# 80 Constitution Avenue, Portsmouth, NH 03801

> **TL;DR:** 1bd/1ba condo, $539,900 ($648/sqft), built 2025, 833 sqft. Est. $2,340/mo. Listed 60 days.

## Property at a Glance

| Attribute | Value |
|-----------|-------|
| Price | $539,900 |
| Price/sqft | $648 |
| Bedrooms | 1 |
| Bathrooms | 1 full |
| Square Feet | 833 |
| Year Built | 2025 |
| Stories | 1 |
| Property Type | Condo (Condominium) |
| Status | For Sale |
| Days on Market | 60 |

## Estimated Monthly Costs

| Category | Amount |
|----------|--------|
| Mortgage (20% down, 6.5%) | $2,340 |
| **Total** | **$2,340** |

## Nearby Schools

- **Elementary:** Little Harbor School
- **Middle:** Portsmouth Middle School
- **High:** Portsmouth High School

## Property Highlights

- Built in 2025

## Description

### Agent Description
Experience elevated living at Sage Portsmouth, a premier new condominium community offering concierge services, a club room with terrace, fitness center, game lounge, pet spa, work-from-home spaces, and bike storage. Residence #307 showcases The Harrison, the largest 1-bedroom floor plan, thoughtfully designed to maximize space, light, and functionality. This desirable southeast-facing home features a double vanity in the ensuite bath, additional closet storage rarely found in a 1BR layout, and a private interior balcony that enhances everyday living. Eco-friendly flooring, custom cabinetry, quartz countertops, and under-cabinet lighting create a refined and modern aesthetic throughout. The spacious bedroom offers a walk-in closet and walk-in shower for added comfort and convenience.  This 1BR residence also includes two deeded parking spaces, a rare and valuable offering. Ideally located in Portsmouth Green, just minutes from downtown shopping, dining, and fitness studios. Now accepting reservations. Move-in ready. Schedule your private showing today.  Images are of model home.

## Location

- **Address:** 80 Constitution Avenue, Portsmouth, NH 03801
- **County:** Rockingham

## Listing Agent

- **Name:** Janet Slome
- **Brokerage:** JD Advisors, LLC
- **Phone:** 6039190645
- **Email:** jslome@jdadvisors.com

## Primary Photo

![80 Constitution Avenue - Primary Photo](http://lh.rdcpix.com/5e6ca22a9285dd2265b4c6da80bf0ed7l-f2900702166r.jpg)

*24 total photos available on [listing page](https://www.propertysimple.com/listing/80-constitution-avenue-portsmouth-nh-03801-5081801)*

---

**MLS#:** 5081801 | **Updated:** 2026-06-19
**Source:** listhub

*Copyright © 2026 PrimeMLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.*

[View on PropertySimple](https://www.propertysimple.com/listing/80-constitution-avenue-portsmouth-nh-03801-5081801)

---

## Structured Data

```json
{
  "@context": "https://schema.org",
  "@type": "RealEstateListing",
  "name": "80 Constitution Avenue, Portsmouth, NH 03801",
  "description": "Experience elevated living at Sage Portsmouth, a premier new condominium community offering concierge services, a club room with terrace, fitness center, game lounge, pet spa, work-from-home spaces, and bike storage. Residence #307 showcases The Harrison, the largest 1-bedroom floor plan, thoughtfully designed to maximize space, light, and functionality. This desirable southeast-facing home features a double vanity in the ensuite bath, additional closet storage rarely found in a 1BR layout, and ",
  "url": "https://www.propertysimple.com/listing/80-constitution-avenue-portsmouth-nh-03801-5081801",
  "image": "http://lh.rdcpix.com/5e6ca22a9285dd2265b4c6da80bf0ed7l-f2900702166r.jpg",
  "datePosted": "2026-06-19",
  "price": 539900,
  "priceCurrency": "USD",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "80 Constitution Avenue",
    "addressLocality": "Portsmouth",
    "addressRegion": "NH",
    "postalCode": "03801",
    "addressCountry": "US"
  },
  "numberOfBedrooms": 1,
  "numberOfBathroomsTotal": 1,
  "numberOfFullBathrooms": 1,
  "floorSize": {
    "@type": "QuantitativeValue",
    "value": 833,
    "unitCode": "FTK"
  },
  "yearBuilt": 2025
}
```