The majority of our work is in Westminster and the Royal Borough of Kensington and Chelsea, with a few projects in the surrounding London boroughs, and the occasional country estate in the south of England. Although we have been invited to work as far afield as Barbados, we feel it is important for the service we provide to be able to get to site from our Holland Park base as quickly as possible. This allows us to respond to urgent site queries, or hold impromptu meetings, and ensure your project keeps moving along.

We understand that, once the initial butterflies have settled, everyone wants to get started “breaking ground.” However, there are a few milestones to pass first.

Before the building contract is signed with your chosen builder; before planning permission, building control approval or other consents are submitted; before detailed design and documentation; and even before the full consultant team is assembled, every project begins with an initial discussion to help us understand:

• The site or property – its condition, constraints, context, and any planning or heritage considerations.

• Your circumstances – including time, budget, availability, and any practical constraints.

• Your aspirations – the spaces you need, how you want to use them, and any particular ambitions or “wow” moments you want to create.

• Design ideas – both yours and ours, which we develop into a clear architectural direction.

• Your existing team – whether you already have a project manager, interior designer, contractor, or other specialists in place.

• Other stakeholders – such as neighbours, freeholders, estate managers, or statutory bodies who may influence the design or programme.

This information is brought together as the initial Project Brief, which forms the foundation of the project. As the design develops, the brief is refined and expanded, ensuring a clear and shared understanding of your requirements. The clearer the brief, the stronger the project outcome.

PTP Architects London offers initial on-site consultations on a no-commitment basis. It is often the start of a long working relationship, and as well as exploring the potential of your property, it is an opportunity for both sides to ensure the right fit.

Yes – it is not unusual, and perfectly understandable, that you would want the comfort of a meeting with one of our directors or senior architects before committing yourself to an investment like this. Any such discussion, as it would normally be prior to our appointment as your Architect, should be considered informal, but we understand the value our expertise can provide you at this important stage.

Most building and refurbishment projects in the UK follow a recognised design and construction process, described by the Royal Institute of British Architects as the RIBA Plan of Work (the latest summary can be downloaded here).

The RIBA Plan of Work sets out six key stages, from ‘Stage 1 – Preparation and Briefing’ through to ‘Stage 6 – Handover’. In simple terms, the process moves from early concept design, through design development and technical coordination, to tendering and construction on site.

Along the way, there are important milestones, including Planning Permission, Listed Building Consent (where applicable), Building Regulations approval, as well as cost control checks and regular progress reviews.

While the structure appears linear, it is best understood as a framework rather than a rigid sequence. In practice, projects often move back and forth between stages as design decisions are refined, information evolves, and priorities are balanced between cost, quality and time.

Every successful project relies on assembling the right professional team at the right time.

As your Architect, we are typically appointed first, allowing us to guide the overall direction of the project and advise on which consultants are required as the design develops. Depending on the nature of the proposals, these may include a Structural Engineer, Building Services Engineer, Quantity Surveyor, Planning Consultant, Heritage Consultant, Interior Designer, Landscape Architect or Party Wall Surveyor, amongst others.

Not every consultant needs to be appointed at the outset. One of our roles is to coordinate the timing of appointments so that expertise is introduced when it adds the most value, avoiding unnecessary cost while ensuring key decisions are informed by the right specialist input.

The Contractor is usually appointed later in the process, once sufficient design information has been developed to obtain accurate pricing. This provides greater certainty around both cost and quality before construction begins.

A well-coordinated consultant team does not simply produce better drawings; it leads to a smoother process, reduces risk, and helps avoid costly surprises later on.

That is absolutely fine. Many of our Clients come to us with existing professional relationships, whether that is an Interior Designer they have worked with previously, a trusted builder, a Project Manager, or specialist craftspeople whose work they admire.

Construction projects are collaborative by nature, and we are accustomed to working within established teams. Our role is not to replace consultants you already trust, but to integrate them into a coordinated design process where everyone understands their responsibilities and contributes towards a shared objective.

Equally, if you have not yet assembled your team, we are happy to recommend consultants and contractors whose experience and expertise are well suited to your project.

Ultimately, successful projects depend less on who appoints each consultant, and more on ensuring that everyone works together with clear communication, mutual respect and a shared commitment to achieving the best outcome.

This is the all-important question, and often the hardest to answer definitively. At PTP Architects London, construction costs typically range from £750/sq.ft (approximately £8,075/sq.m) to £2,500/sq.ft (approximately £26,910/sq.m). The lower end reflects a full refurbishment of an existing four-storey townhouse; the upper end a comprehensive scheme including basement excavation and extensions.

That is not to say that all basement projects are inherently expensive. Cost is driven by a number of factors, including structural complexity, the extent of building services (heating, cooling, lighting and security), the level of bespoke joinery, and the specification of finishes and sanitaryware.

The only way to establish a realistic budget for your project is through early design development and a clear understanding of scope.

There are many factors that influence how long a building project takes, and in almost all cases it will take longer than you would like. It is worth asking a few key questions:

• How complex is the project? This is the most obvious factor. Excavating and rebuilding a seven-storey townhouse will take considerably longer than remodelling a lateral apartment.

• Is the property listed? If your building is on the National Heritage List for England, additional approvals are required and greater care must be taken to protect and reinstate historic fabric, which can significantly extend the programme.

• Are there other stakeholders involved? Beyond Planning and Building Control, this may include the Health & Safety Executive, adjoining owners (via Party Wall Surveyors), freeholders or other shareholders, estate covenants such as ‘Licences to Alter’, or residents’ groups who may influence the process.

• What is your relationship with neighbours? Supportive neighbours can help things run smoothly; objections can add time through both planning and construction stages.

• How contentious are the proposals? The more complex or sensitive the design, the more moving parts there are—and the more opportunity there is for delays along the way.

As a general guide, and assuming a relatively straightforward path through the above, project duration often correlates with construction cost. At PTP Architects London, we typically work on projects ranging from £500,000 to £20 million, with programmes lasting around 2 to 6 years from initial enquiry to completion.

It depends on the scale and nature of the works. While it is certainly possible to remain in occupation during some refurbishment projects, it is not always advisable, and in many cases it is simply not practical.

If your project involves a straightforward internal refurbishment of a limited area, it may be possible to phase the works so that you can continue living in the property. However, if the scheme includes structural alterations, a basement excavation, extensive extensions, replacement of services, or works affecting kitchens and bathrooms, temporary relocation is often the safest and most comfortable option.

There are also considerations beyond convenience. Construction sites are noisy, dusty and constantly active environments. Access routes may be restricted, utilities may be temporarily disconnected, and health and safety obligations become more complex if the property remains occupied.

Where staying in occupation is important, we discuss this from the outset with both you and the Contractor. In some cases, a carefully planned sequence of works can allow parts of the property to remain liveable while other areas are under construction. Every project is different, and finding the right balance between convenience, programme and cost is an important part of the planning process.

As the Client, and with our support, you are ideally placed to help your project run efficiently, avoid unnecessary delays, and keep the process moving forward. Consider:

• A clear vision from the outset. Alongside budget, programme and key stakeholders, it is helpful to think early about how spaces will be used and to begin gathering references—such as magazine cuttings or Pinterest and Instagram images—that reflect the style and feel you are aiming for.

• Clear communication. Concise, factual information helps shape the initial Project Brief, which we develop with you at the earliest stage. We can also provide a questionnaire to help structure this process.

• The right consultant team, appointed early. We can advise on who is needed and when, but timely appointments are important to maintain momentum and allow the right expertise to be brought in as required.

• Decisiveness. Construction projects involve many decisions, from overall design direction through to individual finishes and fittings. Being able to make clear, timely choices—particularly when options are presented later in the process—helps avoid delays and disruption.

• Good neighbour relations. Early, open conversations with neighbours can make a significant difference. It is far better they hear about your plans from you than via a Planning Notice or Party Wall notification arriving unexpectedly.

• Good preparation saves time. The more clearly your aspirations, priorities and constraints are defined at the outset, the more smoothly the design process can progress. Establishing a realistic budget, identifying key deadlines and understanding how spaces will be used all provide important direction before design work begins.

• Open and timely communication. Questions, concerns or changes in direction are best discussed early, allowing the design team to respond before they affect later stages of the project.

Above all, trust the process. Building projects are inherently complex, but a clear brief, an experienced consultant team and consistent communication provide the best opportunity for a smooth and enjoyable journey.

Changing your mind is perfectly normal.

Few Clients have every detail of their future home fully resolved before the design process begins. One of the great benefits of working with an Architect is that ideas can be explored, tested and refined before they are built.

In the early design stages, changes are relatively straightforward and often form part of the natural evolution of the project. As the design progresses, however, decisions become increasingly interconnected. Altering one element may have implications for planning approvals, structural design, building services, programme or construction costs.

Once construction has commenced, changes generally become more disruptive and more expensive, simply because completed work may need to be altered or replaced.

Our role is to help you make informed decisions at every stage, ensuring you understand the implications of any proposed changes before proceeding. Good planning provides flexibility where it is most valuable whilst maintaining control over time, cost and quality.

As involved as you would like to be.

Some Clients enjoy participating in every design discussion and reviewing each material selection in detail. Others prefer to establish the overall vision before allowing us to manage much of the day-to-day coordination on their behalf.

Most projects naturally fall somewhere between these two approaches.

There are certain key decisions that only you can make, such as approving the overall design direction, confirming budgets, selecting important finishes and authorising significant changes. Between these milestones, we coordinate the consultant team, respond to technical queries and manage the many day-to-day decisions that keep the project progressing.

Our aim is to ensure that you remain informed without becoming overwhelmed. By tailoring our communication to suit your preferred level of involvement, we provide as much—or as little—detail as you require, whilst maintaining complete transparency throughout.

One of the Architect's most important responsibilities is acting as your trusted adviser throughout the project.

Construction projects involve many parties, each with their own expertise, contractual responsibilities and commercial interests. Our role is to coordinate this team whilst keeping your objectives firmly at the centre of every decision.

Depending upon the services you appoint us to provide, this may include advising on design quality, coordinating consultants, administering the building contract, reviewing the Contractor's progress, assessing applications for payment and helping resolve issues as they arise.

Although no construction project is entirely free from unexpected challenges, having an experienced professional representing your interests provides reassurance that decisions are made objectively and with a clear understanding of their wider implications.

Ultimately, our success is measured not simply by the building we deliver, but by whether it fulfils the aspirations that led you to begin the project in the first place.

Every project is unique, and every Client has different priorities. Our role is to understand both.

PTP Architects London is able to provide services from the earliest feasibility discussions through to completion of construction, whether as your Architect alone or as part of a wider professional team. Depending upon your requirements, our involvement may include briefing, concept design, planning applications, technical design, consultant coordination, contract administration and site inspections throughout construction.

We believe that good architecture extends far beyond producing beautiful drawings. It is about carefully balancing design ambition with technical expertise, commercial awareness and practical experience, whilst navigating the many statutory approvals, consultants and Contractors involved in bringing a project to life.

Our practice has extensive experience delivering complex refurbishments, listed buildings, basement excavations, high-end residential developments and bespoke commercial projects throughout central London. We understand not only how buildings are designed, but how they are successfully delivered.

Most importantly, we see every commission as a collaborative relationship. From the first conversation through to the day you move back into your completed property, our objective is to provide clear advice, thoughtful design and the confidence that your project is in experienced hands.

Contact us!