Back 18 Mason Avenue
Off Market

18 Mason Avenue

Happy Valley SA 5159

3
1
2
145 m²
637 m²
House
Last sold for $925,000
Sam ConlenSam Conlen, last sold this property on 24 March 2026 after 6 days on market.

Overview

Your Family Sanctuary Awaits With The Park At Your Front Door!

Sam Conlen and Tara Witham proudly present 18 Mason Avenue, Happy Valley on the market. Perfectly positioned in one of Happy Valley's best pockets, this versatile family residence offers a unique blend of indoor flexibility and outdoor entertainment. Set on a generous 637sqm allotment in a peaceful, established street, this home is the ultimate "move-in ready" opportunity for families who value space, lifestyle and a sense of community. Directly across from a beautiful local playground and reserve, your extended backyard is right across the road. The floor plan is exceptionally flexible, headlined by a spacious separate rumpus room or fourth bedroom if you'd prefer. This standalone space is perfect as a teenage retreat, a home office, or a gym/pool room. Inside the main residence, you'll find three comfortable bedrooms (the master and second with built-in robes) serviced by a neat central bathroom with a separate toilet for family convenience. The living zones include a light-filled lounge that flows effortlessly into a dedicated sitting room and a central kitchen/meals area. The kitchen is a chef's delight, complete with a walk-in pantry, gas cooking, a dishwasher and a stainless steel wall oven, ensuring it truly remains the heart of the home. However, it's the outdoor space that steals the show. A massive undercover entertainment area provides a grand stage for year-round gatherings, overlooking a backyard filled with established fruit trees. With double-gate access at the front and a secure, fully fenced perimeter, there is plenty of room for kids and pets to play safely. Location is the hallmark of 18 Mason Avenue. Being on the "Hub" side of Happy Valley, you are within a short walking distance of the Aberfoyle Hub Shopping Complex, featuring supermarkets, restaurants and the Hub Interchange for easy city commuting. Nature lovers will appreciate the proximity to Thalassa Park and the Rose Garden walking trails, while the Happy Valley Reservoir is just minutes away for kayaking and weekend adventures. Zoned for Aberfoyle Park High School and just moments from Happy Valley Primary, this home offers a "walk-to-everything" lifestyle that is rare to find. What we love: - Three bedrooms in the main house plus a separate rumpus/4th bedroom - Features a comfortable formal lounge with gas heating and an adjacent sitting room for flexible family downtime - Well-appointed kitchen with a walk-in pantry, stainless steel appliances and a double sink - Ducted evaporative cooling and gas heating - A substantial undercover outdoor area designed for large-scale family gatherings regardless of the season - Ample off-street parking with double-gate access, providing secure storage for a boat, trailer, or multiple cars - Located in a quiet, low-traffic street directly opposite a well-maintained reserve and playground - Fully fenced with secure double-gate access - Perfectly positioned within the high-demand Aberfoyle Park High School catchment - 637sqm allotment (approx) - Built in 1977 For more information contact Sam Conlen and Tara Witham. Disclaimer - Every precaution has been taken to establish the accuracy of the material herein. Prospective purchasers should not confine themselves to the contents but should make their own enquiries to satisfy themselves in all respects. Ray White Flagstaff Hill will not accept any responsibility should any details prove to be incomplete or incorrect - RLA 284838

Features

3 bedrooms
1 bathroom
2 carspaces
2 carport spaces
145 m² floor area
637 m² lot size
House

Estimated Value

Based on this property and similar 3 bedroom houses sold in Happy Valley over the last 12 months, the estimated median property value of 18 Mason Avenue is $830k.

Median value
$830k
Estimated value range
$650k - $1.14m
Median days on market
22
Estimated value trend
11%
increase over the last 12 months
Average days on market is based on recent, comparable sales in Happy Valley. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 18 Mason Avenue

2026
Sold
$925,000
24 Mar 2026 by Sam Conlen, of Ray White Flagstaff Hill
2011
Sold
Undisclosed
Private Sale/Treaty on 18 Aug 2011

Happy sellers in Happy Valley

93%
93% of sellers in Happy Valley reported that their sale price either exceeded or met their price expectations.

Happy Valley stands out for consistently delivering exceptional satisfaction and strong market results for homeowners.

This is based on voluntary sentiment collected from 22 reviews in Happy Valley over the last 12 months.

Local market activity for 3 bedroom houses in Happy Valley

In the last 12 months, 69 three-bedroom houses similar to 18 Mason Avenue, have been sold.

This represents a 40% increase in three-bedroom houses sales when compared to the previous 12 months.

Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in Happy Valley

or
Skip the list and find your ideal agent to sell your propertyFind My Agent
© 2026 RateMyAgent