Office profile
Endesa Headquarters & offices · Madrid, Spain
Endesa · Madrid, Spain
Spain's biggest electricity company works around a glass atrium that ventilates the whole building — no conventional air-conditioning.
The Madrid head office by KPF, who works there and the road from a 1944 coal plant in León to the Enel Group — from Endesa's own pages and the architect's project page.
- ≈ 10,000employees
- 10 million+customers
- Since 1944founded on 18 November
- 33,000 sq ftcentral atrium
Sources: endesa.com · KPF project page
Companies / Spain / Utilities / Electricity / Endesa
THE HEAD OFFICE · BARAJAS, MADRID
A courtyard turned into the building's lungs
KPF, working with Rafael de La-Hoz Arquitectos, took the large internal courtyard of Spanish building tradition and turned it into a climate-controlled atrium for Madrid's harsh winters. The 33,000 sq ft atrium acts as the building's lungs: with operable windows, it ventilates the 90,400 m² head office naturally, with no conventional air-conditioning. It is also the main circulation space, welcoming visitors and employees, and the flexible work spaces are arranged around it.
- 90,400 m²
- 33,000 sq ft atrium
- Natural ventilation
- No conventional air-conditioning
- Operable windows
- KPF + Rafael de La-Hoz
The atrium
A 33,000 sq ft atrium is the building's main circulation space and its natural ventilation shaft.

Around the building
The head office sits in Madrid's Barajas district, on the city's north-east side.







Facts: KPF project page “Endesa Headquarters”
Head office, Madrid
| Building | Address |
|---|---|
| Head office | Barajas district, Madrid, Spain |
Source: KPF project page
Source: KPF project page
Working at the head office
Operable windows and the atrium ventilate the building without conventional air-conditioning.
Work floors open onto a daylit atrium.
Work spaces are flexible and adaptable over time.
Endesa has been part of the Enel Group since the first quarter of 2009.
Source: KPF project page · endesa.com
What the building gives the people inside
The atrium and operable windows ventilate the building naturally, so it needs no conventional air-conditioning.
The atrium is the main circulation space, welcoming visitors and employees alike.
Work spaces around the atrium are flexible and can adapt to the company's needs over time.
The design turns the Spanish tradition of large internal courtyards into a climate-controlled space for Madrid's harsh winters.
Source: KPF project page
Who works here
employees
customers
free-market electricity customers (Q1 2026)
Source: endesa.com, Who we are · Q1 2026 results
Pay at Endesa
Endesa doesn't publish a median employee pay figure on the pages we checked.
Source: endesa.com
Endesa doesn't publish pay by age.
From a coal plant in León to a breathing building in Madrid
- 1944 Founded
Endesa was founded on 18 November 1944. A year later work started on the Compostilla thermal power plant, which went into production in 1957.
Source: endesa.com, Our history

Compostilla II power station, Cubillos del Sil (León) — the later plant that carried on the name of Endesa's first power station · Silvia Alba / CC BY 2.0 · Wikimedia Commons - 1990s Growth by acquisition
In 1991 Endesa bought 87.6% of Electra de Viesgo and stakes in Fecsa and Sevillana de Electricidad, and in 1993 55% of Hidroeléctrica de Cataluña.
Source: endesa.com, Our history
No free-to-use photo found yet.Have one? We’d love to add it. - 2009 Part of the Enel Group
Enel bought Acciona's shares and became Endesa's main shareholder.
Source: endesa.com, Our history · Who we are
No free-to-use photo found yet.Have one? We’d love to add it. - Today The atrium building
Endesa's head office in Madrid's Barajas district, designed by KPF, ventilates itself through a 33,000 sq ft atrium.
Source: KPF project page
No free-to-use photo found yet.Have one? We’d love to add it.
What Endesa does
Endesa is the leading company in Spain's electricity sector and the second-biggest operator in Portugal's electricity market. It generates, distributes and sells electricity and gas, mainly in Spain and Portugal.
Generation, distribution and the sale of electricity, gas and related products and services, as part of the Enel Group.
Source: Endesa Q1 2026 results press release · endesa.com
Chief executives
Chief Executive Officer.
Founded on 18 November 1944; its first project was the Compostilla thermal power plant in León.
Source: Endesa Q1 2026 results press release · endesa.com, Our history
Endesa: questions people ask
Where is Endesa's head office?
In Madrid's Barajas district, in a building designed by KPF.
Source: KPF project page · Wikimedia Commons
What is special about the building?
A 33,000 sq ft atrium and operable windows ventilate it naturally, so it needs no conventional air-conditioning.
Source: KPF project page
How big is it?
About 90,400 m² (972,600 sq ft).
Source: KPF project page
How many people work at Endesa?
About 10,000.
Source: endesa.com, Who we are
How old is Endesa?
It was founded on 18 November 1944.
Source: endesa.com, Our history
Who owns Endesa?
It has been part of the Enel Group since 2009.
Source: endesa.com
You have seen the office, the benefits and the pay
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