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$2,100,000

25 S Mill St Portsmouth, NH 03801

4 beds
2 full
1,760 sqft
0.1 acres
$1,193 / sqft
House

Property details

About 25 S Mill St

Welcome to 25 South Mill Street — a rare offering of newer construction (built in 2013) located on the waterfront in one of Portsmouth’s most sought-after neighborhoods. Currently set up as a 2 family home this would be a fairly straight forward conversion to a true single family property in a premier location. Each of the two units features 2 bedrooms, 1 full bath, and in-unit laundry, offering comfortable, modern living with a coastal flair. The upper unit enjoys elevated views and higher ceilings, maximizing light and enhancing the stunning water vistas. Outdoors, you'll find no shortage of parking with a deep, oversized garage (approx. 14' x 26') and a driveway that accommodates 6+ vehicles — an exceptional amenity for South End living. With flexible use options, this property is ideal for an owner-occupant looking to offset their costs with rental income, investors seeking a premium location asset, or those envisioning a condo conversion or conversion to a single-family residence. The upper unit will be vacant by end of July 2025, while the lower unit is leased through April 2026, providing both immediate flexibility and reliable income. Don’t miss this exceptional opportunity in the heart of the South End — just a short stroll to downtown Portsmouth, Prescott Park, and the city’s vibrant waterfront scene.

Highlights

Home typeSingle Family Residence
HeatingHot Water
StatusActive
Size1,760 sqft
BasementYes
Lot size0.12 Acres
Year built2013
MLS #5050213
Garage1 space

Summary

  • Full Bathrooms: 2
  • Appliances: Dryer, Microwave, Refrigerator, Washer, Gas Oven
  • Basement: Yes
  • Flooring Type: Carpet, Wood
  • Total Bedroom Count: 4
  • Garage Space: 1 space
  • Heating: Hot Water
  • Cooling: None
  • List Price: $2,100,000
  • Price/SqFt: $1,193
  • Annual Tax Amount: $13,281
  • Tax Year: 2023
  • Directions: Marcy to South Mill
  • Year Built: 2013
  • Stories: 2
  • Living Area: 1,760 SqFt
  • Lot Size: 0.12 Acres
  • MLS Number: 5050213
  • Office Name: Great Island Realty LLC
  • Office Phone: (603) 433-3350
  • Office Email: janet@greatislandrealty.com
  • Listing Agent: Emil Uliano

IDX© Copyright 2025 PrimeMLS, Inc. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this site comes in part from the IDX Program of PrimeMLS. The information being provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Housing Market Reports are calculated by Rocket Homes Real Estate, LLC and based on information from the MLS.
Data displayed may be a portion of, and not a complete set of all listings published in the MLS.
Last updated on: 7/24/2025, 5:45:32 PM Eastern. If you have any questions regarding the accuracy of this data, please contact us at help@rockethomes.com.

Price information

Property sales

We're sorry, we currently don't have property sales data for this listing.

Tax history

YearAssessmentProperty Tax
2023$823,400$13,281
2022$823,400$12,516
2021$823,400$12,376
2020$823,400$12,104
2019$823,400$12,236
2018$752,800$11,924

History based on county public records data.

Nearby schools

9

Little Harbour School

Public District KG-5

0.5 mi

50 Clough Dr Ste 1

8

New Franklin School

Public District KG-5

1.4 mi

1 Franklin Dr

7

Mary C. Dondero Elementary School

Public District KG-5

2.6 mi

32 Van Buren Ave

School ratings are a score out of 10, where 10 is the highest and 1 is the lowest.

All data from GreatSchools

Neighborhood

The neighbors living near this home have an average income of $72,414. Residents of Portsmouth, NH typically earn between $35k-100k each year. The most common type of family is single, no kids. The majority of residents in this area have post secondary degree education.

How much money do the neighbors make?

26%
<35k
34%
35k-100k
29%
100k-200k
11%
200k+

What level of education do the neighbors have?

High School Diploma
Post Secondary Degree
Masters Degree

What types of families live nearby?

65%
Single, No Kids
1%
Single, with Kids
25%
Married, No Kids
9%
Married, with Kids

Are the neighbors home owners or renters?

Home Owners
Renters

How old are people in this area?

7%
<11 yrs old
3%
12-17 yrs old
13%
18-34 yrs old
42%
35-64 yrs old
35%
65+ yrs old

What do the neighbors do for fun?

  • Skiing/snowboardingSkiing/snowboarding
  • Men's TennisMen's Tennis
  • Yoga/pilatesYoga/pilates

Where do the neighbors shop?

  • NordstromNordstrom
  • BloomingdalesBloomingdales
  • H&MH&M

Where do the neighbors go to eat?

  • California Pizza KitchenCalifornia Pizza Kitchen
  • Bonefish GrillBonefish Grill
  • Dominos PizzaDominos Pizza

What do the neighbors drive?

  • BMWBMW
  • LexusLexus
  • AudiAudi

What do the neighbors listen to?

  • Talk/PersonalityTalk/Personality
  • NewsNews
  • AlternativeAlternative
All data provided by Home Junction and Claritas

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Frequently asked questions

About 25 S Mill St

The listing price of 25 S Mill St property is $2,100,000.

The property 25 S Mill St is a house located in Portsmouth, New Hampshire, 03801.

Active Listing: 25 S Mill St is For Sale (Active/New) which means the seller is accepting offers.

The nearby schools for 25 S Mill St are: Little Harbour School (GreatSchools Rating 9/10), New Franklin School (GreatSchools Rating 8/10), Mary C. Dondero Elementary School (GreatSchools Rating 7/10), Portsmouth Middle School (GreatSchools Rating 7/10), Shapleigh School (GreatSchools Rating 5/10), Rye Junior High School (GreatSchools Rating 7/10), Robert W Traip Academy (GreatSchools Rating 6/10), Portsmouth High School (GreatSchools Rating 8/10), York High School (GreatSchools Rating 9/10).

According to the records, the last property tax for 2023 is $13,281 (source: MLS/based on county public records data).

The property at 25 S Mill St has 4 bedrooms and 2 bathrooms.

The property 25 S Mill St is 1,760 SqFt (source: MLS/tax record).

The year of construction for 25 S Mill St is 2013.

This home is located at 25 S Mill St in Portsmouth, NH and zip code 03801 in the Seacoast neighborhood. This 1,760 square foot home, which was built in 2013, sits on a 0.12 acre lot. Features: 4 bedrooms, 2 bathrooms. It has been listed on Rocket Homes since July 7, 2025 and is currently priced at $2,100,000.

While more than 11 listings in Portsmouth, NH in June 2025 were sold above asking price, there were more than 17 listings sold at asking price, and more than 14 were sold below. The number of homes for sale in Portsmouth, NH increased by 32% between May and June 2025.

From Rocket Homes Real Estate and based on county public records data.

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