Loft Conversion and rear dormer Wanstead E11, East London

Loft conversion with rear dormer extension located in Wanstead E11, East London.

The original property was a 2 storey period terraced family house with rear out-rigger and rear garden. The stair was extended up to the loft level. A roof window and large trapezoidal rear window to the stair provided lots of daylight to the interior and view out. Glazed steel framed fire rated internal doors provided high quality fittings and a contemporary feel to the interior. Generous glazed sliding full height doors with a glass balustrade allows the loft space to be fully opened up in the summer months and provide lovely views over the rear garden.

Private client, completed Summer 2021

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Lansdowne Drive, Hackney E8 Side infill kitchen extension

This is a side infill kitchen extension project in Hackey E8, London Fields.

The original property was a 3 storey period terraced single family house located within the Broadway Market Conservation Area. The property and terrace back onto London Fields.

The proposal is a side infill extension at the rear to open up the existing small rooms to provide a large open plan kitchen & dining space that is open to the rear garden with good access and levels of daylight.

The extension is set at a lower level than the rear garden to align with the existing ground floor level. This reduces its height along the boundaries and avoids any detrimental impact on the neighbouring properties whilst aligning the ceiling of the proposed extension with the existing ceiling and providing for a good floor to ceiling height.

The extension external walls are built from yellow stock facing bricks selected to match the existing brickwork in appearance and bonding with brick arches and slim steel framed double doors opening to the rear.

A large roof window provides good daylight to the kitchen.

Private client, completed Autumn 2019

Kitchen extension Hackney East Londonkitchen extension architects E8 E5kitchen side infill extensionhardcastle architects east londonextensions hardcastle architects hackneyroof glazing rooflight architect hackney

Rear extension in Conservation area Hackney

A discreet dark grey zinc 2nd floor extension was added to the rear of a Victorian terraces house. The house was located in the Clapton Square Conservation Area in central Hackney. The rear was visible from the St John’s Church churchyard nearby, thus the extension was designed to be visually discreet and sensitive to its surroundings.

Completed August 2019

archtiects east london residentail extensions

Mansard roof extension & terrace Glenarm Road, Lower Clapton E5

No. 127 Glenarm Road is a 3 storey end of terrace property located near to the junction with Chatsworth Road.

The existing roof is a ‘butterfly/London roof’ with central valley gutter and front parapet typical to the victorian housing stock in the area. Hackney planning have a policy to generally resist mansard roof extensions.

The householder was keen to extend the house upwards to create a master bedroom with ensuite and external terrace.

We set the front of the mansard back to minimise visibility from the street and to provide a small external front roof terrace. The front was fully glazed with sliding doors providing access to the terrace, good views out, and daylight to the new bedroom.

Planning approval was successfully negotiated and approval granted August 2019.

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Mansard roof extension E5 architects


Mansard roof extension east london

Listed building & planning approval Clapton Square Conservation Area

19 Clapton Square is a late Georgian/Regency period house constructed circa 1816. The property is grade II listed and situated within the Clapton Square conservation area. It is the end house of a listed terrace of houses along the west side of the square.

3 storeys, attic and basement, 2 windows. Slated hipped mansard roofs with dormers. Stock brick with stone-coped parapet. Gauged brick arches, round in round-arched recesses on ground floor and flat above, to sash windows with glazing bars. 1-storey stuccoed entrance links, with cornice and blocking course, at either side.

The householder wanted to carry out various repairs and improvements to the house, including replacing a small existing rear window with a new inward opening pair of glazed doors and a discreet painted metal balustrade to provide additional daylight and openness to the room.

Planning and listed building consent was successfully negotiated with Hackney planning and granted August 2019. Work is due to commence shortly.

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Milton Grove, Stoke Newington N16 Period town house refurbishment & extension

Milton Grove is the refurbishment and extension of a four storey period terraced town house. Milton Grove is a quiet residential street in Stoke Newington N16 to the south of Clissold Park.

The existing house has a lower ground level with its own front entrance and access to the garden at the rear. As existing this floor was used as bedrooms. The upper ground floor is the main entrance level with kitchen and dining. The upper floors as existing contained the main living room and bedrooms.

The house was re-organised and extended at the rear to create a large open plan family kitchen/dining and living space at the lower ground level with open level access to the rear garden and terrace.

The upper ground floor was used for formal dining and reception. A compact and discreet food hoist was added between the kitchen below and formal dining room above.

The two existing bedrooms at 1st floor level were combined to create a large master bedroom with dressing room and ensuite.

The house was refurbishment throughout, with new re-wiring and plumbing and under floor heating to the lower ground floor family space and bathrooms.

All the internal walls were re-plastered and ceilings replaced where necessary. The timber flooring boards in the formal upper ground floor were restored and lacquered and all 2nd fix joinery was replaced. Bespoke joinery bench seats, wardrobes, storage units and a TV wall were built-in around the house.

Completed July 2018

Residential refurbishment terraced period houseRefurbishment living room period house Kitchen extension roof window daylight garden Family bathroom marble tiling shutters Ensuite bathroom marble roll top bath shower screenRear kitchen extension garden terrace cedar screening

Park Grove Road, Leytonstone E11 Rear kitchen/dining extension

The client’s needed more space for their growing family in this two storey terraced house in a quiet residential street in Leytonstone. An existing rear addition was removed and the rear of the house was extended and opened up to create a large open plan kitchen and dining space.

A large ‘L’ shape glazed roof window provides lots of natural light deep into the space.

A new chimney breast and period fireplace was added to the front living room to provide focus to the room. Built-in joinery storage was provided to either side of the chimney breast with open shelves and base cupboards and space for the TV.

Private client, completed spring 2018

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Elderfield Road, Clapton E5 New house on infill site

Planning approval has been granted for a new 3 bedroom house in Lower Clapton, East London. The house occupies a vacant site at the end of a large garden adjacent to an end of terrace Victorian house. The new house is contemporary and designed to sit comfortably in its context. The ground floor is open plan living space with access to two glazed courtyards and filling the footprint of the site. A smaller rectilinear two storey pre-patinated copper clad upper element sits above and contains the bedroom spaces. Construction is planned to start on site in 2019.

Private client. Planning approval granted March 2018

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Powerscroft Road, Lower Clapton E5 Side kitchen return extension

Hardcastle Architects were appointed to design a side return kitchen extension to this large Victorian terraced house in Lower Clapton, East London.

A new steel structural frame was installed to remove the existing side and rear walls of the kitchen. This provided a much larger open plan kitchen with space for a large dining table, some soft seating, a WC and small utility room.

The majority of the side extension roof over the dining table was glazed to ensure the kitchen and rear reception rooms enjoyed good levels of natural light.

The garden elevation was fully glazed with a minimally framed sliding glass door screen to provide open views and access out into the garden.

Private client. Completed 2014

Hardcastle Architects Hackney E5
Hardcastle Architects Hackney E5Hardcastle Architects Hackney E5Hardcastle Architects Hackney E5 Hardcastle Architects Hackney E5

Tranby Mews, Clapton E5 Contemporary roof top extension to existing mews house

This project is a roof extension to add an additional floor to an existing private mews house (circa 1980).

The existing mews house is a two storey white painted rendered semi-detached dwelling with a similar pair of dwellings set immediately behind to the east. The homeowner has lived in the area for a number of years. He likes the area and the house and is keen to stay, but requires additional space to make the property suitable for his current needs.

It is not possible to extend the property outwards. The adjacent buildings to the south and west are three storeys and taller than the existing dwelling and it is proposed to extend upwards with a new contemporary ‘mansard like’ roof top extension.

The roof top extension is set back behind the existing front and rear parapets. Its facades are purposefully angled and faceted in response to the adjoining buildings and overlooking windows.

The dark metal finish with angled back facades gives the appearance of a secondary ‘roofing element’. The contemporary design enhances and contributes to the existing dwelling and surroundings, and is visually comfortable as an element in its own right and as an addition to the existing building.

Private Client. Planning approval granted at appeal Jan 2018.

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Kitchen extension and new bathroom Bow E3 East London

The refurbishment and extension to an early Victorian mid-terraced house, located in a conservation area. Planning approval for a rear single storey extension was achieved to extend the kitchen to include a dining/living space. The extension is contemporary in style and designed to contrast with the original house. The elevation overlooking the garden is fully glazed with folding/sliding doors, the roof is zinc with a large central rooflight. The existing side masonry wall was fully opened up and the kitchen fitted out to create a single large family space.

The bathroom was relocated. It is compact but well laid out for functionality and ease of use. The finishes are hard wearing porcelain tiles to floor and walls. The basin and toilet are set into a simple cabinet to hide away the plumbing, easy cleaning, and provide additional storage.

Completed 2009


Loft Conversion, East London Walthamstow E17

Loft conversion with rear dormer extension recently completed in Walthamstow E17, East London to create a master bedroom space with ensuite. Loft conversions are a cost effective way to extend a house if the existing roof is suitable and the ridge high enough. For this project the loft floor and ceiling to the 1st floor bedrooms below had to be lowered as the existing roof space was marginally too low. A full width dormer extension carried out under permitted development rules was added to the rear and a certificate of lawfulness secured (to avoid potential future conveyancing problems). A large window and rooflight together with light coloured finishes provide a well lit and pleasant space to use.

Home owner client. Build cost £30k.

Loft conversion east london architect

Powell Road, East London New mixed-use office/residential development, Hackney E5

This new-build mixed-use project provides a mix of 1, 2 & 3 bedroom dwellings over 3 floors to provide 4 no. dwellings and a separate B1 business unit at ground floor level on a restricted urban infill site. All dwellings have been designed in accordance with the GLA Housing Standards SPG and Lifetimes Homes Standards. The ground floor dwellings has been designed to be fully accessible for wheelchair users.

The existing site is used for car repairs and is not appropriate for the location surrounded by residential properties and gardens. The site is in a poor state of repair and it has not been possible to secure the necessary investment and long term tenancy to avoid further decline. The site is more appropriate for residential use and will provide 4 much needed dwellings and a new business unit within Hackney.

The main building is set back from the footpath to align with the adjacent terrace. The front gardens provide a secure buffer zone to the frontage similar to the adjacent terrace. The front living spaces and balconies looking out onto the street contribute to the passive surveillance that already exists along the street. Low railings with climbing plants provide the enclosure along the front. The private frontages are provided to each of the ground floor dwellings separated by the common entrance. All of the dwellings are entered via the common entrance door. The door is glazed for good visibility, and set back to provide shelter from the weather.

Planning approval was secured in 2017.

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House re-modelling, East London Terraced house in Hackney E5

The existing house is a period 4 storey terraced house in Hackney East London. The householder approached us to re-model the entire house suitable for contemporary city living. A number of proposals were looked at re-organising the house to various extents. The final proposal shifts the stair to the rear rising through a full height lightwell using screen printed glazing to filter views and daylight in and out. A top floor solarium is added with external terrace for private city sun bathing during the summer months. All of the interior is fully re-modelled and contemporary in style to suit current lifestyles.

Private client

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Architects design studio Basement conversion, Hackney E5, London

This is the excavation and conversion of an existing basement storage area below a Victorian terraced house in Hackney, East London. The basement was excavated to achieve sufficient head room and new structure installed to the support the house above. A drained cavity membrane and pump system was used to ensure the basement was fully waterproof. A new front lightwell and rear window provide a good level of daylighting and views out augmented with uplighters washing the walls and ceiling. A cement based wearing screed with underfloor heating was used for the floor finish. The studio was fitted out with bespoke built-in perimeter desking, storage wall and kitchenette.

Completed Jan 2013.

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Yafforth, North Yorkshire Domestic residential extension

An existing traditional  detached house located in a small village near to Northallerton (North Yorkshire) was too small for the growing family. The householder is a well known interior design professor and has collaborated with Hardcastle Architects on previous projects around London. The side extension consists of two cubic forms that offset from each other and the original house and are clad in horizontal timber strips. The form, openings, glazing, and material treatment were developed to both contrast and engage with the original traditional rendered and pitched roof house. Extensive consultation with the local community and local planning department was carried out to ensure the planning process was successful.

Planning approval was submitted July 2015 and approved within the 8 weeks statuary limit. Construction is due to commence shortly.

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Massie Road, Hackney E8 Pair of urban houses on infill site in East London

This is a new development for two new houses on an existing site of 4 disused garages. Nestled to one side of a quiet cul-de-sac, close to London Fields in central Hackney E8, East London.

The massing is in response to the restricted nature of the site bounded on three sides by existing dwellings and gardens.

Two houses are provided with a lower ground level for the bedrooms and bathroom. The open plan living accommodation and terraces are at ground and 1st floor. Generous lightwells provide daylighting and ventilation to the rooms at the rear and lower level. The front is set back from the street to provide a gated private space for entry, refuse and cycle storage.

A set of plywood stairs climb beneath a roof light to the top floor space which can be used as a bedroom or study/work space. Sliding glazed doors open to a balcony with timber decking and larch cladding.

A warm coloured robust facing brick is used at ground level for durability. Larch cladding is used at the upper floor to alleviate the massing and respond to the adjacent gardens. The roofs are covered in sedum to provide some natural habitat on the site and for looking onto. Photovoltaic roof-panels contribute to the home’s energy requirements.

Private developer client. Completed 2013


hardcastle-architects-dwellings-east-london New contemporary urban dwellings hackney E5 New contemporary urban dwellings hackney

Haus Sorge, Nürnberg Contemporary private house, Germany

This is a collaboration with In.kognito Architektur for a private house on the outskirts of Nürnberg. The design responds to the clients particular requirements and to house part of their growing art collection. The house is organised around a double height central glazed courtyard with tree that is open to the outside. The living spaces are open plan arranged around the glazed courtyard at ground level, with bedrooms, studio and guest room at 1st floor, and a basement level for storage, services and a fitness room. Durable natural materials – timber, concrete, stone, glass – are used throughout.

Private client. Completed July 2015.

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internal stairs cantilevered concrete    hardcastle architects timber strip cladding

Mahe, The Seychelles Hillside house with ocean view

The client owns a plot on a steeply inclined mountainside site approximately 350m from the beach front. The primary views are out into the Indian Ocean towards an Island to the northwest. The client approached us to design a family house with guest accommodation. A number of different designs were prepared during the scheme design stage. This design is part open plan and part cellularised with the living accommodation on the top floor and the sleeping and guest accommodation below. The design uses a series of planes to define the enclosure with daylight and sun penetration carefully controlled using a series of louvred sliding panels.

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