Another email from my councilman. Looks like he asked the City Manager or Attorney:
Randy - as I suspected, our current noise ordinance is out of date and has limited help for you. You will see below that if its a big enough issue for you on a recurring basis, you are able to pursue a remedy in our municipal court.
Here is what we have now:
Regarding your question about the noise emitted from leaf blowers within City limits, the City does not have regulations pertaining to maximum noise levels. You do, however, have the option of filing a complaint in Municipal Court if you feel the noise levels are preventing you from reasonably enjoying your property. Several cities around the nation have prohibited or limited the use of leaf blowers through noise ordinances. The City is in the process of researching noise restrictions in order to recommend changes to City Ordinance in regards to noise. Depending on future City Council direction, the ordinance could have an impact on this issue by restricting the use during specific times and/or setting a maximum noise level.
Sorry we aren't there yet with the update; but its coming.
Steve Porter
Sugar Land City Council, District 1