Loft conversions 101: types, timelines, and what you need to know
At Ohmega Construction, we’re big believers in making the most of the home you already love. And when it comes to adding space, light, and value without taking up any extra garden or ground space, loft conversions are hard to beat.
If you’re thinking about turning your attic into a usable room—whether it’s a peaceful home office, a guest suite, or the master bedroom of dreams—here’s your no-nonsense guide to what’s possible, how long it takes, and what to expect along the way.
The main types of loft conversions
Not all lofts are created equal, and the right approach depends on your existing roof structure, how much space you want to gain, and your budget. Here’s a quick breakdown of the most common types:
Velux (rooflight) conversion
This is the simplest and most cost-effective option. It involves installing windows into the existing roof slope without changing the roofline. It’s ideal if your loft already has enough headroom and you’re after a straightforward transformation.
Dormer conversion
One of the most popular options, a dormer adds a box-shaped extension to your roof, increasing usable floor space and height. It works well for creating larger rooms and often includes space for an en-suite. Dormers can be added to the rear, side, or front (subject to planning).
Hip-to-gable conversion
If your home has a sloping side roof (hipped roof), this type of conversion extends it outwards to create a vertical gable wall. It adds significant room and works particularly well for semi-detached or detached houses.
Mansard conversion
This is the most dramatic option, altering the entire roof structure to create a flat roof with steeply sloping sides. Mansards offer the most space but usually require full planning permission and more time to build.
What’s the timeline?
Every project is different, but as a ballpark:
- Initial consultation and design: 2 to 4 weeks
This includes a site visit, discussion of your ideas, and working with you (and your architect, if needed) to finalise the layout and structural plans. - Planning and approvals: 4 to 8 weeks
Not all loft conversions need full planning permission. Some fall under permitted development, but we’ll always check and handle the process to keep things smooth and compliant. - Build phase: 6 to 12 weeks
Depending on the size and complexity, most loft conversions take around 2 to 3 months. We manage everything—from structural changes and stair installation to electrics, insulation, and finishing touches. - Final checks and sign-off: 1 week
Once the work’s done, building control will inspect the space to ensure it meets regulations. Then it’s all yours to furnish and enjoy.
What do you need to know before starting?
Here’s the honest lowdown:
- Not every loft is suitable for conversion
You’ll need enough head height (at least 2.2m at the tallest point), and the roof structure should be sound. We’ll assess all of this upfront so you know exactly what’s possible. - You might need planning permission
Velux conversions often fall under permitted development, but anything that changes the roofline (like dormers or mansards) may need approval. We’ll walk you through the rules and handle the paperwork. - You’ll need proper insulation and ventilation
Lofts can get hot in summer and chilly in winter. We make sure yours is energy-efficient and comfortable year-round with modern insulation, ventilation, and windows. - Access matters
A new staircase will need space, and the layout of your existing floor will influence where it can go. We’ll plan this carefully to make sure it feels natural and doesn’t eat into your current rooms. - It adds value
A well-done loft conversion can boost your home’s value by up to 20 percent. It’s a smart investment, especially if you’re growing your family or planning to sell in the future.
Why choose Ohmega for your loft conversion?
At Ohmega Construction, we don’t believe in quick fixes or cut corners. We believe in doing the job properly, from the first sketch to the final screw. When we take on a loft conversion, you get:
- A clear, detailed quote with no surprises
- A single point of contact who keeps you in the loop
- Skilled tradespeople who treat your home with respect
- Honest advice, not sales talk
- A result that adds space, style, and lasting value
Whether you’re just starting to explore the idea or ready to get stuck in, we’re here to help bring your plans to life—without the stress.
Thinking about converting your loft?
Let’s have a chat. We’ll help you figure out what’s possible, what it might cost, and what the journey will look like.
Because when you build with Ohmega, you’re not just gaining a room. You’re elevating everyday living.
