“We have worked with Moore and Joyce on two domestic extensions/renovations over the past 20 years. We found William Moore to be positively challenging and creative. He supported us in a collaborative and respectful manner in which his expertise and skill melded with our ideas and taste. We have recommended Moore and Joyce to many friends all of whom have had the same positive experience. We would have no hesitation in recommending Moore and Joyce to others .”

– Diarmuid Kearney

“Moore and Joyce made my house refurbishment project run very smoothly from planning to finish and I was most impressed by their efficient and professional service as well as their attention to detail. The house was completed on time and met the budget requirements and most of all the end result was fantastic
I would highly recommend this company to anyone wishing to build or redesign their property.”

– Denys Thompson

“I have used Moore + Joyce Architects on 2 projects – a new build house of 300 sq metres, the other a conversion of a Georgian basement into 2 x 1bed apartments. I have found William Moore to be a very inventive and practical designer who thankfully does take cost into consideration! Most of all,and unlike several other Architects I have dealt with on other projects, he listens to you, takes on board your requirements and concerns and consistently improves on your ideas. I also found him very ‘user friendly’ and easy to deal with.”

– Donal Ryan


Moore + Joyce Architects is a dynamic small-scale architecture firm based in Belfast, Northern Ireland. Professionally run by William Moore, Moore + Joyce Architects specialises in providing architectural design services tailored to meet the unique brief, requirements, and budget of any client.

With over 30 years in the architectural practice, William has comprehensive experience in contemporary and traditional architecture and has amassed an impressive portfolio of new build properties, extensions, conversions, and refurbishments for residential and commercial clients, each completed to an excellent standard.

He knows that taking on a new building project is a big expense for any family or company, and will work to provide you with a transparent quote and an affordably priced service sure to help you maximise your investment.
William is driven by his belief that good collaboration between the client and the architect lies at the heart of delivering a successful service, and strives to work closely with you to help translate your vision into a world-class finished product.

Regardless of your residential or commercial property needs, William will work tirelessly to provide you with a completed project that meets all your requirements. Get in touch today to see how he can help you.


At the start of each project, William offers each client a free, no-obligation consultation to discuss the ideas and vision you have for your project, and how he can meet your needs.

This consultation can take place on your property at a time that suits you, including weekends and evenings.



A development of 2 detached contemporary houses of 320m2 (3420 sq ft) each with 4 reception rooms and 5 bedrooms (2 ensuite).


A mezzanine floor was inserted and the building was opened up to make full use of the fantastic views over the city.


The rear of the property which faces south was extensively remodelled to open the downstairs to the patio and the low maintenance garden.