Unique venue / Paseo del Prado · Barrio de las Letras

Palacio Neptuno: a hall under a glass dome for galas and presentations

The Palacio Neptuno is an early 20th-century building on Calle de Cervantes, restored as an event venue. Its main hall, Venus & Eunice, covers 900 m² under a glass dome and holds 350 people for dinner or 450 for a reception. We suggest it for gala dinners, presentations and company parties.

What kind of event suits the Palacio Neptuno?

The palace was refurbished to host large events and pairs an early 20th-century building with contemporary interior design. Its defining feature is the glass dome by artist Manuel Ortega above the main hall, which brings light and height to a 900 m² space.

It works for gala dinners of 150 to 350 guests, year-end parties, awards ceremonies and staged product launches. With several halls on different floors, you can hold drinks in one space and dinner in another without stripping the set.

Rooms and capacities

Hall m² Height Banquet Reception Theatre
Venus & Eunice 900 12 m 350 450 350
Calipso 450 4 m 250 300 200
Mirador Eunice 350 3.8 m 200 250 120
VIP 40 3.5 m 30 40 25

Source: Palacio Neptuno venue sheet, Madrid Convention Bureau. The same sheet mentions an auditorium, an open-air terrace and a welcome hall, and the option of using one floor for receptions, dinners and presentations from 50 people.

Getting there

The address is Calle de Cervantes 42, a few metres from Plaza de Neptuno. Metro stations are Banco de España (line 2) and Antón Martín (line 1), with Atocha, served by AVE high-speed and Cercanías commuter trains, about ten minutes on foot. The airport express bus stops at Cibeles and Atocha. Coaches can drop the group on Paseo del Prado for a short walk in.

Production tips

  • Drinks upstairs, dinner downstairs. Use the Mirador Eunice for the welcome while the main hall set-up is being finished.
  • The dome calls the shots. By day it lets in plenty of natural light. If your event starts before dark and includes projections, plan for LED screens rather than a projector.
  • Confirm figures by layout. The venue sheet gives several overall capacity figures that do not match. We work with the room-by-room figures in the table and validate them on the site visit.

What pairs well nearby

Opposite, across Paseo del Prado, is the Thyssen-Bornemisza National Museum, ideal for a private viewing before dinner. For accommodation, The Palace is a few steps away. If the day includes content sessions, the Ateneo de Madrid is on Calle del Prado.

Compare other unique venues in Madrid or tell us about your gala: we will send you a proposal within 24 business hours.

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Frequently asked questions

How many people does the Palacio Neptuno hold?

The Venus & Eunice hall takes 350 people for a banquet or theatre-style and 450 for a reception, according to the Madrid Convention Bureau venue sheet. The Calipso adds 250 for a banquet and 300 for a reception.

Does it have its own restaurant or catering?

Yes. The Madrid Convention Bureau venue sheet highlights the palace's in-house catering as its main service. The menu is developed with its team.

Is there space for drinks before dinner?

Yes. The 350 m² Mirador Eunice takes 250 people for a reception, and there is a 40 m² VIP room seating 30. The palace also has an open-air terrace and a welcome hall.

Tell us about your event

We reply with a proposal within 24 business hours. No obligation.

  • We send a proposal within 24 business hours.
  • ECM is part of MC Group and specialises in corporate events, congresses and MICE in Madrid, where the team has organised more than 100 corporate events.

Tell us about your event

We reply with a proposal within 24 business hours. No obligation.

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