UNLOCK EXTRA SPACE WITH LOFT & GARAGE CONVERSIONS IN EAST LOTHIAN & BEYOND
Loft and garage conversions can open up new living areas. McMillan Developments, based in Tranent, turns your vision into reality, with everything from planning to completion, serving East Lothian, Midlothian, and Edinburgh. Our team ensures a seamless transformation of unused space into a functional, stylish living area tailored to your needs.
Need more room? Contact us to get started!


LOFT & GARAGE CONVERSIONS
Transform your loft or garage into valuable living space with our expert conversion services.
Whether you need an extra bedroom, office, or home gym, we handle the entire process from planning to completion. Maximise your home’s potential, adding functional and stylish areas tailored to your needs in East Lothian, Midlothian, and Edinburgh.

BEDROOM CONVERSIONS
We specialise in converting unused spaces into comfortable, stylish bedrooms.
Whether you need a guest room, children's room, or personal retreat, we ensure the design maximises the space and enhances your home’s functionality. Our team focuses on comfort and style, creating a peaceful space that suits your lifestyle.
HOME OFFICE CONVERSIONS
Turn your unused space into a productive home office.
Whether you’re working remotely or need a quiet space for personal projects, our team ensures the design is both practical and inspiring. We optimise the space for comfort, functionality, and focus, giving you the ideal environment to work efficiently.


EN-SUITES & BATHROOM CONVERSIONS
Our team transforms unused rooms into bespoke en-suites or new bathrooms.
We optimise space to create modern, functional bathroom areas that enhance your home’s value and convenience. Whether it’s a stylish en-suite for your master bedroom or a full bathroom conversion, we ensure high-quality design and installation.
HOME GYM CONVERSIONS
Create a personalised home gym with our expert conversions.
We turn unused rooms or lofts into customised fitness spaces, tailored to your workout needs. Our designs ensure the space is functional and motivating, offering all the essentials for a professional gym experience right in your own home.