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Property profile & analytics
OFF-MARKET
Estimated value
$1,470,000
Office buildings
451 21st Ave Longmont, CO 80501-1421
Entity Owned
6-yr Hold
Free & Clear
Property ID
US13-1018023
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1995
Construction
CONCRETE BLOCKS
Total area
14,400 SF
Lot
1.44 ac (62,596 SF)
Zoning code
2120
APN
1205-27-4-45-002
UPID
US13-1018023
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Knee Pain Center of Longmont Medical Clinic
-
Calma Massage Therapy Alternative Medicine Practice Spa & Massage Center
-
Rebecca Wolfe Physician
-
Bodies of Wisdom Acupuncture Medical Clinic Alternative Medicine Practice
-
Dr. Steven O'dell Alternative Medicine Practice
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$1.62M
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$1.47M
Owner & transaction history
451 21st Avenue LLC · 6 yrs held
451 21st Avenue LLC
since 2020
Last sale
$1.4M
3 recorded transactions
Zoning & alternative use
2120 · Longmont, CO
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs Longmont submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Longmont submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
Method
Estimation
Statistic approach
$1,465,000
ML approach
$1,615,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Blend value · Realmo final
$1.47M
Range $1.32M – $1.62M · ±10% · vs last sale $1.40M (Jun 5 2020)
Last sale anchor
$1.40M
Jun 5 2020
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$102 / SF
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2023Property tax & assessments
Tax year 2023
Tax billed
$80,657
Tax year 2023
Assessed value
$863,226
Assessed 2023
Previous assessed
$551,232
+56.6% YoY
Effective rate
9.34%
On assessed value
Assessed land
$161,597
Assessed improvement
$701,629
Land market value
$579,200
Improvement market value
$2,514,800
Total market value
$3,094,000
Applied tax rate
680.0000
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
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
1995
Construction
CONCRETE BLOCKS
Heating
YES
Cooling
AC.PACKAGE
Stories
1
Total area
14,400 SF
Lot
1.44 ac (62,596 SF)
Zoning code
2120
APN
1205-27-4-45-002
UPID
US13-1018023
Jurisdiction
BOULDER
Zoning & alternative use
2120 · Longmont, COZoning 2120 · permitted uses
2120 · Longmont, CO
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Source
Development Code
Building & site characteristics
From public records
Year built
1995
Construction
CONCRETE BLOCKS
Heating
YES
Cooling
Yes
Stories
1
Lot
1.44 ac
Current owner
From public records · entity-resolved
451 21st Avenue LLC
Entity
Free & Clear · 6 yrs held
Mailing address
2136 ROUTT ST, LAKEWOOD, CO 80215-3614
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2020
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
3 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jun 5, 2020
—
451 21st Avenue LLC
451 21st Street LLC
Correction Deed
related
—
Aug 26, 2016
$1,400,000
451 21st Street LLC
Boettcher,william L & Shirley A
Grant Deed
$1,190,000 · Sunflower Bk
Feb 11, 2015
$1,500,000
William L Boettcher
Boettcher Family LLC
Warranty Deed
—
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
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