Comprehensive Quantity Surveying & Cost Consultancy Services Across Australia
RBB (Ralph Beattie Bosworth) is Western Australia’s leading firm of Quantity Surveyors, providing independent cost consultancy and construction budgeting services since 1968. As a wholly Australian-owned practice, we’ve played a pivotal role in delivering commercial developments, infrastructure projects, and residential construction across Perth and regional WA. Our services extend across Australia, supporting projects in urban centres and remote regions.
With over 50 years of experience, our team helps clients manage construction costs with precision – offering accurate cost estimates, detailed reporting, and strategic financial guidance that ensures quality outcomes without budget overruns. Whether you’re planning a civic landmark, residential masterplan, or technical facility, RBB delivers scalable solutions tailored to your project’s size and complexity.
of Service
Precision-Driven Results
- Cost Planning & Estimating
- Contract Administration & Claims Advice
- Tax Depreciation Schedules
- Insurance Replacement Valuations
- Sinking Fund Forecasting
- Expert Witness Reports
- Bills of Quantities & Tender Documentation
- Project Financial Reporting & Risk Management
- Cash Flow Forecasting & Resource Histograms
- Bid & Tender Assessment
Our Services
Cost Management
Ancillary Services
Industry Sectors
RBB Perth supports clients across a diverse range of sectors, bringing specialised insight and experience to each project:
| Sector | Project Type |
|---|---|
| Government | Civic buildings, infrastructure and public facilities |
| Residential | Low-rise, medium-rise, high-rise, remote and regional |
| Infrastructure & Civil | Roads, rail, water, power and defence |
| Health & Education | Hospitals, schools and universities |
| Hospitality & Leisure | Hotels, resorts and entertainment venues |
| Heritage & Civic | Restoration and cultural precincts |
| Mining & Energy | Oil & gas, renewables and industrial facilities |
| Marine Infrastructure & Ports | Marinas and Ports |
Why Choose RBB
From Concept to Completion – On Budget, Every Time
- WA’s Largest Independent Quantity Surveying Firm
- Over 50 Years of Trusted Service
- AIQS & RICS Certified Professionals
- ISO 9001 Accredited Quality Management System
- Director-Led, Client-Focused Delivery
- 100% Australian Owned
- Technology-Driven Forecasting & Modelling
Our Projects
Projects Powered by Strategic Insight,
Cost Certainty, and Unmatched Experience
RBB maintain memberships with the following entities
