Marval Developments works with the UK’s best designers and architects to elevate your space to the next level. Born in London we are now excited to work with new projects in Wales.

 

Residential

From Berkley Square to the burbs of Brockley. We have designed and built lovely spaces to live in across London and now we aim to continue this in Wales.

Commercial

Whether you are a retailer looking for a reliable, timely fit out or an ambitious new company looking to put your stamp on your new workplace, we can help you.  

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BeSPOKE

Carpentry, design or building. We can do special things for your needs.

Sawing to new heights

 

For a complete overall of the back of this 1930’s property, a ‘SAW TOOTH’ pitch roof was used to exploit the stepped terrace of Algiers road to allow one side to be higher than the other and creating a double height feel inside.

This was combined with a significant pergola built from steel and charred cladding with a cast concrete chimney and an external fire sitting as the centre piece on the decking.

The theme was continued inside with polished concrete floors and chimney breast which mirrors the concrete fireplace outside.

Nominated as one of London’s best extensions in the “Don’t move, improve” Awards it received exposure and praise from the The Times and Evening standard papers.

 

 

Mixing Traditional and Contemporary at a Brockley house

 

This is a generously proportioned Victorian house in the Brockley conservation area. We part renovated this property including all of its bathrooms, heating, and the main downstairs, double height extension. Traditional materials and style were mixed with contemporary ideas to produce a lovely extension which flows seamlessly into the original Victorian building. The main feature of the double height ceiling adds the level of grandeur expected for such a sizeable property.

 

 2 becomes 3 in this Central London Renovation

 

Our client, an interior designer, benefitted from an outstanding location, but little space. We therefore re-configured the internal rooms to create a third bedroom, by moving the kitchen into the study.  We refurbished the rest of the flat at the same time, creating an innovative breakfast bar from reclaimed oak and built in wardrobes in the bedrooms. This was all achieved whilst keeping the original features in this listed building. 

 

 

 

A fresh design for tired Victorian Flat

 

In this property we were briefed to bring the 'sunshine' to Brixton. The bathroom was based on a classic Moroccan theme and the small extension was given a Greecian feel with its exposed painted beams and plastered shelving units. Modern building techniques were used to bring light in to the space with bi-fold doors, flush roof light and patent glazing, which was cleverly offset with a rattan ceiling given the whole extension an exotic feel. A window seat was created to give the customer an area to read in, which also folded out as a bed to give the one flat more flexibility.

 

Dulwich Extension & Refurbishment

 

Designed by the architects Gruff Ltd, this Dulwich house was given a generous, contemporary extension for the growing family to expand into. The clever, cantilevered bay allows for a more functional use of space over the statement window while the bespoke carpentry in the corridor provides integrated storage and seating. Clad in anthracite, grey panels, the sleek exterior blends with the original Victorian building whilst remaining discreet. 

 

Hilly fields

  is a thoughtfully reimagined mid-century family home, transformed into a light-filled, contemporary living space that balances warmth, functionality, and refined architectural detail. A modern rear extension introduces openness and clarity, with full-height glazing and sliding glass doors creating a seamless connection between interior and garden. A large structural roof-light draws natural daylight deep into the heart of the home, enhancing the sense of space and calm throughout the open-plan living areas.

The exterior combines clean modern lines with textured western red cedar cladding, offering a subtle contrast between natural materials and contemporary form. Inside, polished concrete floors are softened by oak veneer cabinetry and warm timber detailing, creating an inviting yet minimalist palette. Vaulted ceilings and exposed timber beams celebrate the home’s structural integrity while adding character and visual interest. Carefully considered materials, natural light, and open spatial flow come together to create a modern family home that feels both elegant and comfortable.

House for a filmmaker

An extension and full refurbishment to a Victorian semi in South London, providing a calm, minimalist back drop to promote creativity and relaxation

The owner, when not on set, works from home and wanted a space that flowed across the house.

The generous proportions of the existing house are combined with the extension to give a large open plan space for the kitchen, dining and living spaces. There are annexed rooms off this larger space: a library, gym, steam room and a cinema room for the client to work from home.

Tying the new to the existing is an arched form that carries through from the arch of the front entrance porch through to the extension space and framing the view to the rear window. The arched form is accented with a muted green colour and a continuing palette of muted colours extends in the hallway with the marble floor and to the artworks chosen for the spaces.

 Lewisham’s Bold Infill Home Sets New Standards for London’s Housing Crisis

In the bustling streets of Lewisham, London’s latest architectural endeavour a modest yet ambitious infill home has emerged as a beacon of innovation in urban housing.

This two-bedroom home is anything but ordinary: it utilizes a split-level layout to optimize the compact 90 square meter space, introducing a vertical flow that maximizes natural light and seamlessly integrates with its sloping site. The approach is innovative, utilizing a limited palette of locally contextual materials London stock brick, composite cladding, and understated colours that reflect the neighbourhood’s traditional aesthetic. . With sustainability at its core, the house integrates energy-efficient systems, maximizes natural ventilation, and provides generous outdoor space designed to foster biodiversity with planters and greenery. Every aspect of the home, from its composite cladding with recycled materials to its car-free design and integrated bicycle storage, reflects the family’s and architect’s shared commitment to environmental responsibility.

 MontaCute is a sensitively designed residential project that responds to the unique topography and character of its South London site. Set on a sloping plot, the design resolves significant level changes through a thoughtful interplay of volumes and spaces that enhance natural light, circulation, and everyday living.
The building’s form and materiality respond directly to the site’s natural terrain. By stepping the plan and section, the design maximises usable space and reinforces fluid movement through the house. Generous openings frame views across the neighbourhood and allow daylight to penetrate deep into the interior, creating a bright and inviting atmosphere throughout.

The brief for MontaCute focused on creating a home that felt cohesive with its context while responding dynamically to the site’s elevation changes. The architecture negotiates level differences with a sequence of internal and external steps, terraces, and openings that connect the home to its landscape.

 Pitched Black

RIBA London Regional Award Winner 2022

Pitched Black is a distinctive and highly crafted family home designed and built by Gruff Architects for one of the practice’s directors. Located on a constrained backland site within a conservation area in Brockley, south-east London, the project transforms significant site limitations into a bold and award-winning architectural statement.

The house is defined by a strong architectural contrast between materials and form. A light brick base anchors the building to its surroundings, while a striking black-clad upper storey with a pitched roof appears to sit confidently above. The angled geometry of the upper level reduces overlooking, protects neighbouring privacy, and gives the project its distinctive character.

Generous glazing and carefully positioned openings draw natural light deep into the interior and frame views of surrounding trees and landscape, creating a calm and private living environment despite the tight urban setting.

Pitched Black received a RIBA London Regional Award in 2022, recognising the project’s architectural quality, innovation, and sensitive resolution of a challenging site. The award highlights the success of the design in delivering a distinctive, well-crafted home within a complex urban context.

A Georgian town house gets a new look

 

This house needed space and light breathed into it. By removing the wall between the kitchen and living room and then offsetting the kitchen units into the large hallway the ground floor was given the feeling of space it needed.  Upstairs the ensuite was transformed into a wet room with a new window into the bedroom which allowed light through but obscured glass below head height still gave privacy. A heated mirror was used in place of a tile to allow the customer to shave in the shower without a foggy mirror!

 

 
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A Classic Victorian Make-Over

 

This south London project was a full interior & exterior renovation and extension. The property was taken back to the brickwork throughout, before extending it to provide a spacious kitchen/dining room. Original features were re-instated including cornice, panelling, fireplaces, parquet flooring and built in cupboards. Bricks saved from removing one of the original chimneys were upcycled into the new extension giving it character and a link to the Victorian house.