Ownership intelligence

Who controls the opportunity?

Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.

Owner contacts

Can we reach the decision maker?

Skip-traced phones and e-mails of the owner. Included with a plan.

Debts

What is owed, to whom, and when it comes due

Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.

Property tax · 2023

What does the county charge?

$17k

Tax billed · 2023

Assessed value$1.04M

Assessed land$490k

Assessed improvement$553k

Effective rate1.61%

Value estimate

· Nov 2026

$1.84M

$1.66M – $2.02M

AI approach$2.01M

Submarket $/SF estimate$1.81M

Realmo valuation models over county records and 17 qualifying comparable sales.

Recently sold

What actually traded nearby?

$451/SF

ZIP average, outlier-cleaned · 55 recorded sales of this use type

Observed band · Q1–Q3$278 – $770

Qualifying comparables17

Cap rate analysis

How does the asset earn?

No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.

Zoning insight

What can be built here?

CD4-L1

CD4-L1, CD4-L2, CD4-W, CD4 This façade type is not permitted in the Downtown Overlay District. Article 5A Character-Based Zoning As Amend...

General categoryMIXED_USE

JurisdictionPORTSMOUTH CITY

Location intelligence

Which uses thrive at this corner?

Best fit: Locksmith

Demand heat for this use is drawn on the map · LocInt grid

Demand index

Locksmith9.0

Laundry Service8.5

Pet Grooming Service8.2

54 Ct St Portsmouth, NH 03801-4439

County assessor Recorded deeds · 1 transfer 17 qualifying comp sales Zoning catalog

Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.

Comparables

6 recorded sales · 14 properties nearby

Address Sale price Sold Size

48 Market, Portsmouth, NH 03801 $2,200,000 Feb 2026 3,655 SF

1155 Sagamore, Portsmouth, NH 03801-5503 $1,740,000 Dec 2025 3,900 SF

49 Pleasant, Portsmouth, NH 03801-4517 $2,500,000 Jun 2022 6,329 SF

105 Market, Portsmouth, NH 03801-3703 $2,500,000 Aug 2021 6,460 SF

320 Un, Portsmouth, NH 03801-5052 $1,300,000 Jun 2019 4,070 SF

54 Daniel, Portsmouth, NH 03801-3829 $962,533 Jan 2019 4,167 SF

Sale prices and dates as our records hold them, one row per building. A deed can cover more of a building than the size shown, so read the price against the size rather than dividing one by the other.

Comparable nearby

Value Estimation
$635,000

4,684 SF

30 Hancock St

OFFICE/RESIDENTIAL (MIXED USE)

30 Hancock St, Portsmouth, NH 03801

View Details
Value Estimation
$590,000

4,101 SF

8 Bow St

OFFICE/RESIDENTIAL (MIXED USE)

8 Bow St, Portsmouth, NH 03801-3802

View Details
Value Estimation
$490,000

4,070 SF

320 Un St

OFFICE/RESIDENTIAL (MIXED USE)

320 Un St, Portsmouth, NH 03801-5052

View Details
Value Estimation
$715,000

6,585 SF

101 Market St

OFFICE/RESIDENTIAL (MIXED USE)

101 Market St, Portsmouth, NH 03801-3703

View Details
Value Estimation by Request
3,655 SF

48 Market St

OFFICE/RESIDENTIAL (MIXED USE)

48 Market St, Portsmouth, NH 03801

View Details
Value Estimation
$450,000

3,620 SF

112 State St

OFFICE/RESIDENTIAL (MIXED USE)

112 State St, Portsmouth, NH 03801-3826

View Details

Similar Nearby for Sale

$1,750,000

7,165 SF

Downtown Mixed-Use Property

Existing shell offers a redevelopment opportunity for commercial space with residential use above.

84-88 Pleasant St, Portsmouth, NH 03801

View Details
New

$1,650,000

3,186 SF

Mixed-Use Condominium with Private Entrance

The commercial suite combines private offices, meeting rooms, open workstations, and kitchen facilities.

51 Islington Street Units 4 & 5, Portsmouth, NH 03801

View Details
Contact for pricing
14,032 SF

Mixed-Use Shell Building

Existing structure supports redevelopment into street-level commercial space with residential units above.

84 Pleasant Street, Portsmouth, NH 03801

View Details
New

Contact for pricing

Mixed-Use Building with Roof Deck

Downtown Portsmouth property combines office, studio, and retail space, with options to occupy the spaces separately or together.

96 Penhallow Street, Portsmouth, NH 03801

View Details

Similar Nearby for Lease

Contact for pricing

Waterfront Mixed-Use Property

Downtown commercial space with river views, structured parking, and access to Portsmouth’s business, dining, and cultural district.

One Harbour Place, Portsmouth, NH 03801

View Details
$9,000/Mo

9,000 sqft

Mixed-Use Warehouse Suite

Industrial space combines offices, meeting facilities, support areas, and an open warehouse for storage, distribution, or light assembly.

300 Heritage Ave, Portsmouth, NH 03801

View Details
$26 SF/Yr

Mixed-Use Office-Retail Condominium

The interior combines private offices, meeting rooms, and open workspace with a full kitchen and two restrooms.

51 Islington Street Units 4 & 5, Portsmouth, NH 03801

View Details
$350-$700/Mo per office

Multi-Level Coworking Space

Flexible furnished or unfurnished work areas include access to shared kitchen facilities and a conference room.

3 Riverlake Street, Alton, NH 03801

View Details

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Includes: Price & PSF · Cap rate · Location · Zoning

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54 Ct St Portsmouth, NH 03801