Loft Conversion London: What to Include in Your Project Brief
Updated: Oct 6
Planning a loft conversion in London starts with the space you need, the way you will reach it and the work the rest of the house may need. Before asking for a quotation, put these points into a short project brief. A clear brief helps a builder understand your priorities and identify the information still needed.
THRC Construction — The Home Refurbishment Company — offers loft conversions, house extensions and home refurbishment across Greater London. This checklist helps you prepare an enquiry about your home; it does not establish whether a particular loft can be converted.
Describe how you want to use the new space
Explain whether you want a bedroom, a workspace, a bathroom or a combination of rooms. Say who will use the space, what furniture needs to fit and how much storage matters. Separate essential requirements from ideas you would consider if the layout allows.
Include the postcode and property type. Share photographs of the existing loft only if it is safely accessible, along with any existing plans. Tell the builder about sloping ceilings, visible roof structure, water tanks or other features you already know about. Avoid treating an early sketch as a confirmed design.
Show the staircase and the rooms below
The route to the loft is part of the project. Photograph the current stairs, landing and nearby rooms, and explain which spaces you want to retain. If you have a proposed staircase position, mark it on a plan and identify any questions about the layout.
Describe how people move through the house today. Tell the team if you are concerned about losing storage, changing a bedroom or disturbing a particular finish. Ask what further measurements or assessment are needed before the staircase arrangement and usable loft space can be confirmed.
List the documents and decisions already in place
Send the drawings, surveys, specifications and approval correspondence you already have. Label current documents clearly and separate them from earlier proposals. Explain what is agreed, what is still being explored and who is preparing any further design information.
If a bathroom is included, describe the fittings you have in mind and whether you expect the builder to supply them. Do the same for windows, flooring, heating and lighting. Where a choice is undecided, ask how the quotation will record the allowance and how later selections will be agreed.
Explain access and work to the existing home
Describe access for deliveries, space for storing materials and any restrictions you know about. Say whether you intend to live in the house during the work and which rooms must remain usable. Share your preferred starting period and any important dates, with the programme open for discussion.
Include work outside the loft in your brief: changes to the landing, decoration around the stairs, repairs to retained finishes or a wider home renovation. Ask how protection, waste removal and making good are covered so these items are visible when you compare quotations.
Compare quotations using the same information
Give each builder the same brief and document set. Compare the work included, exclusions, assumptions and responsibilities alongside the total. Clarify the proposed sequence, payment stages and how changes to the agreed scope will be recorded.
Ask which parts of the quotation depend on further design or a site assessment. An initial discussion based on photographs has different limits from a quotation prepared after reviewing the property and detailed drawings.
Bedroom, bathroom or workspace: spelling out room use in the brief
State the intended use clearly — bedroom, bathroom, workspace or a combination — and note storage needs under sloping ceilings. Separate essentials from optional ideas so the brief stays scannable. Who will use the room and what furniture must fit belong in the same notes.
Staircase and landing: why the rooms below matter
The staircase and landing are part of the loft project, not an afterthought. Photograph the current stairs, landing and nearby rooms, and explain which spaces you want to keep. Compact landings in period houses — including many in West London and Hammersmith — are a common briefing challenge across Greater London; describing them early helps the conversation stay practical without assuming every loft is suitable.
Does this checklist mean my loft can be converted?
No. This guide prepares an enquiry; it does not establish whether a particular loft can be converted. Suitability needs proper assessment of the property, structure and access. Use the checklist to organise photographs, priorities and documents — not as a guarantee of convertibility.
Should I include work to the landing and decoration in my loft brief?
Yes. Include changes to the landing, decoration around the stairs, protection of retained finishes and making good. Ask how these items appear in quotations so they are visible when you compare scope, not only the loft shell itself.
How does a loft conversion brief relate to an extension or full refurbishment?
Say whether the loft is standalone or part of a wider project. For added ground-floor space or layout changes, see House extension or home renovation — project brief. For room-by-room finishes and quotation readiness on existing spaces, see How to prepare for a builder's quote.
Related reading
Send THRC your loft conversion brief
Loft conversions and related home projects across Greater London — including West London and Hammersmith.
Include your postcode, how you want to use the new space, photographs or drawings where safe and available, and your main priorities. We can discuss a site visit where appropriate, or the next information needed toward a quote.
Use the contact form, or email / call:
sales@thehomerefurbishmentcompany.co.uk
+44 (0)20 3633 8086
The cover photograph is an interior staircase from the THRC Construction portfolio, used to illustrate the importance of the access route.
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