Your understanding is the same as my understanding. Committees are to have open meetings.
Approving only by e-mail would require action without meetings and unanimous consent.
See:
VA ยง 55-510.1 [emphasis added]
A. All meetings of the board of directors,
including any subcommittee or other committee thereof, shall be open to all members of record. The board of directors shall not use work sessions or other informal gatherings of the board of directors to circumvent the open meeting requirements of this section. Minutes of the meetings of the board of directors shall be recorded and shall be available as provided in subsection B of ยง 55-510.
In my opinion, unless your Association elects individuals to serve on the Architectural committee, the committee (similar to nominations committee) is a committee of the Board. Here is an opinion by the
Washington State Attorney General that supports this opinion:
MEETINGS โ- PUBLIC โ- APPLICABILITY OF OPEN PUBLIC MEETINGS ACT TO A COMMITTEE OF THE GOVERNING BODY.
(1) The definition of governing body, including any "committee thereof," covers both committees composed of members of the governing body and committees composed of nonmembers appointed by the governing body.
(2) A committee of the governing body is required to comply with the provisions of the Open Public Meetings Act when it acts on behalf of the governing body by exercising actual or de facto decision making power.