Architecture · London
nimtim architects
We are a practice who want to make and talk about architecture in a different way. Our work is about people and the stories and ideas they bring to the projects we make together. We create buildings that reflect the personalities and values of the people and communites that will live, work or play in…
Overview
Inside the practice.
Key facts about the practice, its work and working life.
- Base
- Unit 1, 17–19 Blackwater Street, London SE22 8SD
- Regions
- UK - England - Greater London
- Sectors
- Residential (High-end)Residential (Private Homes)Retrofit
Flagship projects
Work worth spending time with.
Three projects are selected for this profile. Explore the project directory for more.

Photography: Megan Taylor. Courtesy of nimtim architects.
Hemp House
A domestic rear addition that uses timber and hempcrete to support flexible family life and a low-carbon brief.

Image courtesy of nimtim architects. Photographer not named on the captured project page.
Cork House
A South London Victorian terrace extension and loft conversion shaped around a stepped internal landscape and natural cork.

Photography: Jim Stephenson. Courtesy of nimtim architects.
Supper Time
A low-impact infill extension links kitchen, garden room and garden through a flexible dining thread.
About
About nimtim architects.
nimtim architects is a South London practice founded in 2014 by Nimi Attanayake and Tim O’Callaghan. Its architects, landscape and interior designers create distinctive spaces shaped by the people who will live, work, learn and play in them.
The practice develops projects through dialogue and co-creation, using its own briefing game, workshops and engagement events to understand needs and test possibilities. Its residential work explores reuse, colour, natural materials and connections between homes and gardens.
Culture
Inside the studio.
A closer look at studio life, development and working patterns.
An approachable and diverse team, with collaboration, mentoring, school outreach and community engagement forming part of its published approach. The practice encourages clients and building users to contribute directly to the design process.
People & conversations
Follow the connections.
1 person · 1 podcast episode · Practice video
Podcast · Episode
Running an Architecture Practice Isn't What You Think
In this episode, Stephen sits down with Tim, co founder of nimtim architects, a design led practice based in South London.Tim shares his journey from working in traditional practice to unexpectedly starting his own studio, building it from a kitchen table with no clients, no roadmap, and no clear plan.This conversation goes beyond projects. Tim goes into what it actually takes to run an architecture practice, from business realities and hiring, to fees, profit, and the challenges of delivering g
This YouTube video needs media cookies to play here.Enable videos and podcasts, or accept all optional cookies.
Your choice is remembered across the site. Change it any time.
Contact
Find out more.
- Website
- nimtim.co.uk ↗
- Studio
- Unit 1, 17–19 Blackwater Street, London SE22 8SD
- Email & phone
- Reveal contact detailsDirect contact details Sign in to viewAvailable below
- Social
Contact
Contact details protectedEmail, phone and website stay blurred until you create a free account.
Start a discussion
Member discussion
Log in to see and discuss
Comments stay with registered members — like a private conversation on a public page. Bodies are never shown without an account.
Something wrong with this listing?
Tell us if it is inaccurate, not genuine or a concern. Our team reviews every report.
