Districts
SuburbsBlogSearch
Sign inGet started
Districts
SuburbsBlogSearch
Sign inGet started

NSW › Thornleigh › Duffy Ave

103 Duffy Ave, Thornleigh NSW 2120

House

$2,790,000

Last sold

9 Aug 2025

6

Bedrooms

4

Bathrooms

6

Car spaces

968 m²

Land

Districts ViewPrice evidencePlanningSite constraintsHistoryListing

Districts View

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

Why this property?

  • FactLast recorded sale $2,790,000 (9 Aug 2025).(Recorded sale)
  • FactLand 968 m²; no building size recorded.(Property record)
  • CalculationRecorded House sales in Thornleigh (last 5 years) with land size: median $2,501/m² of land (n=75). Districts calculation from recorded sales — not a valuation.(Districts recorded sales)

What could make it worth more?

No upside evidence detected in the data Districts holds for this lot.

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. 1Official planning layers are still retrieving for this parcel — check back before relying on zoning or overlay absence.
  2. 2No 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

$2,790,000

9 Aug 2025 · derived via latest_sale

Local land rate: recorded House sales in Thornleigh (last 5 years) with land size have a median of $2,501/m² of land (n=75). Districts calculation from recorded sales — not a valuation.

Thornleigh at a glance

9,376

People

$1,840,000

Median sale

$815/wk

Median rent

2.30%

Suburb gross yield

Median sale from 49 recorded sales (last 12 months) — a Districts calculation.

See the full Thornleigh report →

Vs Thornleigh

+51.6%

Median sale

Suburb $1,840,000

-0.78 pp

Gross yield

Suburb 2.30%

Suburb median $1,840,000 from 49 recorded sales (last 12 months) — a Districts calculation, not a portal figure.

Planning

Planning and development

Planning data is being calculated

Development activity

Data unavailable

Source

  • Provider: unavailable
  • Dataset: unavailable
  • Retrieved: not yet retrieved
  • Version: planning-v1

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$2,790,0009 Aug 2025
  2. Listedprice unknowncompleted17 July 2025
  3. Listedprice unknowncompleted17 July 2025
  4. Listedprice unknowncompleted17 July 2025

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

Capital growth

NSW

Why this lot, not just this suburb

Why could this property outperform?

Planning layers have not been retrieved for this property yet. A suburb median or growth rate is not a reason this particular lot would outperform. Funded catalyst catchments are not loaded. A TOD badge is not this product.

What could kill that thesis?

Confidence: low

Official flood overlay has not been retrieved (pending). Missing layer is unknown, not “no.” NSW has a statewide DA API. Nearby (100–800 m) applications are not loaded for this property yet.

Rental

Income, competition, and yield

What will it realistically rent for?

Confidence: low

No advertised rent is recorded. Suburb median rent $815/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. NSW has a statewide DA API. Nearby (100–800 m) applications are not loaded for this property yet. 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. NSW net yield needs land tax and VG inputs that are not loaded. Gross yield from listings is not net yield.

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.

1 of 10 questions answered so far

  • Development optionality of this lot

    Unknown

    Planning layers have not been retrieved for this property yet.

  • Nearby development pipeline

    Unknown

    NSW has a statewide DA API. Nearby (100–800 m) applications are not loaded for this property yet.

  • 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?

    Unknown

    The constraint stack has not been retrieved for this lot, so Districts cannot explain a discount versus land size.

  • Lot-level flood

    Unknown

    Official flood overlay has not been retrieved (pending). 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

    Development applications have not been queried for this parcel.

  • Statutory land value versus ask

    Unknown

    NSW Valuer General land values are not loaded for this property yet.

  • Net yield / holding costs

    Unknown

    NSW net yield needs land tax and VG inputs that are not loaded. Gross yield from listings is not net yield.

Area

Thornleigh in one glance

Thornleigh at a glance

9,376

People

$1,840,000

Median sale

$815/wk

Median rent

2.30%

Suburb gross yield

Median sale from 49 recorded sales (last 12 months) — a Districts calculation.

See the full Thornleigh report →

Keep researching

  • Why Thornleigh? Read the area thesis →
  • What else is on the market in Thornleigh →
  • Other records on Duffy Ave →

Listing material

Listed by Ray White Upper North Shore

SOLD BY AMY KASLAR

Rarely does a property of this proportion and calibre present. Spanning a wide 967.5sqm north-facing parcel with the elegance of a dual-entry circular driveway, this residence is a privilege in spectacular scale and versatility, masterfully zoned to accommodate large and multi-aged households.

Designed to meet the needs of every family member, a cohesive collection of living zones incorporate formal lounge and dining domains, everyday open-plan living spaces, and an upper-level rumpus complete with a well-conceived kitchenette. Ideal for relaxation or work, breakout areas include an under-house basement that's perfect as a teen retreat, gym, or music room, while a dedicated study is complemented by a freestanding, air-conditioned studio.

Masterplanned for grand and casual gatherings, a chef-sized gas kitchen accommodates the space for multiple cooks to work simultaneously. Equally impressive, a brand-new composite deck transitions outdoor entertaining through the rear backyard. Generously scaled bedrooms stretch over both floors culminating in two exceptional primary suites plus a terrace boasting leafy district views.

Read the full description

A remarkable find, just a short walk to Westleigh Village, local buses, and Thornleigh West Public School, this is a home that must be seen.

Accommodation Features:

• Expansive 451sqm layout, incredibly peaceful interiors, soundproof glass, aluminium shutters

• Granite flooring at entrance and laundry, polished flooring, air conditioning

• Motorised blinds, drawers, and UV-protected glass in selected spaces

• Open plan kitchen, stone benchtops, Smeg gas cooktop, oven, built-in microwave

• Bosch dishwasher, sit-at casual meals counter, plumbed fridge connection

• Formal lounge and dining rooms, family living with a stunning wall of glass

• Upper-level rumpus room with kitchenette complete with Zip HydroTap with sparkling water

• Study, basement-level retreat ideal for a gym, break-out space, music room, cellar

• Bedrooms on both floors, two primary bedrooms, each with luxurious ensuite bathrooms and walk-in wardrobes, one with an enormous dressing room/walk-in wardrobe and heating flooring in the bathroom

External Features:

• 967.5sqm allotment, 32.4m frontage, north-facing, dual-entry circular driveway

• Brand new state-of-the-art security cameras with motion detectors, 2-way speaker, and smartphone access

• Expansive, brand-new composite entertaining deck wraps around to the rear

• Independent studio with air conditioning, substantial under-house storage

• All gardens and hedges integrated with a zoned automatic irrigation system, includes upstairs terrace for potted plants

• Solar panels, modern rendered exterior, double garage with electric doors

• Carport for three cars, single carport, gated backyard access

Location Benefits:

• 100m to 586 and 587 bus services to Pennant Hills High, Pennant Hills Station, Normanhurst Boys High School, Barker College, Hornsby Station Bus Interchange

• 600m to Ruddock Park

• 650m to Westleigh Village with ALDI, IGA, cafes, restaurants, and specialty stores

• 700m to Thornleigh West Public School

• 1.6km to Thornleigh Train Station

• 2.8km to Pennant Hills Market Place with Harris Farm Markets and eateries

• 3.6km to Pennant Hills High School

• Close to Loreto Normanhurst, Normanhurst Boys High School, Barker College, Wahroonga Adventist School, Mount St Benedict College, St Leo's Catholic College, Hornsby Girls High School, Abbotsleigh, Knox Grammar

Auction

Saturday 9 August, 11am

Onsite

Contact

Amy Kaslar 0438 404 444

Emily Ashman 0451 007 804

Disclaimer: All information contained here is gathered from sources we believe reliable. We have no reason to doubt its accuracy, however we cannot guarantee it.

Listing description written by Amy Kaslar, Ray White Upper North Shore — reproduced as published, not verified by Districts.

Districts

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

Research

  • Property search
  • Suburb profiles
  • Blog
  • Calculators
  • Follow suburbs
  • Sign in

Learn

  • How we use data
  • What's covered
  • Questions
  • Who it's for
  • Access

Company

  • About
  • Contact
  • support@districts.com.au

Legal

  • Privacy
  • Terms

© 2026 Districts

districts.com.au

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