Digital BrochurePremium Garden Buildings
Bespoke Spaces,
Exceptional Quality
Hand-crafted garden rooms, annexes, and outdoor living spaces built by our trusted in-house team.
About Us
Transforming Gardens,
Elevating Lifestyles
At LouMil Garden Buildings, we create more than just structures – we craft transformative spaces that elevate how you live, work, and play.
Every project is built by our small, trusted in-house team. No subcontracted fitters, no compromises on quality. Just expert craftsmanship and genuine care for every detail.
10
Year Guarantee
100+
Projects Completed
5.0
Google Rating
Transparent Pricing
Guide Prices
Every build is bespoke, so prices vary by size and specification. Here's a guide to help you plan your project.
Garden Rooms
Insulated, fully fitted garden rooms for any purpose
Starting from
Get a Quote
- Full insulation & heating
- Electrical installation
- Choice of cladding
- Plastered & decorated
Premium Garden Rooms
Larger spaces with enhanced specifications
Starting from
£18,000
- Everything in Garden Rooms
- Composite cladding upgrade
- Additional power points
- Enhanced lighting package
Annexes & Guest Suites
Turnkey self-contained living spaces
Starting from
£35,000
- Full kitchen with appliances
- Bathroom (shower, toilet, sink)
- Separate bedroom
- Towel heater & ventilation
* All prices are guide prices and include VAT. Final quote confirmed after a free site survey. Finance options available.
Our Services
What We Build
Garden Offices
Purpose-built workspaces with full insulation and electrical installations.
Garden Gyms
Private fitness spaces with reinforced flooring and climate control.
Garden Bars
Entertainment spaces with bars, seating areas, and ambient lighting.
Garden Salons
Professional studios with plumbing and salon-grade finishes.
Annexes & Guest Suites
Self-contained living spaces with bathrooms and kitchenettes.
Why Choose Us
Built Different
10-Year Structural Guarantee
Complete peace of mind with our comprehensive warranty.
In-House Build Team
No subcontractors. Our trusted craftsmen handle everything.
Fixed Price Quotes
Transparent pricing with no hidden extras.
Free 3D Designs
Visualise your building with photorealistic renders.
Premium Materials
Quality finishes using the best materials available.
Year-Round Comfort
Fully insulated for all seasons.
Standard Specification
Everything Included
As Standard
Every LouMil garden building comes fully equipped with premium features as standard. No hidden extras, no surprise costs.
How It Works
Our Simple Process
Initial Consultation
We discuss your vision, requirements, and budget.
Design & Quote
Fixed-price quote and free 3D design within 24 hours.
Site Survey
We visit your property to assess access and confirm details.
Construction
Our in-house team builds on-site, typically 1-3 weeks.
Handover
A clean, finished building backed by our 10-year guarantee.
Testimonials
What Our Clients Say
"Absolutely delighted with our garden office. The team were professional from start to finish, and the quality is outstanding."
Sarah M.
Worcester
"LouMil exceeded all our expectations. The annexe they built for my mother-in-law is beautiful and built to an incredibly high standard."
James T.
Birmingham
"From design to completion, everything was handled brilliantly. No hidden costs, excellent communication, and a stunning garden room."
Rachel & David
Cheltenham
Service Area
Garden Rooms & Annexes:
Nationwide across the UK
Summerhouses:
UK-wide delivery and installation
Covering Worcester, Birmingham, Cheltenham, Hereford, Gloucester & surrounding areas.
Build Times
Garden Rooms:
1–3 weeks on-site
Annexes:
3–6 weeks (may require planning)
Most standard garden rooms don't require planning permission under permitted development.
Start Your Project
Ready to Transform
Your Garden?
Contact us today for a free, no-obligation consultation. We'll create a custom 3D design and quote within 24 hours.
© 2026 LouMil Garden Buildings. All rights reserved.