The best summer parties are the ones that guests are still talking about months later. And it all starts with the right venue.
A grand entrance and a large roof terrace with uninterrupted views over Hyde Park, right in the middle of one of London’s most prestigious postcodes. That’s what awaits guests at No.4 Hamilton Place, making it a standout summer party venue in Westminster.
Whether you’re planning a corporate reception in the sunshine or a summer party for your team, here’s why No.4 deserves a place at the top of your shortlist.
A hidden gem in the heart of Mayfair
We asked our Event Sales Manager, Olivia Easby, if there’s anything about hosting a summer party at No.4 that tends to surprise guests who haven’t visited before, and she said: “Guests have been surprised with the venue itself – it’s hidden away, and the roof terrace is quite a large space for the area we are in. A lot of them wouldn’t have known we were on that road.”
No.4 Hamilton Place sits just steps from Hyde Park Corner, and despite its extraordinary location, it remains under the radar. This just adds to the magic, leaving guests genuinely wowed from the moment they arrive.
The venue itself is a beautifully preserved Grade II listed building, home to the Royal Aeronautical Society. So, whether it’s your first time at the venue or you return every year for your summer party, our Edwardian townhouse is certain to leave a lasting impression on your guests.
“We couldn’t have asked for a better evening, and I think I have seen on LinkedIn that Steve even posted ‘best ever’.” – Media People
The Terrace: your summer party backdrop
The rooftop terrace is the real highlight of any summer event at No.4, and rightly so. Spacious, elegant, and with fantastic views over Hyde Park, it provides a setting that guests will talk about long after the evening ends. From summer receptions to sunny BBQs, this memorable space provides an impressive backdrop for up to 200 guests.
And for those worried about the unpredictable British summers – we’ve got it covered. A stretch tent covering half of the terrace means the outdoor space remains accessible, even in wet weather. The elegant Argyll Room is available as a fully indoor alternative, providing a beautiful setting for the summer celebrations to continue. We also have several smaller indoor spaces available, from the sophisticated Marshall of Cambridge Room & Foyer to the spacious Handley Page Room, and the Sopwith Room located opposite.
Summer party catering by Company of Cooks
No summer party is complete without food, and the catering provided by our in-house partner, Company of Cooks, consistently sets the standard. Their summer offerings centre around fresh, seasonal produce, from vibrant salads to high-quality meats, homemade bread, and indulgent desserts. Company of Cooks also offer bespoke menus tailored to match any theme, along with food stations showcasing seasonal favourites for a relaxed evening event. Thoughtful options are available to accommodate guests with dietary requirements, including vegan, vegetarian, gluten-free, and allergy-sensitive choices, with no compromise on flavour or presentation.
“Many thanks for looking after us this year, once again. Food was lovely as always.” – Connection Capital
Summer party entertainment
No.4 Hamilton Place has versatile spaces to accommodate a range of entertainment choices for your summer party. Live bands and DJs are the most popular choices, enhancing the atmosphere and keeping guests’ energy high. A steel band on the terrace has also proven a hit for past events, filling the outdoor space with music that matches the setting perfectly. We work with a diverse range of suppliers to help with every element of your summer party, from florists to musicians and entertainment specialists.
Expert support from enquiry to event day
Planning a summer event in Westminster should feel exciting, not stressful. Our dedicated events team is here to make the process seamless, so you can focus on enjoying the occasion.
When asked what differentiates us from other Westminster venues for summer events, Olivia said: “The team and how motivated we are to ensure every event runs smoothly and guests have a memorable event.”
From the first enquiry, you’re looked after by a dedicated member of the events team, who remains your point of contact through to the day itself. Our General Manager then takes charge on the floor during the event, ensuring everything runs seamlessly.
70% of our business is from returning clients: a true testament to the welcoming and accommodating events team.
“Thank you so much for organising and executing such a great evening, the food was delicious, and your staff were really wonderful dealing with such a crowd. Everyone really enjoyed themselves.”- AIFS
Ready to plan your summer party at No.4?
From the Hyde Park views, to the exceptional food, and the team who genuinely care about getting every detail right, No.4 Hamilton Place offers a summer party experience that’s difficult to find anywhere else in Westminster. Whether you’re hosting 50 guests or 200, our team would love to talk through what’s possible for your summer party.
Download the 2026 summer party brochure or get in touch with our team to start planning your event.
Enquiry form: https://www.4hp.co.uk/contact-us/
Phone: 020 7670 4314
Email: hello@4hp.org.uk
FAQs
Where is No.4 Hamilton Place located?
No.4 Hamilton Place is situated just moments from Hyde Park Corner in the heart of Mayfair, Westminster. We’re surrounded by excellent transport links, including tube, rail, bus, and there is a taxi rank just outside our front door.
How many guests can you accommodate for a summer party?
The rooftop terrace can accommodate up to 200 guests for summer receptions and BBQs, making it ideal for team celebrations and large corporate receptions. We also have several smaller indoor spaces available for more intimate gatherings.
What happens if the weather is bad on the day of our event?
A stretch tent covers half of the terrace, so the outdoor space remains usable in wet weather. The Argyll Room is also available as a fully indoor alternative, along with several other indoor spaces, including the Marshall of Cambridge Room & Foyer, the Handley Page Room, and the Sopwith Room.
Is catering available for my summer party?
Yes. Catering is provided by Company of Cooks, our in-house catering partner. Known for their fresh, seasonal menus, they offer bespoke options tailored to any theme, whilst accommodating any dietary requirements, including vegan, vegetarian, and gluten-free.
Is entertainment available?
Yes. No.4 Hamilton Place can support a range of entertainment options, including live bands and DJs. From florists to musicians and entertainment specialists, our events team works with a diverse range of suppliers to bring your vision to life.
How do I get in touch to start planning my summer party?
To start planning your summer party, please get in touch with the team by emailing hello@4hp.org.uk, calling us on 020 7670 4314, or filling in our enquiry form.
