A.
Any citizen and resident of this City owning a dwelling house and land upon which such dwelling house is situate, which constitutes the place of his domicile and which is being used by him as his actual residence and which contains not more than one dwelling unit besides the dwelling unit of the owner thereof, shall be exempt from taxation on the real property constituting such dwelling house and the land upon which it is situated and reasonably necessary to the enjoyment of such use of said dwelling house in an amount of $5,000 or 50% of its true valuation, whichever is the lesser. Said requirement of ownership shall be satisfied by the holding of the beneficial interest where the legal title thereto is held by another for the benefit of said citizen and resident.
B.
In the case where such resident is not the sole owner of such dwelling house and land, the exemption granted shall be in the same ratio to the total exemption permitted by this article as the value of the interest owned by such citizen and resident bears to the total value of such house and land, but in no case shall such exemption be greater than $5,000 or 50% of the true value of such owner's interest, whichever is the lesser. Tenants by the entirety shall be entitled jointly to a single exemption, as provided herein, in the same manner and to the same extent as though their real property was owned by one of them.