If your condo board suddenly says indoor parking is off limits for cars older than 15 years, the first reaction is usually disbelief. After all, if the car is registered, insured, and road legal, how can a private building say it is too old to park inside? The short answer is that a condo or co-op can often make parking rules, but whether this specific rule holds up depends on the governing documents, state law, and how the rule was adopted and enforced.