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Property profile

21 Main St Waltham, MA 02453

OFF-MARKET
Retail space
Property ID
US38-0462615
13,755 SF 1.06 ac lot Built 1997
Last sale Oct 2021 · $6,300,000
Entity Owned Owner of record is a legal entity (LLC / corporation). 5-yr Hold Held for 5 years. Absentee Owner Owner mailing address differs from the property address. Free & Clear No active or open recorded mortgage detected.
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Property summary

AI-generated overview

The property is a fee-simple, freestanding single-tenant Walgreens building situated on a 1.06-acre parcel with a drive-through. The site has supported a Walgreens use for more than 22 years and includes long-term tenancy characteristics with a current lease structure that provided for renewal options, including five additional five-year renewal options remaining. The property is located at the intersection of Main Street (US Route 20) and Warren Street in a high-density residential…

Ownership intelligence

Who controls the opportunity?

Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.

Owner contacts

Can we reach the decision maker?

Skip-traced phones and e-mails of the owner. Included with a plan.

Debts

What is owed, to whom, and when it comes due

Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.

Property tax · 2024

What does the county charge?
$92k
Tax billed · 2024
Assessed value$4.45M
Assessed land$1.33M
Assessed improvement$3.13M
Effective rate2.07%

Value estimate

· Nov 2026
$7.16M
$6.44M – $7.88M
AI approach$7.09M
Submarket $/SF estimate$5.73M

Realmo valuation models over county records and 9 qualifying comparable sales.

Recently sold

What actually traded nearby?
$270/SF
County average, outlier-cleaned · 360 recorded sales of this use type
Observed band · Q1–Q3$140 – $417
Qualifying comparables9

Cap rate analysis

How does the asset earn?

No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.

Zoning insight

No data for this section
What can be built here?

No zoning code is on file for this parcel. Coverage grows with every catalog release.

JurisdictionWALTHAM

Location intelligence

Which uses thrive at this corner?
Best fit: Realty agency
Demand heat for this use is drawn on the map · LocInt grid
Demand index
Realty agency19.8
Parking Facility17.6
Hair Salon15.5

Location

21 Main St Waltham, MA 02453
County assessor Recorded deeds · 5 transfers 9 qualifying comp sales Zoning catalog · not on file

Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.

Comparables

6 recorded sales · 17 properties nearby
Recent sales nearby
6 recorded sales in this ZIP, last 8 years
Address Sale price Sold Size
406 Moody, Waltham, MA 02453-0414 $250,000 May 2025 9,344 SF
75 Moody, Waltham, MA 02453-5359 $3,700,000 Dec 2023 5,793 SF
121 Riv, Waltham, MA 02453 $800,000 May 2023 5,970 SF
20 Weston, Waltham, MA 02453-7758 $5,113,956 Mar 2023 14,376 SF
34 Warren, Waltham, MA 02453-6915 $1,850,000 Jun 2022 7,983 SF
474 Moody, Waltham, MA 02453-0415 $3,215,000 Jun 2019 15,123 SF
Sale prices and dates as our records hold them, one row per building. A deed can cover more of a building than the size shown, so read the price against the size rather than dividing one by the other.
Comparable nearby
6 properties of the same type nearby
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Rey answers here. ChatGPT, Grok and Claude get the same data packet.

Includes: Price & PSF · Cap rate · Location · Zoning

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