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A wealth of experience

We are an RIBA Chartered Practice with a wealth of experience working in both private and public sectors going back more than thirty years.

Residential development, for private clients, commercial developers and social housing providers makes up the majority of our work. Our portfolio also includes commercial, mixed use, leisure and arts projects, many of which also including conservation and heritage aspects such as on listed buildings.

From concept to construction

We are comfortable working on a broad range of project sizes and from concept and feasibility all the way through to construction, from small scale extensions and domestic refurbishments, up to large scale commercial development projects.

Private client work and high-end residential projects in London and the southeast are a strong part of the practice. We have a high profile in these sectors within London generally and in the Royal Borough of Kensington and Chelsea, City of Westminster, and in north London in particular.

Our work over the years has included many projects outside London across southern England, and further afield literally from Land’s End to John O’Groats.

A holistic approach to sustainability

We take a holistic approach to sustainability in our design, which we believe is best achieved through the collective effort of the client and design team in conjunction with the regulatory frameworks.

Our team

We are now three partners, Maha Phillips, Paul Lofthouse and Piers Carlisle, leading a team of architectural staff consisting typically of 6 or so people. Two founding partners, Stanley Haines and Mike Phillips, are now consultants to the practice.


Maha Phillips

BSc (Hons)

Maha Phillips is a founding Partner at Haines Phillips Architects, having previously been an associate at one of HPA’s constituent firms, Andrew Downie and Partners. Maha’s speciality is in central London high-end residential work. Her work in this sector encompasses prime residential projects for developers and private clients on new-build, refurbishments, extensions and internal fit-outs.


Paul Lofthouse

BArch DipArch RIBA

Paul Lofthouse has been at HPA since its inception, and Partner since 2018, having previously worked at one of our constituent practices, Andrews Downie & Partners. Paul has been responsible for a broad range of projects mainly in the residential development sector, for both developer and private clients, and have included refurbishment as well as new build projects as well as challenging mixed use schemes across London and the South-East.


Piers Carlisle

BSc (Hons) BArch (Hons) RIBA

Piers Carlisle has been at HPA since its inception, and Partner since 2018, having previously worked at both constituent practices. Piers has been responsible for overseeing a wide range of residential projects, both new-build and refurbishment, ranging in size from individual homes to much larger developments of 100 plus residential units as well as for our work on a number of major cultural and educational projects.

Our Clients

We have worked with over 500 clients since our founding in 2007. We are proud of the professional relationships we develop with our client base. We continue to work with many of them on a repeat basis on multiple projects and gain word of mouth recommendations from many historic clients for new commissions.

At Haines Phillips we are driven by our commitment to delivering an excellent service to our clients

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