Inception In the mid-19th century, King
Leopold I dreamed of turning the uninhabited
Koekelberg Plateau in north-western Brussels into a royal residence. Following his death, his son, King
Leopold II, envisaged building a Belgian Panthéon dedicated to great Belgians there. Inspired by the French
Panthéon in
Paris, it was intended to commemorate the 50th anniversary of
Belgian independence. However, the king dropped this project due to a lack of funds and of enthusiasm from the population. It is nonetheless still attested today by the two large avenues adjoining the site: the / ("National Glories Avenue"), and the / ("Pantheon Avenue"). In 1902, Leopold II visited the
Basilique du Sacré-Cœur of Paris, and inspired by it, decided to build a pilgrimage church back home, a national shrine to the
Sacred Heart of
Jesus. While he saw the opportunity to build his national Panthéon at the
Namur Gate in
Ixelles, Leopold II accepted that the land of Koekelberg be ceded by the to the
Catholic Church with the intent of building the national basilica there instead. The deed of donation of of land was signed on 12 December, and confirmed on 31 December through a
royal decree.
Neo-Gothic basilica (1905–1914) The initial vision of the
Leuven-based architect was a sumptuous
neo-Gothic basilica, inspired by the "ideal cathedral" of French architectural theorist
Eugène Viollet-le-Duc. Langerock envisaged an edifice bristling with six towers of a hundred metres or more, the highest of which would have stood at above the
crossing. Leopold II laid the first stone on 12 October 1905, during celebrations commemorating the 75th anniversary of Belgian independence. Foundation works began in 1909, but the project was delayed due to the king's death on 17 December 1909. Financing the basilica's construction also soon became a problem, so only the foundations had been finished when
World War I broke out. In his pastoral letter for
Christmas 1914,
Cardinal Mercier gave the basilica a new meaning: File:Basilica Koekelberg.jpg|
Neo-Gothic design for the National Basilica of the Sacred Heart by (1905) File:Koning LeopoldII bij het verlaten van de voorlopige kerk van het Heilig-Hart in Ganshoren.jpg|King
Leopold II leaving the provisional church for the laying of the first stone (12 October 1905) File:Cartoon depicting King Leopold 2 of the Belgians laying the first stone of the Basilica of Koekelberg.jpg|Cartoon depicting Leopold II laying the first stone (12 October 1905)
Art Deco basilica (1919–present) On 29 June 1919, King
Albert I and a large crowd associated themselves with this promise in a ceremony on the Koekelberg Plateau. However, it was impossible to resume Langerock's plan due to the state of public finances. A new design, in
Art Deco style with
neo-Byzantine inspiration by the
Ghent architect , was thus adopted. In 1925, a 1/40
scale model of this final design won the great architectural prize at the
International Exhibition of Modern Decorative and Industrial Arts in Paris. This model, produced with great care, still stands today in the basilica. The adaptation and extension of the existing foundations were undertaken from January 1926, and building the
apse began in August 1930. Following Van Huffel's death on 16 March 1935, the construction was taken over by his assistant, the architect-engineer Paul Rome. Cardinal
Jozef-Ernest van Roey consecrated the unfinished basilica and opened it for worship on 14 October 1935, after obtaining special permission from
Pope Pius XI. The base of the
cupola had been finished in 1940 when
World War II stalled work again. Building resumed in September 1944, and the main
nave was completed in 1951. The basilica was consecrated by Cardinal Van Roey on 13 and 14 October 1951, and
Pope Pius XII elevated it to the rank of
minor basilica on 28 January 1952. In 1953, the two towers were completed. The south
transept opened in 1958, and the north transept in 1962. The cupola and thus the external structure was finished in 1969, and on 11 November 1970, the ceremony for the 25th anniversary of the
episcopate of
Archbishop of Mechelen–Brussels, Cardinal
Leo Joseph Suenens, marked the basilica's completion. On 4 June 1995,
Father Damien was
beatified in the basilica by
Pope John Paul II. File:Basiliek-Koekelberg-herdenkingszegel-consecatie-1951.jpg|Postage stamp commemorating the basilica's consecration (14 October 1951) File:Heilig-Hartcollege-Ganshoren 1956.jpg|Rear view of the basilica and the Collège du Sacré-Cœur of
Ganshoren, File: Heilig-Hartcollege-Ganshoren 2019-07-21jpg.jpg|The same view as it appears today ==Building==