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80 Constitution Avenue #429, 
Portsmouth, NH 03801

$499,900

1

Bed

1

Bath

720

Sq Ft

Condo

Active

Listed by

Janet Slome

Jd Advisors, LLC.

508-277-7707

Last updated:

January 19, 2026, 01:15 AM

MLS#

5070953

Source:

PrimeMLS

About This Home

80 Constitution Avenue #429

Experience luxury living at Sage Portsmouth, an exceptional new condominium community offering premium amenities that include an Entertainment Lounge, Work-From-Home Suites, a Club Room with Terrace, Fitness Center, Game Lounge, Pet Spa, Bike Storage. Residence #429 offers an open-concept living area that features eco-friendly flooring, custom cabinetry, quartz countertops, and a thoughtful layout. The bedroom includes a walk-through closet with ensuite bath access and a walk-in shower. If you enjoy the perfect mix of indoor and outdoor living, this home is made for you! Step outside from your home onto your bright, private terrace where sunshine and fresh air await — an ideal extension of your living space where you can entertain friends and family. Located in Portsmouth Green, Sage offers effortless access to upscale boutique shopping, restaurants, and fitness studios, just minutes from downtown Portsmouth. Photos and video may be of model home.

Home Facts

Condo

1 Bath

1 Bedroom

Built in 2025

Price Summary

499,900

$694 per Sq. Ft.

MLS #:

5070953

Last Updated:

January 19, 2026, 01:15 AM

Added:

1 month(s) ago

Rooms & Interior

Bedrooms

Total Bedrooms:

1

Bathrooms

Total Bathrooms:

1

Full Bathrooms:

1

Interior

Living Area:

720 Sq. Ft.

Structure

Structure

Building Area:

720 Sq. Ft.

Year Built:

2025

Finances & Disclosures

Finances

Price:

$499,900

Price per Sq. Ft:

$694 per Sq. Ft.

MLS Logo
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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80 Constitution Avenue #429
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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.