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SA › Happy Valley › Mason Ave

11 Mason Ave, Happy Valley SA 5159

House

$811,800

Last sold

26 May 2025

3

Bedrooms

1

Bathrooms

2

Car spaces

670 m²

Land

120 m²

Building

Districts ViewPrice evidencePlanningSite constraintsHistoryListing

Districts View

What should you know about this lot before spending serious money?

Why this property?

  • FactLast recorded sale $811,800 (26 May 2025).(Recorded sale)
  • CalculationLand 670 m² against a 120 m² dwelling — the land is most of what is being bought.(Districts calculation)
  • CalculationRecorded House sales in Happy Valley (last 5 years) with land size: median $1,025/m² of land (n=159). Districts calculation from recorded sales — not a valuation.(Districts recorded sales)

What could make it worth more?

  • InterpretationA large lot with a small dwelling means the value case rests on the land and what the zone allows on it, not the house.
  • FactZoned General Neighbourhood (GN) under the Planning and Design Code.(Location SA · 31 Aug 2026)

What could make it worth less?

No detected risks — but see the checklist: absence of evidence is not an all-clear.

What should you verify next?

  1. 1No hazard layer has been retrieved — confirm flood, bushfire and heritage exposure from council mapping before an offer.

Each line above is labelled. A fact is quoted from the named source, with its date. A calculation is worked out by Districts from those facts — you can check the arithmetic. An interpretation is Districts' opinion of what the evidence means, not a fact, a valuation, or advice. Anything we haven't retrieved yet is marked as missing rather than treated as a pass.

Price evidence

What this lot has actually traded at

Last sold

$811,800

26 May 2025 · derived via latest_sale

Local land rate: recorded House sales in Happy Valley (last 5 years) with land size have a median of $1,025/m² of land (n=159). Districts calculation from recorded sales — not a valuation.

Happy Valley at a glance

12,016

People

$865,250

Median sale

$637/wk

Median rent

3.83%

Suburb gross yield

Median sale from 12 recorded sales (last 12 months) — a Districts calculation.

See the full Happy Valley report →

Vs Happy Valley

-6.2%

Median sale

Suburb $865,250

+0.25 pp

Gross yield

Suburb 3.83%

Suburb median $865,250 from 12 recorded sales (last 12 months) — a Districts calculation, not a portal figure.

Planning

Planning and development

Planning scheme

Planning and Design Code

Zone

General Neighbourhood

GN

Jurisdiction

Onkaparinga

Onkaparinga, SA

Planning overlays

  • Data unavailable

Development activity

Data unavailable

Source

  • Provider: Location SA
  • Dataset: Planning and Design Code Zones
  • Retrieved: 31 Aug 2026
  • Version: 1
  • Parcel: 1462046008

Planning facts are copied from official government GIS where available. Where an official property PDF exists (VicPlan, PlanBuild), Districts stores and serves that original document. Neither is a planning certificate, survey, or advice.

Site

Terrain

Terrain has not been calculated for this property yet.

Slope is calculated on a projected metric grid from a public DEM clip of the official parcel. This is not a survey, engineering, or insurance assessment.

Flood, bushfire and heritage

i

Flood

Not retrieved

Flood exposure has not been retrieved from any source for this property yet. Unknown is not the same as clear.

Bushfire

Not retrieved

Bushfire exposure has not been retrieved from any source for this property yet. Unknown is not the same as clear.

Heritage

Not retrieved

Heritage listing has not been retrieved from any source for this property yet. Unknown is not the same as clear.

Records

Property history

  1. Sold$811,80026 May 2025
  2. Listedprice unknowncompleted12 May 2025
  3. Listedprice unknowncompleted12 May 2025

Events are recorded observations from public listings, kept with their source and date. Missing values are shown as unknown, never estimated.

Capital growth

SA

Why this lot, not just this suburb

Why could this property outperform?

Confidence: low

Zoned General Neighbourhood · GN (Planning and Design Code). Official parcel area about 674 m². Dual occupancy is not confirmed from the controls loaded for this lot. Two-lot subdivision is unknown without minimum lot size and frontage. This is a screen, not a planning certificate. Zoning and lot facts are a starting point, not proof this lot outperforms the suburb. Funded catalyst catchments are not loaded. A TOD badge is not this product.

What could kill that thesis?

Confidence: low

Flood overlay has not been queried for this lot. Missing layer is unknown, not “no.” Street frontage and true lot geometry are not confirmed without open cadastre. Minimum lot size is not loaded, so two-lot subdivision is not confirmed. Nearby development applications are not loaded. This lot’s own applications are a separate question.

Rental

Income, competition, and yield

What will it realistically rent for?

Confidence: low

No advertised rent is recorded. Suburb median rent $637/week — not this address. An inferred likely-rent range is not shown until official bond series are loaded for this dwelling type and bedrooms.

What competition will it face?

Current comparable rental listings within 400 m of this lot are not loaded. Nearby development applications are not loaded. This lot’s own applications are a separate question. Supply pressure needs comparable listings near this lot plus a nearby DA pipeline. Neither is loaded. Suburb vacancy or leased-tape days are not this property’s competition.

What does the yield actually look like?

Confidence: low

Yield cannot be shown without both a price and a rent figure. Net yield is not estimated from gross advertising copy. Net yield / holding costs are not estimated outside NSW without inventing land tax.

Verdict

What this means for this property

Districts view

Not enough official evidence yet to underwrite this as an investment.

Detail

The same ten questions apply to every property. Missing flood, nearby DAs, achieved rents, or lot geometry is unknown — not “no.”

Read more

Do not treat a suburb median, an advertised yield, or a listing score as the case for this lot.

The evidence loaded so far isn't enough on its own to change a buy, offer, or walk-away decision for this property.

Evidence

What is known for this property

Districts asks the same ten questions of every property. If one shows as unknown, that data isn't published for this state or hasn't been loaded yet — the question stays visible so you can see exactly what's missing.

3 of 10 questions answered so far

  • Development optionality of this lot

    Knownlow

    Zoned General Neighbourhood · GN (Planning and Design Code). Official parcel area about 674 m². Dual occupancy is not confirmed from the controls loaded for this lot. Two-lot subdivision is unknown without minimum lot size and frontage. This is a screen, not a planning certificate.

  • Nearby development pipeline

    Unknown

    Nearby development applications are not loaded. This lot’s own applications are a separate question.

  • Honest achievable rent

    Knownlow

    This is not “bond data says this address leases for $X.” The comparable figure is a suburb advertised/median rent, not this property. Official bond files (postcode or suburb × type × bedrooms) are not loaded yet.

  • Rental supply pressure

    Unknown

    Supply pressure needs comparable listings near this lot plus a nearby DA pipeline. Neither is loaded.

  • Why is this cheap?

    Knownmedium

    Official parcel about 674 m² — land size can look like optionality. No material overlays were returned that would explain a discount. That is not proof the price is fair. Nearby DAs, easements, and flood-layer gaps can still explain a cheap-looking listing — those are not all loaded.

  • Lot-level flood

    Unknown

    Flood overlay has not been queried for this lot. Missing layer is unknown, not “no.”

  • Catalyst exposure

    Unknown

    Funded catalyst catchments are not loaded. A TOD badge is not this product.

  • This lot's DA history

    Unknown

    No DA adapter returned applications for this parcel.

  • Statutory land value versus ask

    Unknown

    Statutory land value is not available as free bulk data in this jurisdiction. Do not fake it with a suburb median.

  • Net yield / holding costs

    Unknown

    Net yield / holding costs are not estimated outside NSW without inventing land tax.

Area

Happy Valley in one glance

Happy Valley at a glance

12,016

People

$865,250

Median sale

$637/wk

Median rent

3.83%

Suburb gross yield

Median sale from 12 recorded sales (last 12 months) — a Districts calculation.

See the full Happy Valley report →

Keep researching

  • Why Happy Valley? Read the area thesis →
  • What else is on the market in Happy Valley →
  • Other records on Mason Ave →

Listing material

Listed by Magain Real Estate

SOLD BY DANIELLE COMER

Please contact Danielle Comer from Magain Real Estate for all your property advice.

Nestled in the heart of family-friendly Happy Valley, this beautifully updated home offers the perfect blend of comfort, space, and convenience. Every detail has been thoughtfully considered, creating a house that's as functional as it is stylish. Loved for its peaceful surroundings, reputable schools, leafy parks, and excellent transport links, Happy Valley is a suburb that continues to grow in popularity. Whether you're upsizing, downsizing, or simply seeking a well-positioned place to call home, this property delivers on lifestyle and location.

Three well-proportioned bedrooms sit together in a quiet wing of the home, the master featuring a large built-in robe and easy access to the updated central bathroom. A generous front lounge flows through to the open-plan kitchen and dining space, ideal for relaxed living or entertaining. The kitchen is stylishly renovated with sleek cabinetry, stainless steel appliances including a gas cooktop and dishwasher, and ample storage throughout. Overlooking the rear yard, the adjoining dining area is perfectly positioned to enjoy a seamless connection to the outdoor entertaining space.

Read the full description

Comfort is assured year-round with ducted reverse cycle heating and cooling flowing throughout the home, ensuring every season is enjoyed in comfort. Thoughtfully chosen blinds to the kitchen window and sliding door not only enhance privacy but also improve insulation, adding to the home's energy efficiency and everyday liveability.

Step outside and you'll find the standout feature of this property, its meticulously maintained gardens. The outdoor entertaining area provides the perfect space to relax or host friends and family, all surrounded by manicured garden beds and shaded by beautiful crepe myrtle trees that offer privacy and seasonal colour.

A thriving selection of fruit trees creates your edible oasis, with an impressive lineup including four apple trees, plus apricot, cherry, mandarin, nectarine, orange (two), lemon, cumquat, pear, and plum trees. A dedicated veggie and herb garden produces asparagus, oregano, rosemary, and more, so you can enjoy fresh homegrown ingredients straight from your yard. Two rainwater tanks help maintain this green paradise with ease, and a garden shed provides handy storage for all your tools and gardening supplies.

This is a home that's been lovingly maintained inside and out, with an easy-care yet productive garden setting, energy-efficient updates, A double carport featuring rear yard gates that open both inward and outward, ensuring secure storage options, and space to enjoy both indoors and out. It's a rare find in a tightly held pocket. Be quick to make it yours.

Please note that all floorplans, photos, and text are for illustrative purposes only and are not intended to be part of any contract. All measurements are approximate, and details intended to be relied upon should be independently verified.

Magain Real Estate Happy Valley

RLA | 222182

Listing description written by Danielle Comer, Magain Real Estate — reproduced as published, not verified by Districts.

Property features

  • Built-in Robes
  • Dishwasher
  • Fully Fenced
  • Outdoor Entertaining
  • Reverse Cycle Aircon
  • Shed
  • Toilets: 1
  • Water Tank
Districts

Australian property research from recorded sales, listings, and official layers. Missing data is shown as unavailable, never filled in.

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Research purposes only. Not personal financial advice, a valuation, or a planning certificate. Always speak to a licensed financial adviser before you act.