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THA was founded in 2002 by Timothy Harris.

Initially specialising in carefully designed private houses, the company has expanded to include chateaux, apartment blocks and holiday complexes.


It has established a reputation for realising projects in particularly sensitive environments.

This includes Unesco sites, conservation areas, working with listed buildings and national monuments.


The primary tenet is that powerful architectural concepts can reconcile conflicting interests with diplomacy to produce highly responsive buildings.  A deep understanding of the demands of all parties is the seed from which real architecture is generated.


The underlying philosophy of THA is the creation of a sustainable architecture.


Over the years we have developed project management processes which enable our clients to be fully involved and make informed decisions every step of the way.

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Tim Harris developed a passion for Architecture from an early age and won a national design competition at 19. He went on to study architecture at Edinburgh University and qualified with an MA specialising in renewable energy and intelligent buildings, followed by a diploma in Architecture.

Tim has worked in architectural practices in Sidney, Belfast, Paris and London, before setting up his own in 2001.

He has run projects varying from hospitals and supermarkets to housing developments, as well as private residences with environmentally-friendly aspirations.


After qualifying in International Business at ESSEC Global BBA, Anne worked in leading Marketing and Advertising Agencies in central London, developing Strategic Marketing, Client Management and Business Management skills.


At THA she generates and implements the marketing strategy for the company. 


The Client Services are developed with skills and processes used with top banking, consumer, charity and B2B Clients. This has developed a working method for THA that ensures the client is informed, involved and in control of the project from inception to completion.

The simplicity and clarity of which creates stability to enable sound decision making.


Nasir studied Architecture in The Netherlands.

His previous experience included BIM co-ordinator for Richard Rogers Architects in London and as a technical support engineer for the major leading architectural practices across Europe.


At THA he has introduced BIM (Building Information Modelling) systems and complementary software bringing the most advanced and efficient systems to the practice.


He has organised the computer network to enable working from decentralised offices and efficient interdisciplinary co-ordination.

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Florianne studied Architecture at Ecole Nationale Supérieure d'Architecture de Versailles, but also in Athens during a one-year Erasmus exchange.

she also won the Maison de l'Architecture Diplomas and Memories prize.

Passionate about ecological architecture and horse riding, she joined our team following her first professional experience in Paris.

At THA, Florianne takes active part in the design development and administrative management of projects, as Junior Architect.

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Julia studied architecture at Ecole Spéciale d'Architecture de Paris, where whe received her diploma with the Jury's congratulations. She worked in several Paris architectural agencies, as well as in New York, on art galleries and luxury residences.

Back in her native South-West France region she is once again enjoying her passion for horse-riding and more specifically dressage.

At THA, Julia brings her high quality design skills and experience, as well as her project management rigor, as Junior Architect.

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Lucie studied Architecture at Ecole Nationale d'Architecture de Versailles, including a term in Argentina at the Cordoba Architecture Urbanism and Design University. Lucie joined us after working on public and private sustainable projects in Paris.

At THA, Lucie brings her enthusiasm for Sustainable Architecture and Climate Adaptation, as well as her creativity as Junior Architect, Project Assistant.


Amy joined our team as Administrative Assistant. After some professional experiences in the catering business, she successfully qualified in accounting and PAYE management. 

She enjoys being in the countryside with her family and her beloved dog.

At THA, Amy brings her perfectly bilingual assistance to the team and Clients with all administrative work.

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Emilie qualified fully as a practising Architect (Diplôme d'Etat and HMONP) from École Nationale Supérieure d’Architecture de Paris Val de Seine. She also trained as an expert in building pathologies as well as Site Administration. Emilie developped her architectural experience with the renovation and new construction of hospitals housing developments, offices and industrial buildings. Fully bilingual she has taken to restauring her own chateau to raise her family in.

Emilie brings to THA and your projects her practical and technical expertise mixed with pragmatic design skills.


Isabelle graduated from École Nationale Supérieure d’Architecture de Paris La Villette, which she completed with the HMONP at ENSA Lille. She was able to work and detail small and medium-scale wood construction projects, being particularly interested in an ecological approach to construction. In Glasgow, Isabelle enriched her experience by collaborating with a team of interior designers, which involved designing bespoke furniture, working on finishes and space planning strategies, as well as architectural work on more technical aspects.

At THA, Isabelle brings her conceptual and aesthetic expertise, added to her mastery of the timber as a material.

We have developped a network of specialised partners, with whom we work on a daily basis. They are Chartered Géomètres, BIM Architects, Construction Consultants, draftsmen, etc.


 This allows us to have the highest level of expertise for each given task in line with the project specifities and progression.


We fully comply with the Codes of Conduct from the RIBA and the Ordre des Architectes.

To consult these codes of conduct, please click on the relevant link below:

Tim Harris is a Qualified Architect from Edinburgh University, in Scotland, with an MA in Intelligent  Buildings.

He is registered with both the Royal Institute of British Architects and the French Ordre des Architectes.

Architectural Advice          Design Architect          Site Administration          Ecological Architecture
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