Unit 6 | Treehouse Living at The Caswell Mansion
Welcome to Unit 6 at The Caswell Mansion, a beautifully restored top-floor residence within one of Newmarket's most distinctive historic properties. Thoughtfully remodeled in 2025, this unique home blends the character of the past with the conveniences today's renters value most.
Perched atop the property's original 1890s carriage barn, this retreat features a spectacular 20' x 7' private deck nestled among majestic 200-year-old oak trees, creating the feeling of living in your own private treehouse. Enjoy morning coffee surrounded by nature and peaceful treetop views rarely found in apartment living.
Inside, you'll find abundant storage, including two coat closets, double closets in each bedroom, a double-door pantry, and cabinetry designed to maximize every inch of space. Additional basement storage is included in the rent.
Modern comforts include a full-size Speed Queen washer and dryer, Mitsubishi mini-split heating and cooling systems, and a thoughtfully designed layout that offers exceptional privacy and convenience.
Situated on a picturesque two-acre property, residents enjoy room to relax and space for their pets while being just steps from Newmarket's schools, churches, healthcare facilities, and vibrant waterfront downtown all accessible via sidewalks.
As a resident of The Caswell Mansion, you'll become part of a property that has been woven into Newmarket's story for more than 135 years where historic character and modern living come together in a truly one-of-a-kind setting.
Owner responsible for water/sewer, plowing, and landscaping. Tenant responsible for electricity and shoveling personal car and stairs after storm. All new appliances and lighting - all LED lighting fixtures.
196 S Main St
Newmarket, NH 03857
Apartment building
1-8 beds
In-unit laundry (W/D)
Available units
This building may have units for rent or for sale. Select a unit to contact.
What's special
Two coat closetsBeautifully restored top-floor residenceAbundant storageDouble-door pantryPicturesque two-acre propertyAdditional basement storage
Facts, features & policies
Unit features
Appliances
- Dishwasher
- Dryer
- Freezer
- Oven
- Refrigerator
- Washer
Flooring
- Carpet
- Hardwood
- Tile
Neighborhood: 03857
Areas of interest
Use our interactive map to explore the neighborhood and see how it matches your interests.
Travel times
Walk, Transit & Bike Scores
Walk Score®
/ 100
Very WalkableBike Score®
/ 100
Somewhat BikeableNearby schools in Newmarket
GreatSchools rating
- 9/10Newmarket Elementary SchoolGrades: PK-5Distance: 0.7 mi
- 4/10Newmarket Jr.-Sr. High (Elem)Grades: 6-8Distance: 0.3 mi
- 7/10Newmarket Jr.-Sr. High SchoolGrades: 9-12Distance: 0.3 mi
Nearby apartments for rent
Listing order may reflect relevance, quality, and paid promotion.
Frequently asked questions
What is the walk score of 196 S Main St?
196 S Main St has a walk score of 75, it's very walkable.
What schools are assigned to 196 S Main St?
The schools assigned to 196 S Main St include Newmarket Elementary School, Newmarket Jr.-Sr. High (Elem), and Newmarket Jr.-Sr. High School.
Does 196 S Main St have in-unit laundry?
Yes, 196 S Main St has in-unit laundry for some or all of the units.
What neighborhood is 196 S Main St in?
196 S Main St is in the 03857 neighborhood in Newmarket, NH.








