How Extensions Impact Your Garden Layout, and What to Do About It

When you're planning an extension, most of your focus naturally goes on the extra space you're gaining inside. The bigger kitchen, the additional bedroom, the open-plan living area you've been dreaming about. But here's what catches a lot of Hull homeowners off guard: an extension doesn't just change your home – it changes your garden too.
At DB Construction, we've built hundreds of extensions across Hull and East Yorkshire, and we've learned that the most successful projects are the ones where homeowners think about their garden from the very beginning. Let's talk about how an extension will affect your outdoor space, and more importantly, what you can do to make sure you end up with both the extension and the garden you want.

The Reality: You're Going to Lose Some Garden Space

Let's start with the obvious bit. When you build out into your garden, whether it's a rear extension, side return, or wrap-around, you're taking up space that was previously lawn, patio, or planting beds.
For a typical single-storey rear extension in Hull, you might be building out three to five metres. That might not sound like much, but when you look at your actual garden, it can feel like quite a chunk – especially if you're starting with a modest terraced house garden to begin with.
The question isn't really whether you'll lose garden space (you will), but whether the trade-off is worth it for the extra living space you're gaining. For most families, the answer is yes – but it's important to go into the project with realistic expectations.

How Your Garden Shape and Flow Changes

It's not just about the overall size – an extension changes the shape and layout of your garden in ways you might not immediately think about.
Sunlight patterns shift. Your new extension will cast shadows at different times of day. That sunny spot where you used to have your morning coffee might now be in shade. Equally, you might find you've created a lovely new sun trap in a different area.
Access changes. If you're building a side return extension, you might lose your side passage entirely. That affects how you get to the back garden, where you can store bins, and how you bring things like bikes or garden furniture through.
The proportions feel different. A garden that felt nicely balanced before might suddenly feel long and narrow, or the remaining space might feel a bit awkward or difficult to use well.
None of this means you shouldn't build an extension – it just means you need to think about these changes and plan accordingly.

What to Do: Plan Your Garden Alongside Your Extension

Here's our advice: don't treat your garden as an afterthought. Think about your outdoor space at the same time you're planning your extension, not six months later when the build is finished and you're wondering what to do with the odd-shaped bit of lawn that's left.

Consider the View From Inside

Your new extension will have windows or glass doors looking out onto the garden. What will you actually see? Is it a view you'll enjoy, or are you going to be looking at a fence, the bins, or a bit of scruffy grass?
Think about creating focal points in your garden – perhaps a nice planted area, a seating spot, or even just a well-placed feature that draws the eye. When you're sitting in your new kitchen-diner, you want to look out at something pleasant.

Make the Most of What's Left

Just because your garden is smaller doesn't mean it can't work brilliantly for you. In fact, a smaller, well-designed garden is often more useful than a larger, neglected one.
Hard landscaping can be your friend. A properly laid patio or deck area immediately outside your extension creates a usable outdoor space for furniture, barbecues, and summer evenings. It also helps with the transition between inside and outside, especially if you've got bi-fold or sliding doors.
Vertical space matters. When you've lost horizontal space, think vertically. Climbing plants on trellises, wall-mounted planters, and tall, narrow planting beds can bring greenery without eating up precious ground space.
Built-in features work well. Built-in seating, raised planters, or even a small built-in barbecue area can make a compact garden feel purposeful and well-designed rather than cramped.

Think About Practicalities

Drainage is crucial. When you extend, you're covering up ground that previously soaked up rainwater. You need to make sure water drains away properly – both from your extension roof and from your remaining garden area. We always include proper drainage in our builds, but it's worth thinking about how this affects your garden layout.
Access for maintenance. You still need to be able to get to the sides and back of your extension for maintenance. Make sure you've got reasonable access for cleaning gutters, maintaining windows, and dealing with any issues that might crop up.
Where will things go? Bins, garden tools, the lawnmower, bikes, kids' outdoor toys – all the stuff that used to live somewhere in your garden still needs a home. Think about storage solutions before you finalise your extension plans.

Timing Your Garden Work

Here's a practical tip: don't landscape your garden before you build your extension. It sounds obvious, but you'd be surprised how often people spend money on their garden only to have it churned up during the building work.
Wait until the extension is finished. Yes, you'll have some disruption and mess during construction, but once we're done, you can create a garden that works with your new extension rather than trying to salvage what's left of your old one.
That said, do plan ahead. Think about what you want, maybe even get some landscape design ideas, so you're ready to crack on once the extension work is complete.

Working With Your Garden's Orientation

The direction your garden faces makes a real difference to how you should approach things.
South-facing gardens get sun for most of the day. Your extension might create some shade, but you'll likely still have sunny spots. Think about where you want seating areas to catch the afternoon and evening sun.
North-facing gardens are shadier to start with, so losing more light to an extension can be an issue. Focus on shade-loving plants and consider how you can maximise any sunny spots that remain.
East-facing gardens get morning sun, while west-facing gardens get evening sun. Think about when you actually use your garden and plan accordingly.

Making Peace With a Smaller Garden

If you're worried about losing garden space, here's something to consider: how much do you actually use your current garden?
We've worked with lots of families who had large gardens they rarely used because they were too much work to maintain, or because the space inside the house was cramped and uncomfortable. After the extension, they end up with a smaller but better-maintained garden that they actually enjoy, plus a home that works properly for their family.
It's about quality, not just quantity. A well-designed compact garden that you use regularly is worth more than a larger garden that's neglected because you don't have the time or energy to deal with it.

Extensions That Enhance Your Garden

Done right, an extension can actually improve your relationship with your garden, not damage it.
Bi-fold or sliding doors create that seamless indoor-outdoor flow that makes you want to spend time in your garden. When you can throw open the doors on a summer day, your garden becomes an extension of your living space.
Better views from larger windows mean you appreciate your garden even when you're not in it. You might spend more time looking at your garden from your new kitchen than you ever spent actually being in it before.
A reason to invest in your garden. Once you've got a lovely new extension, you might finally have the motivation to sort out the garden properly. Many of our clients end up doing garden improvements they'd been putting off for years.

Getting the Balance Right

At the end of the day, it's all about balance. You're extending because you need more space inside, but you don't want to completely sacrifice your outdoor space to get it.
The good news is that with proper planning, you don't have to choose. You can have the extension you need and a garden that works for you – it just takes some thought about how the two will work together.
When we come to give you a quote for your extension, we'll talk about these garden considerations with you. We'll look at how the extension will sit in relation to your existing garden, what the impact will be, and what options you have for making the most of the space that remains.
We've done this enough times to spot potential issues and opportunities that you might not have thought of. Our job is to help you end up with an extension in Hull that enhances your whole property, garden included.
Ready to start planning? Give us a call on 07934 237607 or email dbconstructionhull@outlook.com. Let's create an extension that works beautifully with your outdoor space, not against it.
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Bi-Fold or Sliding Doors: Choosing the Right Option for Your Extension