filter

models.py

geom = models.MultiPolygonField(srid=4326, null=True)

views.py

neighborhoodBounds = Polygon.from_bbox(data['neighborhoodBounds'].split(','))
neighborhoodBounds.srid = 4326
#print neighborhoodBounds
#POLYGON ((40.8116690000000020 -73.9644080000000059, 40.8116690000000020 -73.9349679999999978, 40.8355379999999997 -73.9349679999999978, 40.8355379999999997 -73.9644080000000059, 40.8116690000000020 -73.9644080000000059))

# No results..
filtered = BuildingData.objects.filter(geom__within = neighborhoodBounds)

# Doesn't work either:
#select bd.bin from buildings_buildingdata as bd 
#where bin = 2082444 AND ST_Within(bd.geom, 
#ST_GeometryFromText('POLYGON ((40.8408170000000013 -73.7898320000000041, 40.8408170000000013 -73.7797680000000042, 40.8467830000000021 -73.7797680000000042, 40.8467830000000021 -73.7898320000000041, 40.8408170000000013 -73.7898320000000041))'));