10 Dianne St, Happy Valley is a 5 bedroom, 1 bathroom House with 3 parking spaces. The property has a land size of 781m2 and floor size of 262m2. While the property is not currently for sale or for rent, it was last sold in May 2026. There are other 5 bedroom House sold in Happy Valley in the last 12 months.
Positioned in a highly sought-after pocket of Happy Valley, this is a rare and strategic opportunity to secure a substantial landholding offering both immediate income potential and future development upside. Set on approximately 781sqm, with a 35m Frontage! The property presents multiple pathways to value, ideal for investors, builders, and developers looking to capitalise on flexibility and long-term growth.
The site offers strong development fundamentals, with all proposed allotments fronting Francis Avenue, approximately 11m+ frontage per lot, and no requirement for shared access - a rare and efficient subdivision outcome. A concept plan is available for illustrative purposes.
The existing improvements provide scope for dual income potential, with the ability to create two separate rental streams. The property has previously been rented for $700pw, and once the granny flat is completed it could be rented for another $300pw with it's own independent driveway and carport, offering a compelling "hold and develop later" strategy.
Alternatively, the property is well suited for a 3 Torrens Title allotment development (STCC), proposed subdivision provided. Each lot can accommodate a modern 4-bedroom, 2-bathroom home with double garages, each with individual street frontage - a highly desirable outcome compared to typical battle-axe configurations.
Opportunities combining immediate income potential, clear development upside, and strong positioning within a growing southern corridor are increasingly rare.
This is a strategic acquisition for buyers looking to maximise both short-term yield and long-term capital growth. Happy Valley continues to emerge as a high-growth southern suburb, offering the ideal balance of lifestyle and convenience.
Enjoy the natural beauty of the nearby Happy Valley Reservoir, while some of Adelaide's best beaches - Brighton (15 minutes), Glenelg and Port Noarlunga (20 minutes) - are all within easy reach.
Daily essentials are close by with Valley Central just minutes away, while Westfield Marion provides major retail and dining options only 15 minutes from your doorstep. With direct access to the Southern Expressway, the Adelaide CBD is approximately 30 minutes away, while Adelaide Airport is just 27 minutes. For weekend escapes, the renowned McLaren Vale wine region is only a 25-minute scenic drive.
Braeview School R-6 a short walk around the corner, zoned for Reynella East College R-12 1.16km away and another five kindergartens and seven other schools less than 3.5kms away.
A location that combines family lifestyle, accessibility, and strong growth potential - making it an increasingly attractive choice for both homeowners and investors. Early enquiry is strongly encouraged, with strong interest expected from a range of buyer groups.
Disclaimer: As much as we aimed to have all details represented within this advertisement be true and correct, it is the buyer/ purchaser's responsibility to complete the correct due diligence while viewing and purchasing the property throughout the active campaign.
The proposed plans are indicative only and for illustrative purposes. No planning, development, or subdivision approvals have been applied for or granted. Purchasers must rely on their own enquiries regarding subdivision or development potential.
Norwood RLA 278530
Property Details: Council | Onkaparinga
Zone | General Neighbourhood
Land | 781sqm (Approx.)
House | 262sqm (Approx.)
Built | 1969
Council Rates | $1,916pa
Water | $97.35pq
ESL | $138.95pa
The size of Happy Valley is approximately 13.1 square kilometres. It has 40 parks covering nearly 11.1% of total area. The population of Happy Valley in 2016 was 11219 people. By 2021 the population was 11420 showing a population growth of 1.8% in the area during that time. The predominant age group in Happy Valley is 60-69 years. Households in Happy Valley are primarily childless couples and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Happy Valley work in a professional occupation.In 2021, 80.70% of the homes in Happy Valley were owner-occupied compared with 79.50% in 2016.
Happy Valley has 4,847 properties. Over the last 5 years, Houses in Happy Valley have seen a 94.45% increase in median value, while Units have seen a 113.24% increase. As at 30 April 2026:
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