Lexacon Contract AI

Designing AI Contract Risk Analysis for the Construction Industry

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Industry

Construction01
Legal Tech · AI02

Project Type

SaaS Web App01
Investor Pitch Deck02
Social Campaign03
Website04

Services

Product Design · UI/UX01
Design System02
Presentation Design03
Social Media Design04
Web Design05

Overview

Contract Risk, Read In Minutes

Lexacon is an AI platform that reads construction contracts and flags the risks before anyone signs. Upload an NDA, a construction contract or a consultancy agreement, and it checks every key clause against the company’s own risk profile.

The founders bring decades of construction and legal experience. My team and I designed what they show customers and investors: the web app, the investor deck, the social launch and the website.

The Problem

The Challenge

Construction runs on contracts, but most firms can’t put a lawyer on every one. Four in ten contracts have ambiguous terms, and a manual review costs around £5,500.

The product had to make legal analysis readable for people who aren’t lawyers, and give them findings they could trust and act on, not a score from a black box.

Had to work for

Contract managers
SME owners
Consultants

Had to stay

Every risk tied to a clause
The client’s own rules
An expert one click away

What I Delivered

How I Helped

I led the design from the first wireframes to the finished product, then the deck that took it to investors and the campaign that took it to market.

Everything shares one teal, one mint and one plain way of talking, so Lexacon reads as the same calm expert in the app, the deck and the feed.

Web app, 30+ screens
Wireframes to hi-fi
Components and styles in Figma
16-slide investor deck
40+ social posts and carousels
Marketing website

The Product

AI Analysis, Plain Answers

Lexacon’s promise is that everyone can get high-quality contract risk analysis at a sensible price. Set your risk appetite once, upload a contract, and in about five minutes see what’s risky, why it matters and what to change.

4 pieces

One product and everything that takes it to market

Web appPitch deckSocial campaignWebsite

The Work

Four Pieces, One Expert Voice

Each piece had one job, from the investor meeting to the moment a contract manager reads their first risk report. Each job became a chapter you’ll see below.

Pitch deck

Its jobMake the problem, product and ask clear to investors.

Chapter 01 · Pitch deck

Web app

Its jobTurn a long contract into risks you can act on.

Chapter 02 · Web app

Social campaign

Its jobTeach construction teams why contracts need a second look.

Chapter 03 · Social

Website

Its jobTurn a visitor into a first contract review.

Chapter 04 · Website

User Flow

Upload To Answer, Five Steps

A review asks for two real decisions: what you’ll accept, and what you’ll change. Lexacon does the reading in between, and shows its working at every step.

The team does

01Set the risk profileCaps and key risks per categoryDecision

02Upload the contractPDF or DOCX, with client and sector

03Wait about five minutesLeave the page, it keeps going

04Read the risk summaryScore, rating and compliance

05Amend and shareInternal notes, external positionDecision

Lexacon does

01Saves your limitsLiability, indemnities, step-in rights

02Files it by categoryNDA, construction or consultancy

03Reads every clauseAgainst your profile

04Scores the risk80% · High · 6 of 13

05Writes the changesAmended clauses, marked-up file

Same step, both sides: what the team does and what Lexacon does. Real screens from the product design.

Process

From Wireframe To Product

We started in grey: what goes on each screen and in what order, before any colour. Once the structure was agreed, the same layouts became the finished product. Three of those screens, before and after.

DashboardWhere every review starts and ends

Wireframe of the dashboard: contracts reviewed, time saved and a table of contracts

Final dashboard: contracts reviewed, 23 hours saved and the contracts table with status chips

Two numbers lead: contracts reviewed and time saved.
Status chips replace a text column: uploaded, completed, edited.
Categories moved to the sidebar so the table stays wide.

Sign upThe first screen a new client sees

A product preview beside the form, so people see what they’re signing up for.
Four fields and one button: Get started.
The teal panel sets the brand from the first screen.

PlansChoosing a subscription

Final pricing with three plans side by side

Three plans side by side, the popular one marked.
Features as ticks, one button per plan.
A “Can’t decide?” line to talk to the team.

Design Decisions

Built To Be Trusted

People sign or walk away from deals on what Lexacon tells them. So every design decision came back to one question: would a contract manager trust this enough to act on it?

Decision 01

Show the working, not just a score

Every key risk opens as a card: the clause it came from, the position your profile requires, the risk assessment and what to change. Nobody has to take the AI’s word for it.

Total Contract Liability risk card with clause, position, risk assessment and risk analysis

Decision 02

Your rules come first

Before the first upload, a team sets its risk profile: liability caps as a share of contract value, and which risks count as key. Lexacon judges every contract by those rules, not a generic checklist.

Decision 03

One review, two audiences

The internal analysis is written for your team. The external analysis is the version you send: clause, suggested action and amended wording, ready to copy or download for the other party.

External analysis table with clause, suggested actions and amended clause

Decision 04

Make five minutes feel short

We explored a progress bar and a progress ring for the wait. The ring won, with a plain line beside it: go and grab a coffee, we’ll be done before you get back.

Contract analysis in progress with a progress bar

Contract analysis in progress with a 25% progress ring

Chapter 01 / 04 · Pitch deck

Presentation design · Investor story

A Deck Built To Raise

Sixteen slides in the same teal and mint: the problem, the headlines behind it, the product, the market, the competition, traction, the team and the ask. Each slide makes one point, with the numbers big enough to read across a room.

Slides, from the problem to the ask and a QR code to try it: 16 slides
The market drawn as TAM, SAM and SOM circles, from 318bn down to 107m: 3 circles
The ask, with the use of funds split across sales, team and tech: £300k

What we made Investor story 16 slides Market sizing chart Competition map Traction roadmap Team slide Use of funds

Chapter 02 / 04 · Web app

Product design · UI/UX

A Product That Explains Itself

We designed Lexacon for people who aren’t lawyers. Plain words, one teal, one mint, and every finding tied back to the clause it came from. More than 30 screens take a team from sign-up to a marked-up contract.

Dashboard · Every contract and its status

New analysis · Category, file and details

Risk summary · Score, rating, compliance

Welcome · Two first steps

Scroll inside the window to read the internal analysis

Screens, from sign-up and plans to amendments and settings: 30+ screens
Contract categories, each with its own risk profile: NDA, construction, consultancy: 3 categories
Analysis views: internal for your team, external for the other party: 2 views

Design system

Teal for trust, mint where you act

Lexacon Teal carries the brand, headings and the dark summary cards. Mint marks every button you press. Status colours only appear on risk: red for non-compliant, amber for uploaded, green for completed.

Lexacon Teal#004449 Deep#03292C Mint#89EC9F Green#65D67E Mist#E9F1F3 Paper#F5FAFB

Aa Inter DisplayLogo and headings · SemiBold

Aa InterInterface · Regular, Medium, SemiBold

Every screen in the product Log in · Sign up Plans Welcome Dashboard New analysis Risk profiles Contract details Analysis in progress Analysis summary Risk summary Internal analysis External analysis Settings Feedback Change plan

Chapter 03 / 04 · Social campaign

Social media design · Content

A Feed That Teaches

The launch campaign explains contract risk to construction teams one idea at a time: the five types of contracts, the clauses to watch, the costs of signing blind and how Lexacon works in five steps. Light, dark and mint posts, carousels and seasonal greetings, all on one grid.

Risk profile

Drag and drop

Wait 5 min

Risk breakdown

Posts and carousel frames, square and portrait: 40+ posts
Colourways that keep the grid varied: paper, deep teal and mint: 3 colourways
Posts in the how-it-works carousel, one step each: 5 steps

Chapter 04 / 04 · Website

Web design

A Website That Starts A Review

Lexacon had no site that showed the product. We designed one around the real screens: the promise, the problem in numbers, how it works in three steps, the product in tabs, security, the team and FAQ, with one button repeated all the way down: Review your first contract.

Home · Never sign a bad deal again

Scroll inside the window to read the homepage

Sections, from the promise to the last ask, built on real product screens: 9 sections
Call to action, the same label everywhere: Review your first contract: 1 action
Designed for desktop and phone, with working tabs and FAQ: 2 sizes