Add space, style, and functionality to your home
A well-planned house extension creates valuable living space and can significantly boost the long-term value of your property. For many homeowners, extending is a cost-effective alternative to moving, allowing you to gain the room you need while preserving the character and location of your current home.
Constructum Code is a specialist provider of house extensions, trusted for delivering bespoke projects across London and the surrounding areas.
Individual Design
We design each extension to complement your existing architecture, so the new space feels like a natural part of your home.
Durability
We use high-quality materials and proven construction methods. The result is an extension that is efficient, reliable, and built to last.
End-to-End Management
As experienced house-extension builders in London, we oversee the full process — from planning permissions to completion.
Services:
- Planning & Permits — All approvals handled in line with UK building regulations.
- Budget Control — Clear estimates provided upfront, with no hidden costs.
- On-Time Delivery — 95 % of extensions completed on or before the agreed schedule.
- Guaranteed Standards — Backed by a 10-year warranty.
- Communication — Regular updates and direct support throughout.
- Environmental Care — Minimal noise, waste, and disruption to protect clients and communities.
Explore our portfolio of house extensions across London.
Get in touch with our team today to start planning your house extension.
