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Hotel · Buenos Aires · City of Buenos Aires

Castelar Hotel & Spa - Buenos Aires

A 4-star hotel on Avenida de Mayo with a pool, spa, and a central location near Teatro Avenida.

  • Swimming pool and spa & wellness centre on site
  • Wi-Fi, air conditioning, and heating in rooms
  • Check-in from 15:00 to 23:59
7.3 good 493 reviews Booking.com 7.3 · 493 reviews

About

Castelar Hotel & Spa - Buenos Aires

Castelar Hotel & Spa sits on Avenida de Mayo, within easy walking distance of Teatro Avenida. The 4-star property offers a swimming pool, a restaurant, a bar/lounge area, and a spa & wellness centre.

Rooms range from Small Twin and Double rooms to Standard Apartments and Standard Twin, Triple, and Double rooms. All include a shower, heating, and air conditioning; larger categories add a bathtub.

  • Wi-Fi
  • Lift
  • Air conditioning
  • Heating
  • Mini-bar
  • Restaurant

In brief

What works, what to weigh

+

Strengths

4 reasons to book
  • Historic character and architecture — Multiple guests highlight the old-world charm, impressive facade, and details like the circular staircase.
  • Central location on Avenida de Mayo — Close to Teatro Avenida, with buses and an underground station at the front door, making sightseeing easy.
  • Included breakfast buffet — Guests repeatedly praise the plentiful and varied buffet, including fresh fruit, served each morning.
  • Free access to a large spa — Several guests note the daily free use of the spa as a significant bonus.

Worth weighing

4 to weigh
  • Rooms can be small — Guests mention rooms are not large, especially in the Small Twin and Small Double categories.
  • Elevator needs refurbishment — One guest explicitly notes the elevator is dated and in need of updating.
  • Breakfast service can get crowded — A returning guest suggests the self-service breakfast needs better organisation, with more service points for coffee refills.
  • Potential billing concerns — One guest reported repeated lobby requests about a credit card issue, feeling the hotel focused on money.

01 — Rooms

Rooms & rates

High season: summer dates usually book out a few weeks ahead.

Small Twin Room

  • Shower
  • Heating
  • Air conditioning

Standard Apartment without cleaning service

  • Shower
  • Heating
  • Air conditioning

Standard Twin Room

  • Shower
  • Heating
  • Bathtub
  • Air conditioning

Standard Triple Room

  • Shower
  • Heating
  • Bathtub
  • Air conditioning

Standard Double Room

  • Shower
  • Heating
  • Bathtub
  • Air conditioning

02 — Amenities

Services & amenities

Everything included at this stay — the facilities and essentials, at a glance.

General

  • Wi-Fi
  • Lift
  • Air conditioning
  • Heating
  • Mini-bar

Food & Drink

  • Restaurant
  • Bar/Lounge area

Leisure

  • Swimming pool
  • Spa & wellness centre

03 — Reviews

What guests say

Recent verified reviews from guests who stayed here.

7.3
good 493 reviews

Guest-rated 7.3/10 from 493 reviews

Booking.com · 7.3 · 493 reviews
7.3Verified guest

“Rooms were clean and comfortable, with a spacious newly renovated bathroom. The central location made sightseeing easy, breakfast buffet was good, and staff were helpful. Secure storage was available.”

7.3Verified guest

“The so-called spa.”

7.3Verified guest

“The lobby asked about a credit card every day because of some problem, but it felt like the hotel was only thinking about money.”

7.3Verified guest

“The charm and history captivated us immediately. Beautifully maintained rooms and a fine circular staircase added to the allure. We were surprised by live music and a delicious buffet breakfast that turned the space into a notable bar and cafe. Attentive staff made the stay better. Highly recommend for a nice experience.”

7.3Verified guest

“Reception made us welcome and immediately granted a room overlooking the main avenue even though we arrived 4 hours before check-in. Bathroom was adequate, bed was good, linens changed daily, and breakfast was good each morning. Free daily access to the excellent spa was a big bonus. Rooms aren't large, but at this price, especially with buses and the underground station at the front door, they're a bargain.”

7.3Verified guest

“We were very disappointed with Buenos Aires as a city. It was filthy dirty, and no shops were open on Sundays or public holidays. The beautiful old buildings were in a bad state, and the whole city needs cleaning up.”

04 — Location

Getting around Buenos Aires

The property sits in Buenos Aires.

Location: On Avenida de Mayo, within easy walking distance of Teatro Avenida. Buses and an underground station are at the front door.

Av. De Mayo 1152 C1085Abo Buenos Aires Argentina, Buenos Aires, City of Buenos Aires, 1085, Argentina

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05 — Good to know

Policies & conditions

Hotel details are shown for reference. Final rate terms are confirmed on the partner’s site at booking.

Check-in
From 15:00-23:59
Check-out
By 10:00
Cancellation
Free cancellation on many rates — terms on booking page
Payment
Pay-at-hotel available on many rates; final terms at booking
Pets
Not allowed
Property
151 rooms

06 — Questions

Frequently asked

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

Check-in is from 15:00 to 23:59, and check-out is by 10:00.

Are pets allowed at the hotel?

No, pets are not allowed.

Does the hotel have a swimming pool?

Yes, the hotel has a swimming pool.

Is breakfast included?

Guests consistently mention that breakfast is included and served as a buffet, with many praising its variety and quality.

Is there a spa on site?

Yes, the hotel has a spa & wellness centre. Several guests mention free daily access to the spa as part of their stay.

Do rooms have air conditioning and heating?

Yes, all listed room types include air conditioning and heating, as well as a shower.

The bottom line

A historic 4-star on Avenida de Mayo that earns praise for its character, location, and breakfast, though rooms are compact and some details show age. Best for travellers who value old-world atmosphere and a central base over modern luxury.

7.3Based on 493 guest reviews with an average rating of 7.3

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