South East & East England - 0208 183 4321
South West, Wales & Midlands - 01452 346 156
North England & Scotland - 0161 820 3230
Structural calculations from ground to ridge — foundations, structural frame, wind bracing, floor and roof structure. Everything Building Control needs, by one dedicated engineer.
Every job runs through the same process, so every customer gets the same three answers.
Tell us about the project and we’ll tell you the price and the steps that follow. No hourly rate. If the job changes, there is a free change request on every job.
Pick how fast you need it, and pay less if you can wait. You get a date to work back from.
Never wonder where it’s up to — just look. Your project hub shows what is happening now, what is next and anything we need from you, with your drawings, documents and invoice alongside. Share it directly with everyone involved in your project.
Our structural engineering design for new builds service is built from the ground up to ensure that what can often end up an arduous and highly stressful process, can continue on as smoothly and as simply as possible.
On a new build project, our structural engineers will be on hand to offer their support, expertise, and unique perspective. Key benefits of instructing a PorthouseDean structural engineer include:

Everything Building Control needs to approve your project first time.
We don't strip things out to make the headline price look cheaper. This is the full package, every time.
Full structural calculations
Beam specs, column calculations, foundation details, load assessments — everything your project needs.
Building Control documents
Submission-ready, and 100% approved by building control: if yours aren't, you get a refund. Your engineer handles any queries from BC directly.
Contractor pack
Clear drawings and instructions to build from on site. Dimensions, connections and installation notes included.
A free change request
Building Control changes, contractor modifications, design adjustments — the first change is on us, and further changes cost less than a new quote.
£500,000 PI insurance
Professional indemnity cover on everything we produce.
Ground conditions check
Site-specific ground assessment integrated into the foundation design. Helps avoid unexpected foundation costs.
Virtual site visit
Included with every project. Your engineer guides you through capturing measurements and photos via video call.
Dedicated engineer
One person who knows your project. Not a different voice every time — same engineer from quote to Building Control.
Pay by card, bank transfer, or Klarna — split into 3 interest-free payments. See the full process →
From quote to delivery, the same process every time. No surprises.
Tell us about your new build project. For complex schemes, submit the drawings you have for a tailored price. Every quote is reviewed by an engineer before it's confirmed. Quote stays live — no pressure to proceed immediately.
One dedicated structural engineer from foundation design to roof structure. They confirm scope, complete a virtual site visit (included), and become your single point of contact — including site queries that arise during the build.
Foundation design, structural frame, floor and roof calculations on the date you choose — everything Building Control needs in one pack. Your engineer handles BC queries and stays available for site questions. A free change request is included.
A delivery date you choose. 100% building control approval, or a refund. Dedicated engineer throughout. See how it works →
A clear price and a delivery date you choose. One dedicated engineer from foundation to roof.