Greater Manchester

Extension (Stockport, Greater Manchester)

The structural calculations behind this project, prepared by our engineers for building control.

Extension (Stockport, Greater Manchester)

Project Overview

Location

Stockport, Greater Manchester

Project Type

Extension

Structural Services

Detailed Calculations

Compliance

Building Regulations

Elevating Space with a First Floor Extension in Stockport, Greater Manchester

With growing family needs and a desire to make better use of their footprint, this homeowner in Stockport wanted to add extra living space without compromising the ground floor layout. Their solution? A smart, floating first-floor extension above an existing single-storey structure.

Unlocking New Space Without Expanding the Footprint

The extension created a generous new bedroom and bathroom, while maintaining full access and light flow to the garden below. The design focused on:
✅ Minimal impact on the ground floor — no internal reconfiguration needed
✅ Careful support detailing to accommodate the ‘floating’ effect
✅ Sympathetic design to tie into the original building aesthetics
✅ Improved thermal performance and future-proofed use of space

Structural Engineering Behind the Build

To make the floating structure work safely and efficiently, PorthouseDean provided:
✔ Steel frame design and connection detailing — to carry loads over the open ground floor below
✔ Foundation checks and bearing wall assessments — to verify capacity for the additional storey
✔ Roof tie-ins and wind load analysis — to ensure long-term stability in exposed locations
✔ Clear documentation for Building Control approval — smooth and stress-free compliance

Designed for Flexible Modern Living

This thoughtful extension now provides:
🏡 Additional living space without sacrificing garden or ground floor rooms
☀️ Large windows and elevated views across the surrounding area
📐 A future-proofed layout that can serve as a bedroom, home office, or guest suite

Building Something Similar? Let’s Talk.

At PorthouseDean, we specialise in structural calculations for first-floor extensions, steel design, and modern home upgrades.

📍 Serving Stockport, Greater Manchester, and across the North West.

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 Quote

Structural Engineering Services We Offer

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Structural Calculations for Loft Conversions

Calculations for the floor, beams and roof changes a loft conversion needs.

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Structural Calculations for Wall Knock-Throughs

Beam and support calculations for taking out a wall.

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Structural Calculations for Extensions & New Builds

Calculations for foundations, walls, beams and roofs on extensions and new builds.

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Structural Calculations for Bi-Fold Doors & RSJs

Beam and padstone sizes for wide openings and bi-fold doors.

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Structural Drawings & Building Control Calculations

Complete documentation to help you achieve smooth Building Control approvals.