PropTech SaaS B2B & B2C 0→1 Design System London · Remote

Housle

Two sides, one system.
My Role
Founding Product Designer
Timeline
Jan – Sep 2021
Platforms
Web · Mobile
Client
Housle · London, UK · Remote
01 — Overview

Real estate, made frictionless
for agents and buyers alike.

Housle is a real estate PropTech SaaS serving both sides of the property market: estate agents managing listings and client relationships on one hand, and property buyers and renters searching and transacting on the other.

I led 0→1 UX/UI design for the full platform, building a reusable component library and design system that gave both surfaces a unified visual and interaction language while serving very different user goals.

The central challenge was workflow complexity. Estate agents deal with long-running, multi-party transactions, properties move through many stages, multiple stakeholders communicate, and document management is a constant friction point. The design needed to surface that complexity intelligently without overwhelming either side of the market.

Post-launch analytics tracked a 35% workflow efficiency gain for agents and a 28% increase in user engagement on the consumer side, both driven by clearer information hierarchy, better navigation, and usability improvements uncovered through iterative testing.

35%
Workflow efficiency improvement for estate agents, tracked post-launch
28%
User engagement increase on the consumer property search side
0→1
End-to-end design from concept to production, component library and design system included
Housle landlord dashboard and agent dashboard shown side by side, with revenue chart, commission summary, and latest property requests.
02 — Research & Discovery

Two very different users.
One long, complicated transaction.

Before any screen took shape, I needed to understand how a single property moves through the system from two completely different seats — the agent managing it, and the buyer or tenant trying to secure it. Agent shadowing, tenant and buyer interviews, and a competitive audit of existing PMS tools shaped every structural decision that followed.

🏠

Agent Shadowing

Sat with estate and letting agents observing how they actually managed live work orders, tenant communication, and contractor coordination day to day — not how the old tools assumed they would.

On-Site Sessions
🎙️

Buyer & Tenant Interviews

One-on-one interviews with people mid-search, focused on the exact moments they lost trust in a listing or gave up partway through an enquiry or application.

Renters & Buyers
🔍

Competitive Audit

Mapped existing property management tools and consumer property portals side by side to see exactly where the agent experience and the consumer experience diverged across the market.

PropTech Landscape
Agent Side B2B

Work orders lived in email and WhatsApp. Agents chased contractors for status updates outside the system, then re-entered progress by hand.

No single view of a property's lifecycle. Listing status, tenancy details, and maintenance history sat in separate tools and spreadsheets.

Document chasing was manual. Referencing paperwork and signed tenancy agreements were tracked outside the platform, with no shared source of truth.

Consumer Side B2C

Search felt disconnected from reality. Listings were often stale or already under offer by the time a buyer or tenant made an enquiry.

No visibility after an enquiry was sent. Buyers and tenants had no way to check referencing or application status once they'd submitted it.

A trust gap with agents. Consumers couldn't tell which agents would actually respond before committing time to booking a viewing.

03 — Information Architecture & User Flows

Two flows,
one shared skeleton.

Both sides of Housle run on the same underlying transaction, seen from two different vantage points. Standardising property, work order, and tenancy as shared objects — rather than screens with duplicated logic — is what let each surface stay simple without the other getting more complex.

B2B Agent Workflow
1
Add Property
Agent creates a listing or tenancy record — the single object every later step and surface reads from.
2
Assign Work Order
A maintenance or setup task is logged against the property and routed to a contractor.
3
Contractor Response
Contractor accepts and updates status in-app — no more chasing progress over WhatsApp.
4
Verify Completion
Agent reviews photo evidence and tenant confirmation before the work order can close.
5
Close & Invoice
Work order closes automatically and the cost is logged against the property record.
B2C Buyer / Tenant Flow
1
Search Listings
Map-synced browse narrows a whole city down to homes actually worth a second look.
2
Save & Compare
Shortlisted homes sit side by side, with alerts if a saved search gets a new match.
3
Book Viewing
A viewing request goes straight to the listing agent, tied to that property record.
4
Submit Referencing
Documents and referencing checks are submitted in-app, with visible status instead of silence.
5
Sign Tenancy
Tenancy agreement is signed and stored against the same property and tenant record.
04 — Visual Design

Three roles, one platform.

Work Order kanban board with Requested, Awaiting, In-progress, and Completed columns, verified badges, and contractor assignment.
01 / Agent — Work Orders

Work Order Pipeline

Every maintenance request as a Kanban card moving from Requested to Completed, with a verification step and a named contractor attached — replacing the spreadsheet-plus-inbox setup most agencies were running on.

Four-stage pipeline — Requested, Awaiting, In-progress, Completed — visible at a glance

Verified / Not verified status and urgency flags surfaced directly on the card

Contractor assignment and due dates tracked without leaving the board

Agent · Web
Landlord dashboard showing listed properties, total units, vacancies, last month's income, a revenue chart, and a managed-properties list.
02 / Landlord — Dashboard

Landlord Dashboard

The view a landlord opens first — portfolio health and income in one glance, with the properties themselves and who's managing each one just below.

Portfolio snapshot — listed properties, total units, vacancies, and last month's income as four glanceable stats

Income vs. expense chart plotted month over month, not buried in a report

Managed-by column on every property, so it's clear which agency is responsible

Landlord · Web
Property Leads screen for agents: a list of new leads with property address, type, unit count, earnings, and Accept/Decline actions.
03 / Agent — Leads

Property Leads

New leads arrive as a single reviewable queue instead of scattered enquiries, so an agent can accept or decline in one action and know exactly what it's worth before committing time.

New / Successful / Unsuccessful tabs keep the lead queue from turning into noise

Earnings shown per lead before the agent decides to accept

One-tap Accept / Decline instead of a multi-step response flow

Agent · Web
Tenant dashboard: rent due and Pay Now action, property card, documents, tenancy agreement, report issue widget, and calendar.
04 / Tenant — Dashboard

Tenant Dashboard

The tenant side of the same platform, built around the handful of things a tenant actually logs in for: paying rent, finding a document, or reporting something broken.

Rent due and Pay Now surfaced at the top, not buried in a menu

Documents and tenancy agreement attached directly to the property card

Report Issue shortcut that feeds straight into the agent's work order pipeline

Tenant · Web
Onboarding and referencing screens: account-type selection (Tenant / Agent / Landlord), a referencing and deposit progress stepper, and landlords and tenants list views.
05 / Onboarding & Referencing

Onboarding & Referencing

One account-type screen splits every new sign-up into the right experience, then carries them through referencing and deposit as a visible progress stepper instead of a black box.

Single role-selection screen — Tenant, Agent, or Landlord — routes the rest of onboarding

Referencing & deposit stepper shows exactly which stage an application is at

Landlord and tenant list views give agents a single admin surface for both

Onboarding
05 — Design System & Handoff

One system, built for
both sides — and for engineering.

🎨
Foundations

Shared Design Tokens

Color, type, spacing, and elevation defined once as tokens and applied consistently across the agent dashboard and consumer marketplace, despite their very different tones and information density.

🧩
Reusable Patterns

Component Library

Cards, forms, navigation patterns, and listing components were built once and reused across web and mobile, B2B and B2C, keeping the platform visually coherent as new screens were added.

🔗
DesignOps

Developer Handoff

Structured handoff specs with naming conventions that matched in Adobe XD and code, plus lightweight component versioning, kept QA cycles short and engineering velocity high as the platform scaled.

Design System

The actual
foundation file.

Housle Design System · Foundations → Color, Type, Components
Foundations → Color
One Palette.
Two Surfaces.
6
brand colors shared across the agent dashboard and consumer marketplace

Navy carries text and structure; teal is the primary mark color; slate, coral, yellow, and lime are reserved for accents, status, and icon fills. Navy and slate are the two that clear accessible contrast directly on white — the rest are tuned for dark surfaces, large type, and UI fills rather than body copy.

AAA#112441
Ink
2.6#60B198
Primary
AA#5A7184
Secondary
3.1#F26665
Accent
1.5#FFCC29
Highlight
1.6#C5D86D
Tint
Foundations → Typography
Lato &
Nunito Sans
10
type styles across 2 typefaces — headings to menu states

Lato carries every heading and body size on the platform. Nunito Sans is reserved for the navigation menu's active and inactive states — a small, deliberate split that keeps reading content and wayfinding visually distinct.

Specimen Lato — Headings & Body
Aa
H1 25px Bold · H2 21px Bold · H3 17px Medium
Body 15 / 14 / 13 / 12 / 11px, Regular
States Nunito Sans — Menu
Mn
Active15px · 600
Inactive15px · 600
Foundations → Components
Built From
the Same Board
12
icons, one consistent stroke weight

Everything below is rebuilt with the system's real tokens — not icons standing in for them. Navigation, buttons, status pills, cards, and tables all trace back to the same six colors and two typefaces shown above.

Top Navigation
housle
Add Property
Sidebar Navigation
Dashboard
Properties
Tenants
Work Order
Inbox
Contractors
Calendar
Tenancy
Accounts
Buttons
+ Add Property + Add Task Add Facilities Details
Status & Tags
● Not Verified ⏱ Urgent New Tenant Request
Work Order Card
Fix Bathroom Leak ⏱ Urgent
2389 Primrose Lane, Dodgeville · Dorothy J. Sadler
CREATED02/01/2020
DUE DATE03/12/2020
Property Table
IssueStatus
Bedroom ScreenTenant Req.
Heating CheckNew
Logo, type, icons, and components live in one Adobe XD board — the same file referenced for both the agent dashboard and the consumer marketplace.
1
Board, Two Surfaces
One token set, shipped twice. The agent dashboard and the consumer marketplace read as different products with very different density — but every color, type style, and component traces back to this one file.
Web Mobile
06 — Results & Outcomes

Measured results.

35%
Workflow Efficiency Gain
Estate agents completed core property management tasks significantly faster, driven by clearer IA, reduced navigation depth, and streamlined document workflows.
28%
User Engagement Increase
Consumer engagement measured by session depth, saved searches, and enquiry submission rates. Improved property discovery and reduced search friction drove the increase.
1
Design System for Both Sides
A single component library serving both the B2B agent surface and B2C consumer surface, keeping the platform visually consistent and accelerating development.
07 — Reflections & Takeaways

What the numbers
actually prove.

The 35% and 28% figures are proof the underlying model was right, not just that individual screens improved. Standardising property, work order, and tenancy as shared objects — rather than screens with duplicated logic — is what let a single component library serve the agent dashboard and the consumer marketplace without either one dragging on the other.

The hardest design decision was information density. Agents wanted to scan a full pipeline at a glance; buyers and tenants wanted one calm decision at a time. Reusing the same components but giving each surface its own layout rhythm, rather than forcing one grid onto both, is what made the shared system feel native on each side instead of compromised on both.

One honest gap I'd close next time: a few of the brand's accent colors don't clear accessible contrast directly on white. I used them correctly — tinted fills and dark surfaces only — but I'd push earlier for that constraint to live in the tokens file itself, next to the color, rather than in my head.

01

Shared data model, not shared screens. The two surfaces stayed visually consistent because the objects underneath — property, work order, tenancy — were the same, not because the layouts were forced to match.

02

Density is a decision, not a leftover. Letting the agent side run dense and the consumer side run spacious, using the same components, was intentional — not a compromise between two audiences.

03

Reusable components compound. The shared icon set and component board are what kept the 35%/28% gains consistent instead of the two surfaces drifting apart after launch.

04

Document contrast rules with the tokens. Accent colors that only work on dark surfaces need that constraint written down next to the color, not just followed correctly by habit.

Cross-Functional

One designer.
Two surfaces, one system.

🔗

Engineering Handoff

Structured handoff specs with naming that matched between Adobe XD and code kept QA cycles short as the agent dashboard and consumer marketplace shipped in parallel.

🗂️

DesignOps

One shared component board serving two products with very different density and audience kept the design library navigable as new work-order and search features were added.

📈

Measured Iteration

Post-launch analytics and follow-up interviews validated the 35% and 28% gains and directly informed the next round of navigation and document-workflow fixes.

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