(3) Kegulations made or to be made under section 184 of the London Building Act 1894 shall apply to appeals under this Part of this Act to the tribunal of appeal.

(4) Subject to the provisions of this section the pro- visions of section 156 and sections 175 to 186 (inclusive) of the London Building Act 1894 shall apply to the tribunal of appeal and appeals thereto under this part of this Act as if the tribunal of appeal referred to in those sections were the tribunal of appeal constituted by this part of this Act.

26 (1) Where under the provisions of this Part of this increased Act or any regulations in force thereunder any building is Strict erected or any addition or alteration or other work is made surveyor in or done to or on any building the district surveyor shall casebe entitled with regard to such building addition altera- tion or other work to a fee equal to two and a half times the amount of the fee specified with regard to new buildings in Part of the Third Schedule to the London Building Act 1894 calculated as follows : Upon the area and height of the building as specified in the said Part of the said Third Schedule.

Upon the area and height of the addition (including therein such portion of the building as may be struc- turally affected by any alteration or other work necessitated by or involved in the making of the addition) as if such addition had been a new building of the same area and height.

Upon the area and height of the portion of the building structurally affected by the alteration or other work (not necessitated by or involved in the making of an addition) as if such portion had been a new building of the same area and height.