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With plenty of green, open spaces, and trendy cafes, Nunhead offers its residents the perfect blend of quiet country life with the perks of being close to the city. It is therefore no surprise that most families choose to expand their homes rather than incur the cost and inconvenience of moving houses when faced with a lack of living space.

Loft conversions allow homeowners to create unique spaces within their homes that cater to their specific needs and lifestyles, all while adding incredible value to their property (and without infringing on their garden area!).

A loft conversion is essentially a means of transforming the awkward and often ill-utilised loft corners of your home into comfortable, spacious, and stylish rooms. These may be used to create extra bedrooms, bathrooms, or even study nooks, giving rise to numerous possibilities and incredible functional space.

Loft conversions are generally categorised into different types based on the amount of structural change involved. Some of the most popular loft conversion styles in Nunhead include:

Velux loft conversion

The rooflight or Velux loft conversion may be used to create virtually any type of room, from a quiet library or study nook to a private and well-lit bathroom.

This is easily the simplest style of loft conversion, which is both minimally disruptive and extremely cost-effective. The simplicity and uncomplicated design of a skylight loft conversion make it possible to construct it without requiring planning permission.

It involves the installation of rooflights (or skylights) into the pitch of the existing roof without making other major structural changes to the roof. However, since there is no extension of the roof taking place, it is imperative that there already be sufficient head height available.

Dormer extension

Dormer extensions are increasingly viewed as a balanced option for a loft conversion, in that they help create more headroom and floor space than a roof light conversion but are cheaper and less complex to construct when compared to a mansard.

The dormer roof extension involves vertically extending the existing roof to create a flat-roofed or pitched-roof dormer. The choice of style is largely based on the aesthetic created, while the installation of dormer windows further enhances the space and brightens the room.

Dormer extensions are suitable for almost any type of home and are particularly popular in semi-detached properties that have a sloping roof. And though they may require planning permission, dormer loft extensions allow for the design and creation of beautiful, bright, and airy rooms.

L-shaped Dormer extension

Essentially a larger and more spacious version of the rear dormer extension, the L-shaped extension results from the combination of two dormers that are connected together.

These are more suited to Victorian and Edwardian properties that may already have a rear extension and help create a great deal of added space, perfect for designing extra bedrooms, en-suites, or home offices.

These dormers do not always require planning permission if they fall under permitted developments, but it is always best to check before initiating the build.

L-shaped dormer extensions may cost between £30,000 and £60,000, but they are an excellent investment as they allow for the creation of multiple additional rooms.

Double Mansard

Particularly suited to period properties, including terraced, detached, and semi-detached homes, a double mansard is the largest and most extensive type of loft conversion.

It involves creating a mansard roof by altering the slope of the roof to an angle of 72 degrees at the front and rear of the house, essentially creating a new story. And though this invariably requires planning permission and is expensive to construct, these extensions have a dramatic effect on the space within.

With the extensive space made available, a double mansard may be used to create multiple rooms, including one or two bedrooms and en-suites. All of which have a significant impact on the overall value of the property.

Hipped roof extension

Detached and semi-detached properties that feature a sloping roof are ideally suited for hipped roof loft conversions.

As this type of extension involves considerable structural work, including transforming the slope of the roof into a vertical wall, it is one of the more expensive types of loft conversions (costing upwards of £40,000) and generally requires planning permission.

Hipped roof extensions, however, add a great deal of living space, are visually appealing, and add incredible value to the property. Therefore, they are considered to be well worth the initial investment.

A loft conversion in Nunhead typically ranges in cost from £40,000 to £125,000.

This is because the cost of a loft conversion is dependent on a large number of factors, such as the design and dimensions of the conversion, the amount of structural work involved, and the fittings and insulation that need to be installed.

However, as most loft conversions increase the value of a property by up to 20%, the cost of a loft conversion is largely made up by the value that it adds to the property.

 

Though they seem to be relatively uncomplicated builds, loft conversions require the consideration of numerous factors and practicalities, all of which must align to create your ideal new space.

Therefore, having a team of experts by your side should be viewed as a requirement, not an extravagance. In fact, the ideal team could help you to:

  • Design the perfect loft conversion 
  • Secure the requisite approvals 
  • Source building materials
  • Oversee the build (including technical work and installations)
  • Avoid common errors and design flaws

Basically, an experienced team can not only help you to optimise the potential of the design and space and prevent mistakes that could prove costly in the long run, but they can also ensure that the loft conversion meets (and exceeds) your expectations.

Creating the perfect loft conversion is easy when you have the right professional help and expertise. But more than that, it becomes a seamless process when your conversion specialists help you create customised loft conversions that are specific to your needs and requirements.

This is why Good Design and Build are the foremost loft conversion specialists in the UK.

With decades of experience and unmatched expertise, the incredible team at Good Design and Build creates stunning loft conversions that are an indelible testament to their skill and creativity.

Our team ensures that every step of the conversion process is managed and overseen, leaving homeowners with the envious task of simply enjoying the beautifully constructed new space, hassle-free.

The cost of a loft conversion is dependent on a number of variables, including:

  • The design/ complexity of the loft conversion
  • The size of the conversion
  • Location
  • Structural work involved
  • Insulation
  • Building materials
  • Fittings and fixtures
  • Specialists’ fees, etc.

As such, the cost of loft conversions can range from £20,000 to £125,000.

Fortunately, Good Design and Build offers free consultations and quotations for proposed loft conversion projects. This allows homeowners to create their ideal conversions within their ideal budgets.

Loft conversions can usually be constructed without the need for planning permission. However, this depends on the complexity of the conversion.

For a loft conversion to fall under permitted developments, it must meet specific limitations regarding its size, design, and structural alterations, the type of property on which the conversion is constructed, and where the property is listed.

For example, a loft conversion that features a balcony or a conversion that is done on a property that is listed in a conservation area will require planning permission.

Even those conversions that do not require planning permission will, however, require building regulations approval or even party wall agreements (particularly for terraced properties). This ensures that the building complies with standard building guidelines and protocols.

A better question would be, What is not?

This is because our incredible team comprises surveyors, architects, builders, technicians, and project managers. This allows Good Design and Build to provide complete project management of the entire loft conversion process from start to finish. This includes:

  • Primary survey of the location
  • Architectural design of the loft conversion
  • Coordinating with the local council
  • Daily on-site management of the build
  • Contractual work

And everything in between.

This ensures that you can create the ultimate loft conversion that adds space, comfort, and value to your home and life.

How we deliver projects

Our process is simple and divided into two distinct phases with separate contracts: Design and Build. As a client you only commit to one phase at a time depending on what stage of the process you are in. Each phase consists of three stages as described below.

1. Design

This is the kick-off point for your project. We carry out a complete architectural measured survey of the property. This allows us to create accurate CAD design drawings. This is followed by a design meeting to start discussing your ideas in more detail.

2. Planning

At this stage we finalise the designs with you and start preparing planning applications as needed. We place a high priority on ensuring that plans, designs and schedules are all based on a thorough and detailed understanding of planning guidelines. We co-ordinate with local authorities until the decision is made, and the planning approval is secured.

3. Technical

Once the planning consent is secured, we translate the design drawings into more detailed technical drawings for the purposes of building control and construction. This also includes specifications and structural calculations. At this stage, we will also submit to you our ‘no obligation’ quote for the build phase.

4. Pre-build

90% of our clients decide to stick with us after the design phase is completed. Once the build contract is signed, we kick off the process by making sure all the pre-build processes are complete. These include assistance with party wall agreements, Thames Water build over agreement, submitting building control application, and preparing method statements etc as needed. This stage ends with a pre-start meeting with your foreman before the actual build begins.

5. Build

One of our foremen will be dedicated to your project and will be on-site to manage everyday works. Our project managers will be overseeing the works to make sure they are completed to high standards, within your budget and on time. Throughout the process we will keep you updated with the progress and coordinate the works with third parties such as kitchen or flooring suppliers. We will also advise and guide you to choose any suppliers if needed.

6. Handover

As the build draws to finish, we will help to iron out any ‘snags’ to make sure everything is completed to your satisfaction. We will put together all necessary certificates such as gas, electricity and building control completion along with warranties for glazing, boiler etc. At the final completion meeting, we will hand you these documents, together with the keys to your house. Needless to say, you can contact us any time after this, if you want us to look at something.


This is the kick-off point for your project. We carry out a complete architectural measured survey of the property. This allows us to create accurate CAD design drawings. This is followed by a design meeting to start discussing your ideas in more detail.

At this stage we finalise the designs with you and start preparing planning applications as needed. We place a high priority on ensuring that plans, designs and schedules are all based on a thorough and detailed understanding of planning guidelines. We co-ordinate with local authorities until the decision is made, and the planning approval is secured.

Once the planning consent is secured, we translate the design drawings into more detailed technical drawings for the purposes of building control and construction. This also includes specifications and structural calculations. At this stage, we will also submit to you our ‘no obligation’ quote for the build phase.

90% of our clients decide to stick with us after the design phase is completed. Once the build contract is signed, we kick off the process by making sure all the pre-build processes are complete. These include assistance with party wall agreements, Thames Water build over agreement, submitting building control application, and preparing method statements etc as needed. This stage ends with a pre-start meeting with your foreman before the actual build begins.

One of our foremen will be dedicated to your project and will be on-site to manage everyday works. Our project managers will be overseeing the works to make sure they are completed to high standards, within your budget and on time. Throughout the process we will keep you updated with the progress and coordinate the works with third parties such as kitchen or flooring suppliers. We will also advise and guide you to choose any suppliers if needed.

As the build draws to finish, we will help to iron out any ‘snags’ to make sure everything is completed to your satisfaction. We will put together all necessary certificates such as gas, electricity and building control completion along with warranties for glazing, boiler etc. At the final completion meeting, we will hand you these documents, together with the keys to your house. Needless to say, you can contact us any time after this, if you want us to look at something.

What Our Clients Say

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Let's get started with building your own bespoke quote for your dream extension. Tell us as much in detail as possible to get most accurate price.

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Build a Quote!

Let's get started with building your own bespoke quote for your dream extension. Tell us as much in detail as possible to get most accurate price.

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