20 Marlboro St
+45.5%vs the Belmont ZIP median sale $/ft² ($457)
Sales Performance
1 arms-length sales on record for this building.
Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.
Ownership & Financing
Recent SalesThe latest recorded arms-length sales in the building, newest first.
Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.
Property Facts
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
District: Belmont School District
Neighborhood · ZIP 02478These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
Index scale: 100 = US average (tick). Lower is better.
All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
About 20 Marlboro St
How many units are in 20 Marlboro St, Belmont, MA?
20 Marlboro St, Belmont, MA has 3 residential units across built in 1913, according to county assessor records.
What is a unit at 20 Marlboro St, Belmont, MA worth?
The median TopHap Estimate across the 3 units at 20 Marlboro St, Belmont, MA is $1,104,448. That works out to $665 per square foot. Units run from 1,399 to 1,959 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 20 Marlboro St, Belmont, MA expensive for Belmont?
Units at 20 Marlboro St, Belmont, MA carry a median of $665 per square foot, 46% above the Belmont median of $457 per square foot.
How often do units sell at 20 Marlboro St, Belmont, MA?
0 units at 20 Marlboro St, Belmont, MA sold in the last 12 months, out of 1 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.
More homes on Marlboro St
- 10 Marlboro St # 1$703K2 bd · 1 ba · 1,326 ft² · Sold $710K · Dec 2025
- 69 Marlboro St5 bd · 3 ba · 3,840 ft² · Sold $1.3M · Nov 2025
- 56 Marlboro St # 1$593K2 bd · 1 ba · 1,245 ft² · Sold $600K · Aug 2025
- 52 Marlboro St # 1$638K2 bd · 1 ba · 1,215 ft² · Sold $646K · Jun 2025
- 73 Marlboro St5 bd · 3 ba · 3,879 ft² · Sold $1.6M · Jul 2024
- 45 Marlboro St6 bd · 4 ba · 4,194 ft² · Sold $2M · Jun 2024
- 54 Marlboro St # 3$662K2 bd · 1 ba · 1,021 ft² · Sold $650K · Jan 2024
- 42 Marlboro St4 bd · 2.5 ba · 1,882 ft² · Sold $1.1M · Aug 2022
- 9 Marlboro St # 2$640K2 bd · 1.5 ba · 1,341 ft² · Sold $342K · Apr 2022
- 15 Marlboro St # 3$728K2 bd · 1 ba · 1,337 ft² · Sold $631K · Jun 2021
- 15 Marlboro St # 1$730K2 bd · 1 ba · 1,298 ft² · Sold $700K · Jun 2021
- 48 Marlboro St$877K3 bd · 1.5 ba · 1,288 ft² · Sold $608K · Mar 2021
Closest homes
- 20 Marlboro St$930K0 ft · 2 bd · 2 ba · 1,399 ft² · Sold $770K · Nov 2018
- 20 Marlboro St$1.2M0 ft · 3 bd · 2 ba · 1,959 ft² · Sold Jan 1900
- 16 Marlboro St50 ft · 6 bd · 3 ba · 3,429 ft² · Sold $1 · Aug 2008
- 24 Marlboro St$1.4M49 ft · 4 bd · 1.5 ba · 2,277 ft² · Sold $513K · Aug 2009
- 28 Marlboro St$813K99 ft · 2 bd · 1 ba · 1,450 ft² · Sold $652K · Apr 2020
- 30 Marlboro St$855K99 ft · 2 bd · 1 ba · 1,480 ft² · Sold $527K · Jul 2016
- 14 Marlboro St100 ft · 5 bd · 3 ba · 3,355 ft² · Sold Jan 1900
- 21 Marion Rd$630K105 ft · 2 bd · 1.5 ba · 1,187 ft² · Sold $585K · Dec 2023
More homes in Belmont 02478
- 70 Birch Hill Rd$3M4 bd · 3 ba · 3,961 ft² · Sold $2.8M · Oct 2026
- 333 Common St$1.1M6 bd · 2.5 ba · 2,196 ft² · Sold $1.7M · Oct 2026
- 10 Creeley Rd$834K4 bd · 1 ba · 1,512 ft² · Sold $815K · Oct 2026
- 10 Radcliffe Rd$1.2M4 bd · 2.5 ba · 1,905 ft² · Sold $1.2M · Oct 2026
- 81 Brettwood Rd$2.2M5 bd · 3.5 ba · 2,773 ft² · Sold $2M · Sep 2026
- 16 West St$1.3M3 bd · 1.5 ba · 1,746 ft² · Sold $1.3M · Sep 2026
- 156 Common St$2.2M5 bd · 3.5 ba · 2,823 ft² · Sold $2.5M · Sep 2026
- 36 Richardson Rd$1.6M3 bd · 1.5 ba · 1,790 ft² · Sold $1.5M · Sep 2026
- 4 Van Ness Rd$1.2M3 bd · 1.5 ba · 2,050 ft² · Sold $1.2M · Sep 2026
- 74 Van Ness Rd$1.4M3 bd · 1.5 ba · 1,632 ft² · Sold $1.5M · Sep 2026
- 315 Channing Rd$1.6M4 bd · 2.5 ba · 1,713 ft² · Sold $1.6M · Sep 2026
- 4 Coolidge Rd$1.2M3 bd · 2.5 ba · 1,734 ft² · Sold $1.3M · Sep 2026
Assigned schools
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