20 Clematis Ave, Waltham MA 02453
Waltham, MA 02453
$2,495,000
Est. $14,814/month
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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
Property Timeline
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 |
|---|---|---|---|---|---|
| 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
BABathroom (4)
BRBedroom (5)
DDining (1)
KKitchen (1)
LLiving (2)
OOffice (1)
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
|
#270 of 824
|
Score: 51.8
Improved 2 spots from last year
-6.4 below state avg
350 students
Diverse
Diverse Student Body
Strong Attendance
Grades K-05
B-
Dual Language School
1.4 mi
|
#433 of 824
|
Score: 46.6
Dropped 101 spots from last year
-11.6 below state avg
222 students
Moderate
Grades K-05
B
Northeast Elementary School
1.7 mi
|
#352 of 824
|
Score: 49.1
Improved 255 spots from last year
-9.1 below state avg
527 students
Diverse
Rising School
Diverse Student Body
Grades PK-05
B
Henry Whittemore Elementary School
1.7 mi
|
#357 of 824
|
Score: 49.0
Improved 144 spots from last year
-9.2 below state avg
372 students
Moderate
Rising School
Grades K-05
B+
Thomas R Plympton Elementary School
1.9 mi
|
#303 of 824
|
Score: 50.8
Improved 344 spots from last year
-7.4 below state avg
357 students
Diverse
Rising School
Diverse Student Body
Grades K-05
B-
William F. Stanley Elementary School
2.6 mi
|
#420 of 824
|
Score: 47.2
Improved 49 spots from last year
-11.1 below state avg
381 students
Diverse
Rising School
Diverse Student Body
Grades PK-05
A-
Douglas MacArthur Elementary School
2.7 mi
|
#185 of 824
|
Score: 55.9
Improved 213 spots from last year
-2.3 below state avg
475 students
Diverse
Rising School
Diverse Student Body
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
618 students
Diverse
Grades 06-08
A-
John F Kennedy Middle School
1.6 mi
|
#94 of 352
|
Score: 50.3
Improved 34 spots from last year
-7.9 below state avg
635 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
49 students
Less Diverse
Grades 09-12
B-
Waltham Senior High School
1.6 mi
|
#179 of 346
|
Score: 53.0
Improved 59 spots from last year
-5.2 below state avg
1,791 students
Diverse
21 sports
• 1,802 athletes
Early College Program
Rising School
Career Tech Programs
College Ready Curriculum
Grades 09-12
Chapel Hill Chauncy Hall School
1.6 mi
Grades 09-12
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Down: $0
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Monthly Payment Breakdown
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Property Tax
$1,998
Homeowners Insurance
$200
PMI (if <20% down)
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Loan Summary
Total of 360 payments
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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
May 16, 2026 3:05 AM 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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