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  • Listed by: Redfin Corporation • Joanne Rodrigues
    Bought with: KW Coastal and Lakes & Mountains Realty
    $727,000

    107 Union Street, Portsmouth, NH 03801

    4beds
    1,445sqft
    Condominium, Townhouse
    Built in 1870
    -- sqft lot
    $742,200 Zestimate®
    $503/sqft
    $4,487 Estimated rent

    Home value

    $742,200

    $690,000 - $802,000

    $4,487/mo

    Zestimate® history
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    What's special

    Panoramic viewsGas fireplaceCozy private bedroomsStunning private gardenCustom built-insFully-fenced backyardSoaring ceilings
    This exceptional 4BD/2BA townhome in Portsmouth's desirable Little Harbour neighborhood features original wide pine floors, crown molding, and new designer finishes throughout. Built in 1870, this home has been lovingly renovated and kept beautifully updated. The sun-drenched first floor showcases a living room with soaring ceilings and gas fireplace, elegant dining room with custom built-ins and a second fireplace, and the chef's kitchen with premium stainless appliances and quartz countertops — all flowing to an enchanting sunny porch with panoramic views of the unusually-large stunning private garden nestled behind the house. The second floor offers a custom marble-topped full master bathroom featuring spa-like finishes, double sinks, and convenient hidden washer/dryer, plus a second full bath with classic clawfoot soaking tub. At the top of the hidden third floor staircase await two additional cozy, private bedrooms and abundant closet space. The updated house systems, partial-finished large basement, and whole-house water filtration with reverse osmosis drinking water will keep you comfy all year long. Modern amenities include a Nest smart system and radiant heated floors in both bathrooms — perfect on a chilly winter morning! Outside, your private oasis awaits with a fully-fenced backyard perfect for entertaining — or pets! Unbeatable location — close to downtown, parks, Music Hall, shops, and schools. Pet-friendly!

    Zillow last checked:

    Listing updated:

    Listed by:

    Joanne Rodrigues,

    Redfin Corporation 603-733-4257

    Bought with:

    Justin Kelcourse

    KW Coastal and Lakes & Mountains Realty

    Source: PrimeMLS,MLS#: 5064284MLS Logo

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 4
    • Bathrooms: 2
    • Full bathrooms: 2
    Heating
    • Natural Gas, Hot Air
    Cooling
    • Central Air
    Features
    • Basement: Unfinished,Interior Entry
    Interior area
    • Total structure area: 1,964
    • Total interior livable area: 1,445 sqft
    • Finished area above ground: 1,445
    • Finished area below ground: 0

    Property

    Parking
    • Parking features: On Street
    • Has uncovered spaces: Yes
    Features
    • Levels: 2.5
    • Stories: 2.5
    Lot
    • Features: City Lot, Level, Sidewalks, Street Lights, Near Shopping
    Details
    • Parcel number: PRSMM0145B0068L1
    • Zoning description: GRC

    Construction

    Type & style
    • Home type: Townhouse
    • Property subtype: Condominium, Townhouse
    Materials
    • Wood Frame, Wood Siding
    • Foundation: Stone
    • Roof: Fiberglass,Asphalt Shingle
    Condition
    • New construction: No
    • Year built: 1870

    Utilities & green energy

    • Electric: 200+ Amp Service, Circuit Breakers
    • Sewer: Public Sewer
    • Utilities for property: Cable Available

    Community & HOA

    HOA
    • Additional fee info: Fee: $150
    Location
    • Region: Portsmouth

    Financial & listing details

    • Price per square foot: $503/sqft
    • Tax assessed value: $891,900
    • Annual tax amount: $9,971
    • Date on market: 10/3/2025

    Price history

    DateEventPrice
    11/12/2025Sold$727,000+4%$503/sqft
    Source: PrimeMLS #5064284 Report a problem
    10/3/2025Listed for sale$699,000+14.2%$484/sqft
    Source: PrimeMLS #5064284 Report a problem
    1/21/2020Sold$612,333-2%$424/sqft
    Source: Public Record Report a problem
    11/1/2019Price change$624,900-0.8%$432/sqft
    Source: Great Island Realty LLC #4780057 Report a problem
    10/10/2019Listed for sale$629,900+46.5%$436/sqft
    Source: Great Island Realty LLC #4780057 Report a problem
    1/13/2017Sold$429,900+31.9%$298/sqft
    Source: PrimeMLS #4514314 Report a problem
    10/2/2009Sold$326,000$226/sqft
    Source: Public Record Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2024$9,971 +11.5%$891,900 +60.8%
    2023$8,946 +6.1%$554,600
    2022$8,430 +3.4%$554,600
    2020$8,153 -1.1%$554,600
    2019$8,241 +27.9%$554,600 +36.3%
    2018$6,444 +3%$406,800
    2017$6,257 +7.8%$406,800 +19.5%
    2016$5,802 +1.5%$340,500
    2015$5,717 -0.6%$340,500 +7.2%
    2014$5,749 +3.1%$317,600
    2012$5,574 +1.6%$317,600
    2011$5,485 -0.8%$317,600
    2010$5,529 $317,600
    Find assessor info on the county website

    Neighborhood: 03801

    Nearby schools

    GreatSchools rating
    Schools provided by the listing agent
    • Elementary: Little Harbor School
    • Middle: Portsmouth Middle School
    • High: Portsmouth High School
    • District: Portsmouth

    Source: PrimeMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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    Estimated market value
    $742,200
    Get a cash offer in 3 minutes
    Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
    Estimated market value
    $742,200