View 518 New Castle Avenue Portsmouth, NH MLS# 5114173
  • Recently Listed
Save 518 New Castle Avenue Portsmouth, NH MLS# 5114173
1 of 60
$35,000,000
6

Beds

7.2

Baths

13,451

Sq.Ft.

518 New Castle Avenue

Portsmouth, NH

NNEREN
Courtesy of COMPASS NEW ENGLAND, LLC
View 720-750 Lafayette Road Portsmouth, NH MLS# 5104438
Save 720-750 Lafayette Road Portsmouth, NH MLS# 5104438
1 of 12
$12,500,000
41,599

Sq.Ft.

720-750 Lafayette Road

Portsmouth, NH

NNEREN
Courtesy of KW COASTAL AND LAKES & MOUNTAINS REALTY
View 40 Congress Street Portsmouth, NH MLS# 5084657
Save 40 Congress Street Portsmouth, NH MLS# 5084657
1 of 2
$10,000,000

40 Congress Street

Portsmouth, NH

NNEREN
Courtesy of THE BOULOS COMPANY
The time to sell is now! THE TIME TO SELL IS NOW!
View 15 Pickering Avenue Portsmouth, NH MLS# 5109617
  • Virtual Tour
Save 15 Pickering Avenue Portsmouth, NH MLS# 5109617
1 of 32
$9,500,000
4

Beds

3.1

Baths

3,049

Sq.Ft.

15 Pickering Avenue

Portsmouth, NH

NNEREN
Courtesy of TATE & FOSS SOTHEBY'S INTERNATIONAL RLTY
View 720 Lafayette Road Portsmouth, NH MLS# 5105875
Save 720 Lafayette Road Portsmouth, NH MLS# 5105875
1 of 5
$7,500,000
17,700

Sq.Ft.

720 Lafayette Road

Portsmouth, NH

NNEREN
Courtesy of KW COASTAL AND LAKES & MOUNTAINS REALTY
View 20 Atkinson Street Portsmouth, NH MLS# 5097197
  • Virtual Tour
Save 20 Atkinson Street Portsmouth, NH MLS# 5097197
1 of 40
$5,900,000
3

Beds

3.1

Baths

3,116

Sq.Ft.

20 Atkinson Street

Portsmouth, NH

NNEREN
Courtesy of TATE & FOSS SOTHEBY'S INTERNATIONAL RLTY
View 70 Maplewood Avenue # 403 Portsmouth, NH MLS# 5105932
Save 70 Maplewood Avenue # 403 Portsmouth, NH MLS# 5105932
1 of 57
$5,699,000
5

Beds

3.1

Baths

5,195

Sq.Ft.

70 Maplewood Avenue # 403

Portsmouth, NH

NNEREN
Courtesy of THE ALAND REALTY GROUP
View 395 Little Harbor Road Portsmouth, NH MLS# 5108874
Save 395 Little Harbor Road Portsmouth, NH MLS# 5108874
1 of 45
$5,200,000
4

Beds

3.0

Baths

3,049

Sq.Ft.

395 Little Harbor Road

Portsmouth, NH

NNEREN
Courtesy of THE ALAND REALTY GROUP
View 55 Green Street # 407 Portsmouth, NH MLS# 5099913
Save 55 Green Street # 407 Portsmouth, NH MLS# 5099913
1 of 12
$4,250,000
3

Beds

3.1

Baths

2,130

Sq.Ft.

55 Green Street # 407

Portsmouth, NH

NNEREN
Courtesy of COLDWELL BANKER REALTY - CHESTNUT HILL
View 55 Green Street # 405 Portsmouth, NH MLS# 5101219
Save 55 Green Street # 405 Portsmouth, NH MLS# 5101219
1 of 13
$4,195,000
3

Beds

3.1

Baths

2,370

Sq.Ft.

55 Green Street # 405

Portsmouth, NH

NNEREN
Courtesy of COLDWELL BANKER REALTY - CHESTNUT HILL
View 233 Vaughan Street # #301 Portsmouth, NH MLS# 5112309
  • Recently Listed with Virtual Tour
Save 233 Vaughan Street # #301 Portsmouth, NH MLS# 5112309
1 of 60
$3,795,000
3

Beds

3.1

Baths

3,183

Sq.Ft.

233 Vaughan Street # #301

Portsmouth, NH

NNEREN
Courtesy of SAMONAS REALTY, LLC
View 53 Austin Street Portsmouth, NH MLS# 5095121
Save 53 Austin Street Portsmouth, NH MLS# 5095121
1 of 34
$3,600,000
6

Beds

5.1

Baths

7,648

Sq.Ft.

53 Austin Street

Portsmouth, NH

NNEREN
Courtesy of TATE & FOSS SOTHEBY'S INTERNATIONAL RLTY
View 53 Austin Street Portsmouth, NH MLS# 5095216
Save 53 Austin Street Portsmouth, NH MLS# 5095216
1 of 34
$3,600,000
10

Beds

7.0

Baths

7,648

Sq.Ft.

53 Austin Street

Portsmouth, NH

NNEREN
Courtesy of TATE & FOSS SOTHEBY'S INTERNATIONAL RLTY
View 54 Maplewood Avenue # #1 Portsmouth, NH MLS# 5090820
Save 54 Maplewood Avenue # #1 Portsmouth, NH MLS# 5090820
1 of 3
$3,440,000

54 Maplewood Avenue # #1

Portsmouth, NH

NNEREN
Courtesy of THE BOULOS COMPANY
View 31 Pleasant Point Drive Portsmouth, NH MLS# 5095255
  • Virtual Tour
Save 31 Pleasant Point Drive Portsmouth, NH MLS# 5095255
1 of 47
$3,395,000
4

Beds

4.1

Baths

5,728

Sq.Ft.

31 Pleasant Point Drive

Portsmouth, NH

NNEREN
Courtesy of SAMONAS REALTY, LLC
View 55 Green Street # 505 Portsmouth, NH MLS# 5095580
Save 55 Green Street # 505 Portsmouth, NH MLS# 5095580
1 of 11
$3,380,000
3

Beds

3.1

Baths

1,835

Sq.Ft.

55 Green Street # 505

Portsmouth, NH

NNEREN
Courtesy of COLDWELL BANKER REALTY - CHESTNUT HILL
View 144 Washington Street Portsmouth, NH MLS# 5072167
Save 144 Washington Street Portsmouth, NH MLS# 5072167
1 of 42
$3,300,000
3,034

Sq.Ft.

144 Washington Street

Portsmouth, NH

NNEREN
Courtesy of THE ALAND REALTY GROUP
View 144 Washington Street Portsmouth, NH MLS# 5072206
Save 144 Washington Street Portsmouth, NH MLS# 5072206
1 of 41
$3,300,000
2

Beds

1.2

Baths

3,034

Sq.Ft.

144 Washington Street

Portsmouth, NH

NNEREN
Courtesy of THE ALAND REALTY GROUP
View 55 Green Street # 206 Portsmouth, NH MLS# 5098983
Save 55 Green Street # 206 Portsmouth, NH MLS# 5098983
1 of 11
$2,995,000
3

Beds

3.1

Baths

1,900

Sq.Ft.

55 Green Street # 206

Portsmouth, NH

NNEREN
Courtesy of COLDWELL BANKER REALTY - CHESTNUT HILL
View 18 Congress Street # 302 Portsmouth, NH MLS# 5105594
Save 18 Congress Street # 302 Portsmouth, NH MLS# 5105594
1 of 24
$2,899,000
3

Beds

2.1

Baths

2,195

Sq.Ft.

18 Congress Street # 302

Portsmouth, NH

NNEREN
Courtesy of CAREY GIAMPA, LLC/RYE

About South End

Listings in South End, Portsmouth, NH

126

Estimated median home price

$1,260,000
South End, Portsmouth Real Estate

Search South End, New Hampshire Real Estate Listings & New Homes for Sale in South End, NH. Find South End Houses, Townhouses, Condos, & Properties for Sale at Weichert.com

Homes for Sale by Price in South End, Portsmouth, NH

Price Count
$0 - 100K 0
$100K - 200K 3
$200K - 300K 2
$300K - 400K 4
$400K - 500K 13
$500K - 600K 7
$600K - 700K 4
$700K - 800K 8
$800K - 900K 12
$900K - 1M 5
$1M - Max 68

Homes for Sale by Type in South End, Portsmouth, NH

Property Type Count
Single Family 37
Townhouse 0
Condo 60
Commercial 22
Rental 53
Lots and Land 2
Condo/Town/CoOp 0
CoOp 0
Multi Family 5
Mobile Home 0
Farms 0

(Data as of 10/17/2026)

Information deemed reliable but not guaranteed.

“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 10/19/2026”

Trends Information provided by ATTOM Data Solutions.