HA-EY | HA-EY.co.uk

HA-EY is a design-led Architecture and Structural Engineering practice based in London

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Planning permission has been granted for our latest residential project in Dulwich.

The proposal involves the sensitive extension and retrofit of a prominent Victorian corner Villa property, including the retention and thermal upgrade of the existing conservatory alongside a modest rear addition. The design draws upon the architectural language of the existing house through a contemporary interpretation of arched forms, traditional proportions and a restrained material palette.

Developed in response to the site’s prominent dual-frontage condition, the scheme seeks to enhance the relationship between the interior and garden while improving the overall environmental performance and quality of family living spaces.

Continuing this approach at ground floor.

A new garden-facing extension opens up the plan into a more continuous, light-filled space while the existing house is retained and read as a distinct layer.

The extension is conceived as a lightweight timber structure, with expressed loadbearing elements.

Planning permission secured in Greenwich.

Planning permission granted for our next project in Greenwich.

Working within an Eric Lyons-designed Span estate in Blackheath, the proposal carefully reworks an existing house: opening up the plan and strengthening its relationship to the garden, in keeping with the original ethos of light, space and landscape.

Progress in the rain.

Works are well underway in our timber frame extension on the hill in Brightling Road.

Excited to announce our project in Hackney has been granted planning approval.

We’re helping our clients transform a long-term empty house into their ideal home for their young and growing family, contributing to the rich and diverse fabric of the neighbourhood.

Our design introduces a series of extensions at ground, first, and loft level with internal reconfigurations and structural interventions. Drawing from Belgian Modernism and influences from the New Zealand Christchurch style, the scheme combines London stock brick, quarry tiles, and red-lacquered timber, with red oxide metal detailing to bring new life to a once-vacant property while respecting its Victorian character.

#planningapproved #haey #londonarchitecture #hackney #residentialarchitecture #houseextension #loftconversion #designandaccess #architecturelondon #neighbourhoodrenewal

Highlights of our trip to this year’s @marmo_mac in Verona to see, touch and source Marble and Stone from the finest crafts and quarries in Europe and the World.

An Enduring Continuity

Dulwich Wood integrates seamlessly into the existing terrace. Its brickwork, proportions and rhythm extend the established streetscape, carrying forward the architectural language of the estate with precision and care.

Visuals by @t.a.n.d.e.m.s.t.u.d.i.o.s

#HAEY #ContextualDesign #SustainableArchitecture #LowCarbonDesign #MidCenturyModern #DulwichWood #LondonArchitects

Continuing the Legacy.

This new home in Dulwich carries forward the architectural language of the neighbouring 1960s Dulwich Estate terraces.
Referencing the celebrated Halen Estate, it picks up on familiar forms like buff brick coursing, timber porticos and projecting bays, while refining them with quiet clarity.

The design fits naturally within its context and moves the conversation forward through a series of low-carbon changes, such as CLT framing structure and passive heating systems to enhance performance and sustainability.

Visual by @t.a.n.d.e.m.s.t.u.d.i.o.s

#HAEY #ContextualDesign #CLTArchitecture #SustainableArchitecture #LowCarbonDesign #MidCenturyModern #DulwichWood #TimberConstruction #EmbodiedCarbon #InfillHousing #LondonArchitects #ModernismReimagined

A Low-Carbon Re-imagining of Mid-Century Modern in Dulwich Wood

We’ve designed a new home in Dulwich as a continuation of the language of the area’s celebrated 1960s terraces. Inspired by the influential Halen Estate near Bern, a benchmark of Mid-Century European modernism.

Respecting the scale, rhythm, and materiality of its neighbours, our design reinterprets key elements of alternating buff brick coursing, projecting bays, timber porticos, with quiet precision and care.

Behind its familiar façade we’ve shifted the structural strategy using a full Cross Laminated Timber (CLT) structure, dramatically reducing embodied carbon, improving thermal performance, and creating warm, highly performing spaces.

Our goal was to create a contextual architecture, to not just fit in but to lead on sustainability.

A quiet reinvention, rooted in place, guided by history, and built for the future.

#HAEY #CLTArchitecture #LowCarbonDesign #MidCenturyModern #HalenEstate #DulwichWood #SustainableArchitecture #TimberConstruction #ContextualDesign #EmbodiedCarbon #ModernismReimagined #InfillHousing #LondonArchitects #ArchitectureForChange

Antrobus Road, Chiswick
Concept render for our recently completed townhouse project.

When the Clients first approached HA-EY, they shared a familiar dilemma: they loved their street, but needed more space to grow—without compromising the garden they cherished.

Our brief was clear—maximise internal living space while preserving and enhancing outdoor amenity. Detailed analysis of daylight and sunlight was undertaken to carefully determine the extension’s limits, ensuring no adverse impacts on neighbouring homes or gardens.

Through a contemporary reinterpretation of the local brick vernacular, we introduced a series of stepped terraces topped with GROW-rated native wildflower roofs—expanding the footprint by over 50%, greatly increased biodiversity and allowing our Client’s to stay in the community that they loved.

Visual by @t.a.n.d.e.m.s.t.u.d.i.o.s

#HAEY #Architecture #StructuralEngineering #Chiswick #TownhouseExtension #UrbanLiving #DaylightAnalysis #GreenRoof #BiodiversityByDesign

We Made This:

Thank you to everyone who joined us at last night’s @kent_arch end-of-year show. It was a privilege to share our latest timber bridge model, developed and built in collaboration with our students, and to see such a strong body of work across the school.

Next, the model will travel to the River Derwent for display and conversations with the local community. This forms part of our ongoing work on the proposed Derwent Valley Cycleway @derwentvalleycycleway —a route designed to connect people with the landscape, its industrial heritage, and vital ecological systems.

Our recent split beam girder bridge prototypes explore new potentials in timber construction through careful design, testing, and making. By looking to historic typologies and applying modern engineering insight, our research aims to advance sustainable, locally built timber infrastructure.

#Architecture #Engineering #BridgeDesign #TimberConstruction #SustainableInfrastructure #DesignResearch #CommunityEngagement #derwentvalleycycleway

Bennerley Timber Footbridge: Advancing Sustainable Design Through Innovation and Heritage

Currently in Planning the Bennerley Timber Footbridge will be the next Case Study Bridge from HA-EY and Yee Associates’ ongoing research into timber bridges and Lenticular Split Beam Girders. Spanning the River Erewash beside the historic Grade II listed 1878 Bennerley Viaduct, the project will unite sustainable innovation with industrial heritage.

Supporting The Friends of Bennerley’s new wildlife corridor beneath the viaduct, the bridge will improve access between the Nottingham and Erewash Canals—offering a unique way to experience the local landscape and the viaduct’s intricate latticework.

Built with locally sourced timber and assembled with the help of student volunteers from the University of Kent, the footbridge will serve as both a hands-on learning opportunity and a model for low-carbon construction.

More than just a crossing, the Bennerley Timber Footbridge will enhance local connectivity, promote sustainable design, and create lasting educational and environmental value.

Collaborator: @geen_gok_yee
@bennerleyviaduct
Visualisation: @t.a.n.d.e.m.s.t.u.d.i.o.s

#SustainableDesign #BennerleyFootbridge #TimberEngineering #LowCarbonFuture #EcoArchitecture #HeritageAndInnovation #StudentBuild #GreenInfrastructure

Internal cut aways in Walthamstow.

The integration of a GRO rated meadow flower roof encourages local pollinators, reduces heat loss and helps to moderate the wider heat island effect in our cities.

#midcenturymodern #midcenturydesign #warmminimalism #naturalmaterials #tactiledesign #modernliving #designdetails #interiorarchitecture #designmatters #architectsjournal #walthamstow #eastlondonhomes #HAEY #HAEYHome

Interior views from our Walthamstow project.

By opening up the hallway and kitchen, we’re creating clear sightlines that deepen the family’s connection to the garden, drawing light and nature into the heart of the home. A warm, natural material palette softens the interiors, fostering a tactile sense of connection.

#midcenturymodern #midcenturydesign #warmminimalism #naturalmaterials #tactiledesign #modernliving #designdetails #interiorarchitecture #designmatters #architectsjournal #walthamstow #eastlondonhomes #HAEY #HAEYHome

Delighted to have received Planning Approval for our Walthamstow project.

By reworking the ground floor layout and extending to the rear, we’re reconnecting the home with its garden — creating a stronger flow between indoors and out.

A soft mid-century modern palette: milky lime plaster, dark cedar timber, and a cast in-situ Jesmonite facade — designed to offer lasting visual and tactile richness for a growing family.

#refurb #refurbishment #design #archilovers #architect #architecture #modern #modernhouse #design #dontmoveimprove #walthamstow #london #renovation #extensions #detail

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HA-EY is a design-led Architecture and Structural Engineering practice based in London To talk to us about a project get in touch

NEW WEBSITE COMING SOON

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HA-EY is a design-led Architecture and Structural Engineering practice based in London

To talk to us about a project
get in touch