Sheraton Portsmouth Harborside Hotel
1,280 sqm
Indoor Space
350
Plenary Capacity
300
Banquet Capacity
12
Breakout Rooms
—
Exhibition Halls
About this Venue
A downtown hotel and conference center overlooking the harbor, located in the historic district of Portsmouth, New Hampshire. It offers flexible event spaces with on-site catering and AV equipment, and is situated near prominent destinations like Jenness State Beach, the University of New Hampshire, the Portsmouth Naval Shipyard, and Prescott Park. The hotel blends classic New England charm with modern functionality, ideal for corporate offsites and various events.
Images
6 photos
Venue at a Glance
Venue Type
Convention Centre
City
Portsmouth
Country
US
Total Indoor Space
1,280 sqm
Max Plenary
350
Max Banquet
300
Breakout Rooms
12
Airport Distance
15 min
Full Address
250 Market St, Portsmouth, NH, 03801, US
Event Spaces & Rooms
18 configurable spaces
| Space Name | Type | Theatre | Classroom | Banquet | Reception | Area |
|---|---|---|---|---|---|---|
| Grand Ballroom | Ballroom | — | — | — | — | — |
| Prescott Room | General Event Space | — | — | — | — | — |
| Langdon | General Event Space | — | — | — | — | — |
| Harbor's Edge Room | General Event Space | — | — | — | — | — |
| Amphitheater | General Event Space | — | — | — | — | — |
| Riverwatch Room | General Event Space | — | — | — | — | — |
| John Paul Jones Room | Fixed Board Room | — | — | — | — | — |
| Daniel Webster Room | Fixed Board Room | — | — | — | — | — |
| Gardner Room | General Event Space | — | — | — | — | — |
| Lear Room | General Event Space | — | — | — | — | — |
| Roberts | General Event Space | — | — | — | — | — |
| Thaxter Room | General Event Space | — | — | — | — | — |
| Warner Room | General Event Space | — | — | — | — | — |
| Wentworth Room | General Event Space | — | — | — | — | — |
| Whipple | General Event Space | — | — | — | — | — |
| Langdon/Whipple | General Event Space | — | — | — | — | — |
| Whipple/Roberts | General Event Space | — | — | — | — | — |
| Woodbury Room | General Event Space | — | — | — | — | — |
Sustainability
The hotel is described as eco-conscious and implements several sustainable practices including a comprehensive recycling policy, at least 80% of lighting from LEDs, no plastic coffee stirrers, and water-efficient showers only.
Plan Your Event Here
Submit an RFP to get a customized proposal for your event at Sheraton Portsmouth Harborside Hotel.
Quick Facts
- Airport
- 15 min drive
- Breakout Rooms
- 12
- Indoor Space
- 1,280 sqm
Contact Information
Destination
Portsmouth, United States
North America — Northern America
View destination profileData Quality
Bronze
Last Verified
27 Mar 2026