Structural engineering, humanly delivered
Marlow & Finch — Engineering Design Consultancy
We’re a London-based engineering practice turning complex structural challenges into elegant, buildable designs. From loft conversions to historic courthouses — we make the difficult look effortless. And we make sure it stands for a century.
Trusted by 180+ architects and homeowners across London & the South East.
Our Approach
How we engineer confidence
Three principles guide every drawing, every site visit, and every conversation — from first sketch to final sign-off.
Precision
We deliver calculations and drawings to the millimetre. Our QA process catches issues before they reach site — so you never pay for a mistake in steel or a misplaced footing.
Innovation
Not every problem needs a concrete solution. We apply modern timber, steel and composite techniques to unlock designs that traditional approaches can’t support — competitively priced, and lighter on the planet.
Collaboration
We treat architects, contractors and clients as partners — not just recipients of drawings. Regular site visits and honest progress updates mean there’s never a surprise at a critical stage.
What we do
Engineering services, end to end
From a single-storey rear extension to a Grade II-listed townhouse, we provide the structural expertise your project needs to move forward with confidence.
Residential Design
Extensions, loft conversions, internal alterations and new builds — all engineered to fit your space, budget and lifestyle.
Commercial Design
Offices, retail fit-outs, industrial units. We deliver practical structural packages that keep your programme on schedule.
Specialist Design
Temporary works, steel frames for glass extensions, and bespoke connections others shy away from.
Consultation & Reporting
Condition surveys, feasibility reports and expert advice for planning, purchasing or dispute resolution.
Selected work
Projects that speak for themselves
A snapshot of recent commissions across Greater London and the Home Counties. Click through to read the full engineering story.
Residential
Clapham Backland Extension
A three-storey rear addition to a Victorian terrace, using a slim steel frame to keep sightlines open and floorplates generous.
Completed — 2023, 14-week programme
Commercial
Farringdon Office Refurb
Structural alterations for a new open-plan workspace, removing two load-bearing walls and inserting a flush timber floor system.
Completed — 2024, BREEAM Excellent
Heritage
Grade II Listed Barn Survey
Full structural condition survey of a 17th-century timber barn, with specification for discreet re-pointing and oak splice repairs.
Completed — 2022, Listed building consent
Public building
Civic Centre Façade Component
Animated engineering model of a precast concrete panel for a new civic centre, tested for wind loads and thermal movement.
Design stage — 2024, 3D analysis
Client stories
Trusted by architects, builders and homeowners
“Marlow & Finch were the calmest people on our project. They spotted a deflection issue on the steel beam design two weeks before it would have hit site — saved us £18,000 and a four-week delay. I won’t spec another structural engineer.”
James Whitmore
Director, Whitmore & Black Architects
Good to know
Frequently asked questions
Get in touch
Let’s talk about your project
We offer a free 20-minute phone consultation for all new enquiries. Tell us about your building, your goals, and your timeline — we’ll let you know straight away if we’re the right fit.
Send us a message
We reply within 1 business day.