Hawaiʻi Island Real Estate Investing Guide for 2026
An investor's guide to Hawaiʻi Island real estate covering Kona, Waikoloa, Hilo, Puna, lava zones, catchment water, ADU rules, and construction financing.
Updated September 27, 2026 · 12 min read · By Pac I G Capital
Hawaiʻi Island, still commonly called the Big Island, is the most geographically and economically varied county in the state, and that variety shows up directly in how investors should underwrite a deal. A parcel in Waikoloa and a parcel in lower Puna can sit thirty miles apart and require completely different financing approaches. This guide walks through the island’s core submarkets and the practical realities of lava zones, water access, and permitting that shape every deal here.
Why the Big Island Is Different
Hawaiʻi Island single-family homes have an island-wide median of roughly $550,000, but that number hides enormous variation: homes in Kona and Waikoloa routinely trade over $1 million, while Puna remains home to the cheapest residential lots in the state. That spread means the Big Island can work for a wide range of investment strategies, from ground-up spec construction in resort-adjacent Waikoloa to affordable land banking in Puna, but it also means a one-size-fits-all approach to underwriting will miss real risk. Lava zone designation, water source, and infrastructure access matter here in ways they simply don’t on the other islands.
Kona
Kailua-Kona and the surrounding coffee belt communities remain the island’s most active market for both resort-adjacent investment and owner-occupant demand. Renovation and fix and flip activity in Kona tends to center on older homes in established neighborhoods that need kitchen, bath, and outdoor living updates to compete with newer construction. Kona’s proximity to the airport and its established tourism economy also make it one of the stronger rental markets on the island, though investors should confirm current vacation rental zoning before assuming short-term rental use is available on a given parcel.
Waikoloa
Waikoloa’s resort corridor supports a different kind of investor, one focused on newer construction, resort-zoned condos and homes, and a buyer pool that includes a meaningful share of mainland and international purchasers. Spec building and renovation projects here typically carry higher price points and higher finish expectations than elsewhere on the island, and construction costs run at the higher end of the island’s range because of the master-planned community’s design standards. A construction loan structured with draws tied to completed phases fits this kind of project well.
Hilo
Hilo, the county seat, offers some of the most affordable entry points on the island for a serious investor, with an older housing stock, a stable local rental base tied to government and University of Hawaiʻi at Hilo employment, and considerably less tourism-driven price volatility than the Kona side. Renovation projects in Hilo tend to focus on function and durability given the wetter climate, and permitting timelines through the county here are generally more predictable than in high-demand resort areas.
Puna
Puna deserves its own conversation because it combines the cheapest land in the state with the most significant lava zone exposure. Much of Puna sits in Lava Zone 1 or 2, the highest-risk designations, which affects insurance availability and how conservatively a lender underwrites the property. That doesn’t mean Puna is off-limits for investment, plenty of long-term residents and investors own property here successfully, but it does mean due diligence has to include confirming the parcel’s specific lava zone, its water source (catchment is the norm in much of Puna), road maintenance status (many roads are private and unpaved), and insurance availability before you commit capital.
Lava Zones and What They Mean for Financing
The University of Hawaiʻi’s lava flow hazard zone map divides the island into nine zones based on historical eruption and flow data, with Zone 1 carrying the highest risk and Zone 9 the lowest. Conventional lenders often apply rigid overlays based on zone number alone, which can make bank financing difficult to obtain in Zones 1 and 2 regardless of the specific property’s merits. Private hard money lending takes a more property-specific approach, weighing the individual lot, its improvements, insurance status, and your business plan rather than applying a blanket zone-based denial. If you’re evaluating a property in a higher-risk zone, confirm insurance availability early, since that affects both your ongoing costs and how any lender views the deal.
Catchment Water and Off-Grid Infrastructure
A meaningful share of Big Island properties, particularly in Puna and parts of South Kona, rely on catchment water systems rather than county water, and some are fully or partially off-grid for electricity as well. None of this is unusual for the island, but it directly affects construction budgets (adding a catchment tank and filtration system, or a solar and battery system, is a real line item), insurability, and resale marketability. Renovation and construction budgets for off-grid or catchment properties should include these systems explicitly rather than assuming county infrastructure will be available.
The 2024 ADU Ordinance
Hawaiʻi County updated its accessory dwelling unit rules in 2024 in a way that has generally made it easier for qualifying property owners to add a second legal rental unit on their lot. This has created a real opportunity for investors already holding Big Island property to add rental income or resale value through an ADU, particularly in Kona, Hilo, and parts of Puna where lot sizes support it. Requirements around minimum lot size, setbacks, parking, and water and wastewater capacity still apply and vary by district, so confirm specifics with the county planning department before designing a unit or underwriting the return.
Access and Road Maintenance
Beyond lava zone and water source, road access is another due diligence item that catches out-of-state buyers off guard on the Big Island, particularly in Puna and rural parts of Kaʻū and North and South Kona. Many subdivisions in these areas were platted decades ago with private, unpaved roads maintained by a road association rather than the county, and the condition of those roads can affect both buildability and financing. Confirm whether a road is county-maintained or private, and if private, review the road association’s dues and maintenance history, before you assume year-round access to a parcel.
A Worked Example: Waikoloa Spec Build
| Line Item | Amount |
|---|---|
| Land cost | $280,000 |
| Construction budget | $420,000 |
| Estimated ARV | $950,000 |
| Loan at 70% LTV on land | $196,000 |
| Construction funded at 80% of build costs | $336,000 |
| Interest-only carry (about 1% per month, 12 months) | roughly $64,000 |
| Retainer to start paperwork (outer island) | $1,500 |
This example is illustrative only and shows how draw-based construction financing interacts with land and build costs; actual terms depend on the specific property and plan.
Financing Big Island Deals
Whether you’re renovating a Hilo bungalow, building spec in Waikoloa, or holding land in Puna, hard money financing is built around the property and the plan rather than personal income documentation. Pac I G Capital lends up to 70% LTV, up to 75% of ARV, and up to 80% of construction or rehab costs, at about 1% per month interest-only, with 6 to 24 month terms and a $1,500 outer-island retainer. Draw-based construction loans release funds as inspected phases complete, which matches how Big Island builds actually get financed given shipping timelines for materials. Run your own numbers through the hard money calculator before you finalize a plan.
Insurance by Lava Zone
Insurance availability tracks lava zone designation fairly closely on the Big Island, and this is one of the first things to confirm before you get deep into due diligence on a property in Puna or parts of South Kona. Some carriers limit or decline coverage in Zone 1 and Zone 2, while others offer coverage at a higher premium, and the specific offerings shift over time as carriers reassess their exposure statewide. Getting an actual quote for the specific parcel, rather than assuming a rate based on a neighboring property, is the only reliable way to know what your real carrying cost will be. This is also worth discussing with your lender directly, since insurance availability affects how a deal is underwritten regardless of the property’s other merits.
Building Relationships With Big Island Contractors
The Big Island’s contractor pool is spread thin across a much larger land area than any other island, and a crew based in Kona may not regularly take on projects in Hilo or Puna, or may charge a premium for the drive time and logistics. Investors working across multiple parts of the island often end up working with different contractors for different regions rather than relying on a single relationship island-wide. For off-grid or catchment properties specifically, it’s worth confirming a contractor’s direct experience with those systems, since installing or repairing a catchment tank, filtration system, or off-grid solar setup requires different expertise than a standard county-utility renovation.
Next Step
If you have a Big Island property or lot in mind, start by mapping out the lava zone, water source, and access before you underwrite the deal, then apply to see what terms are available. Our team has spent over 20 years financing deals across every one of the island’s very different submarkets.