Also, the best "night" photos of things like Xmas lights and lit signs and store fronts are not taken in the dark of night.
If you want the best shots, setup about at about sunset. As the sky darkens start taking a picture every few minutes. The trick is to get the best balance between an almost black scene and the bright lights. If you shoot too late, the lights will be too bright relative to the house.
Shooting at dusk to make it look like night is often referred to as shooting during the "magic hour", although the sweet spot is far less than an hour. With experience you'll learn to judge when the balance between the lights and the ambient lighting is at its best. While you're just beginning, start shooting a little early and keep shooting until its rather dark. The best shots will probably be about the time you can just barely read a newspaper without additional light.
Of course, you'll want to do all the basics:
1. Use a tripod or other very firm and solid support.
2. Release the shutter without pressing on the shutter release. Either use a remote release cord, a wireless remote, or the self timer.
3. Use the lowest ISO available on the camera. DO NOT set the camera's ISO to "auto".
4. Use Aperture priority and set an aperture 1-2 stops smaller (larger number) than the lens' maximum.
5. Bracket your exposures. In this situation you are not likely to underexpose but may overexpose. Shot one with the EV compensation set to 0 and one with it set to -1, possibly a third (digital is cheap to shoot) at -2. Do a batch like this at every interval at the scene darkens.