I've moved tanks from apartment to apartment a few times, it's simple. Drain some tank water into the buckets. Then lower water level to maybe fin level. Then catch your fish and put in the bucket, add lids. Then drain as much water as you can out of the tank keeping substrate wet. Remove as much decor as possible for weight. Keep filter media wet. Move everything to new house. Add water and dechlorinate it. Add fish and filter. Put decor back in, sit down and watch your fish. It's stressful the first time but for going just across the street you should be fine, you can even use furniture dollys to roll the tank over.