20 Clematis Ave, Waltham MA 02453
Waltham, MA 02453
$2,495,000
$2,300,000
Est. $13,828/month
Estimate assumptions
20% down, a 30-year loan at 6.5%, and $200/month estimated insurance.
Includes the supplied property-tax and HOA inputs; missing inputs contribute $0. HOA fees with an unspecified frequency are treated as monthly. PMI and closing costs are excluded.
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About this home
Multi-tenant or owner occupant flex building for sale. Building currently includes 3 units, including a small 416 sq.ft. office (owner occupied until closing), 6,000 sq.ft. of light assembly/production and office space (formerly used as a commercial printing and graphics business), and 4,786 sq.ft. warehouse space on ground floor (currently used as a boxing gym and fitness club). Former printing space has central air conditioning and dedicated loading dock. Ground floor has grade level and tailboard loading doors. 8 of the 18 parking spaces are located in the commonly owned 1 Wilber Street parcel.
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Recently Sold Nearby
Property History
Market Insights
1
Price Changes
7.8%
Price Range
Property Timeline
Price Reduced
Sep 8, 2026
$2,300,000
$195,000
(-7.82%)
From $2,495,000 to $2,300,000 (-7.8%)
Listed for Sale
May 12, 2026
$2,495,000
Original listing
Agent: John Nealon
Office: W. J. Nealon Commercial Realty, Inc.
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 09/08/2026 | ↓ Price Reduced | $2,300,000 | $195,000 | - | From $2,495,000 to $2,300,000 (-7.8%) |
| 05/12/2026 | 🏠 Listed for Sale | $2,495,000 | - | - | Original listing |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2025 | $23,975 | — |
Financial Details
Annual Property Tax
$23,975
Tax Year 2025
Facts & Features
Home Facts
Type
Commercial Sale
Year Built
1950
Living Area
11,144 sq ft
Lot Size
0.24 acres
Interior
Heating
None
Cooling
None
Flooring
None
Appliances
None
Fireplace
None
Basement
None
Laundry
None
Features
None
Exterior
Construction
None
Architecture
None
Roof
None
Features
None
Pool
None
Spa
None
Fencing
None
Patio/Porch
None
Parking
Features
None
Utilities
Electric
None
Water
None
Sewer
None
Gas
None
Other
None
Financial
Annual Tax
$23,975
HOA & Community
Fee Includes
None
Amenities
None
Optional Fee Includes
None
MA Disclosures
Seller Disclosures
Please Ask About Parking And Loading Easements On Neighboring Sites. Sale Also Includes Ownership Interest In Parcel Across Street Known As 1 Wilbur Street Which Is With Owners Of 12 & 30 Clematis, And Comprises 0.18 Acres.
Additional Details
Possession
None
Accepted Financing
None
Structure Type
[]
Documents
None
County
Middlesex
Property Overview
Listing Type
For Sale
Year Built
1950
Living Area
11,144 sq ft
Floor Layout
Interactive room guide
Floor Layout
Display Options
Room Markers
OOffice (1)
KKitchen (1)
BRBedroom (5)
BABathroom (4)
DDining (1)
LLiving (2)
Conceptual diagram based on MLS room data. It is not to scale and is not a substitute for architectural plans or on-site measurements.
Interior Features
Flooring:
Appliances:
Interior Features:
Windows:
Basement:
Laundry:
Security:
Construction & Materials
Year Built:
1950
Structure Type:
Exterior Materials:
Roof:
Foundation:
Heating, Cooling & Utilities
Heating:
Cooling:
Hot Water:
Water Source:
Sewer:
Energy Features:
Exterior & Lot
Exterior Features:
Patio & Porch:
Fencing:
Other Structures:
Lot Features:
Road Surface:
Parking & Garage
Parking Features:
Nearby Schools
School District
Waltham School District local
B+
School Safety
2024-25
2.3%
Average
2.2%
Suspensions
1.4%
In-School
0.1%
Emergency
3.2% below state avg
Elementary Schools
10 schools
The Lumen Academy
0.7 mi
Grades PK-08
Our Lady's Academy
2.2 mi
Grades PK-08
Milestones Day School
2.6 mi
Grades 02-12
B+
James Fitzgerald Elementary School
0.3 mi
|
#264 of 825
|
Score: 51.9
Improved 8 spots from last year
-6.3 below state avg
352 students
Diverse
Diverse Student Body
Strong Attendance
Grades K-05
B
Dual Language School
1.4 mi
|
#410 of 825
|
Score: 47.5
Dropped 78 spots from last year
-10.7 below state avg
219 students
Moderate
Strong Attendance
Grades K-05
B
Northeast Elementary School
1.7 mi
|
#346 of 825
|
Score: 49.1
Improved 261 spots from last year
-9.1 below state avg
477 students
Diverse
Rising School
Diverse Student Body
Grades PK-05
B
Henry Whittemore Elementary School
1.7 mi
|
#353 of 825
|
Score: 48.9
Improved 148 spots from last year
-9.3 below state avg
355 students
Moderate
Rising School
Grades K-05
B+
Thomas R Plympton Elementary School
1.9 mi
|
#305 of 825
|
Score: 50.7
Improved 342 spots from last year
-7.5 below state avg
335 students
Diverse
Rising School
Diverse Student Body
Grades K-05
B
William F. Stanley Elementary School
2.6 mi
|
#412 of 825
|
Score: 47.4
Improved 57 spots from last year
-10.8 below state avg
396 students
Diverse
Rising School
Diverse Student Body
Grades PK-05
A-
Douglas MacArthur Elementary School
2.7 mi
|
#174 of 825
|
Score: 56.1
Improved 224 spots from last year
-2.1 below state avg
515 students
Diverse
Rising School
Diverse Student Body
Strong Attendance
Grades K-05
Middle Schools
2 schools
B
John W. McDevitt Middle School
1.5 mi
|
#160 of 352
|
Score: 43.8
Dropped 17 spots from last year
-14.4 below state avg
604 students
Diverse
Grades 06-08
A-
John F Kennedy Middle School
1.6 mi
|
#95 of 352
|
Score: 50.3
Improved 33 spots from last year
-8 below state avg
645 students
Diverse
Rising School
Diverse Student Body
Grades 06-08
High Schools
4 schools
Gann Academy-The New Jewish High School
1.0 mi
Grades 09-12
Waltham Valor High School
1.4 mi
47 students
Less Diverse
Grades 09-12
B-
Waltham Senior High School
1.6 mi
|
#181 of 346
|
Score: 53.6
Improved 57 spots from last year
-4.6 below state avg
1,784 students
Diverse
21 sports
• 1,802 athletes
Strong AP Program
Early College Program
Rising School
Career Tech Programs
Grades 09-12
Chapel Hill Chauncy Hall School
1.6 mi
Grades 09-12
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Loan Amount
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Over life of loan
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Including down payment
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Down: $0
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Monthly Payment Breakdown
Principal & Interest
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Property Tax
$1,998
Homeowners Insurance
$200
PMI (if <20% down)
$0
Loan Summary
Total of 360 payments
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Rate Impact
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+0.5% Rate
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Payment Over Time
Year 1
95% Interest
Year 15
50/50
Year 30
95% Principal
* Estimates only. Actual payments may vary. Consult with a lender for accurate figures.
Location
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Neighborhood
20 Clematis Ave, Waltham MA 02453
Waltham, MA 02453
Listing Information
Listing Agent
John Nealon
Listing Office
W. J. Nealon Commercial Realty, Inc.
Office Phone
617-926-1110
Agent MLS ID
NB112111
Office MLS ID
NB2551
Listing Data Updated
Sep 8, 2026 2:22 PM EDT
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.
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