Extension (Ashford, Kent)
The structural calculations behind this project, prepared by our engineers for building control.
Project Overview
Location
Ashford, Kent
Project Type
Extension
Structural Services
Detailed Calculations
Compliance
Building Regulations
House Extension – Ashford, Kent
Transforming this family home in Ashford, the owners wanted to create more space, a modern layout, and a sleek exterior finish. By adding a two-storey side extension and a rear extension, they maximised both indoor living space and outdoor accessibility. To complete the transformation, a drop kerb installation improved practicality, while a full external render finish gave the property a fresh, contemporary look.
Working alongside Fluent Architects, PorthouseDean provided the structural calculations needed to support these major modifications, ensuring everything was safe, efficient, and fully compliant with Building Control.
Expanding & Modernising the Home
The homeowners wanted to:
✅ Increase living space with a two-storey side extension
✅ Enhance the ground floor with a spacious rear extension
✅ Improve accessibility with a new drop kerb for easier parking
✅ Update the exterior with a modern render finish
What we did
Our role included:
✔ Structural calculations for the side & rear extensions – Ensuring the home could support the additional loads
✔ RSJ & steel beam design – Enabling open-plan areas and large structural openings
✔ Foundation assessment – Ensuring stability for the extended footprint
✔ Load-bearing wall modifications – Creating seamless transitions between the new and existing structure
Thanks to precise engineering, this project has completely transformed the home, creating a spacious, stylish, and highly functional living environment.
Planning an Extension? Let’s Make It Happen!
At PorthouseDean, we provide expert structural calculations for home extensions, RSJs, and open-plan renovations.
📍 Providing structural engineering across Ashford, Maidstone, and Kent.
Why Extend Your Home?
More Space, More Possibilities
Create an open-plan kitchen, a family hub, or a bright entertaining space.
A Date You Can Plan Around
You choose the delivery date, and the price follows the date.
More Natural Light
A wider opening to the garden needs a beam sized for the load above it. The calculations set that size.
Personalised Design
Every house is built differently. The calculations work from your drawings and the structure you already have.
How PorthouseDean Supports Your Project
Every project is different, but the need for precise, reliable structural calculations remains the same. Our engineers work with:
Homeowners
Ensuring designs are safe, cost-effective, and practical.
Architects
Providing calculations that allow for creative yet compliant designs.
Builders
Making sure construction runs smoothly with clear, reliable specifications.
Planning Your Own Project?
More than 9,000 projects since 2012 have run through the same process. You get a fixed price before you commit, and you choose the delivery date.
📩 Get a QuoteStructural Engineering Services We Offer
Structural Calculations for Loft Conversions
Calculations for the floor, beams and roof changes a loft conversion needs.
Structural Calculations for Wall Knock-Throughs
Beam and support calculations for taking out a wall.
Structural Calculations for Extensions & New Builds
Calculations for foundations, walls, beams and roofs on extensions and new builds.
Structural Calculations for Bi-Fold Doors & RSJs
Beam and padstone sizes for wide openings and bi-fold doors.
Structural Drawings & Building Control Calculations
Complete documentation to help you achieve smooth Building Control approvals.