\documentclass[tikz,border=3mm]{standalone}
\usepackage{tikz}
\usetikzlibrary{calc}

\definecolor{navy}{HTML}{17324D}
\definecolor{chairblue}{HTML}{364353}
\definecolor{chairdark}{HTML}{182533}
\definecolor{roomfill}{HTML}{F1F3E5}
\definecolor{roomline}{HTML}{8A8E88}
\definecolor{panelline}{HTML}{8B9094}
\definecolor{screen}{HTML}{355F50}
\definecolor{screenedge}{HTML}{203D34}
\definecolor{wood}{HTML}{C99C4E}
\definecolor{wooddark}{HTML}{6F4D20}
\definecolor{tableline}{HTML}{999D9B}

\tikzset{
  chairnode/.style={draw=chairdark,fill=chairblue,rounded corners=.035cm,
                    minimum width=.34cm,minimum height=.22cm,inner sep=0pt,line width=.35pt},
  tab/.style={draw=tableline,fill=white,line width=.45pt},
}

% Small chair, centered on (#1,#2), optional rotation in #3.
\newcommand{\Chair}[3][0]{%
  \begin{scope}[shift={(#2,#3)},rotate=#1]
    \fill[black!12,rounded corners=.03cm] (-.15,-.13) rectangle (.20,.10);
    \draw[chairdark,fill=chairblue,rounded corners=.035cm,line width=.35pt]
      (-.18,-.11) rectangle (.18,.11);
    \draw[chairdark,line width=.25pt] (-.12,-.08)--(-.12,.08);
  \end{scope}%
}

\newcommand{\ScreenAndLectern}{%
  % screen
  \draw[draw=screenedge,fill=screen,line width=.45pt]
     (8.25,3.13)--(10.85,3.13)--(10.78,2.92)--(8.32,2.92)--cycle;
  % lectern
  \draw[wooddark,fill=wood,line width=.4pt] (9.33,2.48) rectangle (9.78,2.79);
  \draw[wooddark,fill=wood!75!white,line width=.35pt] (9.27,2.75) rectangle (9.84,2.83);
}

\newcommand{\BaseRow}[1]{%
  % outer rounded panel
  \draw[panelline,line width=.55pt,rounded corners=.24cm]
       (0,0) rectangle (16.3,3.25);
  % label
  \node[anchor=center,text=navy,align=left,font=\sffamily\bfseries\LARGE]
       at (2.35,1.62) {#1};
  % room body
  \draw[roomline,fill=roomfill,line width=.5pt,rounded corners=.08cm]
       (5.00,.12) rectangle (15.18,3.13);
  % door recess (white bite into room)
  \fill[white] (15.18,.62) circle[radius=.43];
  \draw[roomline,line width=.5pt]
       (15.18,1.05) arc[start angle=90,end angle=270,radius=.43];
  \ScreenAndLectern
}

\newcommand{\BaseRowPlain}[1]{%
  % outer rounded panel
  \draw[panelline,line width=.55pt,rounded corners=.24cm]
       (0,0) rectangle (16.3,3.25);
  % label
  \node[anchor=center,text=navy,align=left,font=\sffamily\bfseries\LARGE]
       at (2.35,1.62) {#1};
  % room body
  \draw[roomline,fill=roomfill,line width=.5pt,rounded corners=.08cm]
       (5.00,.12) rectangle (15.18,3.13);
  % door recess
  \fill[white] (15.18,.62) circle[radius=.43];
  \draw[roomline,line width=.5pt]
       (15.18,1.05) arc[start angle=90,end angle=270,radius=.43];
}

\newcommand{\LongTable}[3]{% x y width
  \draw[tab] (#1,#2) rectangle ++(#3,.33);
}

\newcommand{\RoundSet}[2]{%
  \draw[tableline,fill=white,line width=.45pt] (#1,#2) circle[radius=.47];
  \foreach \a in {0,60,120,180,240,300}{
    \node[chairnode,rotate=\a] at ($(#1,#2)+(\a:.65)$) {};
  }
}

\begin{document}
\begin{tikzpicture}[x=1cm,y=1cm]

% --------------------------------------------------------------------------
% 1. Theater
\begin{scope}[shift={(0,20.70)}]
  \BaseRow{Theater}
  \foreach \r/\y in {1/.47,2/.92,3/1.37,4/1.82}{
    \foreach \c in {0,...,10}{
      \pgfmathsetmacro{\xx}{6.45+0.64*\c}
      \Chair{\xx}{\y}
    }
  }
\end{scope}

% --------------------------------------------------------------------------
% 2. Classroom
\begin{scope}[shift={(0,17.25)}]
  \BaseRow{Classroom}
  \foreach \y in {.55,1.22,1.89}{
    \LongTable{5.90}{\y}{7.62}
    \foreach \k in {1,...,5}{
      \pgfmathsetmacro{\xx}{5.90+1.27*\k}
      \draw[tableline,line width=.35pt] (\xx,\y)--(\xx,\y+.33);
    }
    \foreach \c in {0,...,5}{
      \pgfmathsetmacro{\xx}{6.50+1.28*\c}
      \pgfmathsetmacro{\yy}{\y-.17}
      \Chair{\xx}{\yy}
    }
  }
\end{scope}

% --------------------------------------------------------------------------
% 3. U-shape
\begin{scope}[shift={(0,13.80)}]
  \BaseRow{U-Shape}
  % table U
  \draw[tab] (6.68,.55) rectangle (12.22,.94);
  \draw[tab] (6.68,.55) rectangle (7.28,2.55);
  \draw[tab] (11.62,.55) rectangle (12.22,2.55);
  % segmentation
  \foreach \x in {8.35,9.60,10.85}
    \draw[tableline,line width=.35pt] (\x,.55)--(\x,.94);
  \foreach \y in {1.05,1.45,1.85,2.25}{
    \draw[tableline,line width=.35pt] (6.68,\y)--(7.28,\y);
    \draw[tableline,line width=.35pt] (11.62,\y)--(12.22,\y);
  }
  % chairs
  \foreach \i in {0,...,4}{
    \pgfmathsetmacro{\yy}{.78+.40*\i}
    \Chair[90]{6.44}{\yy}
    \Chair[90]{12.48}{\yy}
  }
  \foreach \i in {0,...,5}{
    \pgfmathsetmacro{\xx}{7.58+.82*\i}
    \Chair{\xx}{.37}
  }
\end{scope}

% --------------------------------------------------------------------------
% 4. Hollow square
\begin{scope}[shift={(0,10.35)}]
  \BaseRowPlain{Hollow\\Square}
  % square ring
  \draw[tab] (7.02,.55) rectangle (11.96,2.28);
  \draw[roomline,fill=roomfill,line width=.4pt] (7.72,.92) rectangle (11.26,1.91);
  % ring divisions
  \foreach \x in {8.55,9.38,10.21,11.04}
    \draw[tableline,line width=.3pt] (\x,.55)--(\x,.92);
  \foreach \x in {8.00,8.80,9.60,10.40,11.20}
    \draw[tableline,line width=.3pt] (\x,1.91)--(\x,2.28);
  \foreach \y in {1.20,1.55,1.90}{
    \draw[tableline,line width=.3pt] (7.02,\y)--(7.72,\y);
    \draw[tableline,line width=.3pt] (11.26,\y)--(11.96,\y);
  }
  % chairs: left/right/bottom/top
  \foreach \i in {0,...,4}{
    \pgfmathsetmacro{\yy}{.76+.36*\i}
    \Chair[90]{6.67}{\yy}
    \Chair[90]{12.31}{\yy}
  }
  \foreach \i in {0,...,4}{
    \pgfmathsetmacro{\xx}{7.72+.84*\i}
    \Chair{\xx}{.38}
    \Chair{\xx}{2.45}
  }
\end{scope}

% --------------------------------------------------------------------------
% 5. Boardroom
\begin{scope}[shift={(0,6.90)}]
  \BaseRowPlain{Boardroom}
  \draw[tab] (7.15,.90) rectangle (11.95,1.82);
  \foreach \i in {0,...,4}{
    \pgfmathsetmacro{\xx}{7.67+.92*\i}
    \Chair{\xx}{1.98}
    \Chair{\xx}{.72}
  }
  \Chair[90]{6.92}{1.36}
  \Chair[90]{12.18}{1.36}
\end{scope}

% --------------------------------------------------------------------------
% 6. Banquet
\begin{scope}[shift={(0,3.45)}]
  \BaseRow{Banquet}
  \foreach \x in {6.55,8.45,10.35,12.25}{
    \draw[tab] (\x,.55) rectangle ++(.58,1.85);
    \foreach \i in {0,...,4}{
      \pgfmathsetmacro{\yy}{.72+.37*\i}
      \Chair[90]{\x-.18}{\yy}
      \pgfmathsetmacro{\xr}{\x+.76}
      \Chair[90]{\xr}{\yy}
    }
  }
\end{scope}

% --------------------------------------------------------------------------
% 7. Banquet rounds
\begin{scope}[shift={(0,0)}]
  \BaseRow{Banquet Rounds}
  \RoundSet{6.62}{1.50}
  \RoundSet{8.75}{1.03}
  \RoundSet{10.85}{1.50}
  \RoundSet{13.00}{1.10}
\end{scope}

\end{tikzpicture}
\end{document}