Unk
75 Columbus Ave, Waltham MA 02451, Marlborough, MA
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Independent brokerage page. BMN Boston Powered by SERHANT compiles public MLS listing and sales data for Unk; it is not the building's management company, leasing office, or HOA. Contact Unk directly for management, rental, or maintenance questions.
About Unk
Unk is a located at 75 Columbus Ave, Waltham MA 02451 in Marlborough, MA . The building features 2-bedroom residences ranging from 678 to 1,330 square feet , with prices from $585K to $585K . 1 unit has sold in the last two years at an average price of $585K .
Monthly HOA fees at Unk are typically $200 per month and commonly include Insurance . Parking is typically attached, under, garage door opener, averaging 4.0 spaces per unit.
Figures summarize MLS listing records. Repeat listings can refer to the same residence; records tracked are not the building's total number of units.
Last updated: 2026-10-05
Unit Types at Unk
| Unit Type | Beds | Baths | Sq Ft | Price Range | Available |
|---|---|---|---|---|---|
| 2 Bedroom | 2 | 1 | 678 sqft | $71K | None listed |
| 2 Bedroom | 2 | 2 | 1,197 - 1,330 sqft | $127K - $585K | None listed |
Recently Sold at Unk
| Address | Beds/Baths | Sq Ft | List Price | Sold Price | Change | Sold Date |
|---|---|---|---|---|---|---|
| 75 Columbus Ave # 75, Waltham MA 02451 | 2bd / 1.5ba | 1,197 | $575K | $585K | +1.7% | Aug 14, 2025 |
Frequently Asked Questions About Unk
Is BMN Boston Powered by SERHANT the management company or leasing office for Unk?
No. BMN Boston Powered by SERHANT is an independent real estate brokerage. We compile public MLS listing and recent-sales data for Unk to help buyers and sellers make informed decisions. We do not manage the building, lease units on behalf of the owner, or handle HOA matters. For management, leasing, or maintenance inquiries, please contact Unk directly.
Are there any units for sale at Unk?
There are currently no units listed for sale at Unk in Marlborough, MA. Check back regularly as new listings are added daily.
What is the price range at Unk?
Prices at Unk range from $585K to $585K based on recent listings and sales. Prices vary by unit size, floor, and finishes.
What are the unit sizes at Unk?
Units at Unk range from 678 to 1,330 square feet, with 2 to 2 bedroom configurations.
How much do condos sell for at Unk?
1 units have sold at Unk in the last two years at an average price of $585K. The average time on market was 72 days.
What are the HOA fees at Unk?
Monthly HOA fees at Unk $200 per month. Based on one listing with HOA data on file. Fees commonly include Insurance. Actual fees vary by unit; confirm with the listing agent.
Is parking available at Unk?
Parking at Unk is typically described as attached, under, garage door opener. On average, listings include 4.0 parking spaces. Specific arrangements (deeded, assigned, garage vs. surface) vary by unit.
More Buildings & Communities in Marlborough, MA
See all homes for sale in Marlborough, MA → View all 195 buildings in Marlborough →
Looking to Buy or Tour at Unk?
BMN Boston Powered by SERHANT is a real estate brokerage that tracks every MLS listing at Unk. Schedule a tour, ask about a specific unit, or get instant alerts when new listings hit the market — download the app or browse all listings below.
Trying to reach the building's management or leasing office? Search "Unk Marlborough management" — we are not affiliated with the building's management.

