Double Storey Rear Extension Arnold
Add two full floors of space to the back of your Arnold home in one build. A double storey rear extension gives you a bigger kitchen and living area downstairs, plus an extra bedroom or bathroom upstairs, for far less cost per square metre than a single storey project.
We design, gain planning permission and build across Arnold, from the semis around Front Street and Redhill to the larger plots near Arnold Lane and Gedling Country Park.
- Free site survey and honest fixed quote
- Full planning and building regs handled for you
- 15+ years building extensions in Arnold and Gedling
Double Storey Rear Extensions in Arnold
Arnold has a huge stock of 1930s to 1970s semis and detached homes with generous rear gardens, which makes it one of the best areas in Gedling borough for a double storey rear extension. Because the roof and foundations are shared across both floors, the upstairs level often costs only 40-60% of what the ground floor costs, so you get roughly double the space for well under double the money.
Downstairs, most Arnold families use the new space for an open plan kitchen diner opening onto the garden. Upstairs, the extension typically creates a fourth bedroom, a master suite with en-suite, or a proper family bathroom. For growing households priced out of moving up the ladder locally, extending is usually the smarter route.
We manage everything under one roof: measured survey, architectural drawings, the planning application to Gedling Borough Council, structural calculations, building regulations sign-off and the build itself. You get one point of contact from first sketch to final clean.
Best For
Semi-detached and detached homes in Arnold, Redhill, Woodthorpe borders and Daybrook with at least 3-4 metres of usable garden depth, where you need both living space and an extra bedroom or bathroom.
Good to Know
Double storey rear extensions in Arnold almost always need planning permission from Gedling Borough Council. We prepare and submit the application for you, with a 100% approval record to date.
Benefits of a Double Storey Rear Extension
Two floors of space, one set of foundations, one roof and one round of disruption.
- Better value per square metre – the second floor shares foundations and roof, so it costs far less than building the same space as a separate project.
- Space where you actually need it – a bigger kitchen and dining area downstairs plus a bedroom, en-suite or home office upstairs.
- Strong added value – moving from three bedrooms to four typically adds 15-20% to the value of a home in Arnold and NG5.
- Cheaper than moving – stamp duty, agent fees and moving costs on an upsize often exceed a large slice of the build budget.
- Keeps your garden usable – building upwards as well as outwards means you need less garden depth than a very deep single storey.
- One period of disruption – both floors are built together, so you avoid going through two separate projects years apart.
Our Process in Arnold
A clear, managed route from first visit to handover.
Free Site Survey
We visit your Arnold home, measure up, discuss what you want and talk honestly about budget and feasibility.
Design and Drawings
Architectural plans for both floors, shaped around your layout, light and how the extension sits beside neighbouring homes.
Planning Permission
We submit the full application to Gedling Borough Council and handle any questions. Decisions usually take about 8 weeks.
Structural and Regs
Structural calculations, building regulations drawings and party wall notices where your semi shares a boundary.
Foundations and Shell
Groundworks, brickwork to two storeys, steels, floor joists and roof, made weathertight as quickly as possible.
First and Second Fix
Electrics, plumbing, plastering, kitchen or bathroom fit-out, decoration and flooring across both floors.
Sign-Off and Handover
Building control completion certificate, snagging walk-round and a full clean before we hand over the keys.
Double Storey Rear Extension Costs in Arnold
Guide prices for 2026. Every home is different, so we always confirm with a fixed written quote after a survey.
| Project Size | Typical Footprint | Guide Cost |
|---|---|---|
| Compact double storey rear | 3m x 4m per floor (24m² total) | £65,000 – £85,000 |
| Mid-size double storey rear | 4m x 5m per floor (40m² total) | £90,000 – £120,000 |
| Large double storey rear | 5m x 6m per floor (60m² total) | £125,000 – £165,000 |
| Kitchen fit-out (if included) | Mid-range units and worktops | £12,000 – £25,000 |
| New bathroom or en-suite | Upstairs, fully fitted | £6,000 – £12,000 |
Guide figures include structure, roof, windows, plastering and standard finishes. Design fees, planning fees and premium kitchens or bathrooms are quoted separately so you can see exactly where your budget goes.
Planning Permission for Two Storeys
📋 What Gedling Borough Council will look at
- Depth and height: double storey rear extensions fall outside most permitted development limits, so a full planning application is normally required.
- Neighbour impact: the 45-degree rule on light to next-door windows matters most on Arnold’s semi-detached streets.
- Design: matching brick, roof pitch and window style to your existing house helps applications pass smoothly.
- Party walls: if you share a boundary, party wall notices are usually needed before work starts. We arrange these.
- Building regulations: structure, fire escape from the new first floor, insulation and drainage all need approval, which we manage end to end.
Areas We Cover
Based locally, we cover Arnold and the surrounding NG5 area including Redhill, Daybrook, Woodthorpe and Bestwood.
Double Storey Extension Gallery
What Arnold Homeowners Say
“We went from a three bed to a four bed with a brand new kitchen diner. Planning with Gedling council was handled completely for us and the build finished on schedule. Best money we have spent on the house.”
“Living through a double storey build with two kids was our worry, but the team kept the house sealed off and tidy every day. The new master bedroom and en-suite upstairs are superb.”
“They matched the brick on our 1950s semi so well you cannot tell where the old house ends. Fixed quote, no surprises, and our neighbours barely noticed the work. Highly recommended in Arnold.”
Double Storey Rear Extension Questions
Almost always, yes. Two storey rear extensions in Arnold rarely fit within permitted development limits, so a full application to Gedling Borough Council is the normal route. We prepare the drawings, submit the application and deal with the planners for you.
Most Arnold projects fall between £65,000 and £165,000 depending on size and finish. A mid-size build of around 4m x 5m per floor typically costs £90,000 – £120,000 before kitchen and bathroom fit-out. We confirm exact costs with a fixed quote after a free survey.
On site, expect around 4 to 6 months for a typical Arnold double storey rear extension. Add roughly 3 months beforehand for design and the Gedling planning decision. We give you a written programme before work starts.
Yes, most Arnold families stay in the home. We build the shell weathertight before breaking through to the existing house, and we seal work areas with dust screens. The most disruptive phase is the break-through and kitchen swap, which we plan with you in advance.
Usually, yes. Adding a bedroom and a larger kitchen typically lifts values in Arnold and the wider NG5 area by 15-20%, and four bedroom homes near good local schools are in strong demand. A local estate agent can give you a view on ceiling prices for your street.
Ready to Extend Your Arnold Home?
Book a free, no-obligation site survey and get a clear fixed quote for your double storey rear extension.