Common Questions Buyers Ask About Cesspools in Hawaii

Common Questions Buyers Ask About Cesspools in Hawaii

When buyers start looking at homes on the Big Island of Hawaii, one of the most common questions that comes up is about cesspools. Because many older homes were built before modern wastewater systems were common, cesspools are still found on thousands of properties throughout the islands.

Here are some of the most frequent questions buyers ask.

Are Cesspools Legal in Hawaii?

Yes, existing cesspools are still legal to use in Hawaii. However, the State of Hawaii has established a goal of phasing out all cesspools by the year 2050.

This means homeowners will eventually need to upgrade their wastewater system to something like a septic system or another approved treatment system.

For now, many properties with cesspools can still be bought and sold without immediate replacement, but buyers should plan for future conversion costs.

Do You Have to Replace a Cesspool When Buying a Home?

In most cases, buyers are not required to immediately replace a cesspool when purchasing a property.

However, there are a few situations where replacement may be required sooner, such as:

• If the cesspool fails
  
  

• If major renovations trigger permitting requirements
  
  

• If the property is located in an environmentally sensitive area
  
  

Because regulations can change, buyers should always verify the current rules during their due diligence period.

How Much Does It Cost to Replace a Cesspool?

The cost to convert a cesspool to a septic system or other treatment system can vary widely depending on the property.

Typical conversion costs in Hawaii often range between:

$15,000 and $40,000 or more

Factors that affect the cost include:

• Soil conditions
  
  

• Property size
  
  

• Slope and drainage
  
  

• System type required by the county
  
  

Can You Get a Loan on a Home With a Cesspool?

In many cases, yes. Many lenders will still finance homes with existing cesspools, especially if they are functioning properly.

However, some lenders may require additional inspections or disclosures. It’s always a good idea for buyers to work with experienced lenders who are familiar with Hawaii properties.

How Do You Know if a Property Has a Cesspool?

The easiest way to confirm the wastewater system is through the seller’s disclosures, property records, or inspection reports.

During a real estate transaction, buyers often hire inspectors or wastewater professionals who can help determine the type and condition of the system.

Should Buyers Avoid Homes With Cesspools?

Not necessarily. Many homes with cesspools are otherwise excellent properties and may be located in desirable areas.

The key is simply understanding that a future upgrade will likely be required and planning financially for that improvement.

Local Guidance Matters

Because wastewater systems, permitting rules, and infrastructure can vary across different parts of the island, it helps to work with someone who is familiar with the local market.

Helping buyers understand these details is a normal part of many transactions here on the Big Island, and having clear information early in the process can prevent surprises later on.