Senior Quantity Surveyor

Size Group Limited
London

Who is Size?

Launched in 2009 as a small construction venture between two friends, Size Group brings together the vital elements of property from the construction of luxury buildings through to the maintenance and management of a property portfolio.

We now seek a Senior Quantity Surveyor to join our team on a permanent, full-time basis

The Benefits

You'll be joining a collaborative team that delivers meaningful projects for clients with whom we have long-established relationships. This role offers the opportunity to work on a varied portfolio of projects, from small-scale enhancements to significant refurbishment and extension schemes, while playing an important role in developing repeat business and maintaining the exceptional service our clients expect.

This position is ideal for an experienced commercial professional who enjoys variety, values client relationships and takes pride in delivering high-quality projects that improve and enhance existing buildings.

We offer:
  • Competitive salary

  • Auto enrolment to company pension scheme (opt-out option available)

  • Private medical insurance

  • Income protection insurance

  • 26 days annual leave

  • Travel expenses for site-based staff


You’ll play a pivotal role in delivering high-end, prime residential projects, making this an ideal setting to deepen your experience and accelerate your professional growth.

The Culture

At Size Group our values underpin who we are. They form an important benchmark for everyone – collectively and individually. We are:

Empathetic - People-driven and focused
Tenacious - Relentless pursuit of the highest standards
Integrity - Integrity earns trust. Trust builds relationships
Entrepreneurial - Self-starters that push beyond the obvious

We boast a culture that is focused on training and development, career paths and internal progression. What’s more, we’re committed to our employees and offer a range of benefits to support your lifestyle both in and out of the workplace.

The Role

We are seeking an experienced Senior Quantity Surveyor to join our Property Care team, supporting the delivery of special projects for a portfolio of long-standing clients across London and the South East.

These projects typically arise from our ongoing maintenance and property care relationships and involve the refurbishment, alteration, extension and improvement of existing buildings. Projects range from building fabric repairs to extensions, remodelling works, fit-outs and the construction of new ancillary buildings.

As Senior Quantity Surveyor, you will take commercial responsibility for multiple projects from initial enquiry through to final account, working closely with operational teams and clients to ensure works are delivered safely, efficiently and profitably. You will play a key role in maintaining and strengthening trusted client relationships while identifying opportunities for future work.

Key Responsibilities

  • Lead the commercial management of multiple projects from pre-construction through to final account.

  • Prepare cost plans, estimates, tender submissions, budgets and cash flow forecasts.

  • Procure and manage subcontractor and supplier packages, including tendering, negotiation and contract administration.

  • Monitor project performance, identifying and managing commercial risks and opportunities.

  • Produce accurate valuations, applications for payment, variations and final accounts.

  • Ensure robust cost control and reporting throughout the project lifecycle.

  • Work collaboratively with operational teams to provide commercial support and strategic advice.

  • Build and maintain strong relationships with clients, consultants, subcontractors and supply chain partners.

  • Support the identification, pricing and conversion of additional project opportunities within existing client portfolios.

  • Ensure contractual compliance and provide guidance on contract administration and dispute avoidance.

  • Mentor and support junior commercial team members where appropriate.

  • Contribute to the continuous improvement of commercial processes and best practice across the business.

About You

  • Proven experience operating as a Quantity Surveyor or Senior Quantity Surveyor within the construction sector.

  • Experience managing a diverse range of projects, including refurbishment, alterations, extensions and building improvement works.

  • Strong commercial acumen with a track record of successfully managing project costs, risks and profitability.

  • Excellent understanding of construction contracts and commercial management principles.

  • Comfortable managing multiple projects simultaneously within a fast-paced environment.

  • Skilled in subcontract procurement, negotiation and supply chain management.

  • Strong communication and relationship-building skills, with the ability to work collaboratively with clients and internal teams.

  • A proactive and solutions-focused approach, with the ability to identify opportunities and add value for clients.

  • Highly organised with strong attention to detail and excellent financial reporting skills.

  • Degree qualified in Quantity Surveying or a related discipline, with MRICS or working towards chartership desirable.

  • Experience of luxury property is beneficial.

How to Apply

If your skill set matches the above and the prospect of helping deliver some of the country’s finest projects appeals to you, please reach out by clicking Apply .

Your application will be processed by Size Group, and interviews will be conducted on a rolling basis as suitable candidates apply. We therefore encourage you to submit ASAP to avoid missing out!

Posted 2026-07-16

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