Cornerstone Quantity Surveying Ltd provides independent cost consultancy for homeowners, developers and contractors across London, from our registered office in the city’s East. Our founder, Ryan Macdonald, has built his career on London projects over more than 22 years, and the capital remains at the heart of our work today.
From period conversions in the inner boroughs to new-build residential and mixed-use schemes further out, London’s construction market is as varied as it is competitive – which makes robust cost control and clear contractual governance essential at every stage.
Quantity Surveying Support Across Greater London.
London’s boroughs each bring their own planning priorities, construction costs and delivery challenges, from high-value central schemes to suburban extensions and loft conversions. We work across this full spectrum, giving clients the benefit of genuine familiarity with how different London planning authorities and contractors operate.
Whether you’re a homeowner planning a single extension or a developer managing a multi-unit scheme, we bring the same meticulous approach to cost planning, procurement and final accounts – backed by 22+ years of professional quantity surveying experience across the capital.
Our Services.
Wherever your project is based, we provide the same core services:
FAQs for London Projects.
Which parts of London do you cover?
We work across Greater London, with particular depth in the East London boroughs near our registered office, alongside projects further afield across the capital.
Do you work on larger developer-led schemes as well as homeowner projects?
Yes – our portfolio spans everything from single-property extensions to multi-unit residential and mixed-use developments for commercial clients.
Can you work with multiple London borough councils’ planning requirements?
Yes – we regularly work alongside architects and planning consultants across different London boroughs to keep cost plans aligned with what’s realistically achievable locally.
How quickly can you start on a London project?
Get in touch with a brief outline of your project and we’ll arrange an initial discussion, usually within a few days.
- Local expertise in London’s construction market
- Transparent, client-focused service
- 20+ years of professional experience
- Commitment to accuracy, reliability and results
Let’s Talk About Your London Project.
At Cornerstone Quantity Surveying Ltd, we combine precision, transparency, and collaboration to deliver exceptional results, adapting to each client’s needs on projects of every scale.