CastleKeep Malibu: A Guide to the $1.75M Gesner-Designed Hilltop Property

The unique CastleKeep property in Malibu, California, presents a rare opportunity to own a 9.6-acre hilltop oasis with existing structures—including a famed architect-designed "cocoon"—and the blueprints to build a full Harry Gesner-designed home, all for a list price of $1.75 million. This guide provides an objective overview of the property's features, its potential as an investment or retreat, and key considerations for a prospective buyer.

What is the CastleKeep Malibu Property?

Listed as land, the 9.6-acre property known as CastleKeep is not a conventional single-family home. It is a parcel that includes several permitted, improvised structures making it suitable for recreational use or short-term rentals. The land is situated in the Santa Monica Mountains, offering significant privacy while being approximately an hour's drive from central Los Angeles. The core value lies in its association with the late architect Harry Gesner and the included plans for a never-built residence.

What Unique Structures Are Currently on the Land?

The property is improved with a collection of unique amenities that facilitate immediate use. The most notable structure is the one-of-a-kind "cocoon" living space, a Gesner-designed pod with a double bed and deck. Additional features include an interior kitchen, an outdoor kitchen, an outdoor bar, two in-ground spas, an outdoor theater, showers, and toilets. A viewing platform capitalizes on the panoramic views. The property operates off-grid with solar panels and a 30,000-gallon water tank, which are critical for its remote location.

Who Was Architect Harry Gesner and What Are the Building Plans?

Harry Gesner was a self-taught architect renowned for creating iconic, organic-style homes in California until his passing in 2022. The sale includes the original architectural plans Gesner designed for a comprehensive hilltop residence on this specific parcel. This provides a new owner with a unique opportunity to build a custom home based on a vision from a celebrated architect. Based on our experience assessment, executing these plans would require navigating Malibu's permitting process and securing significant construction financing.

How is the Property Currently Used and What is Its Income Potential?

The property is not a primary residence but functions as a high-end "glamping" short-term rental, listed on platforms like Airbnb for approximately $750 per night with a capacity for eight guests. The listing agent has reported interest from buyers considering it as a health retreat or private event venue. This existing income stream can be evaluated by a potential buyer, but its continuity would depend on local short-term rental regulations.

What Should a Potential Buyer Consider?

Purchasing this property requires specialized due diligence beyond a standard home transaction. Key considerations include:

• Zoning and Permitting: Verifying the permitted status of existing structures and understanding the requirements and costs to build the full Gesner design with Malibu building authorities.
• Land Use: The property's remote, off-grid nature requires a commitment to maintaining the solar and water systems.
• Investment Calculation: Weighing the $1.75 million land cost against the estimated multi-million dollar expense of constructing the main residence to assess total investment. Prospective buyers should consult with a real estate attorney and a land-use expert familiar with Malibu codes to fully understand the project's scope and feasibility.