How many event spaces does The Westin Washington National Harbor have?

The Westin Washington National Harbor has 6 event spaces totaling 5,824 sq ft.

What is the largest event space at The Westin Washington National Harbor?

The largest event space at The Westin Washington National Harbor is Potomac Conference Room, which holds up to 150 guests across 1,860 sq ft.

What is the banquet capacity of Potomac Conference Room at The Westin Washington National Harbor?

Potomac Conference Room seats up to 100 guests in a banquet layout.

How many people fit in Potomac Conference Room theater-style?

Potomac Conference Room holds up to 120 guests in a theater setup.

What are the dimensions of Potomac Conference Room?

Potomac Conference Room measures 30 × 62 ft (1,860 sq ft) with 14 ft ceilings.

The Westin Washington National Harbor — Event Spaces, Floor Plans & Capacities

171 Waterfront St, Oxon Hill, MD 20745

The Westin Washington National Harbor in Oxon Hill offers 6 event spaces across 5,824 sq ft541 m² of function space. The largest room, Potomac Conference Room, hosts up to 150 guests. Explore the floor plans and capacity charts below, or start arranging your own layout in the free planner.

Across its 6 spaces, The Westin Washington National Harbor handles theater-style sessions for up to 120, seated banquets for 100 and standing receptions for 150. One smaller room suits breakouts and board meetings. Exact figures for every room and setup style are in the chart below.

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Floor plans

Detailed floor plans for The Westin Washington National Harbor are published on the venue’s official site.

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Room capacities & dimensions

Room capacities and dimensions for The Westin Washington National Harbor
Space	Sq ft / m²	Ceiling	Banquet	Theater	Classroom	Reception	Conference	U-Shape
BoardroomPlan this room →	352 sq ft33 m²	14 ft4.3 m	16	20	18	20	12	12
Harbor TrailPlan this room →	—	—	50	—	—	100	—	—
Potomac APlan this room →	810 sq ft75 m²	14 ft4.3 m	32	60	40	80	20	20
Potomac BPlan this room →	1,050 sq ft98 m²	14 ft4.3 m	64	80	60	100	26	25
Potomac Conference RoomPlan this room →	1,860 sq ft173 m²	14 ft4.3 m	100	120	80	150	48	40

Additional spaces (dimensions only) (1)

Additional spaces with published dimensions only at The Westin Washington National Harbor
Space	Sq ft / m²	Ceiling
Pre-FunctionPlan this room →	1,752 sq ft163 m²	—

Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.

Frequently asked questions

How many event spaces does The Westin Washington National Harbor have?: The Westin Washington National Harbor has 6 event spaces totaling 5,824 sq ft.
What is the largest event space at The Westin Washington National Harbor?: The largest event space at The Westin Washington National Harbor is Potomac Conference Room, which holds up to 150 guests across 1,860 sq ft.
What is the banquet capacity of Potomac Conference Room at The Westin Washington National Harbor?: Potomac Conference Room seats up to 100 guests in a banquet layout.
How many people fit in Potomac Conference Room theater-style?: Potomac Conference Room holds up to 120 guests in a theater setup.
What are the dimensions of Potomac Conference Room?: Potomac Conference Room measures 30 × 62 ft (1,860 sq ft) with 14 ft ceilings.

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The Westin Washington National Harbor — Event Spaces, Floor Plans & Capacities

Floor plans

Room capacities & dimensions

Frequently asked questions

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