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Loft conversion · London
Loft conversion in London
We assess your existing loft and define the agreed interior work around its layout, access and design, with structural responsibilities confirmed separately.
- We review the room use and existing roof-space information
- We define our interior package and specialist interfaces
- We coordinate finishes around the confirmed layout

Existing roof space assessed
Usable space considered
Structural scope kept explicit
Interior finishes coordinated
Existing roof spaces
We start with the room your loft could become.
We assess loft enquiries around the existing house and the accommodation you need. A bedroom, office and occasional-use room place different demands on layout, access and services. We bring those requirements into the initial proposal so the available roof space is considered alongside the landing and rooms below.
Our role begins with establishing the work and the appointments needed to deliver it. Structural design, roof alteration and structural construction remain unconfirmed responsibilities until explicitly agreed. We define any proposed interior package against an assessed design and a suitable starting condition, with engineering and approval responsibilities clearly assigned. New-build housing is outside the service.

Our project proposal
We separate the structure from the interior package.
We record the intended use, access arrangement, finish preferences and the parts of the house affected by the proposal. We can define interior work such as joinery, flooring, plaster preparation and decoration where agreed. We do not treat these activities as confirmation that roof alterations or floor strengthening are included.
Where the project needs architectural, engineering or other specialist input, we identify the required decisions before defining the relevant construction appointment. Electrical, heating and plumbing responsibilities are recorded separately.
| Workstream | What we define |
|---|---|
| Existing-space assessment | Room use, measured information and visible constraints |
| Structure and roof | Unconfirmed responsibilities requiring explicit design and construction appointments |
| Stairs and circulation | The proposed connection and its effect on the floor below |
| Interior completion | Agreed joinery, surfaces, flooring and service interfaces |
| Approvals and records | Responsible parties, required decisions and handover information |
Room planning
We consider useful headroom and the route into the room.
We distinguish total floor area from the space that remains useful beneath the roof slopes. We review furniture positions, standing areas and low-level storage against the information available. Where measurements or specialist design are required, we identify them before a layout is treated as settled.
We also examine the proposed stair position in relation to the existing landing, bedroom doors and storage. A new room is only part of the change: the route to it affects everyday use of the house. We capture those connections in the proposal so the interior arrangement follows the agreed access design rather than competing with it.
Before work is agreed
We identify the information needed to proceed.
We establish which design and permission decisions remain outstanding and record who is responsible for obtaining them. Loft proposals can follow different planning routes depending on the property and the actual changes. We do not assume that an alteration falls within permitted development or that planning advice is part of an interior appointment.
Our workflow
Six stages from loft enquiry to interior handover.
We sequence the interior around the confirmed roof-space layout, stair connection and eaves details. Headroom, service routes and access below the new room are resolved before the finishes that depend on them.
How we carry out your loft conversion
Assess the roof-space enquiry
We establish the intended room use and review the existing loft information. We record access, visible constraints and the assessment needed before a workable layout can be confirmed.
Define the layout and appointments
We define the proposed arrangement with the appointed design information. We identify structure, stairs, permissions and service decisions that remain outstanding, together with the party responsible for resolving them.
Agree our interior package
We agree our written work package and its interfaces. Where the structural shell is supplied separately, we define its handover condition, inspection status and provisions for the interior work.
Prepare and coordinate services
We prepare the agreed work area and coordinate service interfaces before concealment. We record unexpected findings and agree any change that affects our package or the readiness of preceding work.
Complete the agreed interior
We complete the agreed interior installation and finishes against the specified layout. Joinery, flooring and decoration are coordinated around slopes, access panels and retained services.
Review work and records
We review our completed work with you, record outstanding items and hand over the relevant product information. We identify documents due from separately appointed parties so interior completion is not mistaken for their sign-off.

Inside the roof
We coordinate finishes with the technical construction.
We develop the finish proposal around the agreed insulation, ventilation and window arrangement. We identify where those details reduce room dimensions or affect fittings. Our material schedule considers cleaning, repair and appearance under sloping ceilings, while technical changes remain with the responsible designer.
We plan fitted storage around the eaves without obstructing required access or ventilation arrangements. Flooring and service routes are coordinated with the underlying construction. We review colours and finishes in the light available and record product choices before ordering, reducing the risk that late substitutions disturb the agreed interior details.

Working above occupied rooms
We plan the route through the existing house.
We record the delivery route, material storage and protection needed for retained rooms. We agree which possessions must be cleared and identify services or stored items that need access during the work. Any scaffolding or external access requirement is allocated to the appropriate appointment rather than assumed within the interior package.
We coordinate our access with the programme for the new stair connection. Restrictions around the landing can affect bedrooms and bathrooms below, so we identify those dependencies before scheduling our work. We agree communication for interruptions and confirm occupation arrangements against the actual construction programme and assessed safety requirements.

Quotation and completion
We price the agreed package and its dependencies.
We confirm the proposed sequence around preceding construction, product availability and required decisions. At completion we review accessible finishes, joinery and affected access areas, then record any outstanding work. We provide care information for our agreed installation and identify the separate approval or specialist records needed from the responsible parties.
Questions about loft conversion
Do you carry out every part of a loft conversion?
We first define the appointment required. Structural design, strengthening and roof construction remain unconfirmed until explicitly agreed with the responsible parties. We can develop a clearly bounded interior proposal against the assessed design and record how it connects with separately appointed work.
How do you assess whether the loft layout will work?
We review the intended use, available measurements and relationship with the floor below. We identify where further survey or design information is needed for headroom, stairs and room arrangement. Our proposal follows that information rather than assuming the tallest part of the roof makes the whole loft usable.
Can you include storage beneath the eaves?
We consider eaves storage within an agreed joinery package, using the confirmed construction and room layout. We coordinate door positions and usable depth with service access and ventilation requirements. The result is defined against the actual available space before manufacture or fitting.
Can the room become a bedroom?
We record sleeping use at the start and identify the design and approval questions it creates. The appointed professionals must establish the relevant safety, access and comfort requirements. We develop the interior work against that confirmed use rather than describing an unassessed room as a bedroom.
Do you handle planning permission?
We record who is responsible for planning advice and applications in the written appointments. We identify outstanding decisions that affect our work and programme. We do not assume approval is included or that a particular roof alteration automatically qualifies under permitted-development rules.
Can an en-suite form part of the proposal?
We include the intended bathroom in the initial room brief and identify its layout and service interfaces. Plumbing, drainage, ventilation and electrical responsibilities need explicit appointments. We coordinate any agreed interior work with that technical information before finalising finishes and joinery.
Can you work while we remain in the house?
We review our access and the wider construction sequence before agreeing arrangements. The stair connection and restrictions around the landing can affect use of existing rooms. Occupation depends on the actual work and assessed safety measures; we incorporate the confirmed arrangement into our programme.
What do you hand over after the interior work?
We review our agreed finishes and provide relevant product and care information, with any outstanding items recorded. We distinguish this handover from structural, statutory or specialist documentation supplied by others. The responsibility schedule identifies which additional records remain due and from whom.
Loft conversion by area
Choose your area to see the scope and working sequence for this service.
Browse all 40 service areas
Acton Balham Battersea Bayswater Belgravia Bermondsey Bethnal Green Brixton
Camden Town Canary Wharf Chelsea Chiswick Clapham Crouch End Dulwich Ealing
Earls Court East Dulwich Finchley Fulham Greenwich Hackney Hammersmith Hampstead
Highbury Highgate Islington Kensington Kingston upon Thames Marylebone Muswell Hill Notting Hill
Paddington Putney Richmond Shepherds Bush Streatham Wandsworth Westminster Wimbledon
Discuss your existing property
Tell us the postcode, the rooms involved and what you want to change. The scope and any specialist responsibilities need to be confirmed for your property.