Bespoke Design & Planning

Over 12 Years of Experience

Free Consultation & Itemised Quotes

Full Cost Transparency & Project Management

Insurance Backed Warranty

Teeing off on a fine day and tea at Severndroog Castle, life in West Heath has tranquil surroundings for those who love peace in their neighbourhood. Beautiful green spaces are a strolling distance away, although positioned for well-connected travel links to Central London. The nearby Hampstead Village offers a vibrant cultural scene, with art galleries, boutique shops, and dining options. West Heath is also within reach of excellent schools, making it an appealing choice for families. Loft Conversions West Heath offers staying power with extra living spaces that make life truly comfortable. We specialise in Victorian and 1930s home remodelling to create stylish and modern loft spaces that optimise space in your home.

When looking to solve space constraints for your growing family or changing lifestyle, look to the loft. There is prime floor space hidden in the roof. A loft conversion turns this underutilised space into a living area. The process involves structural alterations to the roof, insulation, adding windows or skylights, installing a staircase, and integrating essential utilities, such as electrical wiring, plumbing, and heating. There are various loft conversion styles best suited for your property, roof shape, and requirements.

Roof Light (Velux) Loft Conversions – they are an affordable and straightforward design that doesn’t change the roof structure. Instead, they incorporate roof windows, typically Velux windows, into the existing roof slope to bring in plenty of natural light and ventilation. These conversions are ideal for lofts with adequate headroom.

Dormer Loft Conversions – dormers extend vertically from the existing roof slope, providing extra floor space and headroom. They usually feature flat roofs and dormer windows, significantly increasing the usable space. Pitched and hipped roofs also get used.

Mansard Loft Conversions – these create substantial living spaces with significant alteration to the roof structure. With a central flat roof with a gentle pitch and rear wall sloping at 72 degrees, these resemble a separate floor instead of a loft conversion.

L-shaped Loft Conversions – this design incorporates two dormers positioned at right angles to each other, on the main roof and the rear roof. They maximise space in Victorian properties that have rear outriggers. They can create two rooms, ideal for an en suite. A half-rear dormer allows for balcony space.

Hip-to-Gable Loft Conversions – ideal for properties with hipped roofs, the sloping ends (hips) get replaced with vertical walls (gables) to build upwards. This method creates more usable space within the loft by increasing head height.

The layout and square footage are the main determinants of the cost of a loft conversion. Our free itemised quotes and on-site visits will help you select the most suitable type of loft conversion in West Heath that fits your budget, needs, preferences, and property.

Room in the roof conversion (basic) –  £35,000

Dormer loft extension – £50,000

Mansard extension – £60,000 – £65,000

Hip-to-gable extension – £65,000

L-shaped extension – £65,000 – £75,000

Loft conversions in West Heath offer viable solutions for expanding living space. You can add an extra bedroom or bathroom or create a playroom, entertainment room, or home office without increasing the property’s footprint. Additionally, a converted loft improves the energy efficiency of your home. However, to ensure that your conversion is both compliant with building regulations and adds value to your home, it is essential to enlist professionals.

Not all loft conversions or design components fall under permitted development. You must get the necessary planning permission for those outside PD rights. If not, your loft conversion can become unlawful and subject to lawsuits, fines, and demolitions. Loft conversion specialists will ensure your new living space is built to guidelines and building regulations. They can also offer creative solutions to maximise space.

We are loft conversion specialists for Victorian and 1930s homes in London. High-value bespoke designs are at the centre of our creative approach. Drawn by in-house architects, our designs feature space-enhancing, naturally illuminated, functional, and adaptable spaces for modern living. To enable you to experience these spaces, we also create 3D models of designs.

Our process separates the design phase from the build phase, resulting in two distinct contracts rather than one. It allows you to explore options without immediate commitment to construction. Almost all our clients choose to continue with the project.

We believe quality is the defining element of any comfortable living space. From material selection to completion efficiency, high standards prevail in every aspect of our work. Our planning team has extensive knowledge of planning permission requirements and building regulations. They fulfil all legal pre-build necessities, prepare method statements, and assist with Party Wall Agreements and Thames Water build-over Agreements.

To ensure quality control and a smooth build process, every project by GDB has an assigned project manager who coordinates and oversees the work. From ironing out any snags to working with third-party suppliers, we remain flexible to achieve the best results.

The cost of a loft conversion depends on several factors, the volume of the space converted and the design being the main determinants. More complex and labour-intensive structural changes require more time and resources. The choice of building materials and finishes can also impact the overall cost.

Our loft conversions provide comprehensive solutions that encompass everything from itemised quotes to warranties. We deliver your project in two phases – design and build, each with its separate contract. Experienced in-house architects create innovative, bespoke designs that seamlessly integrate elegant new spaces into your home for enhanced functionality and improved aesthetics. A skilled build team using top-quality materials and expert craftsmanship make the designs a satisfying reality.

We offer assistance with legal requirements to ensure a smooth pre-build phase. It includes helping with planning permission, Third Party Wall Agreements, preparing method statements and submitting building control applications. Throughout the project, a dedicated project manager supervises the work from start to finish. We also accommodate last-minute minor changes to deliver a flawless final result.

Most loft conversions fall within permitted development rights, allowing homeowners to proceed without planning permission. However, specific designs and loft conversion types may necessitate obtaining planning permission. The requirements vary based on the property’s location, type, and the size and features of the proposed conversion. Our planning experts will assist you in determining whether your loft conversion project requires planning permission. If so, we will fulfil planning permission requirements by submitting applications.

 

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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