The Armstrong

425 Lagrange St, Boston, MA

7 recently sold

About this page — BMN Boston Real Estate is an independent real estate brokerage. We compile public MLS listing and sales data for The Armstrong. We are not the management company, leasing office, or HOA for this building. For management, rental, or maintenance inquiries, please contact The Armstrong directly.

About The Armstrong

The Armstrong is a located at 425 Lagrange St in Boston, MA . The building features 1 to 3-bedroom residences ranging from 593 to 1,296 square feet , with prices from $680K to $730K . 7 units have sold in the last two years at an average price of $705K .

Monthly HOA fees at The Armstrong range from $486 to $537 per month and commonly include Water, Sewer, Insurance .

Units Tracked 7
Avg Days on Market 56
Monthly HOA $486–$537

Last updated: 2026-05-22

Unit Types at The Armstrong

Unit Type Beds Baths Sq Ft Price Range Available
1 Bedroom 1 1 593 - 659 sqft $500K - $550K None listed
2 Bedroom 2 2 922 - 1,058 sqft $585K - $820K None listed
3 Bedroom 3 3 1,296 sqft $775K None listed

Recently Sold at The Armstrong

Average sold price: $705K Average days on market: 56 7 sales in the last 2 years
Address Beds/Baths Sq Ft List Price Sold Price Change Sold Date
425 Lagrange St # 306, Boston MA 02132 2bd / 2ba 995 $729K $715K -1.9% Jan 15, 2025
425 Lagrange St # 314, Boston MA 02132 2bd / 2ba 995 $725K $700K -3.4% Dec 30, 2024
425 Lagrange St # 310, Boston MA 02132 2bd / 2ba 971 $695K $690K -0.7% Nov 18, 2024
425 Lagrange St # 101, Boston MA 02132 2bd / 2ba 966 $695K $680K -2.2% Nov 11, 2024
425 Lagrange Street # 111, Boston MA 02132 2bd / 2ba 1,029 $725K $698K -3.8% Aug 7, 2024
425 Lagrange Street # 313, Boston MA 02132 2bd / 2ba 1,025 $739K $723K -2.2% Jul 12, 2024
425 Lagrange Street # 304, Boston MA 02132 2bd / 2ba 1,026 $739K $730K -1.2% Jun 13, 2024

Frequently Asked Questions About The Armstrong

Is BMN Boston Real Estate the management company or leasing office for The Armstrong?

No. BMN Boston Real Estate is an independent real estate brokerage. We compile public MLS listing and recent-sales data for The Armstrong 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 The Armstrong directly.

Are there any units for sale at The Armstrong?

There are currently no units listed for sale at The Armstrong in Boston, MA. Check back regularly as new listings are added daily.

What is the price range at The Armstrong?

Prices at The Armstrong range from $680K to $730K based on recent listings and sales. Prices vary by unit size, floor, and finishes.

What are the unit sizes at The Armstrong?

Units at The Armstrong range from 593 to 1,296 square feet, with 1 to 3 bedroom configurations.

How much do condos sell for at The Armstrong?

7 units have sold at The Armstrong in the last two years at an average price of $705K. The average time on market was 56 days.

What are the HOA fees at The Armstrong?

Monthly HOA fees at The Armstrong $486 to $537 per month. Based on 7 listings with HOA data on file. Fees commonly include Water, Sewer, Insurance. Actual fees vary by unit; confirm with the listing agent.

Looking to Buy or Tour at The Armstrong?

BMN Boston Real Estate is a real estate brokerage that tracks every MLS listing at The Armstrong. 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 "The Armstrong Boston management" — we are not affiliated with the building's management.