OSTWERK

office information - issued to clients

a-100

Practice

Nine people in one room, six projects a year, and a way of working that puts the slow part at the front. This sheet is the one we send before a first meeting: who you would be working with, what happens in what order, what it costs, and what we decline.

1:100 the studio, in section

We draw first and are slower for it

Ostwerk is nine people in one room: seven architects, one structural engineer and one model maker. The engineer sits with us rather than being consulted at the end, which is why the sections on this site have real structure in them at the stage where structure can still change the plan.

Every project starts as a sectional drawing, before the plan. A plan answers how much; a section answers whether. How far daylight reaches into the lowest room, how much sound crosses a floor, how the structure stands and where the water sits - those are the questions that decide whether a brief is buildable, and they are all vertical.

It makes us slower at the start and considerably faster afterwards. Six projects a year is what nine people can do that way, so six is what we take.

the office - one room, nine desks, and the model bench in copper
(9) who is in the room

Ilse Brandt

Founding partner, architect

at ostwerk since 2014

Pieter Vos

Founding partner, architect

at ostwerk since 2014

Nadia Kerr

Associate, architect

at ostwerk since 2016

Tomas Leidt

Architect

at ostwerk since 2018

Ruth Emory

Architect

at ostwerk since 2019

Sam Ohara

Architect

at ostwerk since 2021

Joana Petrik

Architect

at ostwerk since 2023

Elin Rask

Structural engineer

at ostwerk since 2017

Hal Wintour

Model maker

at ostwerk since 2015

the model maker is not a luxury - every project gets a 1:50 model in cardboard and one in timber, and the cardboard one is usually where the section changes for the last time

1:100 - 1:1 how a commission runs

Five stages, and the drawings get bigger as they go

  1. 1:100

    First section

    2 weeks

    We cut one section through your site and write a page on what we think the real problem is. Sometimes the answer is that you do not need an architect, and we would rather find that out here than in month nine.

    issued: one section, one page of notes

  2. 1:50

    Design

    8 to 14 weeks

    Plans, sections and elevations developed together, with the structural engineer in the room from the first week. Two models: cardboard first, which is where the section usually changes for the last time, then timber.

    issued: full 1:50 set, two models

  3. permit set

    Permission

    6 to 20 weeks

    We prepare and submit the application and answer the queries. The timetable in this stage is not ours and we will not pretend otherwise - we will tell you the range for your authority at the start.

    issued: application drawings, statements, correspondence

  4. 1:5

    Construction information

    10 to 16 weeks

    The drawings a builder actually works from: junctions at 1:5, window and door schedules, finishes, specification. This is the longest stage and the one that decides what the building costs.

    issued: tender set, schedules, specification

  5. 1:1

    On site

    for the duration

    One architect visits weekly, and it is the same architect who drew it. We value the work monthly, agree variations in writing before they happen, and keep a marked-up set that becomes your record drawings at handover.

    issued: weekly reports, valuations, record drawings

1:1 terms, plainly

What it costs

We charge a percentage of construction cost - 9% for a new building on a clear site, up to 12% where there is existing fabric to survey and work around. It is invoiced monthly against the stage in progress, and the percentage is fixed at appointment, not recalculated upwards when the cost moves.

The first section is a fixed fee of £1,200 regardless of the size of the project. If you go on to appoint us it is deducted from the first invoice. If you do not, the drawing is still yours.

no fee for the first conversation - we do not bill for meeting you

What we turn down

  • Competitions we have not been invited to. We have never won one and we stopped paying to lose.
  • Projects where the contractor is appointed before the drawings exist. There is nothing left for us to decide and the client pays us to agree.
  • Sites more than two hours away. The weekly visit is not optional, and it stops being weekly at three hours.
  • A seventh project in a year. The six we have are already promised a named architect every week.
1:1 revision note

The first section is two weeks away

Tell us the site and the constraint you believe is fixed. Two weeks later you get a section and a page of notes for a fixed £1,200, and you owe us nothing further whichever way you go.

Start a project