80 Constitution Avenue, Unit 406Portsmouth, NH 03801MLS Number 5107819

Price: $429,900
Est. Mortgage of $/month
1 Day on Market

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 #406 is the final studio residence in the building & on the top floor. Far from your typical studio, it is thoughtfully designed and features a separate sleeping area with a generous closet and pocket doors for added privacy. Oversized windows, a smart layout, and premium finishes create a space that truly stands out. Enjoy treetop views and an abundance of natural light adding a touch of serenity and an extra layer of charm to this exceptional home. Located in Portsmouth Green, Sage offers effortless access to upscale boutique shopping, restaurants, and fitness studios, just minutes from downtown Portsmouth. Book a private showing today. We are so excited to welcome you home. Photos and video may be of model home.

More Info

Rooms

Full Bath1

Building

Year Built2025
ConstructionCement Exterior
GarageNo
Unit Number406
Total Rooms2
FoundationPoured Concrete

Property

AreaNH-Rockingham
Property TypeCondo
Road FrontageTBD
DrivewayCommon/Shared, Paved
RoadsAssociation, Paved, Public
Lot DescriptionCondo Development, Wooded

Other

Fee IncludesLandscaping, Plowing, Trash
HOA Fee$290
Date Price Change09/02/2026
FrequencyMonthly
Unadjusted TaxesYes
SurveyedYes
SeasonalNo
Time ShareNo
Association AmenitiesClubhouse, Exercise Facility, Indoor Storage, Landscaping, Common Acreage, Elevator(s)
Date Listed09/02/2026

Basic Information

List Price$429,900
Square Feet615
StatusACT
Bedrooms1
Bathroom1
StyleFlat, Garden
New ContructionNew Construction
MLS Number5107819
MLS StatusActive

Interior

FloorsCeramic Tile, Other
Interior FeaturesKitchen/Dining, Living/Dining, Primary BR w/ BA, Smart Thermostat
Stories1

Utilities

Electric150 Amp Service
WaterPublic Water On-Site
Heating CoolingElectric, Heat Pump
SewerPublic Sewer On-Site
UtilitiesCable at Site, Underground Utilities

Location

TownPortsmouth
StateNH
Zip03801
CountyRockingham
ZoningResidential
ComplexSage Portsmouth
DistrictPortsmouth
Flood ZoneNo
Elementary SchoolLittle Harbor School
Junior HighPortsmouth Middle School
High SchoolPortsmouth High School
Address80 Constitution Avenue

Exterior

Exterior ColorWhite/Grey
RoofMembrane

Amenities

PetsCats OK, Dogs OK, Number Limit
PricePerSqFt699.02

Copyright 2026 PrimeMLS, Inc. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this display 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. Data last updated September 3, 2026 7:08 AM UTC

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80 Constitution Avenue, Unit 406Portsmouth, NH 03801MLS Number 5107819

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