
House Extensions in Plymouth, Devon & Cornwall
We build high-quality house extensions across Plymouth, Devon and Cornwall, creating more space, light and comfort for modern family living.
Your Local Extension Specialists
As trusted extension builders in Plymouth, we understand local planning, property styles and the unique challenges that come with building in the South West. Whether it’s a rear extension, side extension or a full wrap-around build. We make the process simple with clear communication and honest pricing from the start.
Our team handles everything from groundwork and steels to finishing, flooring and lighting. So you don’t have to juggle different trades.
If you’re looking to add more space, light and comfort to your home. A well-planned extension can make all the difference. At Hobbs Home Building Co., we specialise in building high-quality extensions across Plymouth, Devon and Cornwall, creating practical, modern spaces that genuinely improve everyday living.
We’re local builders with years of experience designing and delivering extensions that feel like a natural part of your home — not an add-on.

Top rated Devon company

Types of House Extensions We Build
Rear Extensions
Perfect for opening up your kitchen and dining space, adding more room for family life and creating a better flow to the garden.
Side Extensions / Side Returns
Ideal for properties with unused side space, creating extra width for kitchens, utility rooms or living areas.
Wrap-Around Extensions
A full transformation that connects the rear and side of your home, providing maximum space and flexibility for modern layouts.
Single-Storey Extensions
Great for expanding downstairs living, adding open-plan space or creating a new family room.
Two-Storey Extensions
Add upstairs bedrooms, bathrooms or office space while improving downstairs layout at the same time.



How We Work
Our process is simple, clear and designed to take the stress out of extending your home. We keep you informed at every stage and handle all the practical work, so your extension in Plymouth or the surrounding area, runs smoothly from start to finish.

INITiAL CONSULTATION
We start with a friendly conversation and a visit to your home in Plymouth, Devon or Cornwall. We look at the space, discuss ideas, and understand what you want from your extension.

Clear Quote & Plan
You’ll receive a detailed, transparent quote with no hidden extras. We outline timelines, stages of work and what you can expect throughout the build.

Preparation & Build
Once everything is agreed, we get the site ready and begin the build. Our team handles all of the work — groundwork, steels, brickwork, roofing, electrics, plumbing and finishing — keeping you updated at every step.

Finish & Aftercare
When your new space is complete, we walk you through the final result, check every detail and make sure you’re happy. We stay in touch afterwards to ensure everything feels right once you’ve settled in.

