Home Extensions in Portmarnock
More Space, Better Living — Without Moving.
Need extra room in your Portmarnock home? Whether you're expanding for a growing family, creating a work-from-home setup, or simply want to upgrade your layout — J&G Conwell Construction delivers custom-designed extensions that blend style, space, and long-term value.
From initial drawings to final finishes, we handle every step with precision and care — making your home extension smooth, stress-free, and built to last.
What We Offer for Home Extensions in Portmarnock
Rear Extensions – Ideal for open-plan kitchen, dining & family zones
Side & Wraparound Additions – Maximise corner or narrow side plots
Two-Storey Extensions – Add upstairs bedrooms, bathrooms, or extra workspace
Garage Conversions – Turn unused space into a home gym, office, or extra lounge
Living Room & Kitchen Expansions – Bring in light, flow, and modern design
Bathroom, Ensuite & Utility Additions – Practical improvements for daily life
Planning Permission & Compliance – We help with drawings, submissions & approvals
All extensions are designed to integrate seamlessly with your existing property — adding comfort, style, and function without compromising structure or charm.
Why Choose J&G Conwell Construction in Portmarnock?
Experienced Extension Builders with Local Knowledge
Full Project Management — From Plans to Paint
Transparent Quotes & No Hidden Costs
Custom Designs That Match Your Home’s Character
Skilled Craftsmanship with Premium Materials
Fully Insured, Regulation-Compliant Construction
On-Time, On-Budget Completion
We don’t just build extra rooms — we transform how your home works for you.
Designed for Portmarnock Living
With its mix of modern estates and coastal character, Portmarnock homes deserve thoughtful upgrades. We design extensions that feel natural, enhance your lifestyle, and add long-term value — whether you’re building out or building up.
Let’s Expand Your Space in Portmarnock
Ready to create more space without leaving the home you love? Contact J&G Conwell Construction today for a free consultation — and let’s design a home extension that fits your needs and future perfectly.
📍 Serving Portmarnock, North Dublin & Surrounding Areas
☎️ +353 (86) 458 8014
📧 [email protected]
J&G Conwell Construction is a construction company Specialising in new builds, modular home's, renovations, extensions & groundworks.