Nobles Island is a waterfront condominium community at 500 Market Street, positioned along the North Mill Pond and close to downtown Portsmouth. CP Management describes the association as a 50-unit condominium with both residential and commercial uses. Its location on a tidal basin gives the community a distinctive maritime setting while keeping residents close to the city's historic downtown.

The residential portion consists primarily of townhouse-style homes arranged within a low-rise condominium setting. Public property records and listings place the development's construction around 1982, with individual listings commonly describing two-story townhouse residences. The architecture is consistent with a compact waterfront condominium development rather than a high-rise or large garden-apartment complex.

Nobles Island's primary lifestyle advantage is its waterfront setting and proximity to Portsmouth's pedestrian-oriented downtown. Association services reported in recent listings include landscaping, snow/plowing services, trash removal, and general condominium expenses. There is also shared parking, while the property's position on the North Mill Pond provides the community with a strong waterfront character.

The community is particularly convenient for residents who want quick access to downtown restaurants, shops, theaters, Prescott Park, Strawberry Banke, and the Portsmouth waterfront. Market Street also provides direct connections to I-95 and the wider Seacoast, while Portsmouth's schools and employment centers are nearby. The combination of waterfront surroundings and downtown accessibility is one of Nobles Island's strongest distinguishing features.