
Applied tax rate
60,545.0000
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
Other commercial real estate
Use group
COMMERCIAL (GENERAL)
Status
For Lease
Heating
NONE
Buildings
2
Lot
0.77 ac (33,532 SF)
APN
PTLD M:029 B:E006001
UPID
US42-0101295
Jurisdiction
PORTLAND
Zoning & alternative use
Zoning · permitted uses
No zoning code is on file for this parcel. Zoning coverage grows with every catalog release.
Building & site characteristics
From public records
Heating
NONE
Buildings
2
Lot
0.77 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
No zoning code is on file for this parcel. Zoning coverage grows with every catalog release — check back, or open Location Intelligence for use analysis of this corner.
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.
Registration is required before any owner information is shown.
One complete report on every paid plan · 5 · 30 · 100 reports per month.
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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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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