house extension architect Holland Park

Our firm specialises in house architecture in Holland Park, most commonly Victorian houses. We take pride in helping our clients enhance their property value while optimising space. We create bespoke designs and contemporary design extensions with interior reconfigurations to maximise natural light and extra space. Our creative design team elevates the planning process to a new level.
As a leading architectural practice, we specialise in helping homeowners navigate the planning process, building regulations, planning permissions, party walls, and building control. Our experienced team handles all regulatory challenges in extension projects, making your home’s transformation seamless and stress-free.
We carry out architectural work for rear, wraparound, side return, or infill extensions to best suit your space and increase its value. We begin with our design process, initial drawings, structural calculations, and 3D visualisations to assist clients in picturing the transformation, alongside a precise scope of work for the building contractor. Let us help expand your floor space and elevate your property’s worth. Our expertise ensures that each project is expertly designed to meet your specific needs.
Being a quality West London extension architects practice, we deliver carefully detailed apartment refurbishments and layout reconfigurations shaped around modern living and regulatory requirements.
apartment Extension architects

We specialise in providing comprehensive design and architectural services for apartment extensions in Holland Park. Our offerings include detailed planning advice, design layout changes, custom joinery, and regulatory drawing preparations. Whether you are looking to completely revamp your apartment’s layout or to implement specific modifications, we manage every aspect of the project.
Our services encompass the entire process, from securing planning permission and building approvals to obtaining landlord consents and the necessary license to alter documentation. We also handle all planning applications ourselves.
Additionally, we offer project management as part of our complete service package. Our architectural service ensures a seamless transformation of your space, enhancing both functionality and aesthetics to create modern, stylish living environments.
As experienced extension architects, we design thoughtful, well-considered house extensions tailored to each property’s character, planning context, and long-term value.
extension conversion package
3 Meter rear extensions package
£60,000.00 INC. VAT
What’s included:
6 Meter rear extensions package
£104,700.00 INC. VAT
What’s included:
At Payte Architects London, our rear extension service is about making it simple to gain more space without losing control of cost or complexity. With over 10 years’ experience on Holland Park homes, we offer two fixed‑price packages at three and six metres (including VAT), so you choose how far to extend and we handle design, approvals and on‑site work up to first fix.
You’ll work with a friendly architectural team that actually picks up the phone. All architectural work is carried out by architects registered with the Architects Registration Board (ARB) or chartered with the Royal Institute of British Architects (RIBA), and we coordinate closely with our dedicated extension build team so design and construction stay joined‑up from day one.
We take care of the planning route – from Lawful Development Certificates for three‑metre projects to prior‑approval applications for six‑metre schemes – using our experience with boroughs such as Haringey Council’s planning team, Lambeth Council’s planning service and Brent Council planning to shape proposals around what local councils typically support.
Throughout, we keep communication simple and regular so you always know where your project is and what’s coming next, aiming for a bright, well‑built Holland Park extension that quickly becomes the main room everyone uses.

Exclusions
This package is not applicable to property where you need planning permission or listed building consent, or if there is an article 4 on your property.
In addition to the above, the following exclusion applies:
- Party wall award
- Building control fees
- Any specialist consultants
- Asbestos removal fees
- Finishing (sanitary ware, tiling, floor finishing, wall finishing, joinery).
- Party wall award
- Building control fees
- Any specialist consultants
- Asbestos removal fees
- Finishing (sanitary ware, tiling, floor finishing, wall finishing, joinery).
ARRANGE A FREE CONSULTATION
Arrange a free consultation with one of London’s finest architect practices, we offer clients a 30 minute consultation.
FREE NO OBLIGATION CONSULTATION
VIRTUAL CONSULTATION AVAILABLE
ON SITE CONSULTATION AVAILABLE
Innovative Holland Park Extensions Crafted with Exceptional Architecture
Our Holland Park architects create smart, sustainable extensions that suit your space perfectly.

Wraparound
We specialise in wrap-around extensions. This is a popular way to expand and transform properties. This extension combines a rear and side addition. It creates an L-shape that expands ground-floor space. This is ideal for open-plan kitchens, living spaces, or adaptable rooms that fit modern lifestyles. We handle everything from design and planning permission to construction.

Single Storey
A single-storey extension can really boost space in your Holland Park property. It can be added to the back or side of the property. This addition offers more space for a modern kitchen, a living area, or a home office. This extension improves the flow inside and makes the property more practical. Our architectural team makes it easy for you to get great results that suit your property.

Multi Storey
A multi-storey extension in Holland Park can provide a lot of space. You can use it for extra bedrooms, bigger living areas, or more bathrooms. Building up on your property lets you make the most of it without losing any garden space. We take care of everything. This includes planning, permissions, and construction. We ensure your extension fits well with the current architecture.

Side Return
A side return extension utilises the unused space beside your home. You often find this add on in Victorian and Edwardian buildings in Holland Park. Clients can extend into this narrow area to make a wider, open-plan kitchen. This change will let in more natural light. Our architects are experts in side return extensions. These designs boost functionality and add to the property’s value.

Rear Extension
A rear extension expands the back of your property. This gives you room for an open-plan kitchen, a larger dining area, or a more spacious living room. This is ideal for clients looking to improve their ground floor. These extensions boost natural light and link indoor and outdoor spaces smoothly. We create rear extensions that match your home’s style. They also boost efficiency and value.
Seamless Holland Park Home Extensions from Concept to Completion
Our team of architects, designers, and builders in Holland Park creates stylish and practical home extensions. We handle each stage, from the first meeting to the final build, with care and precision.
Free Initial Consultation
In your 30-minute free consultation, we’ll discuss your project vision, design choices, size, and budget for the extension. This process ensures that we can align your ideas with the practical aspects of the project with accuracy.
Full Architecture Service
We offer bespoke services for home extensions. This features on-site assessments, detailed drawings, 3D visualisations, planning applications, and tender management. We customise each service to meet your unique needs.
Planning & Permissions
Our Holland Park architects focus on extension planning. Our professional practice handles it all, from the initial idea to final approval. We carefully find ways to handle local rules, stay within zoning laws, and meet building codes.
Complete Building Works
We’re a full-service architecture firm that specialises in extensions. We have in-house architects, interior designers, and building contractors. Our team ensure easy collaboration, guiding your project till its delivery.
Local Topic
General information only. Planning and licensing rules change and depend on the individual property. This article is not legal or professional advice.
HOLLAND PARK — THE GLAZED-LINK EXTENSION: CONNECTING VILLA TO GARDEN BUILDING (DESIGN; DOC L)
We’ve stood in a lot of Holland Park gardens over the years, usually with an owner pointing at two buildings at once. The villa behind us. The coach house, studio or outbuilding at the far end — often rather good, often recently refitted as a gym or office. And between them, twenty metres of weather.
What we’ve noticed, again and again, is that the owner talks about the two buildings as if they were one household. The garden, meanwhile, is quietly running them as two.
Winter tells the truth about these arrangements. We’ve watched it on our own projects: the gym visits taper off around November. The office commute starts involving shoes, an umbrella, a small summoning of will.
The guest annexe sits dark because breakfast is a wet dash away. Our observation, for what it’s worth, is that the buildings are rarely the flaw in these plots. The gap is.
The glazed link is the type that answers it — a light, transparent corridor-room stitching villa to outbuilding — and the versions we’ve seen work share a temperament: they stay junior. Lower than both buildings they join. Slim in plan. As transparent as the physics allows.
The villa goes on being a villa, the coach house goes on being a coach house, and a line of light runs between them.
We’ve also seen what happens when the height goes wrong — the composition congeals into one lumpy building — whereas the low, glassy versions give the plot that pavilion-and-court quality the borough’s best gardens seem to carry naturally.
On RBKC’s conservation streets, we’ve noticed the same lightness doing planning work too: a transparent connector alters the setting of both buildings less than any solid alternative, and the consented schemes we’ve followed lean into precisely that.
Here’s the part that surprises people when we walk them through it: small has never once meant simple.
This little building makes two junctions with existing fabric — twice the flashings, twice the movement joints, twice the damp continuity of an ordinary extension — and its glassy skin still has to face Approved Document L’s arithmetic, which mostly-glazed structures answer with high-specification units and honest whole-extension sums.
The GGF’s guidance covers the systems that get the numbers there. On the links we’ve built, the structure wants to vanish — slim steel or aluminium, sized by an engineer until the frame barely interrupts — the floor runs level end to end with both thresholds defended, and underfloor heating has suited the slim section every time, CIBSE-sized so the glass line stays clear of radiators.
And afterwards? This is our favourite observation of the lot. The commute goes indoors.
The gym gets used in January. Guests gain proper independence and a dry route to coffee. The garden building stops being a destination anyone dresses for and becomes, simply, rooms of the house — further from the kettle, no further from the life.
One pattern we’ve seen enough times to name: on nearly every one of these projects, someone eventually suggests widening the link into a room of its own. The links that stayed magical resisted. A glass breath between two solid sentences — that’s the whole trick, in our experience. Widened, it becomes a corridor with delusions. Kept thin, it lets the buildings do the talking, daylight running between them. The best line in these ensembles, we keep finding, is the thinnest one.
Holland Park Home Extension Planning, Design, and Construction
Feasibility Studies for Home Extensions
Our Holland Park property extension architects carry out comprehensive feasibility studies. They look at structural integrity, space potential, and costs. This ensures that property expansions are smart and efficient.
Planning Permission for Extensions
Our team of architects collaborates with local councils. We navigate planning policies, building codes, and zoning laws to ensure smooth compliance. Our expertise simplifies the process, providing a stress-free experience.
Project Management and Contractor Coordination
We monitor construction progress, project timelines, and project quality. This way, we ensure everything operates without issues and according to schedule. We focus on details to ensure everything runs smoothly from start to finish.
Sustainable Extension Materials & Energy Efficiency
Our eco-friendly extension designs and insulation solutions improve property energy efficiency, sustainability, and comfort. Our approach reduces environmental impact and improves thermal performance.
Structural Engineering and Load-Bearing Analysis
We check that extensions meet safety, stability, and regulatory standards. We do this with structural assessments and compliance checks. Our team makes sure that a property extension blends in well, is safe, strong, and built to endure.
Interior To Exterior Extension Flow and Aesthetic Integration
Our architects mix new extensions with the current style. This creates a smooth transition between the old and the new. Our architects respect the original structure while enhancing functionality, aesthetics, and flow.
why work with us?
Fast Turn Around
We deliver swift completion of extensions by leveraging our efficient planning, expert team, and streamlined project management, ensuring a smooth and expedient process.
Fixed Pricing
We provide transparent, fixed pricing for architectural and building services for extensions, offering clients a clear understanding of costs. This approach allows for confident budgeting.
We Maximise Value
We guide clients to achieve the best outcome for extensions, balancing the investment benefits with a comfortable living space. Our expert advice ensures maximum financial value.
Turnkey Operation
We offer a full-service for home extensions, guiding clients from the initial consultation to project sign-off. You will have a dedicated account manager overseeing every detail.
recent EXTENSION projects
Local Topic
General information only. Planning and licensing rules change and depend on the individual property. This article is not legal or professional advice.
HOLLAND PARK — THE DOUBLE-HEIGHT EXTENSION: MATCHING VILLA SCALE AT THE REAR (DESIGN; DOC A)
There’s a scale problem at the back of Holland Park’s villas that ordinary extensions can’t solve.
These houses run big — four-metre ceilings at raised ground, windows the height of a bus stop.
And the standard single-storey rear addition, 2.7 metres of ceiling under a flat roof, meets that grandeur like a bungalow apologising to a cathedral. The room works. The composition doesn’t.
The double-height rear is the villa’s own answer: one storey of plan with two storeys of volume — a garden room rising four, five, six metres, meeting the house at its own scale.
Volume as the luxury
Inside, the payoff is the rarest commodity in domestic design: air overhead.
A kitchen-living space under a five-metre ceiling behaves differently.
Light from tall glazing and clerestories washes deep into the plan, the villa’s original proportions continue rather than stepping down, and the new room holds its own against reception rooms that have intimidated furniture for 150 years.
A gallery or mezzanine edge at first-floor level can borrow the volume without spending it, linking the upstairs plan to the new space — with the guarding and stair geometry that implies designed in from the start.
Structurally it’s a tall, often heavily glazed box asking real questions — wind loads on high glazing, slender walls wanting discipline, long roof spans — squarely the engineer’s province under Approved Document A, engaged at concept stage, not pricing stage.
Thermal design scales with the volume too: heating five vertical metres rewards underfloor systems and stratification thinking, and Approved Document L applies its glazing arithmetic to elevations that want to be generous.
The neighbourly geometry
A tall rear addition earns tall scrutiny. Its height approaches first-floor windows next door, so the BRE daylight conventions get tested early and honestly — the schemes that succeed pull the height away from boundaries, stepping down at the edges so the drama sits centre-plot.
On RBKC’s garden-square streets the massing conversation is real, and the winning argument is usually proportional: this addition matches the villa’s own scale rather than exceeding a terrace’s.
The type costs more per square metre than the flat-lidded default — you’re buying cubic metres, and cubic metres of engineered, glazed volume at that.
What they purchase is the one thing Holland Park’s market can’t manufacture elsewhere: a modern room worthy of the houses it serves. The villa speaks in volume. The best extensions here answer in kind.
FAQ
Services
We offer a comprehensive suite of architectural services for Holland Park, our skilled architects each specialise in distinct disciplines. This diversity allows us to tailor our approach to meet the various facets of architectural design.







