$707,500

20 Merrill St.

Year built: 1805

Lot size: 0.16 acre

Bedrooms: 4

Baths: 4 full

Taxes: $8,691 (2015)

This 2,767-square-foot historical home has antique elements — gunstock corners, a beehive oven, and raised paneling, to name a few — but one of the most compelling features is new: a third-floor addition with a bedroom, full bath, custom cabinetry, a balcony, and a walk-in closet. The kitchen, added in 1995, features granite counters, stainless-steel appliances, and skylights.

$875,000

143 State St.

Year built: 2015

Lot size: 0.45 acre

Bedrooms: 3

Bath: 2 full, 1 half

Taxes: Not known

At 3,000 square feet, this new Craftsman-style bungalow offers a lot of living space within walking distance to the commuter rail. The home has a walkout lower level, a gas fireplace, an open floor plan, crown molding, quartersawn-oak floors, high-end appliances, and granite counters in the eat-in kitchen.

James Sullivan can be reached at jamesgsullivan@gmail.com. Follow him on Twitter @sullivanjames.