19 Kathleen Avenue, Castle Hill, NSW 2154

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House
Type
5
Bedrooms
4
Bathrooms
2
Parkings
3,977 m²
Area

Published on Wednesday, June 24, 2026 ( See property details for 19 Kathleen Avenue, Castle Hill, NSW 2154)

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Leo Liu Senior Sales Executive | Team Leader
  • AI-generated summary for guidance only. We can’t guarantee accuracy -please verify all details independently before deciding.

A stunning tri-level estate on nearly 4,000sqm offering luxurious living, private resort-style amenities, and prime walk-to-everywhere convenience in Castle Hill.

🏡 Property Highlights

  • Rare 3,977sqm estate in the heart of the Hills District
  • Architecturally designed tri-level home with expansive living spaces
  • Resort-style grounds featuring a championship tennis court and swimming pool
  • Five luxurious bedrooms, including three with private ensuites
  • Seamless indoor-outdoor flow with panoramic tree-top views
  • Prime walk-to-everywhere location close to shopping, transport, and elite schools

✨ Key Features

  • Swimming Pool
  • Garage
  • Outdoor Area
  • Built-in Robes
  • Open-Plan Living
  • Home Office / Study
  • Security Screens / Gates
  • Fly Screens
  • Ceiling Fans
  • Waterfront / Views
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19 Kathleen Avenue
Castle Hill, NSW 2154
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Vertical aerial view — 19 Kathleen Avenue
19 Kathleen Avenue — Vertical Aerial  •  Castle Hill, NSW 2154  •  Nearmap © 2026

Castle Hill is a highly sought-after suburb renowned for its spacious properties, excellent schools, and vibrant shopping precincts. It offers a perfect blend of suburban tranquility and urban convenience, with easy access to public transport and recreational parks. The area boasts a strong community feel, prestigious homes, and a range of lifestyle amenities, making it ideal for families and professionals alike.

What are the main lifestyle benefits of this estate?
This estate offers a luxurious lifestyle with resort-style amenities, private outdoor spaces, and proximity to shopping, transport, and elite schools, making it ideal for families seeking comfort and convenience.
How is the indoor-outdoor flow designed?
The home features seamless indoor-outdoor transitions with expansive living zones opening onto outdoor terraces and landscaped gardens, perfect for entertaining and relaxing.
What entertainment options are available within the property?
The lower level includes a private cinema/media room, a bespoke wet bar, and a large rumpus and billiard area, providing a resort-like entertainment experience.
Are there any special features for outdoor recreation?
Yes, the property includes a full-sized championship tennis court, a sparkling swimming pool, and sprawling manicured lawns for outdoor activities.
Is the property suitable for multi-generational living?
Absolutely, with five bedrooms including three with private ensuites, the home is ideal for multi-generational families or hosting guests.
Are there any upcoming planning or development applications in the area that could affect the property’s privacy or views? What are the ongoing maintenance costs for the extensive grounds and outdoor facilities? Is the property compliant with all local council regulations and zoning laws? Are there any easements, covenants, or restrictions on the land that could impact future renovations or extensions? Has the property been inspected for any structural issues or potential defects, especially given its age and size? Are there any known issues with the swimming pool, tennis court, or other outdoor amenities? What are the strata or community title arrangements, if applicable, and associated costs? Is there any history of flooding or bushfire risk in this area? Are there any planned infrastructure projects or nearby construction that could impact the property’s tranquility? What are the total costs involved in maintaining the estate’s extensive landscaping and outdoor features?

19 Kathleen Avenue, Castle Hill, NSW 2154 - More Details

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Rarely does an estate of such monumental scale, architectural brilliance, and prestigious positioning become available in the heart of the Hills District. Welcome to 19 Kathleen Avenue, Castle Hill - a breathtaking, tri-level masterpiece commanding an incredibly rare 3,977sqm parcel of land.

In a suburb where land is highly coveted, a holding of this size is exceptionally rare. Hidden away in an elite, whisper-quiet cul-de-sac, this property seamlessly fuses the absolute privacy of a country-style acreage with the vibrant, cosmopolitan convenience of urban living.

From the moment you turn into the street, the home’s commanding street presence is undeniable. Pass through the grand entrance onto a sweeping circular driveway that effortlessly accommodates multiple guest vehicles and leads to a secure double lock-up garage.

The resort-style grounds have been meticulously designed for those who demand the finer things in life. Step outside into your own private country club:
- Championship Tennis Court: Host weekend matches on your private, full-sized court.
- Sparkling Swimming Pool: A sun-drenched oasis perfect for lazy summer afternoons or grand poolside soirees.
- Manicured Estate Gardens: Sprawling lawns offer endless space for children and pets to explore in complete safety.

Spanning three expansive, light-filled levels, the architectural floor plan brilliantly separates grand-scale entertaining from peaceful, private sanctuaries.

The Upper Level – The Accommodation Wing
Designed as a serene retreat from the hustle and bustle of daily life, this level features five palatial bedrooms. Catering perfectly to multi-generational families or high-end guest accommodation, three of the five bedrooms are ultra-luxurious suites equipped with their own private ensuites. This level opens to a mammoth, wrap-around outdoor terrace. Here, you can enjoy your morning coffee or evening wine while soaking in breathtaking, panoramic views of the lush, tranquil tree-tops and bushland.

The Ground Level - Grand Living and Dining
The heart of the home features soaring ceilings, expansive formal and informal living zones, and a gourmet kitchen designed to cater to the culinary enthusiast. Seamless indoor-outdoor flow ensures that whether you are hosting an intimate family dinner or a hundred guests, the transitions are effortless.

The Lower Level - The Ultimate Entertainment Hub
Descend to the lower level and discover an entertainer’s paradise that rivals any five-star resort. This dedicated leisure zone comes fully equipped with:
- A bespoke, custom-built wet bar for hosting cocktail nights.
- A state-of-the-art private cinema/media room for the ultimate movie-night experience.
- A massive rumpus and billiard area that effortlessly flows out to the poolside terrace.

While the estate feels like a world away from everything, it boasts an enviable, walk-to everywhere location. A flat, easy 10-minute stroll takes you directly to:
- Castle Towers Shopping Precinct: Sydney’s premier destination for world-class shopping, dining, and gold-class cinemas.
- Metro Station: Offering rapid, high-frequency transit directly into the Sydney CBD and Macquarie Park.
- Elite Schooling & Parks: Zoned for highly sought-after local schools and moments from prestigious private academies.

This is not just a home; it is a legacy. A property of this calibre, size, and location is rarely replicated and never forgotten.


Land Size: 3,977 sqm approx.


Please be aware that open home times are subject to change at short notice. Please check the listing on the day of the inspection to confirm the scheduled time.


Disclaimer: All information contained herein is gathered from sources we believe reliable. We have no reason to doubt its accuracy. However, we cannot guarantee it. All interested parties are strongly advised to conduct their own due diligence and should make and rely upon their own enquiries. Please be advised that some images used in this advertisement may have been digitally altered or virtually staged. These images are intended for illustrative purposes only and may not accurately reflect the current condition, appearance, or layout of the property.
Type
House
Bedrooms
5
Bathrooms
4
Parkings
2
Area
3,977 m²

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