The Sagrada Família: A living Project Management case study

In project management we obsess about three constraints: scope, schedule and budget. Rarely does a single project illustrate the tension between them more dramatically than Barcelona’s Sagrada Família.

1) A Schedule Without a Deadline (…for a Very Long Time)

Construction of the Sagrada Família began in 1882 under architect Francisco de Paula del Villar; Antoni Gaudí took over in 1883 and transformed it into his life’s work. When Gaudí died in 1926, less than a quarter of the basilica was complete. For decades there was no realistic finish date. Interruptions - most notably the Spanish Civil War - and the loss of Gaudí’s plans only compounded uncertainty.

In the early 21st century, project planners set 2026 (the 100th anniversary of Gaudí’s death) as a symbolic completion date for the main structures, especially the tallest central tower. However, decorative elements, interior work and ancillary features (like the controversial grand entrance stairway) are now expected to extend into the mid-2030s.



This makes the Sagrada Família one of the longest-running construction projects in history, approaching 150 years and counting, yet still deeply relevant and alive.

A useful comparison is the Sydney Opera House, which began construction in 1959 with an expected delivery of 1963 and ultimately opened in 1973, 10 years behind schedule and dramatically over budget, yet today is celebrated not as a failure but as a monumental success.

2) Scope: From Cross to Cathedral to Cultural Icon

The project’s scope has not been static. Early plans envisaged a monumental Christian cross configuration that would have required demolishing entire city blocks in Barcelona’s Eixample district, a plan that would be socially and politically untenable today. Over time, the focus shifted to building the basilica itself, and the symbolic cross of the Christian faith is now expressed primarily through the central tower dedicated to Jesus Christ, not as an urban-scale structure.

This evolution reflects a unique interpretation of scope, less as “scope creep” and more as scope negotiation across generations, adjusting to cultural values, urban constraints and stakeholder expectations.

3) Budget: Finance Through Visitors, Not Governments

Unlike most large-scale heritage or civic projects, the Sagrada Família is not financed by state or church funds. From the beginning, it has relied on private donations, and in the modern era its primary funding source is ticket sales, which bring in millions of euros annually. Tourism revenue now directly supports ongoing construction, turning the budget constraint into a living mechanism rather than a fixed baseline.

In 2024 the basilica attracted around 4.9 million visitors, making it one of Europe’s most visited monuments... despite being unfinished!

4) A Project That Breaks the Rules — and Still Succeeds

By traditional PMI standards, the Sagrada Família would seem to fail:

- Schedule: No fixed deadline for most of its existence, regularly revised and extended.
- Scope: Evolved radically from its original concept.
- Budget: Dependent on market-driven revenue, not fixed capital allocations.

And yet the project has become a global icon, a UNESCO World Heritage Site, and a thriving cultural and religious destination that draws millions of visitors each year.

Projects such as the Sydney Opera House remind us that late and over budget does not inherently mean failure. What matters more is impact, enduring value, adaptability, and stakeholder engagement over time.

The Sagrada Família challenges many of the assumptions we make about what defines project success.

- Can a project still be considered successful if scope, schedule, and budget are never fully stabilized?

- At what point does long-term value outweigh delivery efficiency?

- Are there projects today (e.g. digital, infrastructure, or product-based) that should be managed more like living systems than finite initiatives?

And perhaps the most uncomfortable question of all: how many potentially great projects do we cancel too early because they don’t fit our traditional success criteria?