GoSiteHunt

Home / Suburb data / Flagstaff Hill (SA)

Flagstaff Hill (SA) property development snapshot

GoSiteHunt Research · South Australia · Onkaparinga · sales 3Q 2026 · rents 1 January - 31 March 2026

$1,228,000
Median house price · 3Q 2026
+24%
Median change, year on year
26
House sales in the period
$600/wk
Median rent · houses, all beds
2.5%
Indicative gross yield

Median rents by bedroom

Type1-bed2-bed3-bed4+ bedAll
House$378/wk (low sample)—$595/wk (5 bonds)$750/wk (low sample)$600/wk (10 bonds)
Unit——$550/wk (low sample)—$550/wk (low sample)

Bond-lodgement medians from the SA Rental Bond Data — Private Rental Report, data.sa.gov.au (CC-BY, SA Housing Trust), 1 January - 31 March 2026. "Low sample" = the count is masked or small at source; treat those medians with care.

What the data suggests for developers.

At around 2.5% gross, rent barely registers against the $1,228,000 median — this is an end-value-led market. A feasibility in Flagstaff Hill stands or falls on the sale price of the finished product, and holding costs bite harder while you build. The median moved +24% year-on-year on 26 sales — momentum is real, but never pay for it twice: if the asking price already banks the growth, the residual land value has to be run on today's evidence, not the trend line. All of the above is area-level screening, not advice: a specific parcel lives or dies on zoning, overlays, frontage, and the end value of what it can actually carry.

Check a specific address in Flagstaff Hill.

This page is suburb-level screening. For one property — zoning, what could be built, what a developer could pay — run a GoSiteHunt site check, screen it with the Deal Killer Checklist (1 credit; new accounts get 20 free credits for 30 days), or see how many units fit on a block.

Related suburb snapshots: Aberfoyle Park · Aldinga · Aldinga Beach

State-wide ranking: Adelaide Opportunity Index · all covered areas: suburb data hub

Granularity & method.

Suburb-level data. Rents are quarterly bond-lodgement medians from the SA Private Rental Report; sale medians are the data.sa.gov.au metropolitan median house sales series (country suburbs may show rents only). Indicative gross yield = headline weekly bond median × 52 ÷ sale median — a screening ratio, not a valuation input.

Sources: SA Private Rental Report bond data, SA Housing Trust via data.sa.gov.au (CC-BY) · data.sa.gov.au Metropolitan Median House Sales (CC-BY 4.0) · Indicative screening data — not financial, investment, valuation or planning advice. Area medians can move sharply between periods, especially on thin samples. © Madison Jade Pty Ltd.