Flat for Sale in Portsmouth NH

Photo of 80 Constitution Avenue #226 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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25 photos

80 Constitution Avenue #226 Portsmouth NH 03801

$839,900

Beds: 2

Baths: 2

Sq Ft: 1,046

Days on Market: 82

Open: 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM, 3/5/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #317 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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25 photos

80 Constitution Avenue #317 Portsmouth NH 03801

$749,900

Beds: 2

Baths: 2

Sq Ft: 1,024

Days on Market: 54

Open: 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM, 3/5/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #403 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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28 photos

80 Constitution Avenue #403 Portsmouth NH 03801

$739,900

Beds: 2

Baths: 2

Sq Ft: 1,000

Days on Market: 56

Open: 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM, 3/5/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #201 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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28 photos

80 Constitution Avenue #201 Portsmouth NH 03801

$694,900

Beds: 2

Baths: 2

Sq Ft: 974

Days on Market: 25

Open: 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM, 3/5/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #331 Portsmouth NH 03801

Under Contract

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28 photos

80 Constitution Avenue #331 Portsmouth NH 03801

$599,900

Beds: 2

Baths: 2

Sq Ft: 975

Days on Market: 25

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #407 Portsmouth NH 03801

Open: Wednesday 11 am - 3 pm

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27 photos

80 Constitution Avenue #407 Portsmouth NH 03801

$594,900

Beds: 1

Baths: 1

Sq Ft: 833

Days on Market: 0

Open: 3/4/26 11 AM - 3 PM, 3/5/26 11 AM - 3 PM, 3/7/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #231 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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28 photos

80 Constitution Avenue #231 Portsmouth NH 03801

$589,900

Beds: 2

Baths: 2

Sq Ft: 974

Days on Market: 124

Open: 3/3/26 11 AM - 3 PM, 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #325 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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32 photos

80 Constitution Avenue #325 Portsmouth NH 03801

$554,900

Beds: 1

Baths: 1

Sq Ft: 723

Days on Market: 99

Open: 3/3/26 11 AM - 3 PM, 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #408 Portsmouth NH 03801

Under Contract

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32 photos

80 Constitution Avenue #408 Portsmouth NH 03801

$534,900

Beds: 1

Baths: 1

Sq Ft: 723

Days on Market: 43

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #321 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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32 photos

80 Constitution Avenue #321 Portsmouth NH 03801

$514,900

Beds: 1

Baths: 1

Sq Ft: 722

Days on Market: 124

Open: 3/3/26 11 AM - 3 PM, 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #429 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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32 photos

80 Constitution Avenue #429 Portsmouth NH 03801

$499,900

Beds: 1

Baths: 1

Sq Ft: 720

Days on Market: 92

Open: 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM, 3/5/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #209 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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32 photos

80 Constitution Avenue #209 Portsmouth NH 03801

$449,900

Beds: 1

Baths: 1

Sq Ft: 723

Days on Market: 46

Open: 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM, 3/5/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #306 Portsmouth NH 03801

Under Contract

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20 photos

80 Constitution Avenue #306 Portsmouth NH 03801

$429,900

Beds: 1

Baths: 1

Sq Ft: 615

Days on Market: 73

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #323 Portsmouth NH 03801

Under Contract

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27 photos

80 Constitution Avenue #323 Portsmouth NH 03801

$416,000

Beds: 1

Baths: 2

Sq Ft: 971

Days on Market: 105

Updated 12 Minutes Ago

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Photo of 90 Fleet Street #3-2 Portsmouth NH 03801

Under Contract

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18 photos

90 Fleet Street #3-2 Portsmouth NH 03801

$389,000

Beds: 1

Baths: 1

Sq Ft: 584

Days on Market: 12

Updated 12 Minutes Ago

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Photo of 80 Constitution Avenue #225 Portsmouth NH 03801

Open: Tuesday 11 am - 3 pm

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27 photos

80 Constitution Avenue #225 Portsmouth NH 03801

$380,000

Beds: 1

Baths: 1

Sq Ft: 723

Days on Market: 147

Open: 3/3/26 11 AM - 3 PM, 3/4/26 11 AM - 3 PM, 3/5/26 11 AM - 3 PM

Updated 12 Minutes Ago

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Photo of 90 Fleet Street #3-1 Portsmouth NH 03801

Under Contract

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12 photos

90 Fleet Street #3-1 Portsmouth NH 03801

$330,000

Beds: 1

Baths: 1

Sq Ft: 380

Days on Market: 36

Updated 12 Minutes Ago

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