Garage Conversions in Walton-on-Thames.
With so much of Walton and Hersham's housing already extended, converting an attached or integral garage is a way to add a room without building again. Building work for a single garage typically lasts 3 to 5 weeks, rising to 5 to 8 weeks for a double garage or a structural conversion. Where a detached house in Ashley Park or Burwood Park has a double garage, it can become a gym, playroom or study, and where a Rydens bungalow has an attached garage, it can provide a ground-floor bedroom or utility room. The door opening is usually filled with a wall and window, and the floor raised and insulated to match the house.
Read our garage conversion cost guideRequest Your Free Cost Proposal
Tell us about your Walton-on-Thames project. We reply within 24 hours to arrange a free site visit, then send an itemised Cost Proposal.
Our focus in Walton-on-Thames.
A planning application is often unnecessary for the conversion itself, unless the house's original approval carried a condition removing permitted development rights or keeping the garage for parking. The planning history shows whether either applies. If permission is needed, the application must include the Elmbridge Design Code Checklist. In the conservation areas, cladding or rendering the new front would need permission, so it is usually built to match the house. Building regulations approval is always required, and Elmbridge Building Control Services provides it on the council's behalf; we manage that process for you.
As a design-and-build company we take on a limited number of projects at a time, so that every one gets the attention it deserves. If you are planning work on your Walton-on-Thames home, we would like to hear about it.
The Grand Standard
- 10% deposit, then weekly billing for completed work
- One team from design to completion
- Planning & building control managed for you
How far we are
4 miles
from our base in New Haw, measured in a straight line.
Planning in Walton-on-Thames
Homes in Walton-on-Thames fall under Elmbridge Borough Council (opens the council's website in a new tab). Its conservation areas here include Walton (Church Street/Bridge Street), Walton (Riverside), Hersham Village and Whiteley Village.
We confirm the route for your house (Permitted Development, prior approval or a planning application) before you commit.
Our nearest finished garage conversion
Building in Walton-on-Thames
Every service we offer in Walton-on-Thames, its planning authority and nearby towns, on one page.
More about building in Walton-on-ThamesLocal housing stock
bungalows and chalet-style houses · detached houses on half-acre plots · 1940s council-built houses · early to late 20th-century suburban homes
Also serving nearby
What we deliver in Walton-on-Thames.
- 01
Home Office
A quiet, properly insulated workspace away from the household, wired for power, data and good lighting.
- 02
Home Gym
A dedicated space for training at home, with hard-wearing flooring, ventilation and mirrors.
- 03
Cinema Room
A snug, blacked-out media room with the wiring, acoustics and lighting planned in from the start.
- 04
Playroom
A safe, warm room to keep toys and mess out of the main living space, and easy to repurpose later.
- 05
Self-Contained Annexe
A bedroom, shower room and kitchenette for guests, family or independent living.
- 06
Utility Room
Laundry, storage and services moved out of the kitchen to free up your main living areas.
Epsom Garage Conversion
The Challenge
Integrating the existing, lower-level garage slab with the main house floor level while ensuring maximum ceiling height for the new living space.
Our Solution
We engineered a stepped foundation and structural raised floor that perfectly matched the home's interior levels, creating an invisible, flush threshold between the original and new spaces.
Your questions, answered.
Your Cost Proposal
Measured first, then itemised.
Every Walton-on-Thames project begins with a free consultation and a fully itemised Cost Proposal. We take a 10% deposit three weeks before the start date, then bill weekly for completed, signed-off work.
Read our garage conversion cost guideTransform your Walton-on-Thames home.
Tell us about your Walton-on-Thames project and we'll arrange a free, no-obligation consultation, followed by a clear, itemised Cost Proposal, usually within 24 hours.
“Very helpful, proactive and competitive design/build quote. The initial video consultation was very useful, and Conor was very proactive in following up on my questions. The detailed cost breakdown was very helpful in understanding where I could perhaps reduce costs. If you are looking for a design and build company to discuss your project, I have no hesitation in recommending Conor and the Grand Innovations team.”