Here's what will influence the price of building your timber outbuilding:
Size: This is a primary factor. To accommodate 4 desks and a director's round table, you'll need a decent amount of space. The larger the footprint, the more materials and labor are required.
Design Complexity: A simple rectangular structure will be cheaper than a more complex design with angles, curves, or multiple rooms.
Materials:
Timber: The type and quality of timber will affect the price. Softwoods are generally cheaper than hardwoods.
Insulation: If you plan to use the outbuilding year-round, insulation is crucial and will add to the cost.
Windows and Doors: The number, size, and type (e.g., standard, bi-fold) will impact the price.
Roofing: Different roofing materials (e.g., felt, shingles, tiles) have varying costs.
Flooring: The type of flooring (e.g., laminate, wood, carpet) will influence the overall cost.
Foundations: A solid foundation is essential. The type (e.g., concrete slab, footings) will depend on the size and ground conditions and will affect the cost.
Electrics: If you need power for lighting, computers, and other equipment, you'll need electrical installation, which will add to the cost.
Plumbing: If you plan to include a sink or toilet, plumbing will be necessary and will increase the price.
Labor Costs: Labor costs vary depending on your location and the complexity of the project.
Finishes: Interior and exterior finishes (e.g., painting, cladding) will add to the overall cost.
Planning Permission: In some cases, you may need planning permission, which can involve additional costs.
To give you a rough estimate, let's consider a few scenarios:
Scenario 1: Basic Timber Structure
A simple, well-insulated timber structure on a concrete base.
Includes basic electrics, standard windows and doors, and functional flooring.
Assumes a floor area sufficient for your needs, say, 20-25 square meters.
Estimated cost: £10,000 - £20,000
Scenario 2: Higher-End Finish
A more architecturally designed timber outbuilding with high-quality materials.
Includes enhanced insulation, premium windows and doors (e.g., bi-fold), and a more refined interior finish.
Estimated cost: £20,000 - £35,000+
Important Notes:
These are rough estimates. It's essential to get quotes from local builders or outbuilding specialists for a more accurate cost.
Factor in potential additional costs, such as site preparation, access issues, and any unforeseen problems.
Consider the long-term value of the outbuilding and invest in quality materials and construction.