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AC Hotel by Marriott Portsmouth Downtown/Waterfront

US$361
/ night

Avg. for September

AC Hotel by Marriott Portsmouth Downtown/Waterfront - Image 1
AC Hotel by Marriott Portsmouth Downtown/Waterfront - Room
AC Hotel by Marriott Portsmouth Downtown/Waterfront - Room
AC Hotel by Marriott Portsmouth Downtown/Waterfront - View from room
AC Hotel by Marriott Portsmouth Downtown/Waterfront - Reception

Select dates to see prices and availability

US$361
/ night

Avg. for September

Monthly average prices

Nightly prices at AC Hotel by Marriott Portsmouth Downtown/Waterfront average US$151 in the cheapest month (January) and US$361 in the most expensive month (September), based on the last 12 months.

Average nightly price at AC Hotel by Marriott Portsmouth Downtown/Waterfront by month, last 12 months (USD)
MonthAverage price
JanuaryUS$151
FebruaryUS$152
MarchUS$162
AprilUS$174
MayUS$242
JuneUS$297
JulyUS$319
AugustUS$358
SeptemberUS$361
OctoberUS$351
NovemberUS$199
DecemberUS$184

Most expensive: September (~US$361)

Cheapest: January (~US$151)

About this property

Take advantage of recreation opportunities such as a 24-hour fitness center, or other amenities including complimentary wireless internet access and gift shops/newsstands.
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  • Parking

  • Restaurant

  • Non-smoking rooms

  • Business centre

  • Dry cleaning

  • Banquet facilities

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Location

299 Vaughan Street, North End, Portsmouth, New Hampshire, United States of America

Market Square (0.3 Miles)

Jackson House Museum (0.3 Miles)

George Rodgers House (0.4 Miles)

Moffatt-Ladd House (0.4 Miles)

Discover Portsmouth (0.4 Miles)

John Paul Jones House Museum (0.4 Miles)


Room options

Suite, 1 King Bed with Sofa Bed

Room details

1 Extra-Large Double Bed
and
1 Sofa Bed

Sleeps 4

Air Conditioning
Wi-Fi (Free)
Laptop Workspace

Suite, 1 King Bed with Sofa Bed, Accessible Bathtub

Room details

1 Extra-Large Double Bed
and
1 Sofa Bed

Sleeps 4

Air Conditioning
Wi-Fi (Free)
Laptop Workspace

Room, 1 King Bed with Sofa Bed, Accessible Bathtub

Room details

1 Extra-Large Double Bed
and
1 Sofa Bed

Sleeps 4

Air Conditioning
Wi-Fi (Free)
Laptop Workspace

Room, 1 King Bed with Sofa Bed, Roll-In Shower

Room details

1 Extra-Large Double Bed
and
1 Sofa Bed

Sleeps 4

Air Conditioning
Wi-Fi (Free)
Laptop Workspace

Room, 2 Queen Beds

Room details

2 Large Double Beds

Sleeps 4

Air Conditioning
Wi-Fi (Free)
Laptop Workspace

Room, 1 King Bed with Sofa Bed, Hearing Accessible

Room details

1 Extra-Large Double Bed
and
1 Sofa Bed

Sleeps 4

Air Conditioning
Wi-Fi (Free)
Laptop Workspace

Room, 2 Queen Beds, Hearing Accessible

Room details

2 Large Double Beds

Sleeps 4

Air Conditioning
Wi-Fi (Free)
Laptop Workspace

Room, 1 King Bed with Sofa Bed

Room details

1 Extra-Large Double Bed
and
1 Sofa Bed

Sleeps 4

Air Conditioning
Wi-Fi (Free)
Laptop Workspace

Suite, 1 Bedroom

Room details

1 Extra-Large Double Bed

Sleeps 3

Air Conditioning
Wi-Fi (Free)
Laptop Workspace

Guest reviews

What guests think

AI-generated summary based on recent guest reviews

AC Hotel by Marriott Portsmouth Downtown/Waterfront draws strong praise for its clean, modern rooms, welcoming staff, and a highly rated rooftop bar/restaurant, alongside a walkable location near downtown dining, shops, and the waterfront.

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Facilities

Mixed

Cleanliness

Clean

Rooms

Modern

Service

Friendly

Location

Walkable

Dining

Enjoyable

Was this helpful?

10

James

IAN-logo

last month

·

Stayed 3 nights

Excellent property, super convenient to downtown. Love it!
Excellent property, super convenient to downtown. Love it!

8

Cara

IAN-logo

1 Aug 2026

·

Stayed 1 night

We enjoyed our stay in this nice hotel. My only complaint is the charge for items we did not need. We were charged in advance for purchasing snacks/bike ride/cocktails, and that was really annoying. I'd rather make up my own mind about what I want to spend my money on.
We enjoyed our stay in this nice hotel. My only complaint is the charge for items we did not need. We were charged in advance for purchasing snacks/bike ride/cocktails, and that was really annoying. I'd rather make up my own mind about what I want to spend my money on.

10

thea

IAN-logo

12 Jul 2026

·

Stayed 1 night

Lovely, clean hotel, conveniently located to all of downtown Portsmouth. Enjoyed drinks on the roof. Staff was super friendly and welcoming. Weird complaint: HATED the coffee machines in the room. Everything else is so thoughtful and deliberate, a weird offbrand machine that filters boiling water through single use plastic was just ick.
Lovely, clean hotel, conveniently located to all of downtown Portsmouth. Enjoyed drinks on the roof. Staff was super friendly and welcoming. Weird complaint: HATED the coffee machines in the room. Everything else is so thoughtful and deliberate, a weird offbrand machine that filters boiling water through single use plastic was just ick.

8

Marise

IAN-logo

10 Jul 2026

·

Stayed 3 nights

Valet staff was very nice
Valet staff was very nice

6

James

IAN-logo

6 Jul 2026

·

Stayed 1 night

The hotel, room, and restaurant were impeccable. The hotel is gorgeous, and the restaurant is amazing. The staff was not top-notch; our room was not ready upon our arrival, and they said they would text us when it was ready, but they never did. We were given a credit for the inconvenience, but no one told the morning staff, which created some conflict. Just annoying. Also, not noted is that there is significant construction surrounding the property, so the views in the pictures are not real. Each side is blocked by enormous condos being built. Currently, they begin working at 7 am, very loudly.
The hotel, room, and restaurant were impeccable. The hotel is gorgeous, and the restaurant is amazing. The staff was not top-notch; our room was not ready upon our arrival, and they said they would text us when it was ready, but they never did. We were given a credit for the inconvenience, but no one told the morning staff, which created some conflict. Just annoying. Also, not noted is that there is significant construction surrounding the property, so the views in the pictures are not real. Each side is blocked by enormous condos being built. Currently, they begin working at 7 am, very loudly.

Property policies

Check-in instructions

Everything you need to know for a smooth check-in.

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Check-in

Check-out

From 16:00 to 23:59

Before 11:00


Good to know

Additional policies and info about this property.

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Optional extras

Additional paid services you can request.

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FAQs about AC Hotel by Marriott Portsmouth Downtown/Waterfront

Is parking available at the property?

Yes, parking is available at the property. Guests must contact the property in advance to reserve onsite parking. The covered valet parking fee is USD 45 per night, which includes in/out privileges.


What type of breakfast is offered and what are the serving hours?

The hotel offers a buffet breakfast, which is approximately USD 22 for adults and USD 12 for children. The specific serving hours are not mentioned, so guests may want to inquire directly for details.


Does the property allow pets?

Yes, the property allows pets with a fee of USD 100.00 per accommodation, per stay. Service animals are exempt from fees.

What are the standard check-in and check-out times?

The standard check-in time is 16:00 and check-out time is 11:00. Early or late check-in/check-out may be available upon request, and guests should contact the property directly to arrange this.


What accessibility features are available for guests with disabilities?

The property offers disabled access features, including step-free entrances and wheelchair-accessible facilities in public areas and rooms. Specific details about bathrooms and pool access features are not mentioned.


Where is the property located in relation to key landmarks?

The hotel is situated less than a mile from Portsmouth’s historic downtown area, which is known for its unique shops, restaurants, and waterfront views. The Strawbery Banke Museum is just 0.5 miles away, and Portsmouth International Airport is a short 10-minute drive from the hotel.


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Prices for upcoming dates

September 2026
October 2026

Cheaper

Pricier

Average nightly price across deals, with taxes & fees.

Prices in USD for 2 guests, updated daily.



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