🌿 IMPT Hotels
London Marriott Hotel Grosvenor Square, london

Sustainable & green accommodation: IMPT lists eco-friendly hotels, green-certified stays, sustainable guesthouses, and responsible travel options — from carbon-neutral hotels and eco lodges to environmentally friendly B&Bs and net-zero accommodation. Every booking removes 1 tonne of verified CO₂ at the lowest price guarantee — same as Booking.com or better.

🌍 Your Carbon Impact at This Hotel

An average hotel night produces roughly 35 kg of CO₂ — from air conditioning, laundry, lighting, and food. When you book London Marriott Hotel Grosvenor Square through IMPT, we retire 1,000 kg of UN-verified carbon removal credits. That's not carbon-neutral. That's carbon-negative.

28×
more CO₂ removed than your stay produces
35 kg
CO₂ your stay produces
1,000 kg
CO₂ IMPT removes
4,100 km
of driving offset
50
trees' yearly work

How it works: IMPT funds the carbon removal from its booking commission — you pay €0 extra. Credits come from UN-verified regenerative agriculture projects, tokenised on Ethereum, with a public retire code anyone can verify. No double-counting. No greenwashing.

🏘️ The Neighbourhood

London Marriott Hotel Grosvenor Square is located in london, united-kingdom. The surrounding area offers local dining, shopping, and attractions within walking distance.

⭐ What Guests Say

London Marriott Hotel Grosvenor Square is rated 8.7/10 (Excellent) based on 1,889 verified guest reviews.

yohan ismael
2025-08-02T06:18:53.000Z
★★★★★
"A few weeks ago, I stayed at the Marriott Grosvenor Square and was very impressed with the quality of the room. Everything was clean, and extremely comfortable. I would like to give special recognition to Security Officer Muhammad Junaid, who was incredibly helpful and professional throughout my stay. His friendly and respectful manner truly made me feel safe and welcome.\n\nHowever, I did encounter a couple of challenges. It was quite difficult to locate a smoking area at night, which was inconvenient. Additionally, there was no designated area for prayer, which would be greatly appreciated by guests who require it.\n\nOverall, it was a pleasant stay with excellent service, particularly from the staff. With a few improvements, the experience could be even better."
Melinda Mathews
2025-07-16T11:58:24.000Z
★★★★☆
"Overall, this is a lovely hotel in a convenient location but an extremely busy location. The staff was outstanding and welcoming. Our room was on the first floor and we had a patio with a table and chairs off our room, which was very nice, which we did use. We did not use the instant coffee but went down to the M Club for coffee each morning. The breakfast buffet was average. The evening buffet was a bit better. Our room was well appointed, a nice size and bed was comfortable. It was nice our bottles water was replenished as we used them. Housekeeping came in twice a day to clean and then for turndown.\nThe bell men were very helpful in calling taxis for us.\nI had some interaction with the hotel manager and he was very helpful and accommodating."
Matthew Hanson
2025-05-26T21:55:15.000Z
★★★★☆
"Overall not a bad hotel, but given the price and location, there are definitely better options at the price point. The rooms have been kept very clean, but the bathrooms are starting to get a bit dated. Staff were very friendly. We had breakfast in the club each morning, which wasn’t awful, but left a few things to be desired. There was a limited selection of items, which did not change during our stay. We did find out from another guest that you could ask for hard boiled eggs, otherwise the buffet just has scrambled eggs which did contain milk."

🏨 Amenities

📶 Free wifi
👨‍👩‍👧 Family rooms
Non smoking rooms
💪 Fitness center
🅿️ Free Parking
🍽️ Restaurant(s)
📶 Free WiFi
🛏️ Room service
🛎️ 24 hour front desk
🎉 Banquet
🍸 Bars
👕 Laundry service
🧹 Dry cleaning service
Breakfast in room
Iron and board
Carbon Neutral Stay
UN-Verified Carbon Removal
Best Rate Guarantee
Free Cancellation Available
📶 Free Wifi
💪 Fitness Center
🅿️ Parking
📶 Wifi
🛏️ Room Service
🛎️ 24 Hour Front Desk
👕 Laundry Service
📶 Internet access
🛗 Lifts
Express check in
🔐 Safe
Currency exchange

💰 Price Guide

Rooms at London Marriott Hotel Grosvenor Square start from approximately £250/night for a standard double. Booking through IMPT matches Booking.com prices — and new members get a €5 signup credit on their first booking.

Tip: Book through IMPT to save up to 10% vs Booking.com, get a €5 signup credit, and automatically retire 1 tonne of CO₂ — all at no extra cost.

📍 Location

{'street': 'Grosvenor Square', 'city': 'London', 'region': '', 'postal_code': '', 'country': 'United Kingdom'}

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🌿 London Marriott Hotel Grosvenor Square from £250/night. Save 10% vs Booking.com. Every booking removes 1 tonne CO₂. €5 free credit for new members.
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❓ Frequently Asked Questions

How much does London Marriott Hotel Grosvenor Square cost per night?

Rooms at London Marriott Hotel Grosvenor Square start from approximately £250/night. Booking through IMPT matches Booking.com prices — new members also receive a €5 signup credit.

Is London Marriott Hotel Grosvenor Square worth the price?

At 8.7/10 from 1,889 verified reviews, London Marriott Hotel Grosvenor Square is rated Excellent. At £250/night for a 5-star london hotel, it offers solid value — especially with IMPT's 10% discount.

Does London Marriott Hotel Grosvenor Square have parking?

Yes — London Marriott Hotel Grosvenor Square offers free on-site parking. This is a significant advantage, as central hotel parking can be expensive.

Does London Marriott Hotel Grosvenor Square have a restaurant?

Yes. London Marriott Hotel Grosvenor Square has an on-site restaurant. Many rates include breakfast. Room service may also be available.

What is the carbon impact of staying at London Marriott Hotel Grosvenor Square?

An average hotel night produces ~35 kg of CO₂. When you book London Marriott Hotel Grosvenor Square through IMPT, 1,000 kg (1 tonne) of UN-verified carbon credits are retired — 28× what your stay produces. This costs you nothing; IMPT funds it from its commission.

Is booking through IMPT more expensive than Booking.com?

No — IMPT rates are consistently up to 10% cheaper for the same room. Plus a €5 signup credit for new customers and a best-rate guarantee.

Is free cancellation available at London Marriott Hotel Grosvenor Square?

Yes, most rates include free cancellation, typically up to 48 hours before check-in. The full policy is shown before you confirm.

What are the check-in and check-out times at London Marriott Hotel Grosvenor Square?

Check-in is from 15:00 and check-out is by 11:00. Early check-in and late check-out can be requested, subject to availability.

What neighbourhood is London Marriott Hotel Grosvenor Square in?

London Marriott Hotel Grosvenor Square is located in london. The surrounding area offers a mix of local restaurants, shops, and attractions. See the Neighbourhood section above for specific distances and walking times.

Is London Marriott Hotel Grosvenor Square good for families?

Yes — London Marriott Hotel Grosvenor Square offers family rooms, and is well-suited for families visiting london.

How does IMPT's carbon removal work?

IMPT funds UN-verified carbon removal from its booking commission — regenerative agriculture projects, tokenised on Ethereum with public verification. No double-counting, no greenwashing. You pay the same (or less); the planet benefits.

Is London Marriott Hotel Grosvenor Square an eco-friendly hotel?

When booked through IMPT, London Marriott Hotel Grosvenor Square becomes carbon-negative — 1 tonne of CO₂ is retired per booking, which is 28× more than an average hotel night produces. IMPT makes any hotel a green choice without changing the price.

What is the best time to visit london?

Prices and availability vary by season. Check IMPT for the latest rates at London Marriott Hotel Grosvenor Square — booking early typically gets the best price, especially during peak season.

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