Guide to Converting your Loft in 2023

Loft Conversions are now becoming a popular option among homeowners that are looking to upgrade and spruce up their homes without breaking the bank. A loft conversion involves transforming an unused attic space into a functional living area in your home. This process includes adding necessary features such as stairs, windows, insulation, and electrical and plumbing systems to make the space inviting and livable. The purpose of a loft conversion is to increase the overall living space of a property and enhance its value. Loft conversions can vary in complexity and can range from simple storage spaces to fully finished rooms like bedrooms, bathrooms, home offices, or playrooms. Before pushing through with this undertaking, there are several things that should be laid out in order to fully understand the process and advantages of having a loft conversion done in your home.


A loft conversion provides numerous benefits to homeowners. Firstly, it increases the overall living space in the property, allowing for an additional room that is fully customizable. Typically, homeowners used to only convert their lofts into bedrooms or bathrooms, but over the years, people have gotten more creative with how they transform their space. Your loft can even become a music room or entertainment area! Surely, it will become a space that will address your needs and mirror your lifestyle. Secondly, a loft conversion is known to add value to the property, making it a cost-effective alternative to moving to a larger home. It increases the property’s square footage and value by 20%. Aside from adding value, a loft conversion can also improve the energy efficiency of the property, thanks to the inclusion of insulation and windows in the conversion process. The high level of customization offered by loft conversions allows homeowners to create a space that meets their specific needs and style preferences.


Before proceeding with a loft conversion, your home will be assessed on a number of things. First, it is important to figure out if you have enough room. While a loft conversion will not take away any outdoor space, your loft must be accessible. This will entail building a new stairwell and installing a new structure on the roof of your home. It is important that your home can accommodate not only a new stairwell that will be built, but access points for the construction itself. Secondly, it is important to check for any planning restrictions in your area. This will mostly apply to those who live in conserved or private areas. Typically, homes in these areas prove to be challenging to have a loft conversion done due to regulations set in the area. Lastly, one of the biggest factors that will determine if your home is suitable for a loft conversion is the main structure of your property, and more importantly, your roof. It is important that experts study and inspect the existing beams and structure of your home to check if it can handle the additional weight. In relation to this, the pitch and build of your roof will also be assessed to see how a new structure can be built.


A loft conversion is very versatile and can adjust to just about any build and style of home. It will surely match the proportions and measurements of your property to make it look like a seamless addition to your home. There are several types of loft conversions, each with different costs. The following are the most common types:

1. Roof light Conversion: This type of conversion involves adding skylights to the roof to bring in natural light. The estimated cost of this type of loft conversion ranges from £30,000 - £35,000.

2. Dormer Conversion: This type of conversion involves adding a new vertical extension to the roof, creating additional headroom and floor space. The most common type with different varieties like the side dormer or two-window dormer which can cost anywhere from £35,000 - £50,000.

3. Mansard Conversion: This type of conversion involves creating a flat roof extension, with the sides of the roof being built up to the maximum height allowed by planning regulations. This type of loft conversion can cost anywhere between £50,000 - £75,000

4. Hip to Gable Conversion: This type of conversion involves changing the shape of a sloping roof to a gable end, increasing the floor space. A Hip to Gable Loft Conversion typically costs around £35,000 - £45,000

To give you a better picture of what loft conversion can match your home type, here are a few examples of loft conversion styles that match different types of homes:

- Detached / Semi-Detached House: Double Dormers or an L Shaped Loft Conversion would utilize the space the best. This type of home will most likely need planning permission and party wall agreements. Aside from a Dormer, a Hip to Gable is also great for Detached houses with hipped roofs. Detached homes can also accommodate a Roof light or Mansard, but it’s best to have a dormer installed for space maximization.

- End of Terrace House: Since most Terraced homes have a hipped roof, it’s best to do a Hip to Gable on a Terraced home since it can be converted into a gable roof. It will give the best return on space. However, a roof light, dormer, and mansard are also suitable. It is important to note, for dormers specifically, that your space might be limited when you decide to have this built on a Terraced home.

- Mid Terrace House: A Mid Terrace House is great for a loft conversion. It pairs well with either a Dormer or Mansard, but cannot have a Hip to Gable loft conversion done.


Height Requirement

The minimum height requirement for a loft conversion is typically 2.2 meters (7 feet 2 inches) to stand up in the space. This is measured from the highest point of the floor to the ridge of the roof. If the height of the loft is less than 2.2 meters, it may still be possible to convert the space, but it will likely require raising your roof, if your building regulations permit you to do so, or lowering your ceiling to accommodate height space for your loft.

Insulation & Fire Safety

Fire safety features are important factors in a loft conversion. This ensures the safety of your loft before, during, and after the build. As a precaution, fire-resistant materials, like gypsum plasterboard for walls and ceilings, are recommended to be used to prevent the spread of fire. In addition to this, smoke detectors are a good option and a must to add to your loft, along with fire-rated doors and emergency lighting. Aside from that, fire-resistant glazing your windows are also an option that will help prevent the spread of fire. These are good measures to take and add to your loft for additional safety. Furthermore, insulation is also important as a start. This helps regulate the temperature in your room, which is essential. It can prevent your loft from catching smoke and fire, especially during hotter seasons. Full insulation is essential, which requires you to properly insulate your roof, walls, floor, and ceiling. There are several types of loft insulation, including:

- Mineral wool: This type of insulation is made from recycled glass or rock and is known for its excellent thermal and acoustic insulation properties.

- Fiberglass: This type of insulation is made from glass fibers and is commonly used in loft insulation due to its affordability and ease of installation.

- Foam: This type of insulation is made from polyurethane or polystyrene and provides excellent thermal insulation properties.

- Sheep's wool: This type of insulation is made from natural wool and is known for its high thermal and acoustic insulation properties, as well as being environmentally friendly.

Generally, the recommended depth of loft insulation is 270mm, but the exact depth required may vary based on the type of insulation used and local building regulations.

Party Wall Agreements

A Party Wall Agreement is necessary if the loft conversion project involves work on a shared or party wall that separates your property from your neighbor's. The party wall agreement details the terms and conditions of the works being done, including the proposed start and end dates, the scope of the work, and any specific requirements to protect the neighboring property. It also outlines the rights and duties of all parties involved, such as access to the property and compensation for any damages caused. To obtain a party wall agreement, you need to serve a party wall notice to the adjacent property owner and allow them time to respond. If a mutually acceptable agreement cannot be reached, a surveyor may be needed to resolve any disputes. It is important to note that Party Wall Agreements may involve local authorities. With this, rules and regulations regarding party wall agreements vary by region or area.


A loft is made possible with careful construction and placement of different elements to create a new space that is functional and practical. These include:

- Roof structure: The existing roof structure will be assessed to determine if it's suitable for conversion, and if necessary, reinforced to accommodate the additional weight and usage of the converted space.

- Staircase: A staircase is required to access the converted loft space, and it can be installed in a variety of styles to match the existing decor. A few common options are having a straight or spiral staircase installed to connect your loft to your home.

- Flooring: The flooring of the loft will be reinforced to ensure it can support the additional weight and usage, and finished with appropriate flooring materials such as carpet, hardwood, or laminate.

- Windows: Windows is usually installed in the roof to provide natural light and ventilation to the loft space. - Electrical and plumbing: Electrical and plumbing systems will be installed to provide power, lighting, and heating to the loft space, and to ensure it has an adequate water supply. This makes your loft fully functional and livable, rather than just mere storage or attic space.

- Insulation: Loft insulation is installed to ensure the converted space is energy-efficient and comfortable to use.

- Structural support: Structural support such as steel beams or rolled steel joists may be required to ensure the stability and safety of the conversion.

- Interior finishes: The interior of the loft will be finished with appropriate materials and fixtures, such as walls, ceilings, doors, and lighting fixtures, to match the existing decor and create a functional living space.