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Planning & Design21 Feb 20278 min readBy ASAAN London

Writing the Client Brief: How to Define a Luxury London Renovation Before the Architect Starts

Writing the Client Brief: How to Define a Luxury London Renovation Before the Architect Starts

The quality of a renovation's outcome is determined long before the first trade arrives on site. It is determined by the quality of the brief — the document that defines what the client wants, why they want it, and what constraints apply. A well-written brief saves months of design iteration, reduces the risk of expensive late changes, and gives the design team the clarity they need to produce work that genuinely fits the client's life.

Most luxury renovation projects begin with a conversation between a client and an architect or designer. The client describes their aspirations — more light, a proper kitchen, a master suite, space for the children. The architect listens, asks a few questions, and produces a set of initial sketches. These sketches capture some of what was discussed but miss other elements, and the client adds corrections. Further rounds follow. Months pass before the design has converged on something the client genuinely recognises as their own.

This process is normal, but it is inefficient and expensive. Design time is not free. More importantly, changes made at RIBA Stage 3 (technical design) cost ten times more to implement than changes made at Stage 1 (preparation and briefing). Changes made after construction begins cost significantly more still.

The client who invests time in a thorough written brief before the architect starts saves that time many times over in the design process — and gets a better result because the design team is working from a clear, shared understanding of the objective.

What a Brief Is Not

A brief is not a mood board. Pinterest boards, Instagram saves, and magazine tear sheets are useful as visual reference — they communicate aesthetic direction faster than words can — but they are not a brief. They tell the design team what the client likes the look of; they do not tell them how the client lives, what the project must achieve, or what constraints apply.

A brief is not a room schedule. A list of rooms ("master bedroom, two en-suites, kitchen-dining, drawing room") defines the building programme but not the way the client intends to use it. Two families might have identical room schedules and completely different briefs.

A brief is not a wish list. A wish list has no priorities. When a project encounters a budget constraint or a planning restriction (and most do), a wish list provides no guidance on what to sacrifice and what to protect.

A well-written brief is a document that enables the design team to make good decisions when you are not in the room.

The Structure of a Comprehensive Brief

1. The Client's Life and the Way They Use Their Home

This section describes who will live in the property, how they live, and what the property needs to support. It is the most important section of the brief and the one most commonly omitted.

Questions to answer: - Who are the primary occupants? Ages of children, if any. - What is the pattern of the day? Early risers or late? Work from home? Regular entertaining? - How do you entertain? Small dinners (6–8 people) or larger gatherings? Formal or informal? - What is the relationship between kitchen and other spaces? Do you cook with guests present, or prefer a separate kitchen? - How often do guests stay? Do you need dedicated guest accommodation or will occasional use of a family room suffice? - What is the relationship between indoor and outdoor space? How much do you use the garden in British weather? - Do you have live-in staff? What accommodation and facilities do they require? - Are there specific hobbies or interests that the house must support? (wine collection, art collection, music, fitness, cinema)

2. The Project Objectives

What must the project achieve? This section should be specific and testable — "the project will have succeeded when..." is a useful framing.

Common objectives in prime London renovations: - Create a coherent, contemporary home from a property that has been divided or poorly maintained - Maximise floor area within permitted development limits - Create a principal bedroom suite that meets a specific standard - Bring all mechanical and electrical services up to current standard - Create a home that will hold its value and appeal to a future buyer in the prime market

3. Priorities and Non-Negotiables

This is the section that most clients find hardest to write — because it requires choosing. But it is the section that most clearly guides the design team when trade-offs must be made.

Format suggested: - Must have (non-negotiable, project fails without these): e.g. "A kitchen large enough for the whole family to be in simultaneously, open to the garden" - Should have (strongly desired, significant to compromise): e.g. "A dedicated home office separate from the bedroom floor" - Nice to have (desirable but expendable under budget pressure): e.g. "A separate media room" - Do not want (constraints — things the design must avoid): e.g. "No open-plan arrangement where kitchen smells reach the drawing room"

4. Aesthetic Direction

Describe the aesthetic you are aiming for, in terms that go beyond visual reference: - Formal or relaxed? (The same material palette reads differently depending on how the spaces are organised) - Warm or cool in tone? (Timber and stone, brass and velvet, vs. concrete and steel, chrome and leather) - Contemporary, traditional, or transitional? - What is the relationship to the building's period? (Sympathetic restoration, deliberate contrast, or neutral contemporary within historic structure)

Include visual references (Pinterest, saved images, properties you have admired) but also describe what specifically you like about each reference — it may be the light quality, the proportions, the material combination, or the sense of order. The design team needs to know which aspect to carry forward.

5. Room-by-Room Programme

For each significant room or zone: - Primary use and secondary uses - Who uses it and when - Specific requirements (dimensions if known, orientation preference, storage requirements, furniture that must fit) - Adjacency requirements (what it must be near or connected to) - Natural light requirements (south-facing for a morning room, north-facing for an artist's studio)

This section does not specify the design — it specifies the need that the design must meet.

6. Technical Requirements

What must the building achieve in technical performance terms: - Energy performance target (EPC rating, SAP score, specific insulation or heating system preference) - Home automation / smart home scope (full building automation, partial, or minimal) - Security systems (CCTV, intruder alarm, access control) - AV and networking (home cinema, distributed audio, broadband infrastructure) - Sustainability requirements (heat pump, solar PV, EV charging) - Future-proofing requirements (space for future lift, future pool, future extension)

7. Budget and Programme

Budget: Be honest with the design team about the available budget. An architect who does not know the budget cannot design to it — and a design produced without budget reference almost always exceeds it, requiring a painful value-engineering process that rarely improves the design.

Provide a total project budget (construction cost plus professional fees plus contingency plus fit-out) and a construction contract budget (the amount available for the main contractor). The relationship between these figures — and what the contingency must cover — should be agreed with the project manager before the design starts.

Programme: When must the project be complete, and why? If there is a genuine driver (school term, birth of a child, property lease expiry, planned sale), state it and its implications. If the programme is flexible, say so — it gives the design team and contractor more options.

8. Planning Context

Provide the design team with: - Whether the property is listed and to what grade - Whether it is in a conservation area and which one - Any previous planning applications and their outcomes - Any permitted development that has already been used - Any neighbouring planning applications that may affect the project

This information shapes the design strategy from the outset. A design team that discovers the building is Grade II listed at RIBA Stage 2 must revisit work that could have been done differently from the beginning.

The Brief as a Living Document

A brief written before design begins is a starting point, not a contract. As the design develops, the brief should be updated to reflect decisions made — when a choice between two approaches is resolved, the brief records the resolution and the reason. When external circumstances change (budget is revised, a planning constraint is discovered), the brief is updated to reflect the new reality.

The brief at RIBA Stage 4 (technical design) should be substantially the same document as at Stage 0, with amendments accumulated over the intervening months. This continuity — of intent, of priority, of constraint — is what keeps a long project on course when individual decisions are made in isolation.

Working with ASAAN on the Brief

ASAAN offers a pre-appointment briefing service for prospective clients who want to develop a thorough brief before appointing a design team. We bring the perspective of experienced contractors — familiar with what is achievable at different budget levels, what planning contexts typically allow, and what technical requirements tend to be underestimated — to help clients ask the right questions before the design process begins.

A project that starts with a well-developed brief is a different kind of project: less exploratory, more directed, and more likely to produce a home that is genuinely, specifically right for the people who will live in it.

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