April 3. On this date in 1952, Shoghi Effendi wrote "joyful news of final implementation of agreement with Israel authorities involving acquisition, against payment of hundred eighteen thousand dollars, of eighteen plots, approximately six acres, in precincts of Báb's Sepulcher."

April 3. On this date in 1952, Shoghi Effendi wrote "joyful news of final implementation of agreement with Israel authorities involving acquisition, against payment of hundred eighteen thousand dollars, of eighteen plots, approximately six acres, in precincts of Báb's Sepulcher."

The Historic Process
Announce to National Assemblies of East and West joyful news of final implementation of agreement with Israel authorities involving acquisition, against payment of hundred eighteen thousand dollars, of eighteen plots, approximately six acres, in precincts of Báb's Sepulcher.
The historic process of establishment of international Bahá'í endowments on Mount Carmel, inevitably held in abeyance for fifty years after the inception of the Faith, initiated on the morrow of Bahá'u'lláh's Ascension, through the purchase, in the course of 'Abdu'l-Bahá's ministry, of a limited number of plots in the immediate surroundings of the newly erected Tomb in the heart of the Mountain of God, and greatly accelerated through the purchase of extensive properties following the Master's passing, necessitated by the unprecedented influx of immigrants to the Holy Land, is now further reinforced, raising the total area owned on the slopes of the Holy Mountain to almost fifty acres.
Desire to acknowledge the indefatigable efforts exerted by the first western Bahá'í pilgrim since opening of the door of pilgrimage, Lawrence Hautz, in hastening the successful termination of the protracted negotiations with the civil authorities of the Holy Land.
--Shoghi
[Cablegram, April 3, 1952]

Later that year, on November 12, 1952, a cablegram sent by Shoghi Effendi announced the "acquisition of vitally-needed property" of the Mansion of Bahji and the area around it from "the Development Authority of the State of Israel...The exchange of said property, including land and houses, was made possible by the precipitate flight of the former Arab owners."

Acquisition of Vitally-Needed Property
Announce to Bahá'í communities, East and West, on the joyous occasion of the hundred and thirty-fifth Anniversary of Bahá'u'lláh's Birthday, the successful termination of the protracted negotiations, initiated two years ago and culminating in the signature to the contract providing the eventual, formal transfer by the Development Authority of the State of Israel to the Palestine Branch of the American National Spiritual Assembly of the extensive, long-desired, vitally-needed property surrounding and safeguarding for posterity the Most Holy Tomb of the Founder of the Faith, as well as the adjoining Mansion.
The acquired area, raising Bahá'í holdings on the holy plain of &Akka from four thousand to one hundred and fifty-five thousand square meters, was exchanged against property donated by children of Zikrullah, grandchildren of Mírzá Muhammad Quli, Bahá'u'lláh's faithful half-brother and companion in exile.
This spontaneous offer contrasts with the shameful action of the family in the sale to non-Baha'is of the property in the neighborhood of the Jordan valley purchased through the instrumentality of `Abdu'l-Bahá during Bahá'u'lláh's lifetime, pursuant to His instructions and alluded to in His writings.
The forty acre property acquired in this single transaction almost equals the entire Bahá'í international endowments purchased in the course of sixty years in the vicinity of the Báb's Sepulcher on the slope of Mount Carmel.
The exchange of said property, including land and houses, was made possible by the precipitate flight of the former Arab owners, traditional supporters of the old Covenant-breakers and descendants of the notorious enemy of `Abdu'l-Bahá who placed his residence at the disposal of the Committee of Investigation.
The signature to the agreement signalized the commencement of large-scale landscaping, aiming at the beautification of the immediate precincts of the holiest spot in the entire Bahá'í world, itself the prelude to the eventual erection, as happened in the case of the Báb's Sepulcher, of a befitting Mausoleum enshrining the precious Dust of the Most Great Name.
Desire to acknowledge the indefatigable efforts exerted by both Larry Hautz and Leroy Ioas enabling the consummation of the initial stage of the enterprise destined to eclipse in its final phase the splendor and magnificence of the Báb's resting-place on Mount Carmel.
--Shoghi
[Cablegram, November 12, 1952]

On December 16, 1950, a little over a year after the international recognition of the State of Israel, the mansion at Mazra'a was leased from the Israeli government by the Bahá'í Administrative Order. Bahá'u'lláh lived there from 1877 until 1879, before moving to the Mansion at Bahjí.
The transaction is described in Baha'i News, no. 244, June 1951, p. 4

Masra'ih is a Moslem religious endowment, and it is consequently impossible, under existing laws in this country, for it to be sold. However, as the friends are aware, the Ministry of Religions, due to the direct intervention of the Minister himself, Rabbi Maimon, consented, in the face of considerable opposition, to deliver Masra'ih to the Baha'is as a Holy Place to be visited by Baha'i pilgrims. This means that we rent it from the Department of Moslem and Druze affairs in the Ministry of Religions. The head of this Department is also a Rabbi, Dr. Hirschberg. Recently he, his wife and party, visited all the Baha'i properties in Haifa and 'Akka, following upon a very pleasant tea party in the Western Pilgrim House with the members of the International Baha'i Council.

The mansion at Mazra'a would later be purchased by the Bahá'í Administrative Order from the Israeli government as reported in Messages from the Universal House of Justice 1968-1973, published 1976; Ridván Message 1973, p. 119

The Mansion of Mazra'ih, often referred to by the beloved Guardian as one of the "twin mansions" in which the Blessed Beauty resided after nine years within the walled prison-city of 'Akká, and dear to the hearts of the believers by reason of its associations with their Lord, has at last been purchased together with 24,000 square meters of land extending into the plain on its eastward side.