425 Mass

425 Mass is an apartment community at 425 Massachusetts Avenue NW in Mt. Vernon Triangle, built originally as condominiums, with spacious floor plans and skyline, Capitol and Washington Monument views. Homes have granite counters, stainless steel appliances, kitchen islands, marble bath floors, floor-to-ceiling windows, high ceilings, built-in shelving and in-home washers and dryers, with hardwood floors and private balconies available. Residents have rooftop swimming pools and a grilling area, garden retreats, fitness centers with Peloton bikes, a yoga studio and coworking lounges. A 24-hour concierge, valet dry cleaning and garage parking with EV charging are included.

425 Mass is a residential building at 425 Massachusetts Ave NW in Mount Vernon Triangle, Washington, DC, built in 2007.

24 apartments are listed right now: 5 studios at $1,885–$2,045 a month, 15 one-bedrooms at $2,072–$3,154 a month, and 4 two-bedrooms at $3,789–$4,779 a month. Asking rents across the building run $1,885 to $4,779 per month. Pricing was last verified on October 27, 2026.

Residents have access to private balcony, 24-hour concierge, yoga studio, conference rooms, high ceilings, rooftop swimming pools, marble flooring in bathroom, individual heat and air conditioning controls, and 24 more amenities.