Kahana Bay Erosion Mitigation Project

Kahana Bay Erosion Mitigation Project

Growing concerns about sea level rise and coastal erosion in Kahana on West Maui have led the Maui County Planning Department and the Kahana Bay Steering Committee to develop a comprehensive plan of action to not only protect the condominiums along the coast but to restore the Kahana beach entirely. This plan is currently known as the Kahana Bay Erosion Mitigation Project. 

Looking at the picture above it's hard to imagine that just 30 to 40 years ago a large beach existed in front of the Kahana coastline. Kahana Bay beach is all but gone today and the coastal condos in Kahana along with one residential property are in danger of being destroyed by rising sea levels. 

What's Being Done in Kahana To Restore The Coastline?

Kahana Bay Erosion

Maui County and the Kahana Bay Steering Committee enlisted Oceanit, a coastal engineering consulting organization specializing in sea level rise mitigation, to develop a proposed action and develop a Draft Environmental Impact Statement. Oceanit has developed a second draft environmental assessment report to outline the erosion mitigation project in Kahana and the restoration work is still being discussed without a target date to begin.

Approximately 1,200 feet of coastline in Kahana is severely threatened by flooding and sea level rise. Over the last few decades, all of the condo complexes in the Kahana area have experienced challenges due to sea level rise and have had to repair buildings, seawalls, and other infrastructure. If action isn’t taken soon, there could be catastrophic property damage and environmental damage as the structures could all be destroyed and taken into the ocean. 

The Kahana Bay Steering Committee

Kahana Bay Erosion Mitigation Project

The Kahana Bay Steering Committee is kind of a "super-association" that is comprised of these nine condo communities which are threatened by the sea level rise:

Also, one residential parcel owner is involved in the committee. 

Getting the Plan Together to Save Kahana Bay

Kahana Bay

As early as 2016, a feasibility study was conducted by Maui County to determine if it were possible to rebuild the beach in Kahana, thorough beach nourishment, and construct T-shaped groins further offshore to create breakwater that would reduce the impact of ocean swells on the beach and coastline. Since then, two separate draft environmental impact statements have been developed, with the most recent one being in November of 2021. 

The Realtors Association of Maui Official Position

“We are acknowledging and supporting the property owners located on Kahana Bay in their efforts to identify and implement solutions with regard to beach erosion and the preservation of real property.  We urge County, State, and Federal officials to recognize the high priority of this issue and to cooperate with the owners of Kahana Bay properties towards an expeditious permitting process and the facilitation of appropriate remedies.” 

 

In addition to the challenges from erosion, Maui County is also trying to ban short term rentals in apartment zoned areas of West Maui

How Much Will The Kahana Beach Restoration Cost?

The projected costs that have been publicly displayed have fluctuated, but I’d estimate it to now look like it going to cost around 50 million in total. This will most likely be covered in part by some type of public-private partnership that will include FEMA funds, County and State taxpayer funds, and by the members of the Kahana Bay Steering Committee via assessments of the owners in the individual condo complexes involved. 

Ultimately, with a new beach, the owners of any of these condos in Kahana are likely looking at some noticeable appreciation of property values along with an increase in nightly rates from tourists. 

The 2nd Draft Environmental Statement by Oceanit

Coming in at over 201 pages, this report is extremely thorough. The brief description of the Proposed Action outlined in the Executive Report states that:

“Kahana Bay, Maui, is currently at a turning point for managing natural hazard risks to public safety and developed infrastructure.  For decades, sea level rise (SLR), strong wave action, coastal flooding, and shoreline development have transported sand and soils away from the Kahana coast.  This chronic and episodic coastal erosion has resulted in shoreline recession, beach narrowing, loss of sandy beach area, continuous beach system, and sand dunes, a reduction in public access, and increased risk of natural hazards to people, oceanfront resources, buildings, infrastructure, and amenities.   

In response to the increased risk of coastal flooding, property owners along the Kahana shoreline between KaĘ»ea Point and Kapua Beach have installed a variety of shoreline protection structures ranging from stone and concrete seawalls to vegetated sand berms and temporary sandbag revetments.  Currently, approximately 1,200 feet (ft) of shoreline has been permitted for emergency shoreline protection measures and little of the shoreline is in its natural condition.  The beach erosion trend is expected to accelerate within Kahana Bay as global SLR worsens, and existing shoreline armoring prevents inland sand reserves from replenishing the beach naturally. 

The adjacent community is now seeking ways to manage its coastal resources for generations to come.  The Kahana Bay Steering Committee, or KBSC, represents nine condominium complexes and one residential kuleana parcel.  The nine condominiums are, from north to south, Kahana Village, Kahana Outrigger, Kahana Reef, Pohailani, Hololani, Royal Kahana, Valley Isle Resort, Sands of Kahana, and the Kahana Beach Resort.  The single-family kuleana parcel is located between the Kahana Outrigger and Kahana Reef.   

The overall purpose of the project is to develop a sustainable and resilient approach to mitigate regional erosion along the Kahana shoreline on Maui.  The project objectives are to: 

• Explore, develop, and encourage a cost-effective, regional erosion mitigation solution for the Kahana shoreline that will minimize impacts to the sensitive coastal environment and enhancing nearshore habitat while protecting existing habitable structures;  

• Restore and preserve the sandy beach and offshore resources for cultural, social, and recreational uses, including ocean sports, food gathering, and passive enjoyment; 

• Encourage shoreline protection that is compatible with natural and existing site conditions; 

• Establish a design based on accepted engineering principles and best management practices (BMPs);  

• Propose a project that is compatible and consistent with Federal, State, and County regulations, policies, and plans; and  

• Develop a sustainable and resilient solution that withstands projected SLR while minimizing the environmental impacts of required maintenance”

Check out the full report here.

Kahana Condos For Sale

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4007 Lower Honoapiilani Rd 115, Napili/Kahana/Honokowai

$725,000

Mahinahina Beach 115

4007 Lower Honoapiilani Rd 115, Napili/Kahana/Honokowai

1 Bed 1.5 Baths 859 SqFt Residential MLS® # 406947

Days on Market: 1

$850,000

Valley Isle Resort 403

4327 Lower Honoapiilani Rd 403, Napili/Kahana/Honokowai

2 Beds 2 Baths 1,040 SqFt Residential MLS® # 406906

Days on Market: 49

Short Term Rental

$850,000

Hololani A604

4401 Lower Honoapiilani Rd A604, Napili/Kahana/Honokowai

2 Beds 2 Baths 1,066 SqFt Residential MLS® # 406653

Days on Market: 61

Short Term Rental

$510,000

Valley Isle Resort 802

4327 Lower Honoapiilani Rd 802, Napili/Kahana/Honokowai

1 Bed 1 Bath 768 SqFt Residential MLS® # 406088

Days on Market: 73

Short Term Rental

$575,000

Valley Isle Resort 801

4327 Lower Honoapiilani Rd 801, Napili/Kahana/Honokowai

1 Bed 1 Bath 768 SqFt Residential MLS® # 406294

Days on Market: 112

New Short Term Rental

$560,000

Noelani 114B

4095 Lower Honoapiilani Rd 114b, Napili/Kahana/Honokowai

0 Beds 1 Bath 295 SqFt Residential MLS® # 406789

Days on Market: 0

Short Term Rental

$639,000

↓ $61,000

Mahina Surf 114

4057 Lower Honoapiilani Rd 114, Napili/Kahana/Honokowai

1 Bed 1 Bath 611 SqFt Residential MLS® # 406590

Days on Market: 81

Short Term Rental

$498,000

↓ $1,000

Kahana Reef 214

4471 Lower Honoapiilani Rd 214, Napili/Kahana/Honokowai

1 Bed 1 Bath 611 SqFt Residential MLS® # 405106

Days on Market: 224

Short Term Rental

$650,000

Kahana Reef 118

4471 Lower Honoapi'ilani Rd 118, Napili/Kahana/Honokowai

1 Bed 1 Bath 611 SqFt Residential MLS® # 406765

Days on Market: 55

Short Term Rental

$585,000

Royal Kahana 1018

4365 Lower Honoapiilani Rd 1018, Napili/Kahana/Honokowai

0 Beds 1 Bath 431 SqFt Residential MLS® # 406758

Days on Market: 32

$595,000

Royal Kahana 518

4365 Lower Honoapiilani Rd 518, Napili/Kahana/Honokowai

0 Beds 1 Bath 431 SqFt Residential MLS® # 405222

Days on Market: 135

Short Term Rental

$699,000

Royal Kahana 907

4365 Lower Honoapiilani Rd 907, Napili/Kahana/Honokowai

1 Bed 1 Bath 777 SqFt Residential MLS® # 405378

Days on Market: 126

New Short Term Rental

$650,000

Valley Isle Resort 803B

4327 Lower Honoapiilani Rd 803b, Napili/Kahana/Honokowai

2 Beds 2 Baths 1,040 SqFt Residential MLS® # 406754

Days on Market: 0

New Short Term Rental

$495,000

Valley Isle Resort 406B

4327 Lower Honoapiilani Rd 406b, Napili/Kahana/Honokowai

0 Beds 1 Bath 480 SqFt Residential MLS® # 406815

Days on Market: 0

Short Term Rental

$749,000

↓ $131,000

Kahana Manor 701

4310 Lower Honoapiilani Rd 701, Napili/Kahana/Honokowai

2 Beds 2 Baths 1,203 SqFt Residential MLS® # 404867

Days on Market: 225

Short Term Rental

$725,000

Kahana Manor 220

4310 Lower Honoapiilani Rd 220, Napili/Kahana/Honokowai

2 Beds 2 Baths 920 SqFt Residential MLS® # 404600

Days on Market: 273

$898,000

Villas at Kahana Ridge 432

15 Abbey Ln 432, Napili/Kahana/Honokowai

3 Beds 2 Baths 1,327 SqFt Residential MLS® # 405660

Days on Market: 165

$685,000

Villas at Kahana Ridge 733

35 Katie Ln 733, Napili/Kahana/Honokowai

2 Beds 2 Baths 780 SqFt Residential MLS® # 406623

Days on Market: 33

What's Next For Kahana Bay

As I mentioned before, to achieve these objectives the proposed action is to rebuild the beach and install T-groins offshore. For beach renourishment, a deposit of enough sand for the project was found about 300 yards offshore and is likely going to be used. As of writing this article, we still don’t have an updated timeline on when this will pass the environmental assessment and public review to begin the undertaking, but it does appear that the tailwinds are significant and we should see some new developments soon.

The report also indicated that their research shows that the improvements would actually enhance the habitat for Rare, Threatened, and Endangered species such as the Hawaiian Monk Seal and sea turtles by providing them with better water quality (a result of reduced effluent discharge and soil runoff) and the wider sandier beach would give them a better onshore habitat ‘haul off area’ to rest. 

Does This Kahana a Good or Bad Place To Buy?

I personally feel like this is a great thing for owners in Kahana and also a positive for those looking at potentially purchasing in the area. Work like this has been done successfully in other parts of Hawaii and the world, so there's no reason to believe this project couldn't be successfully executed. I think there is some chance that the owners in the Kahana Bay Steering Committee may face some type of individual assessments in the future, but the value increase of the beach would offset most if not all of that. 

While doing your due diligence on any condo or home on Maui you should have an experienced realtor in your corner who knows these things and can help you make an informed decision. If you have any questions about Kahana or any other area on Maui, I'd be happy to share my experience and expertise with you.  

Get In Touch With Evan!

Evan Harlow Maui

Evan Harlow ranks among the best real estate agents on Maui annually and is in the top 1% of Coldwell Banker agents worldwide in production. Evan has the expertise, experience, and work ethic to help you achieve your real estate buying and selling goals. We promise exceptional service and support from the beginning of the process through closing and beyond. See what Evan's clients are saying on Google.

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