Koste Chartered Quantity Surveyors 1300 669 400  |  info@koste.ai

Australia's National Cost Database

Koste Chartered Quantity Surveyors

Australia's leading Chartered Quantity Surveyors specialising in tax depreciation schedules, insurance replacement cost reports, and construction cost analysis. ATO-compliant. AIQS & RICS certified.

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Our Services

Tax Depreciation Schedules

ATO-compliant depreciation reports for residential and commercial investment properties. Average $9,000+ first-year deduction. From $695+GST.

CGT Cost Base Reports

Reconstruct renovation costs for Capital Gains Tax purposes. ATO-accepted methodology prepared by Chartered Quantity Surveyors.

Insurance Replacement Cost

Accurate rebuild cost valuations to ensure you are fully covered. 80% of Australian property owners are underinsured.

Asset Registers

AASB and IFRS-compliant asset registers for commercial, strata, and government properties.

Lifecycle & Capital Planning

30-year capital expenditure forecasts for strata, commercial, and government property portfolios.

Construction Cost Reports

Independent construction cost estimates and quantity surveying reports for development projects across Australia.

Why Choose Koste?

  • Led by Mark Kilroy BSc (Hons), MAIQS, CQS, MRICS — Founder and Chartered Quantity Surveyor
  • Members of the Australian Institute of Quantity Surveyors (AIQS) and Royal Institution of Chartered Surveyors (RICS)
  • ATO-compliant reports accepted by all major accounting firms and the Australian Taxation Office
  • Every report includes a full Audit Support Pack — methodology notes, inspection evidence, and ATO legislative references
  • Serving all Australian states and territories: QLD, NSW, VIC, WA, SA, TAS, NT, ACT
  • Average $9,000+ first-year tax deduction for residential properties

Free Property Investment Tools

Tax Depreciation CalculatorConstruction Cost CalculatorCGT CalculatorStamp Duty CalculatorROI CalculatorEquity Unlock Calculator

Clear answers to common property, construction and tax depreciation questions.

Tax Depreciation What is the difference between Division 40 and Division 43? Construction Costs Construction Costs CGT Cost Base How do I calculate my property cost base? Buying Property Difference Between Construction Cost Estimate and Quantity Surveyor Report Owning Property Do I Need a Tax Depreciation Schedule for My Property?

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Contact Us

Phone: 1300 669 400

Email: info@koste.ai

Address: Riva Offices, 2/14 Edgewater Court, Robina QLD 4226