Engagement Models/Project Build

A fixed-scope build.
Shipped on the
day we said.

No scope creep. No time-and-materials surprises. We scope the project, price it, and build it -- shipping on the date in the contract. If it takes longer, that is on us.

Engagement31 projects shipped · 2023-2529 on-time · 2 within 5 daysFixed price · no extrasScope change? We re-quote before we move
Project Plan
Bryn Hall Hotels · Web App
build/bh-webapp · 6 weeks · ref PB-0312
PB
6 WK
FIXED
W1
W2
W3
W4
W5
W6
Lead
Discovery
RT
Rhys
Copy + design
CJ
Catrin
Build
EW
Eira
Integrations
AP
Alun
QA
EW
Eira
Launch
RT
Rhys
Duration
6wks
fixed
Fixed price
£8.2k
all-in
Launch date
Fri 14
as scheduled
How a project build works

Six phases. One fixed price.

Every project build follows the same six-phase process -- Discovery through Launch. Each phase has a named lead, a defined output, and a sign-off gate before the next phase begins.

Discovery + scoping

We turn your brief into a locked scope document. Wireframes, data model, integrations listed. You sign it off before a line is written.

W1

Copy + design

Pages, copy, component designs -- all reviewed and signed off. Build does not start until design is approved.

W2

Build

Front-end and back-end built against the signed scope. Daily standups. You see progress in a staging environment from day one.

W3

Integrations

Stripe, Clerk, Resend, your CRM -- wired in and tested against real credentials, not mocks.

W4

QA + accessibility

Cross-browser, mobile, screen reader, performance. 88-point checklist. Nothing ships with a known bug.

W5

Launch + handover

DNS cutover, monitoring live, Loom walkthrough recorded. You own the codebase from day one.

W6
Real numbers

31 projects shipped. 29 on time.

Since 2023 we have shipped 31 fixed-scope projects. 29 launched on the contracted date. Two launched within 5 days of schedule -- both due to client-side delays on content, not our build. No project has overrun its fixed price.

31
Projects shipped · 2023-25
29/31
On time or early
£0
Scope overruns billed to clients
AT
Aled Thomas
COO · Bryn Hall Hotels · project delivered Feb 2025
We had been burned before -- a development agency that kept adding weeks and invoices. RL gave us a price, a date, and a scope document. They shipped on a Friday. On the Friday. We have since commissioned two more builds.
Web app + two follow-on builds
Why fixed scope, not time-and-materials

Three ways flexible billing
quietly costs you more.

Time-and-materials feels lower risk. It is not. Fixed scope aligns our incentives with yours -- the faster we build, the better for us. T&M does the opposite.

0%
Projects that overran their price
31 for 31
~4h
Your time required per week
Reviews + sign-offs
£3.8k
Smallest fixed-scope build we have done
4 weeks · internal tool
How we compare
T&M agency
"We'll see how it goes"
Freelancer
Hired piecemeal
Big agency
£40k+ engagements
Best fit
RL Project Build
Fixed scope · fixed price
Price certainty
Day rate · estimate onlyEstimate
Hourly · scope creep riskVariable
Fixed · but high floorHigh floor
Fixed price · locked at sign-offLocked
Timeline certainty
Estimate · often slipsSlips
Depends on availabilityVariable
Fixed · but 3-6 month leadLong lead
Contracted launch dateContracted
Scope discipline
Change requests billed by the hourAdd-ons
Depends on the freelancerVariable
Change control process · delaysSlow
Re-quote before any change · nothing silentTransparent
Codebase handover
Usually yes · variesVaries
Yes · often undocumentedPartial
Yes · transition fee may applyCosts extra
You own the code from day oneDay one
Post-launch support
Billed separatelyExtra
Often unavailable after handoverNone
Support retainer availableAdd-on
30-day included · retainer optional afterIncluded
Inside the build

A fixed timeline.
Same structure every project.

W1Discovery
Scope locked · data model agreed · integrations listed
You sign off the scope document before build begins
RT
Rhys
W2Design
Wireframes + copy + component designs reviewed
Design sign-off gate -- build does not start until approved
CJ
Catrin
W3Build
Front-end + back-end built against signed scope
Staging environment live from day one
EW
Eira
W4Integrations
Stripe · Clerk · Resend · CRM wired in + tested
Real credentials · not mocks
AP
Alun
W5QA
88-point checklist · cross-browser · mobile · a11y
Nothing ships with a known bug
EW
Eira
W6Launch
DNS cutover · monitoring live · Loom walkthrough recorded
You own the codebase. 30-day support window begins.
RT
Rhys
Three project sizes

Pick the size that fits
what you need to build.

All three sizes are fixed-price and fixed-timeline. Scope is locked at sign-off. If your project is between sizes, we quote to scope.

What is included
Smallfrom £3,800 · 4 wks
Mediumfrom £8,400 · 6-8 wks
Largefrom £18,000 · 8-14 wks
Pages / screens
Up to 8
Up to 20
Unlimited
Auth + roles
Single role
Up to 3 roles
Custom RBAC
Integrations
1 (e.g. Stripe)
Up to 3
Up to 8
Reporting / analytics
·
Basic dashboard
Full analytics suite
Transactional email
·
Accessibility (WCAG AA)
on + audit
API / webhooks
·
REST API
REST + webhooks + docs
Post-launch support
14 days
30 days
60 days

Prices ex-VAT. Fixed price locked at scope sign-off. Scope changes re-quoted before any work begins.

Three project sizes

Pick a starting point.
We quote to scope.

These are starting prices. Every project is quoted individually after a free 30-min scoping call. The price in that quote is the price on the invoice.

Small
Small build
from £3,800 + VAT · 4 weeks
A focused internal tool or marketing site. Up to 8 screens, one integration, single user role. Scoped, built, and shipped in four weeks.
Scope
  • Up to 8 pages or screens
  • Single user role
  • 1 integration (e.g. Stripe or Resend)
Deliverables
  • Full codebase · your repo
  • 14-day post-launch support
Ideal for
  • Internal tools · landing pages · simple SaaS
Scope a small build
Fixed price · re-quoted if scope changes
Most popular
Medium build
from £8,400 + VAT · 6-8 weeks
A full web application. Up to 20 screens, up to 3 integrations, up to 3 user roles. The right size for most SaaS MVPs and internal platforms.
Scope
  • Up to 20 pages or screens
  • Up to 3 user roles
  • Up to 3 integrations
Deliverables
  • Full codebase · your repo
  • Basic dashboard + reporting
  • Transactional email included
  • 30-day post-launch support
Ideal for
  • SaaS MVPs · customer portals · booking systems
Scope a medium build
Fixed price · re-quoted if scope changes
Large
Large build
from £18,000 + VAT · 8-14 weeks
A complex platform. Unlimited screens, custom RBAC, up to 8 integrations, full analytics, API + webhooks with documentation.
Scope
  • Unlimited screens
  • Custom role-based access control
  • Up to 8 integrations
Deliverables
  • Full codebase · your repo
  • Full analytics suite
  • REST API + webhooks + documentation
  • 60-day post-launch support
  • WCAG AA audit included
Ideal for
  • Enterprise tools · multi-tenant platforms · regulated industries
Scope a large build
Fixed price · re-quoted if scope changes