Principal Contractor · Design & Build · Since 2019
We deliver new builds, extensions, refurbishments and fit-outs for retail, commercial, education, healthcare and industrial clients across London, the South East and England, often while customers, staff and pupils carry on around us.
Trusted by clients and consultants including
£0.5–6m
Typical project value, design & build or traditional
100%
Achilles UVDB Verify B2 audit score in all eight modules
98%
Average client satisfaction across 14 surveys since 2024
99.2%
Construction waste diverted from landfill, 2026 to date
SB Construction (Design & Build) was set up in 2019 and is led by its three directors, Brendan O’Sullivan, Scott Appleford and Will Harvey. From our head office in Northfleet, Kent, we work as Principal Contractor and design and build contractor across London, the Home Counties, the South East and the East of England, and across England on larger schemes.
Most of our work happens in buildings that stay open: trading food stores, shopping centres, nurseries and offices. We plan every phase around the people who use them.
Our mission
To lead the commercial and retail construction industry by continually elevating the calibre of our work.
We aim to enhance client value through innovation, vision, unwavering integrity and a relentless commitment to excellence.
01
Most of our work is in buildings that stay open. Phasing, segregation and out-of-hours working are planned in from day one, not added later.
02
100% in all eight Achilles UVDB Verify B2 management-system and site audit modules, with an external H&S auditor and our own SHEQ Manager.
03
A named project manager and site manager for the whole job, with a director overseeing it.
04
We read the Employer’s Requirements properly. Gaps are raised as RFIs or priced as provisional sums, not hidden as exclusions.
05
Drawings, RFIs, inspections, snags and handover records sit on Procore, so clients see progress as it happens.
06
Fair Payment Code awardee: 95% of UK invoices paid within 60 days. Subcontractors are pre-qualified on safety, insurance and ethics.
07
Practical alternatives proposed early, so cost comes down without losing the performance the building needs.
08
Our Senior Design Manager coordinates the design team and specialist designers, so buildability and cost are tested before work starts on site.
09
Your project manager speaks to you and your stakeholders every day, including store or school staff, consultants and neighbours. Issues get raised as they come up, not saved for the next progress meeting.
Retail
Flagship store, first full CO₂ refrigeration system, 10 weeks.
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Hospitality
Extension next to a venue that stayed open for 18 weeks.
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Education
Squash court to art studio in a live boarding school.
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Education
Listed building transformed into a modern nursery.
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Healthcare
Vacant offices to a 24-hour veterinary hospital in 13 weeks.
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Residential refurbishment
Two penthouses combined under a High-Risk Building approval.
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Design and build, refurbishment, fit-out, structural and enabling works, extensions and pre-construction, run digitally on Procore so you can see progress as it happens.
We’re happy to meet early, before the tender, to understand your programme and constraints.