Velux loft conversion cost

Our comprehensive guide covers everything from planning and materials to labour and final touches, helping you budget effectively and make informed decisions.

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Before you get into the full article on Velux loft conversion costs, here are a few quick links to get you to where you need:

What is a Velux loft conversion?

A Velux loft conversion uses Velux roof windows to turn an underused loft into a bright, functional room.

Named after the trusted Velux brand, these conversions are popular for their easy installation, cost-effectiveness, and the natural light they bring into the space.

Velux loft conversion

Velux loft conversion costs in 2024

As of 2024, the total cost of a Velux loft conversion in the UK typically ranges from £20,100 to £48,900.

A Velux loft conversion is an excellent way to transform unused loft space into a functional and appealing part of your home. Here is the breakdown of the individual costs:

Cost Component Estimated Cost Range (£)
Initial Survey and Plans 500 - 1,500
Planning Permission 200 - 400
Building Regulations 400 - 800
Structural Work 10,000 - 20,000
Velux Windows (each) 500 - 1,200
Insulation and Plastering 3,000 - 6,000
Electrical Work 1,000 - 3,000
Plumbing (if needed) 1,000 - 3,000
Carpentry and Joinery 2,000 - 5,000
Flooring 1,000 - 3,000
Decoration 1,000 - 3,000
Contingency Fund 1,000 - 2,000

*Please note that these loft conversion costs are average estimates and can vary based on factors such as the loft's size, the project's complexity, the quality of materials used, and the region where you live.

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Velux loft conversion calculator

Our Velux loft conversion calculator helps you estimate your project's costs quickly and easily.

Enter your loft dimensions, choose your Velux window types, and add any extra features. You'll get a detailed cost breakdown tailored to your needs.

The tool simplifies planning, giving you a clear view of the financials and aiding your decision-making. Start planning your dream loft space today with our user-friendly calculator.

Estimated Cost: £0

*The Velux Loft Conversion Calculator provides cost estimates based on the details you enter, such as loft dimensions, window types, and additional features. These estimates are for guidance only, and actual costs may vary. The calculator is regularly updated to reflect current prices, but ongoing updates ensure the most accurate information. Please request a quote for precise quotes and tailored advice.

Cost of specific Velux window types

Choosing the right Velux window for your loft conversion is essential. Here’s a detailed look at various models, their features, and benefits:

Window Type Price Range Key Features Benefits
Centre-Pivot £400 - £1,000 Easy to operate, top control bar Affordable, versatile, excellent ventilation
Top-Hung £500 - £1,200 Opens outwards, suitable for various pitches Maximises daylight, ideal for low roof pitches
Integra® £600 - £1,400 Remote-controlled, rain sensors Convenient, smart home integration, energy-efficient
Cabrio® Balcony £2,000 - £3,500 Transforms into a balcony, double-sash Adds space and light, stunning views, increases property value

Key characteristics of a small Velux loft conversion

A small Velux loft conversion generally involves transforming a modest-sized loft space without extensive structural changes.

Here are some key characteristics of a small Velux loft conversion:

Size of the loft

  • Area: Usually under 20 square meters.
  • Suitability: Ideal for small bedrooms, home offices, or storage areas.

Number of Velux windows

  • Quantity: Typically includes 1 to 2 Velux windows.
  • Purpose: Provides adequate natural light and ventilation.

Structural changes

  • Design: Simple staircase installation, often using space-saving designs like spiral staircases or loft ladders.

Staircase installation

  • Work: Standard insulation and plastering to ensure the space is habitable and energy-efficient.

Electrical work

  • Installations: Basic electrical setups, such as a few power sockets and lighting fixtures.

Finishing touches

  • Details: Basic decoration and flooring, making the space functional and aesthetically pleasing.

What's the cost of a small Velux loft conversion?

Typically ranges from £15,000 to £25,000, depending on specific requirements and finishes.

*By keeping the project small-scale, homeowners can achieve a functional and aesthetically pleasing conversion without incurring the extensive costs and disruptions typical of larger projects.

Do you need planning permission for a Velux loft conversion?

In the UK, many Velux loft conversions fall under Permitted Development Rights, so you usually don't need planning permission. However, specific conditions and limits must be met. Here's a detailed overview:

Requirement Details
Volume Addition The additional roof space created by the loft conversion must not exceed 40 cubic meters for terraced houses. For detached and semi-detached houses, the limit is 50 cubic meters.
Height The extension must not exceed the height of the existing roof.
Roof Alterations No alterations are allowed to the roof that projects beyond the plane of the existing roof slope facing the highway, except for the Velux windows.
Materials Materials used for the conversion should be similar in appearance to the existing house.
Side-facing Windows Any side-facing windows must be obscure-glazed and non-opening unless the parts that can be opened are more than 1.7 meters above the floor of the room in which they are installed.
Roof Extensions Extensions must not overhang the outer face of the wall of the original house.

Situations requiring planning permission

You will need to apply for planning permission if your loft conversion plans do not meet the above criteria or if your property is located in certain areas:

  • Conservation Areas: If your property is in a designated conservation area, national park, or area of outstanding natural beauty, stricter rules apply.
  • Listed Buildings: Properties that are listed buildings will require planning permission for any loft conversion work.
  • Significant Changes: If the loft conversion involves significant alterations to the roof structure or the external appearance of the property, planning permission may be required.

Most Velux loft conversions do not require planning permission if they fall within the permitted development criteria.

However, it is always advisable to check with your local planning authority to confirm whether your specific project requires permission, especially if you are in a conservation area or have a listed building.

Ensuring compliance with building regulations is essential for any loft conversion to be safe and legally sound.

How long does a Velux loft conversion take?

The duration of a Velux loft conversion can vary depending on the size and complexity of the project. However, a typical Velux loft conversion usually takes between 4 to 6 weeks to complete.

Here is a detailed breakdown of the stages involved and the time they generally take:

Stage Description Estimated Timeframe
Initial Survey and Planning Conducting an initial survey to assess the feasibility of the conversion. Creating design plans and obtaining necessary approvals or certificates. 1-2 Weeks
Preparation and Structural Work Clearing the loft space and preparing the area for construction. Reinforcing floor joists and making any necessary structural changes. 1-2 Weeks
Window Installation Cutting roof openings and fitting Velux windows. Ensuring the windows are weatherproof and secure. 1 Week
Insulation and Plastering Installing insulation to meet building regulations and improve energy efficiency. Applying plasterboard and plaster to create a smooth finish. 1-2 Weeks
Electrical and Plumbing Work Installing wiring, sockets, and lighting. Adding any necessary plumbing for bathrooms or heating. 1 Week
Carpentry and Flooring Fitting stairs, doors, and any custom joinery work. Installing flooring materials such as carpets, laminate, or hardwood. 1 Week
Final Touches and Decoration Painting, decorating, and adding any final fixtures and fittings. Addressing any minor issues and ensuring the space is ready for use. 1 Week

Factors that can affect the timeline of your Velux conversion.

  • Complexity of the Design: More complex designs with additional features may extend the timeline.
  • Availability of Materials and Contractors: Delays in material delivery or contractor availability can impact the project duration.
  • Weather Conditions: Adverse weather conditions can cause delays, especially during the window installation stage.
  • Planning and Building Regulations: Delays in obtaining approvals or meeting building regulations can also affect the timeline.

How many Velux windows are in a “Velux” loft conversion?

The number of Velux windows in a loft conversion can vary based on the size of the loft, the amount of natural light desired, and the specific design preferences. Here are some typical scenarios:

Type of Loft Conversion Typical Uses Reasoning
Small Loft Conversion (1-2 Velux Windows) Small bedrooms, home offices, or storage areas. One or two windows provide sufficient natural light and ventilation for smaller spaces.
Medium Loft Conversion (2-4 Velux Windows) Larger bedrooms, playrooms, or multi-purpose rooms. Multiple windows ensure an even distribution of natural light and better ventilation across a moderately sized area.
Large Loft Conversion (4+ Velux Windows) Large master bedrooms, living areas, or multiple room divisions. More windows are needed to illuminate and ventilate a larger space effectively, often placed on multiple sides of the roof for maximum light exposure.

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