PVT PLT OF AN AERO COMMAND 112 INADVERTENTLY CLBED ABOVE HIS INTENDED ALT DURING DEP UNDERNEATH CLASS B AIRSPACE RESULTING IN PENETRATION OF CLASS B AIRSPACE.

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I FILED AN IFR FLT PLAN FROM SQL TO SMX. THE INST DEP IS ON RWY 12. WINDS WERE 250 DEGS AT 15 KTS; WHICH WOULD HAVE MEANT A TAILWIND COMPONENT OF 10 KTS; WHICH I FELT WAS UNSAFE WITH A FULLY LOADED AIRPLANE AND A 2600 FT RWY. LOW CLOUDS WERE CLOSE TO THE DEP END (TO THE N) BUT IT WAS CLR OVERHEAD; TO THE E; W; AND SO. SO I TOOK OFF VFR ON RWY 30. FOR HISTORICAL REASONS; THE TFC PATTERN IS TO THE E. WHEN I LAST FLEW INTO SAN CARLOS IN 1979; THERE WERE NO HOUSES TO THE E; SO THIS PATTERN MADE SENSE. NOW THERE IS DENSELY POPULATED HOUSING ON BOTH SIDE. THE FLOOR OF THE TCA IS 1500 FT TO THE E AND 4000 FT TO THE W; WITH THE DIVIDING LINE BASICALLY OVER THE RWY. NOISE ABATEMENT PROCS CALL FOR REDUCING PWR AT 800 FT; OVERFLYING THE HOUSES; RE-ESTABLISHING A CLB; AND NOT TURNING AWAY FROM THE CLASS B AIRSPACE UNTIL XING WHIPPLE AVENUE. (I TRY NOT TO READ ROAD SIGNS WHEN I FLY.) WHILE TRYING TO FIND WHIPPLE AVENUE; I INADVERTENTLY CLBED TO 1800 FT -- 300 FT ABOVE THE FLOOR OF THE CLASS B AIRSPACE. THIS ACFT; IN WHICH I HAVE 12 HRS; CLBS MUCH FASTER THAN MY C150! YOUR FRIENDLY ATC CTLR WAS KIND ENOUGH TO INFORM ME OF MY ERROR ON THE RADIO. I HAD THE AIRLINERS GOING TO SFO IN SIGHT AT ALL TIMES. THERE WAS NEVER A SAFETY HAZARD. RECOMMENDATION: SINCE THE FORMERLY VACANT LAND E OF THE ARPT IS NOW FULL OF HOUSES; CHANGE THE TFC PATTERN AT SAN CARLOS TO THE W SIDE. ALSO; ESTABLISH AN IFR DEP USING RWY 30; WITH A L TURN.