Blog - What features might add to the cost of your website - image of laptop on desk with a notepad a and pen showing Website Features ticklist and a cup of coffee

When planning your business website, the basics such as your domain, hosting, and design are just the start. As your business grows, you may want to add features that make your life easier and your site more valuable to customers.

These add-ons can range from one-time purchases to regular subscriptions.

Here’s what they do, what they cost, and whether you need them now or later.

At a Glance: Common Website Add-On Features

Feature

Cost Estimate

Best for (Phase)

Online Shop (E-commerce)

Free – £50/month*

Phase 1 or 2: If you sell online

Online Booking System

Free – £20/month

Phase 1: Service-based businesses

Email Marketing Integration

Free – £35/month

Phase 1–2: Building relationships

Membership/Course Area

£15 – £100+/month

Phase 2–3: Growing, recurring income

Premium SEO Tools

Free – £100+/month

Phase 2–3: Focused on growth

Security & Backups

Free – £200/year

Phase 1: All sites (min. level)

Premium Plugins/Themes

£20 – £250/yr

Phase 1–2: Custom design/features

Branding & Custom Design

£100 – £1,000+

Phase 1 or upgrade in Phase 2

*Most ecommerce platforms also take a small fee per sale.

Feature Details

1. Online Shop (E-Commerce)

Allows you to sell products or services straight from your website.
Perfect if: You want to take orders or payments from day one.
Cost: Free plugins (like WooCommerce), or £20 - £50 per month for advanced functions.
Can add later if you're not ready to sell right away

2. Online Booking System

Automates client bookings and saves admin time.
Best for: Coaches, therapists, beauty, and events.
Cost: Free basic plans, £10 - £20 per month for full features.
Essential to add early if you take appointments

3. Email Marketing Integration

Collect emails and keep in touch via newsletters.
Best for: Building customer loyalty and repeat business.
Cost: Free for small lists, £10 - £35 per month as you grow
Start simple and upgrade as you need automation or larger lists

4. Membership or Course Areas

Offer gated content, online courses, or communities.
Best for: Businesses selling knowledge, training, or community access.
Cost: £15 - £100+ per month
Usually Phase 2/3—focus on essentials first

5. Premium SEO Tools & Optimisation

Track keywords, competitors, and rankings.
Best for: Business growth and serious search engine traffic.
Cost: Free - £100+ per month
Add as your marketing budget grows

6. Security & Backups

Protects your website and customer data.
Best for: Everyone.
Cost: Free - £200 per year
Some level should be included from the beginning

7. Premium Plugins or Themes

Boosts your design, functions, or user experience.
Best for: Standing out or adding special features.
Cost: £20 - £250
Start with key tools, add more as you grow

8. Branding & Custom Design

Strengthens recognition and trust
Best for: Making your business memorable.
Cost: £100 - £1,000+
Upgrade as your business grows.

My Top Tip

Don’t try to add everything at once.
Start with features that help your customers find you and contact you. As you grow, you can always upgrade.

How I Help

When I build your site, I help you:

  • Prioritise the features that matter most now
  • Plan what’s best to add later, as you grow
  • Choose cost-effective tools for your budget
  • Understand any ongoing costs up front

Starter Website packages start from £499
See what's included

Not sure what you need? Let’s have a free, no-pressure chat.

Website Costs Series

This post is part of my Website Costs series:

Final Thought

A website is never truly “finished” - and that’s a good thing! It can grow and adapt with your business.

When you’re ready to add new features, see them as investments in making your website work harder for you, not just extra costs.

If you’re unsure, just send me a message on WhatsApp - I’ll help you plan your ideal next steps.

Until next time

Hugs

Sarah x