
Garden RoomsIn Epsom & Surrey
Create a separate space for work, hobbies or everyday retreat without losing sight of how your garden functions. Discuss a timber or masonry garden room with Matt at a free site visit, then agree the build and services required.
Fully insured · 12-month workmanship guarantee
Your home, properly planned
Garden Rooms for the way you live
Choose the use before the building shape
A garden room can provide a workspace away from the main house, a studio for creative work or a place for hobbies. The intended use determines much of the design: a desk-based office needs different daylight and power arrangements from a room for equipment or exercise. Start by describing what the room must accommodate and how often you expect to use it through the year, rather than selecting a standard size first.
Matt and his team build standalone timber and masonry studios and garden outbuildings. A free site visit allows discussion of location, access and the construction scope. Garden size alone does not establish suitability. Ground conditions, trees, boundaries, service routes and the relationship to the house need consideration. A room at the far end of the garden also needs a practical approach route in wet weather, not simply a clear view from the kitchen.
A complete outdoor building project
The structure, foundation, insulation, roof and utilities need to work together. Professional project management helps coordinate those elements before landscaping and interior finishes are completed. Matt and his team manage the agreed project end-to-end, including specialist trades and relevant building control inspections and sign-offs. The service is based on a project-specific brief; describing a garden room does not imply automatic permission for sleeping accommodation, a separate dwelling or commercial operation.
Before the work begins
The problems worth resolving early
Avoid a room that is uncomfortable or hard to reach
Insufficient thought about insulation, ventilation and glazing can leave a garden room cold in winter or uncomfortable in summer. A large glass frontage may suit the view but also affects privacy, glare and furniture position. Discuss the intended occupancy and orientation before settling window sizes. Heating a poorly considered envelope is not a substitute for planning the construction appropriately.
Water can collect around unsuitable ground levels or a poorly located base. Trees, slopes and access restrictions can also affect the build. Do not assume that every garden outbuilding is permitted development or exempt from building regulations. Its size, location, construction and use can change the requirements, and sleeping or independent accommodation introduces additional considerations. Electrical supplies must be assessed and installed by appropriate specialists; an improvised connection from the house is not a reliable solution.
From survey to handover
Our approach to your garden rooms project
01 · Free site visit and a practical brief
Discuss your aims with Matt and arrange a free, no-obligation site visit. The visit is used to understand the existing space, the work you are considering and the decisions that may need further investigation. It is not a promise that concealed conditions or every approval requirement can be settled immediately.
Describe the room's intended use, equipment, year-round occupancy and any need for water or a toilet. Share access constraints, known drainage problems and nearby trees. Consider where the room and a practical path could sit while preserving useful outdoor space and privacy.
02 · Assessment, design and an agreed scope
Establish the design information and specialist input required for your particular project before final construction decisions. Clarify any approval responsibilities, product supply and the work included in the quotation. Compare proposed options against your priorities and budget. If an item remains undecided, identify it clearly rather than assuming it is covered by a broad description of the service.
03 · Schedule, deposit and milestone payments
A schedule of works is issued with a payment plan, including an initial deposit and stage payments linked to the agreed work. Discuss access, deliveries, product decisions and essential facilities before the start. Where a change is needed, agree its effect on the scope, cost and programme before proceeding, so the shared plan remains clear.
04 · Managed construction and relevant checks
Matt and his team manage the agreed project from start to finish, coordinating specialist trades and building control inspections and sign-offs. The particular checks depend on the works and relevant requirements. Preparation, installation and verification should follow the agreed design and product specifications; important concealed details should be addressed at the appropriate stage rather than left until decoration is complete.
05 · Completion, handover and workmanship guarantee
Review the completed work against the agreed scope and discuss any points that require attention. Retain relevant product care information, certificates and inspection documentation applicable to the project. The build carries a 12-month workmanship guarantee, including certified specialist trade work. Ask about routine maintenance and how to raise a workmanship concern so the next step is clear after the team leaves.
Practical outcomes
What a considered project gives you
Separation without leaving your property
A dedicated room can create a clearer boundary between working and home life or keep hobby equipment out of shared rooms. The benefit depends on a layout that fits the actual activity. Allow space for chairs, storage and moving around equipment, not just the main desk or workbench shown on a sketch.
Construction suited to the site
Considering timber and masonry options alongside access, foundation requirements and maintenance helps avoid choosing on external appearance alone. An agreed project brief makes the roof, openings, insulation and services part of one coordinated decision. Matt and his team manage the build and specialist trades rather than leaving each interface for the homeowner to organise.
An outdoor space that still works as a garden
A room should leave useful access, drainage and a sensible amount of outdoor space. Integrating paths and landscaping can make the new building easier to use without unnecessarily dividing the garden. The agreed workmanship carries a 12-month guarantee; maintenance of external finishes, gutters and surrounding planting remains important after handover.
Materials, methods & decisions
Planning the details of your garden rooms
Timber and masonry construction
Timber and masonry garden buildings have different structural, detailing and maintenance considerations. Timber systems need suitable protection and weathering details, while masonry construction requires its own foundation and wall specification. The choice should reflect the site, proposed use, appearance and ongoing care. Discuss material options rather than assuming that the lighter-looking building necessarily needs less preparation or fewer approvals.
The roof shape affects drainage, internal height and how the room sits within the garden. External cladding or other finishes should be considered alongside moisture management and insulation. Openings need coordinated supports, thresholds and weatherproof junctions. Product instructions and a project-specific specification guide those decisions; no single standard wall or roof build-up can be assumed suitable for every property.
Bases, access and utility routes
The base and foundation need assessment of ground conditions, nearby trees and the loads of the proposed building. Level differences and surface water should be understood before construction. Access affects how materials reach the site, where they can be stored and how surrounding planting or paving is protected. A narrow side passage can influence logistics even when the intended garden room footprint is generous.
Power, lighting and any data connection should be planned around the room's use and an appropriate assessment of the supply. Adding water or drainage changes the scope and may influence the building's position. Service trenches, pathways and final landscaping should be coordinated to avoid disturbing completed work unnecessarily. Tell Matt about any proposed toilet, sink or shower at the beginning rather than adding it after the building location is fixed.
Offices, studios and more intensive uses
A home office needs useful light, ventilation and heating, while a studio may need storage, controlled light or particular equipment space. Exercise or music uses can introduce load, noise and acoustic questions that deserve specific assessment. Commercial use, customer visits or sleeping accommodation should be disclosed early because the obligations can differ from a simple domestic hobby room. The suitability of any intended use must be established through the relevant design and approval process.
Connected building services
Epsom and surrounding service areas
Questions before you start
How much do garden rooms cost in Epsom?
Building size, timber or masonry specification, foundation needs, access, insulation, glazing, internal finishes and utility routes affect cost. A room with plumbing has a different scope from a simple studio. Landscaping and path work should be identified as included or separate. We do not publish a fixed price for an unseen property. Start with a free, no-obligation site visit and quotation so the proposed work, inclusions and outstanding decisions are clear before you commit.
How long will my garden rooms project take?
Site preparation, design and approval checks, material lead times, ground conditions and service installation influence the schedule. Restricted access can change delivery arrangements, and weather may affect ground work and external construction stages. Matt and his team issue a schedule of works for the agreed project. Discuss your preferred dates and any essential deadlines, but do not rely on a generic duration before the design, scope and relevant dependencies have been established.
What should I prepare for the free site visit?
Describe the room's intended use, equipment, year-round occupancy and any need for water or a toilet. Share access constraints, known drainage problems and nearby trees. Consider where the room and a practical path could sit while preserving useful outdoor space and privacy. The visit and quotation are free and carry no obligation to proceed. If you already have a designer or another professional involved, mention that so the available information and next decisions can be discussed together.
Will I need planning permission or building control?
Requirements depend on your property, the proposed works and any applicable site constraints. Planning permission and building regulations are separate matters; one does not replace the other. Check the route for your particular scheme with the relevant authority and advisers. Matt and his team coordinate building control inspections and sign-offs as part of managing the agreed project.
Who manages the work and specialist trades?
Matt and his team manage the project from start to finish, coordinating the agreed construction and specialist trades. Kitchen and bathroom projects involve specialist designers. Clarify the scope and any separate professional appointments before work starts, so responsibility for design, supply, installation and relevant approvals is understood rather than assumed.
What guarantee is included, and are you insured?
Matt Brash Builders Ltd is fully insured. The build carries a 12-month workmanship guarantee, including work completed by certified specialist trades. This is a workmanship commitment, not an unlimited product lifespan or a substitute for routine maintenance. Retain your project information and ask Matt how to raise a concern about the completed work.
How long should the results of garden rooms last?
The construction system, weatherproof details and ongoing care determine performance. Timber finishes, roof drainage and glazing need maintenance according to the chosen products. Keep vegetation and water management under review; no garden room has a universal promised service life. Discuss the selected materials and care requirements during the project. The useful life of a construction element, fitting or finish depends on its specification, exposure and use, so we do not promise an unsupported number of years for the whole service.
Do you provide emergency or same-day work?
We focus on planned building work rather than emergency call-outs. Our hours are Monday–Friday, 8am–6pm. Call Matt to discuss planned work and current availability. If there is an immediate risk to people or the building, seek the appropriate urgent assistance rather than treating a future site visit as an emergency response.
Do you carry out garden rooms outside Epsom?
Matt Brash Builders Ltd is based in Epsom and also covers Ewell, Ashtead, Leatherhead, Chessington, Kingston upon Thames, Sutton, Cobham and Guildford. Discuss the property location and access when you call. The quotation and programme are based on the individual project rather than assuming every home in an area has the same building conditions.
How do I take the next step and agree payments?
Use the online enquiry form or call 07449 907407 to discuss a free site visit. Share your project outline and location so the next step can be discussed. Once the project is agreed, a schedule of works and payment plan sets out the initial deposit and milestone payments linked to the agreed work.

Free site visit & quotation
Make your garden rooms plans a clear next step
Talk to Matt about your plans. We offer free, no-obligation site visits and quotations, with one team managing your project from start to finish.
Fully insured · 12-month workmanship guarantee
Mon–Fri 8am–6pm
