80 Constitution Avenue, Portsmouth, NH
Condominium
Listed by JD Advisors, LLC · Janet Slome
Property Description
Buyers searching Portsmouth, New Hampshire will want a look at 80 Constitution Avenue — a condominium asking $579,900. It features 2 bedrooms, 2 bathrooms and 974 square feet of living space. As a condominium, it makes an easy lock-and-leave base: arrive Friday night, hand back the key Sunday, and let the association handle the rest. Also on the sheet: garage parking for 1, 2025 construction and roughly $595 per square foot. Everything below — photos, details, schools and market data — updates live from the MLS.
Newly repriced for the Fall Release. Ask about developer incentives and co-broke bonus. 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, and bike storage. Residence #311 features a bright, open-concept layout with abundant natural light streaming through oversized windows. The home’s premium finishes include a chef’s kitchen with a large freestanding island, a primary suite with a generous walk-in closet, and an ensuite bath with a beautifully tiled, stand-up shower. Need a second bedroom that doubles as an office or guest space? This residence has you covered. Step out onto your private balcony to savor a morning coffee or unwind with an evening glass of wine. Located in Portsmouth Green, Sage offers effortless access to upscale boutique shopping, restaurants, and fitness studios; also just minutes from downtown Portsmouth. Move-in ready! Book a private showing today. We are so excited to welcome you home. Open House, Model Homes: Saturday - Thursday, 11am - 3pm or By Appointment. GPS: 2454 Lafayette Road, Portsmouth. Photos and video may be of model home.
Location Highlights
80 Constitution Avenue is a condominium in Portsmouth, New Hampshire, listed at $579,900. That works out to about $595 per square foot, for a home built in 2025. It has been on the market for 10 days.
At this latitude, Portsmouth averages roughly 8.4 hours of sun a day in June and 3.6 in December.
Zoned schools in the Portsmouth: Little Harbor School (Elementary), Portsmouth Middle School (Middle), Portsmouth (High). Always confirm zoning with the district office.
Property Details
Essentials & finishes
- Bedrooms:2
- Total Baths:2
- Full Baths:2
- SqFt:974
- Price / SqFt:$595.38
- Property Type:Condominium
- Year Built:2025
- County:NH-Rockingham
- Town:Portsmouth, NH
- Status:Active
- Days on Market:10
Primary Features
Interior Features
Location Information
Financial Details
Additional
External Features
Property History
Annual taxes for this property
| Year | Assessed Tax |
|---|---|
| 2024 | $9,858 |
| 2023 | $9,612 |
| 2022 | $9,365 |
Estimated from list price; verify with the town assessor.
Market Data
Live snapshot computed from active listings in this town
- Active listings in Portsmouth120
- Average list price$1,160,650
- Price range$469,900 – $2,500,000
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- Principal & Interest$2,932
- Property Tax$822
- Home Insurance$121
Estimates use typical New Hampshire costs — a 1.7% effective property-tax rate, insurance at 0.25% of home value/yr, and PMI below 20% down. Actual town tax rates vary; verify with your lender and the town assessor.
Around This Property
Schools, everyday places and nearby destinations near 80 Constitution Avenue, Portsmouth, NH
Questions About This Listing
Can I still buy 80 Constitution Avenue?
The listing's current MLS status is Active. Reach out and we can confirm availability and arrange a showing.
What is the asking price of 80 Constitution Avenue?
80 Constitution Avenue in Portsmouth, NH is listed at $579,900.
That works out to about $595 per square foot.
How big is 80 Constitution Avenue?
The home has 2 bedrooms and 2 bathrooms.
It offers 974 square feet of living space.
Where is 80 Constitution Avenue located?
The property is in Portsmouth, New Hampshire (03801).
What is the MLS number for 80 Constitution Avenue?
The MLS number is #5107698 (PrimeMLS), listed on September 1, 2026.
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NOTE: This representation is based in whole or in part on data generated by PrimeMLS, Inc., which assumes no responsibility for its accuracy. The data relating to real estate displayed on this site comes in part from the IDX Program of PrimeMLS.
This listing data is intended 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.
Considering this property as a short-term rental?