Back to Search
Property profile & analytics
OFF-MARKET
Estimated value
$730,000
Investment properties
21-23 Park St Ayer, MA 01432
Entity Owned
15-yr Hold
~
Est. High Equity
Property ID
US38-0166637
Property profile
Verified
Property type
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Year built
1900
Total area
5,128 SF
Lot
0.29 ac (12,632 SF)
Zoning code
DB
APN
AYER M:026 B:0000 L:0101
UPID
US38-0166637
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
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$724k
Blend (final)
Blend
$730k
Owner & transaction history
Gibby 5 LLC · 15 yrs held
Gibby 5 LLC
since 2010
7 recorded transactions
Zoning & alternative use
DB · Ayer, MA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Apartment house (5+ units)
$1.2M
+70.2%
Office building
$1.1M
+61.7%
Industrial (general)
$785,000
+13.4%
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 Ayer submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Ayer 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
by Request
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$695,000
Current use
APARTMENT HOUSE (5+ UNITS)
$1,180,000
Change: +70% · Conversion: Moderate
OFFICE BUILDING
$1,120,000
Change: +62% · Conversion: Easy
INDUSTRIAL (GENERAL)
$785,000
Change: +13% · Conversion: Moderate
Blend value · Realmo final
$730k
Range $657k – $803k · ±10%
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
$142 / 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 2024Property tax & assessments
Tax year 2024
Assessed value
$712,800
Assessed 2024
Previous assessed
$697,600
+2.2% YoY
Assessed land
$161,500
Assessed improvement
$551,300
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
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Status
Off-Market
Year built
1900
Heating
NONE
Total area
5,128 SF
Lot
0.29 ac (12,632 SF)
Zoning code
DB
APN
AYER M:026 B:0000 L:0101
UPID
US38-0166637
Jurisdiction
AYER
Metro division
CAMBRIDGE-NEWTON-FRAMINGHAM, MA METROPOLITAN DIVISION
Zoning & alternative use
DB · Ayer, MA
Zoning DB · permitted uses
DB · Ayer, MA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Ayer. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
COMMERCIAL (GENERAL) Current
Est. value
$695,000
APARTMENT HOUSE (5+ UNITS)
Est. value
$1.2M
OFFICE BUILDING
Est. value
$1.1M
INDUSTRIAL (GENERAL)
Est. value
$785,000
COMMERCIAL (GENERAL) Current
APARTMENT HOUSE (5+ UNITS)
OFFICE BUILDING
INDUSTRIAL (GENERAL)
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1900
Heating
NONE
Lot
0.29 ac
Current owner
From public records · entity-resolved
Gibby 5 LLC
Entity
Mailing address
21 PARK ST, AYER, MA 01432-1187
Ownership since
2010
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
10 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 20, 2016
—
Gibby 5 LLC
—
Deed
related
$60,000 · North Middlesex Savings Bank
Nov 5, 2010
$345,000
Gibby 5 LLC
Lauren B Rue
Deed
$276,000 · N Middlesex Svgs Bk
Apr 14, 2006
—
Farrar,lauren B
—
Grant Deed
related
$250,000 · Greenpoint Mortgage Funding
Feb 10, 2003
—
Lauren B Rue
—
Deed Of Trust
related
$180,000 · Gary Needham
May 17, 2001
$210,000
Lauren B Farrar
Kdr RT
Grant Deed
$180,000 · N Middlesex Savings Bank
Aug 18, 2000
—
Kdr RT
—
Deed Of Trust
related
$55,000 · N Middlesex Savings Bank
Jun 15, 1994
$210,000
Kdr RT
Stained Glass RT
Grant Deed
$145,000 · N Middlesex Savings Bank
Jun 15, 1994
—
Kdr RT
—
Deed Of Trust
related
$25,000 · Zenon Grzybowski
Jun 21, 1988
—
G Victor Moore
—
Deed Of Trust
related
$20,000 · Zwi Kohorn
Jun 20, 1988
$169,900
G Victor Moore
Phipps,stephannie A
Trustees Deed
$155,000 · N Middlesex Savings Bank
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.
Try Rey
Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
You own 21-23 Park St?
List it free. Reach 20,000 daily buyers.
We’ve already pulled the facts. Confirm photos + price and you’re live in 2 minutes.
List this address →
Full reports are paid
Unlock the full Property Analytics report
Start free for 7 days — no card required. Full owner contacts, all 4 valuations with methodology, refine flow, comparable adjustments, foot-traffic deep dive, export to PDF / CSV.
