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165 Union Street, 
Portsmouth, NH 03801

$875,000


4

Beds


2

Baths


1,450

Sq Ft


Single Family

Active

Listed by

Evan Douglass, Erin@ProulxRealEstate.com

Kw Coastal And Lakes & Mountains Realty/Portsmouth

603-205-1488

Last updated:

January 18, 2026, 01:12 AM

MLS#

5073774

Source:

PrimeMLS

About This Home

165 Union Street

Located in Portsmouth’s highly sought-after West End neighborhood, this charming 4-bedroom, 1.5 bath home offers the perfect blend of walkability, comfort, and thoughtful updates—all just a half mile to downtown’s shops, restaurants, entertainment, and waterfront. Inside, the home features warmth & character including lots of natural light, hardwood floors, detailed trim, and built-ins. A sunny kitchen bursting with warmth and charm has a great peninsula for casual seating & entertaining, plus a nook for a dining table. The main level also features another space that can be used as an office or cozy reading area. Enjoy the comfort of central air conditioning and a newer heating system (natural gas) & hot water heater. The sewer line was recently upgraded in 2025, offering peace of mind for years to come. The basement has interior & exterior access, with additional space for storage and includes the laundry. Step outside to enjoy a nicely sized deck, rebuilt in 2022, overlooking a fully fenced backyard—ideal for relaxing, entertaining, or letting pets play. An additional outbuilding provides excellent space for hobbies, a workshop, or extra storage, with a brand-new roof installed in 2025. Ample off-street parking adds everyday convenience to this prime location. A wonderful opportunity to enjoy West End living with easy access to everything Portsmouth has to offer. OPEN HOUSE SAT. 1/17, 1-3pm.

Home Facts

Single Family

2 Baths

4 Bedrooms

Built in 1870

Price Summary

875,000

$603 per Sq. Ft.

MLS #:

5073774

Last Updated:

January 18, 2026, 01:12 AM

Added:

7 day(s) ago


Rooms & Interior

Bedrooms

Total Bedrooms:

4

Bathrooms

Total Bathrooms:

2

Full Bathrooms:

1

Interior

Living Area:

1,450 Sq. Ft.


Structure

Structure

Building Area:

2,037 Sq. Ft.

Year Built:

1870


Lot

Lot Size (Sq. Ft):

4,356


Finances & Disclosures

Finances

Price:

$875,000

Price per Sq. Ft:

$603 per Sq. Ft.

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Copyright 2026 Prime MLS, 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 Prime MLS. The information being provided is for consumers’ personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated January 20, 2026

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.