Why could we help your dream project come true



Knox & Clayton is a long established architectural practice located within the city centre of Lisburn.


Jiradej Ermongkonchai (Pow) and Lawrence Power are the current partners and head up this design orientated firm. Both partners are member of the Architect’s Registration Board (ARB) and the Royal Institute of British Architects (RIBA) which are symbols of “professional excellence”.


The partners are supported by a skilled support staff of 20 professionals. Knox & Clayton Architects is an award winning firm providing both domestic and large scale projects throughout the UK. Our sole aim is to provide creative, innovative and sustainable design solutions that meet with client objectives and deliverables.


More recently we have added a number of one off bespoke houses and extensions to our growing portfolio and understand the key relationship between architect and client in providing a successful construction solution.


Key advantages of a domestic client employing Knox & Clayton Architects:



Working with an architect is a working partnership and communication is a two way process between the architect and client. Each of our domestic projects are controlled by a partner and an individual architect so clients can liaise consistently with the same personnel at each different stage of the project. This promotes a personalised service, allowing interaction with both the clientaspirations/in tandem the architect’s technical expertise.

Undertaking a new house or home improvement project whatever the scale can be a daunting experience. We provide a full architectural service from inception to completion including statutory approvals such as planning and building control. We understand construction projects can be stressful, however through our two-way communication strategy the stress can be eliminated.



Our firm has the latest 3D software through Building Information Modelling (BIM) and Sketch Up. This software allows our clients to interact in the building design through 3D visualisation.



With sustainability high on the agenda for all domestic projects, Knox & Clayton Architects are keen to incorporate sustainable construction methods into their designs. Through improved energy performance and new sustainable materials on the market we can provide value for money within the building envelope by reducing running costs, for individual domestic clients.


Make the most of your space

Our architectural design solutions can make the best use of your space to suit individual lifestyle requirements. Our innovative team of designers can plan solutions for spatial requirements that will allow your “house to become a home”.


Project management and budget

We take a sensible approach to budget, setting firm and realistic costs with allowance for contingency. We have a working relationship with an established quantity surveyor to set budget costs for domestic projects, therefore there are no surprises with costs.

We also provide project management services from inception to completion to ensure the client’s objectives and deliverables are met. We would welcome any queries in relation to our services and please feel free to contact us to discuss any domestic related project.

Des Clayton Retirement

Des & Cake

With 32 Years at Knox & Clayton behind him Des Clayton has retired.

A smooth transition is planned. Knox & Clayton will continue with Pow and Lawrence as Partners. As before they will be ably assisted by Philip Cullen (Director), Paddy Carlin (Associate) and their highly motivated and enthusiastic staff who bring a wide range of individual talents to the organisation. Following his retirement as Partner, Des will continue to contribute to Knox & Clayton in a Consultant role, so you can expect to see him from time to time.

We wish Des all the best in his Retirement!! 

Bloom Festival 2016

Bloom Festival 2016


James Purdy member of Knox and Clayton Architects is delighted to have taken part in the Bloom Festival for the very first time. After all his hard work he put in he won two awards! Overall Medium Garden Category and Best Plant Design,for his "Podscape Garden".


While James was down in Dublin at the Bloom Festival he had the privilege to meet the President of Ireland, Michael D. Higgins and along side him his wife Sabina Coyne.

Commencement of Grovetree House, Belfast

Knox and Clayton are starting work on a new dementia friendly unit.

Knox and Clayton Architects are commencing construction of a new Dementia Friendly unit for Clanmil Housing Association. The site for the new development is located at the junction of Cullingtree Road and Grosvenor Road, Belfast.


Knox and Clayton Architects have recently won another a high profile Supported Living Dementia Friendly Project.  We have extensive experience in Dementia Design and have recently completed The Dementia Design School in conjunction with Dementia Services Development Centre.


This is a innovative design in relation to Dementia and we hope this will become a flagship for Dementia units in the future.



Opening of the new Cranmore Playgroup

Opening of the new Cranmore Playgroup

Lawrence Power was delighted to be invited to the opening of the new Cranmore Playgroup Facility, designed by Knox and Clayton Architects.



The building was officially opened by Daniel Lawton (US Consul General) and Trevor Ringland MBE, other guests included Junior Ministers representing the Office of First and Deputy First Ministers, Emma Pengelley & Jennifer McCann respectively.

New Development at Hass Road Dungiven

New sod cutting at hass road


Social Development Minister Mervyn Storey MLA recently cut the first sod at a new £2.2million social housing scheme at Hass Road in Dungiven. 


Lawrence Power, Knox and Clayton Partner attended the sod cutting on behalf of the company. Knox and Clayton Architects are delighted to be involved in this new development which is being funded by the DSD and Apex Housing.   It will provide 19 new family houses and apartments, including two specially adapted homes for wheelchair users. The scheme is being built on former Northern Ireland Housing Executive land adjacent to Ard na Smoll estate with construction work being carried out by the Kevin Watson Group. The development is scheduled for completion in October 2016. 


Martin Doherty, Chairman of Apex Housing commented: “Apex is delighted to have started construction on the second phase of our development at Hass Road, Dungiven. This is a £2.2million investment in 19 new build family homes by the Department for Social Development and Apex. This will provide much needed housing for families who may be living in difficult circumstances and create much needed employment opportunities for the hard pressed construction sector in Northern Ireland.”


New Staff Member

New Staff Member


Knox and Clayton are pleased to introduce our newest member of staff.


Laura McIlwrath has recently joined Knox & Clayton to complete her post Part One Architectural work experience. We congratulate Laura on the recent completion of her Part 1 degree at Northumbria University where she graduated from their Bachelor of Architecture course.


We are excited that Laura has chosen to complete this next stage of her education with us.


Knox and Clayton have a long tradition of employing part 1 and part 2 architecture students believing that it is important for practices to aid in the professional progression of aspiring young Architects.


We hope Laura enjoys her time with the firm.

Construction gets underway at North Queen Street

Sod Cutting


2.5 Million redevelopment of Ex-PSNI station reaches next stage


A Milestone in the construction of a new social housing scheme at North Queen Street has recently been reached when the Minister for social development Mervyn Storey joined Apex Director of procurement Ray Forbes and Knox & Clayton’s Des Clayton in a sod cutting ceremony

Knox and Clayton are very pleased to be working with Apex housing Association in regenerating this brown field site and the construction of 26 new social housing units. Construction is due to last until the Summer of 2016.

The Garden Show Ireland 2015 - Gold Award

Garden Show Winner



The Garden Show Ireland 2015 Gold Award was won by James Purdy. James is not just a young talented architect but also a gifted individual when it comes to garden design. Here is the brief that he submitted and carried it through;


‘The design intention of this garden is to take the natural elements that make up a woodland and reconfigure them in to a contemporary urban garden.


To achieve this, the key elements of colour, texture, height and sound present in a woodland were manipulated and reintroduced into the garden to create a series of defined formal spaces. Within each space contrasting textures and colours have been positioned to provide points of interest as you pass through the garden towards the sound of water falling, present at the journey’s end.


Planting of the garden was based upon plants of a woodland origin and plants which contained the selected colour palette of whites, purples, yellows and greens. This colour palette further enabled a visual contrast of colour to be achieved both within the garden and against the dark backdrop of the vertical timber cladding.


The overall effect of the garden is to take the language of the ordinary and alter it to create a series of interesting spaces that connect with the uses in a strange but familiar way.’


Congratulations James.

Richard Watson

Picture of Richard Watson

Congratulations to Richard who recently was awarded membership of the Chartered Institute of Architectural Technologists (CIAT).

Catriona O’Loughlin

Picture of Catriona O’Loughlin

Congratulations to Catriona who recently completed the Association for Project Safety’s course in “The Management of CDM Co-ordination”.

Aaron Shannon

Picture of Aaron Shannon

Congratulations to Aaron who recently qualified, completing his RIBA Part 3: Postgraduate Certificate in Professional Practice in Architecture.