DTM — BUILD LOG
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START A PROJECT

SHEET 02 — THE STUDIO

EST. 2019 / LONDON

Six people who would rather specify it once than guess at it three times.

We started as two people doing production work for studios that had run out of hours. The work kept coming back with the same problem attached: nobody had written down what the thing was supposed to do.

So we put the specification first. Before a pixel is drawn, there is a document that says what every state does, what every token is worth, and what happens when the content is twice as long as anyone planned for. It reads like a datasheet because that is what it is.

We take four engagements a year. Four is what lets us document the work and still pick up the phone about it eighteen months later.

PRACTICE

FOUNDED

2019

PEOPLE

06

LOCATION

LONDON

ENGAGEMENTS / YR

04

TYPICAL BUILD

8 WEEKS

DISCIPLINES

BRAND, UI, ENG

02.3 — METHOD

Five operations, in order.

Nothing is drawn before it is specified, and nothing is built before it is drawn. An eight-week site and a twelve-week system run the same five operations. Only the durations move.

TYPICAL BUILD

8 WEEKS

START A PROJECT ↗

01

Survey

We read what already exists. Analytics, support tickets, the previous agency’s files, and the sentence the founder keeps repeating in meetings.

SURVEY NOTE

WEEK 01

02

Specify

Every state, token and edge case written down before anything is drawn. This is the document the build is later measured against.

SPECIFICATION

WEEK 02–03

03

Draw

Plates at full size. Type scale, grid, motion curves, and the four widths that actually matter.

PLATE SET

WEEK 03–05

04

Build

Production in the real medium, not a picture of it. Reviewed against the specification line by line.

BUILT SITE

WEEK 05–08

05

Hand over

Files, tokens and a maintenance note in plain English. You own all of it.

HANDOVER PACK

WEEK 08

02.4 — PERSONNEL

SIX SIGNATORIES

Two designers working over drawings at a drafting table

MH

M. Halloran

Writes the specification, signs the drawing, and takes the call when something breaks.

PRACTICE

2019

JO

J. Okonkwo

Type systems and marks. Owns the argument about the logo, and usually wins it.

BRAND

2019

SV

S. Väisänen

Owns the grid, the type scale, and every motion curve on this sheet.

INTERFACE

2020

RD

R. Diallo

Turns plates into something that ships, and keeps shipping after handover.

ENGINEERING

2021

AP

A. Petrescu

Finds the edge case before the client has to. Runs every accessibility pass.

PRODUCTION

2022

TL

T. Lindqvist

Decides what the pages say, and cuts the half that says nothing.

EDITORIAL

2023

02.5 — STANDARDS & TOOLING

WHAT WE HOLD TO

A specification is only worth what it is measured against. Every plate is checked on these before handover. If a line below stopped being true it would come off the sheet.

WCAG 2.2 AA

HELD

Contrast, focus order, target size and motion preference, checked on every plate.

W3C

CORE WEB VITALS

HELD

LCP, CLS and INP measured on the built site, not on a staging box with no network.

CHROME UX

REDUCED MOTION

HELD

Every animation has a still state, and CSS decides which one you get.

MEDIA QUERY

SEMANTIC MARKUP

HELD

One h1 per page, landmarks that mean what they say, alt text written by a person.

HTML LIVING

COLOUR TOKENS

HELD

Every colour is a token. Nothing is typed as a hex twice and the theme inverts whole.

INTERNAL

BROWSER FLOOR

HELD

Last two versions of Chrome, Safari, Firefox and Edge. Older degrades, never breaks.

INTERNAL

02.6 — RECOGNITION

AWARDS & CITATIONS

2026

SITE OF THE DAY

Halcyon Instruments, cited for the specification-led process rather than the visuals. We take that as the compliment.

AWWWARDS

2025

TYPE IN USE

Northbank Refinery. The annual’s only entry set entirely in one grotesque, at one weight.

TDC

2025

BEST INTERFACE

Ferrous, nominated and not won. It is on the sheet because the nomination is the honest fact.

FWA

2024

DESIGN SYSTEM

Kiln Works, for a token set still in production three years later without a fork.

D&AD

2021

NEW STUDIO

The practice, at eighteen months old, on the strength of four finished projects.

CREATIVE REVIEW

02.7 — CLIENTS OF RECORD

ENGAGEMENTS 2019–2025

NEXT STEP

Start a project

STUDIO

DATUM®

London, UK

Established 2019

CONTACT

CONTACT

studio@datum.example

studio@datum.example

+44 20 7946 0102

+44 20 7946 0102

Instagram / LinkedIn

Instagram / LinkedIn

SPECIFICATION

PAGE WEIGHT

1.34 MB

REDUCED MOTION

HONOURED

ALT COVERAGE

100%

LIGHTHOUSE A11Y

100 / 100

SPECIFICATION

PAGE WEIGHT

1.34 MB

REDUCED MOTION

HONOURED

ALT COVERAGE

100%

LIGHTHOUSE A11Y

100 / 100

DATUM

DATUM

DRAWN BY

DRAWN BY

Ciprian Titire

C. TITIRE / 2026-08-10

C. TITIRE / 2026-08-10

CHECKED BY

CHECKED BY

Ada Wren

A. WREN / 2026-08-10

A. WREN / 2026-08-10

APPROVED

APPROVED

Datum

REV 1.0.0 / ISSUED

REV 1.0.0 / ISSUED

© 2026 DATUM® — ALL SHEETS

DTM-2026-A / REV 1.0.0

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