Acquisitions · Updated Sept 2026

What Are Comparable Sales (Comps) in Property Valuation?

Comparable sales (or “comps”) are recently settled property transactions (typically within the past 3 to 6 months and within 0.5 to 1.5 kilometres) that share the same land size, bedroom/bathroom configuration, building condition, and street quality as the property being valued. Bank valuers and buyer’s agents use settled comparable sales—not current advertised asking prices—as the primary legal evidence of what a property is worth today. Ripehouse Advisory cross-checks every comparable sale against its Ripehouse Street Score so a home on a 25/100 street is never valued against a sale on a 100/100 street.

Street-Score-Matched Settled Comparables (Last 90 Days, Same SA1 Profile)96

The exact standard used by Ripehouse analysts and valuers

Selling Agent’s “Cherry-Picked” Comparables Sheet35

Often compares a B-grade street listing against A-grade street sales

Formula / Rule: Fair Market Value = Settled Sales of Equivalent Land, Condition & SA1 Street Score

Ripehouse Benchmark: Settled Sales Within ≤ 90–180 Days on Matching Street Score Blocks. Check any market live in our Suburb R-Score tool or Street Score tool.

CategoryAcquisitions

Part of the Ripehouse Advisory quantitative property investment framework.

Ripehouse BenchmarkSettled Sales Within ≤ 90–180 Days on Matching Street Score Blocks

Fair Market Value = Settled Sales of Equivalent Land, Condition & SA1 Street Score

National Coverage15,000+ Suburbs

Measured monthly across 30 Cities, 544 LGAs, and 518,400+ Australian streets.

How to Read Comparable Sales Analysis (Comps) in Australian Property

Reading / TierMarket InterpretationWhat It Means for Property Investors
Inferior ComparableSmaller land, unrenovated, or lower Street ScoreSets the floor price below the subject property
Direct ComparableMatching land size, dwelling, and SA1 Street ScoreEstablishes true current bank valuation range
Superior ComparableLarger land, renovated, or higher Street ScoreSets the ceiling price you must not pay above

How selling agents use mismatched comparables—and how to spot it

At almost every open home, the selling agent hands out a sheet of three recent sales that justify a high price guide. When you run those three addresses through the Ripehouse Street Score (/streets), you will frequently discover that the high-priced sales occurred on 75–100/100 owner-occupied streets while the listing being sold sits on a 25/100 block. Checking the Street Score takes 10 seconds and saves tens of thousands at the negotiation table.

Top Australian Suburbs Measured this Month (Sept 2026)

Live snapshot from Ripehouse Advisory’s monthly 15,000-suburb warehouse bake. Click any suburb to inspect its full R-Score report or drill down to its street-level scores.

SuburbState & Council (LGA)R-ScoreMedian PriceGross YieldVacancyDrill Down
Docklands (3008)VIC · Melbourne100/100$1,152,00016.2%7.4%Suburb · Streets →
Alice Springs (0870)NT · Alice Springs100/100$355,00015.4%2.1%Suburb · Streets →
Weyba Downs (4562)QLD · Sunshine Coast100/100$1,001,00015.1%11.1%Suburb · Streets →
Goodmans Ford (2575)NSW · Upper Lachlan Shire100/100$380,00014.9%25%Suburb · Streets →
Bunyan (2630)NSW · Snowy Monaro Regional100/100$380,00014.6%0%Suburb · Streets →
Knowsley (3523)VIC · Greater Bendigo100/100$540,00010.6%12.5%Suburb · Streets →
Mia Mia (3444)VIC · Greater Bendigo100/100$250,00010.4%11.1%Suburb · Streets →
Myalup (6220)WA · Harvey100/100$435,00010.2%5%Suburb · Streets →

Apply the Data to Your Portfolio

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Comparable Sales Analysis (Comps) FAQs

Frequently Asked Questions: Comparable Sales Analysis (Comps)

Key answers from Ripehouse Advisory’s quantitative research team (Sept 2026).

What Are Comparable Sales (Comps) in Property Valuation?

Comparable sales (or “comps”) are recently settled property transactions (typically within the past 3 to 6 months and within 0.5 to 1.5 kilometres) that share the same land size, bedroom/bathroom configuration, building condition, and street quality as the property being valued. Bank valuers and buyer’s agents use settled comparable sales—not current advertised asking prices—as the primary legal evidence of what a property is worth today. Ripehouse Advisory cross-checks every comparable sale against its Ripehouse Street Score so a home on a 25/100 street is never valued against a sale on a 100/100 street.

How is Comparable Sales Analysis (Comps) calculated or measured in Australia?

Comparable Sales Analysis (Comps) is measured using the formula: Fair Market Value = Settled Sales of Equivalent Land, Condition & SA1 Street Score. Ripehouse Advisory’s target benchmark band is: Settled Sales Within ≤ 90–180 Days on Matching Street Score Blocks.

How can I check Comparable Sales Analysis (Comps) for any Australian suburb or street?

You can inspect live monthly R-Scores, median prices, weekly rents, gross yields, vacancy rates, and ABS SA1 Street Scores across 15,000+ suburbs and 518,400+ streets for free at ripehouseadvisory.com.au/suburbs and /streets.