Welcome to Lex McMillan Architects, an award winning architectural practice based in Hammersmith, London, with additional offices nestled in picturesque North Dorset. Led by the expertise of Lex McMillan (DIPARCH RIBA ARB), our team possesses an impressive wealth of knowledge accumulated over many years in the field.

Established over 15 years ago and with a varied portfolio spanning across Dorset and Hampshire as well as prestigious areas of West London including Notting Hill, Kensington, Chelsea, and Belgravia, we take immense pride in delivering exceptional projects. Our expertise also extends to high-end retail and office refurbishments, boasting an extensive background in commercial retail and hospitality design.

From one-off house commissions to large-scale commercial ventures, our dedication to excellence remains unwavering. We are also specialists in renovations, historic and listed building work, and bespoke countryside residences, pursuing every opportunity to breathe new life into architectural treasures while preserving their unique heritage.

Al Lex McMillan Architects we constantly strive to harmoniously blend design brilliance and history with innovation. Let us be your partners in crafting thoughtful and considered spaces that stand the test of time and embody the epitome of architectural sophistication.

For personal and commercial architects in London and new build and home renovation projects throughout Dorset, Hampshire and Wiltshire, choose Lex McMillan Architects for visionary designs that inspire and endure.

Below is a small selection of recent work. Please get in touch to discuss your next project, we would love to help.


Established in Brook Green in 2008, we have built a reputation with expertise in housing and residential renovations. We have over seen a number of high-end retail and office refurbishments and have extensive experience in commercial retail and hospitality.

Since opening our North Dorset office in 2019, we have expanded our portfolio, to include:

Home renovations, Historic buildings, Listed buildings, Bespoke countryside houses, High-end retail, Office refurbishments, Commercial retail, & Hospitality design

Situated in the vibrant heart of London, our Hammersmith office offers an ideal base to lead projects throughout central London and the outlying areas. 

Lex leads both teams in providing a full range of architectural services from initial planning and concept design through to completion.