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History · Basque Country, Bilbao

Casa de Juntas and the Tree of Gernika

  • EraEarly modern to contemporary
  • AdmissionFree
  • HoursTypically open daily with set hours; confirm on the Juntas Generales de Bizkaia site

The Casa de Juntas of Gernika stands on Allende Salazar Kalea in Gernika-Lumo, Biscay, in the Basque Country of Spain. It is the seat of the Juntas Generales de Bizkaia, the assembly that has represented the lordship and province of Biscay since the Middle Ages, and the home of the Tree of Gernika, the oak that symbolises Basque foral rights.

The Basque assembly house with stained glass and gardens containing the successor of the old oak.

The Casa de Juntas of Gernika stands on Allende Salazar Kalea in Gernika-Lumo, Biscay, in the Basque Country of Spain. It is the seat of the Juntas Generales de Bizkaia, the assembly that has represented the lordship and province of Biscay since the Middle Ages, and the home of the Tree of Gernika, the oak that symbolises Basque foral rights. For centuries, the lords of Biscay swore to respect the fueros, or traditional laws, beneath an oak at Gernika, and Spanish monarchs continued the oath into the modern era. The present assembly house was built in the 1820s to host the Juntas, and a 20th-century extension added a debating chamber. The building is neoclassical in character, with a sober portico, and the assembly hall is decorated with a large stained-glass ceiling completed in 1985, which depicts the Tree of Gernika and the Basque lands. The old oak itself, whose trunk is preserved as a relic in a small temple in the garden, was replaced by successive saplings, and the current tree is a descendant of the original lineage. The town of Gernika-Lumo was bombed on 26 April 1937 during the Spanish Civil War by the German Condor Legion and the Italian Aviazione Legionaria, an attack that killed many civilians and inspired Picasso's painting Guernica. The Casa de Juntas and the oak survived, and this contributed to their symbolic importance as survivals of Basque identity. The site comprises the assembly building, a chamber, a library and the gardens, with sculpture and memorials. Visitors usually tour the debating chamber, the stained-glass hall and the garden, and a short exhibition explains the history of the fueros. The approach is symbolic and chronological, linking medieval custom to the modern autonomy of the Basque Country. The building and trees are well maintained, and the site is free to visit. Gernika is reachable from Bilbao by train in about an hour.

Practical information for Casa de Juntas and the Tree of Gernika · Last updated September 2026
Admission Free
Hours Typically open daily with set hours; confirm on the Juntas Generales de Bizkaia site
Address Allende Salazar Kalea, 48300 Gernika-Lumo, Biscay, Spain

Why it matters

The seat of the assembly of Biscay and the oak that symbolises Basque foral rights, in the town bombed on 26 April 1937 during the Spanish Civil War.

Location

Allende Salazar Kalea, 48300 Gernika-Lumo, Biscay, Spain

43.3164, -2.6787 View on map

Highlights

  • Seat of the Juntas Generales de Bizkaia
  • Stained-glass ceiling of the assembly hall
  • Descendant of the Tree of Gernika, symbol of Basque foral rights
  • Preserved trunk of the old oak in the garden temple
  • Free entry and gardens in a town linked to the 1937 bombing

Tips for visiting

  • Take the Euskotren train from Bilbao to Gernika, about an hour each way
  • Check the Juntas Generales website for current opening hours
  • Combine with the Gernika Peace Museum, a short walk away
  • Visit on weekdays when assembly sessions may limit access to the chamber
  • Allow time in the gardens to see the old trunk and the new oak

When to visit

Weekday mornings are generally quiet. Monday market day in Gernika is lively, and 26 April brings commemorations.

Accessibility

The building and gardens have access arrangements for visitors with reduced mobility, but paths in the garden may be uneven. Confirm details with the Juntas Generales before visiting.

Frequently asked questions

Is entry to the Casa de Juntas free?

Yes, entry is reported as free. Hours may change during assembly sessions.

Is the site English-language friendly?

Basic information is typically available in Spanish and Basque, with some English. Confirm with the site about audio or printed guides.

How long does a visit take?

About 45 minutes to one hour covers the chamber, stained glass and garden.