Thornleigh NSW Property Investment

Hornsby · 2120 · Score: 69/100 · Buy

Median House Price
$1.87M
Rental Yield
2.5%
Vacancy Rate
1.6%
Median Weekly Rent
$885/wk
Median Unit Price
$1.20M
Population
8,898
Days on Market
35 days
Annual Growth
19.9%
AI Investment Analysis

Thornleigh NSW Investment Brief

BUY2.5% gross yield on a $1,866,416 median.

THE MARKET

Thornleigh has compounded at 5.1%/yr over 5 years — a house that cost $1,455,442 in 2021 is worth $1,866,416 today. Properties are sitting on market for 35 days (roughly balanced conditions). At the same growth rate, today's median reaches $2,393,437 by 2031.

  • Median house: $1,866,416 | Units: $1,203,355
  • Gross yield: 2.5% | Net yield: 1.0%
  • 5yr price CAGR: 5.1%/yr | 3yr forecast: 13.5%/yr
  • Population: 8,898 | Owner-occupier rate: 78% | Affluence: Very High
  • Supply pipeline: Low — Price growth outpacing new supply, limited development pipeline

RENTAL SNAPSHOT

  • Vacancy: 1.6% (improving) | Rental demand: High
  • Median weekly rent: $885/wk | Days on market: 35 (stable)
  • Landlord market — rents likely to keep rising.

SHORT-TERM RENTAL

Insufficient STR data for this suburb. Run a specific address analysis for property-level STR projections.

INFRASTRUCTURE & CATALYSTS

  • NorthConnex Tunnel (Operational)
  • Beaches Link Tunnel (Sydney) (Announced)
  • Sydney Metro West (Under Construction)
  • Parramatta Light Rail Stage 1 (Operational)
  • Transport: Thornleigh station 0.8km away

BULL CASE

If Thornleigh maintains 3%+ annual growth and vacancy stays below 1.1%, median prices could reach $2,146,378 within 3 years with yields compressing slightly as capital values rise.

BEAR CASE

A market correction or interest rate shock could see prices in Thornleigh pull back 10-15% from $1,866,416, with vacancy rising to 2.9% and rental yields softening as tenants gain leverage.

KEY RISKS

  • No significant risk factors identified for this suburb

COMPARABLE MARKETS

  • Canley Vale (NSW): $1,345,042 median, 2.7% yield, 30.0% 1yr growth
  • Holroyd (NSW): $1,497,415 median, 2.5% yield, 4.2% 1yr growth
  • Berala (NSW): $1,695,375 median, 2.3% yield, 5.1% 1yr growth

THE PLAY

Thornleigh presents a compelling investment opportunity. The combination of solid fundamentals and high rental demand supports entry at current price levels. Proceed with due diligence on specific properties. Target gross yields above 2.5% and prioritise properties with value-add potential. Consider timing entry around the current recovery phase of the market cycle.

  • Entry range: $1,679,774$2,053,058
  • Minimum gross yield to target: 4.5%
  • Watch signal: vacancy staying below 2% and days on market falling below 35

This analysis is for informational purposes only and does not constitute financial, legal, or investment advice. Seek professional advice before making investment decisions.

Gentrification Index

Early gentrification signals4.0/10
High SEIFA decile — already upgraded or established affluent area
Moderate capital growth (5.1% CAGR)
Inner/middle ring location (19.6km to CBD) — high gentrification corridor
Active development pipeline (2252 approvals) — supply attracting new residents
Strong public transport infrastructure — supports walkable gentrification

Growth Forecast

high confidence
1yr Forecast
5.9%
p.a.
2yr Forecast
5.4%
p.a.
5yr Forecast
4.7%
p.a.

Basis: 5yr CAGR 5.1% + 10yr CAGR 7.7%

Growth drivers
  • +Low rental vacancy (1.6%) — constrained supply
  • +Premium transport infrastructure — supports long-term capital growth
Headwinds
  • High supply pipeline (2252 new approvals) — may cap price growth

Suburb Metric Thresholds

8 green6 yellow2 red
Rental Vacancy Rate
1.6 high impact
Days on Market
35 high impact
Weekly Rent (house)
885 medium impact
5yr Price CAGR
5.11 high impact
10yr Price CAGR
7.65 high impact
1yr Price Growth
19.9 medium impact
Population Growth
0.76 high impact
Median Household Income
2643 medium impact
Unemployment Rate
4.3 medium impact
Public Transport Score
8.7 medium impact
School Zone Quality
6.4 medium impact
Distance to CBD
19.63 medium impact
SEIFA Advantage/Disadvantage
10 medium impact
Owner Occupier Rate
77.9 medium impact
Gross Rental Yield (%)
2.47 high impact
Net Rental Yield (%)
0.97 high impact

Macro Environment

Macro Indicators

Cash Rate

4.35%

0.25%

Cash rate as at 2026-05-06 · Credit data 2026-04

Suburb Supply & Demand

Suburb Supply Pipeline — New Dwelling Approvals

627

2020

418

2021

423

2022

391

2023

393

2025

New dwelling approvals — higher numbers mean more future supply

Socio-Economic Profile

Source: ABS Census 2021

SEIFA Index · Postcode 2120

Most disadvantagedLeast disadvantaged

Decile 10 of 10 — Low disadvantage

Population

20,988

Education (IEO)

10/10

Econ. Resources (IER)

10/10

10-Year Investment Projection

Modelled on Thornleigh NSW data — rent, capital growth, tax, and depreciation over 10 years.

Pre-filled: $885/wk median rent for Thornleigh. Capital growth and rent increase are editable assumptions.

Schools

In your catchment

Pennant Hls PS
PrimaryGovernment
8.9/10
Normanhurst WPS
PrimaryGovernment
8.8/10
Turramurra HS
SecondaryGovernment
8.3/10

These are the government-school zones containing this suburb centroid. Specific addresses within the suburb may fall in different catchments — confirm with the school directly.

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Data sourced from ABS, state government property sales, and Airbnb market analytics. For informational purposes only — not financial advice.