Quote from @Theresa Harris:
If the average is about $310 a month for 4 units, that is $75 per unit and not too bad as far as their usage goes. As your rent includes water, then I'd make sure what you are charging for rent is about $75 higher than units that don't include the water. While they are all month to month on their anniversary of their move in, raise the rent a bit to cover some of those costs.
Even if you installed tankless water heaters, you'd still be paying for water and now you'd have the extra cost of the water heaters and I don't see how that would save you money for water.
This is the key point. ^^ Even if you bill the tenants for water, the cost just comes off rent. If your place is $1075 and includes water, the competition would be $1000 if the tenant pays water. The only thing that billing does to tenants is makes them more conscious of water usage. If you are able to pass water on to tenants and keep rent the same, that just means you can raise rent $75 and it is the same thing which is just easier. The problem is you may not be able to fairly sub-meter due to shared utilities like hot water or a laundry room. Unless you have four completely separate water lines, 4 hot water heaters, etc. then your best bet for sub billing is splitting based based on unit sizes or number of occupants. This isn't accurate and could leave one tenant paying for another tenants water usage. This is why water is normally not split in quads or higher count complex.
Also be aware that charging tenants for laundry and billing them for the water it consumes may not be legal in some places. You can't profit from reselling utilities because utilities are a regulated industry. That is why you want to make sure the sub metering is accurate an only charges them for what they use.
As far as ideas to reduce usage, here are a couple:
1. Make sure all fixtures are low flow. Any modern faucet has low flow aerator. Make sure the shower heads are low flow. Toiles should be no more than 1.6 gallons per flush and make sure the flappers are not leaking. Maybe consider proactively replacing the flappers just in case.
2. If you have outside water spigots, put a locking valve on it so people don't use it to wash cars or fill kiddie pools.
3. You could remove laundry if he unit has it. That is one of the biggest uses of water. Or increase the cost per load. Most of these old properties have outdated billing rates on laundry.
4. Educate tenants on water conservation. Let them know that if you pay more, the cost gets passed on to them through rent increases.
@Seth Borman you are saying a four unit property should cost $31 per month? That seems ridiculously low. My family of three is more than that every month and my state is one of the cheaper ones. According to this website the average household bill for water in CA is $65 which would be $260 for a fourplex.
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