★★★★★Very impressed with the team's workmanship. Professional from start to finish, carried the work out to the highest standard and left the site clean and tidy.
Jack BatesJuly 2026
The Register
Four Ways To
Four Ways To
Add The Space
Which one is right depends on your plot, your budget and what the house needs. Here is the honest version of each, including what it costs and where it usually lands on planning.
01
Single Storey Rear
The most common extension in the country and for good reason. Opens the back of the house up into a kitchen diner or family room, usually with bifolds or a lantern to pull light in.
From£1,900/m²Typical8 to 12 weeksPlanningOften permitted development
02
Two Storey
Room downstairs and a bedroom or bathroom above it. Costs more per square metre than single storey but far less per room, because you are paying for one set of foundations and one roof.
From£2,000/m²Typical14 to 20 weeksPlanningUsually needs full permission
03
Side Return
Filling in the dead alley down the side of a Victorian or Edwardian terrace. Narrow, awkward and transformative, because it turns a dark galley kitchen into a proper room.
From£2,500/m²Typical10 to 14 weeksPlanningDepends on width and boundary
04
Wraparound
Rear and side combined into one L shape. The biggest ground floor gain you can make without moving, and the one that benefits most from proper structural design.
From£2,400/m²Typical16 to 22 weeksPlanningUsually needs full permission
Rates include labour, materials and VAT. They exclude kitchen units, professional fees and anything unforeseen in the ground. Every one is confirmed in writing after a survey.
Planning
Permitted
Permitted
Development
A lot of single storey rear extensions never need a planning application at all. They fall under permitted development, which is a set of national rules that let you build within defined limits without asking.
The limits cover how far you project from the original rear wall, the height at the eaves and the ridge, how close you build to a boundary, the materials you use and how much of the original garden ends up built on. Flats, listed buildings and conservation areas are treated differently, and so are houses that have already been extended, because the rules measure from the original house rather than from how it stands today.
We check this at the first visit. If you are clearly inside the limits we say so. If you are marginal, we recommend a lawful development certificate, which is your council confirming in writing that what you are building is allowed. It costs a fraction of a full application and it is the document your buyer's solicitor will ask for in ten years time.
What We Handle
- Checking permitted development against the original house, not the current one
- Lawful development certificate applications where you are marginal
- Full planning applications where the size or storey count needs one
- Building control notices and booking every inspection
- Party wall notices where you are building near or on a shared boundary
- Structural calculations through an engineer we have worked with for years
Guidance only, not a formal planning opinion. Rules change and every plot is different, which is why we check yours properly rather than guessing from the pavement.
The ProgrammeWhat Twelve Weeks
What Twelve Weeks
Actually Looks Like
A single storey rear extension, start to finish. Yours will vary, but this is the shape of it and it is what your written programme will be built around.
01
Set Out And Dig
Marking out, breaking ground, digging the trenches and getting the building inspector out to look at them before anything gets poured.
02
Foundations And Slab
Concrete in, blockwork up to damp course, drainage run and connected, then the floor slab and insulation.
03
Walls And Openings
Brick and block up to plate height, steels in over the openings, and the cavity insulated as we go.
04
Roof And Watertight
Roof structure, covering, flashings, fascias and gutters. Windows and doors in. This is the day it stops being a building site and starts being a room.
05
First Fix
Electrics and plumbing run through the studs, underfloor heating laid if you are having it, then the whole lot signed off before it disappears.
06
Plaster And Second Fix
Boarded, skimmed, floors down, sockets and lights on, radiators hung, then decorating.
07
Break Through And Snag
The wall between old and new comes out last, so you keep living in the house. Then we walk it with you, write the list and finish it.
Instant Cost Estimator
Price Up
Price Up
Your Extension
Pick the type, drag the size, choose the finish. You get a real range built on 2026 Nottinghamshire rates, plus the realistic time on site and where you are likely to stand on planning.
No Obligation
Step 1
Extension Estimator
Every figure is a range, not a quote. Built from published 2026 UK build rates with no regional uplift applied, because the Midlands does not warrant one.
What Customers Say
Straight From
Straight From
The Homeowners
Google Reviews
Trustpilot
★★★★★★★★★★Ive used Rob and his team for several projects over the years and they have been nothing but faultless. Genuinely honest guy who I would recommend to anyone.
Luke FrostJuly 2026
★★★★★Professional, reliable and incredibly hardworking. They always arrived on time, kept everything tidy and communicated with us throughout.
Kerry RedgateJuly 2026
★★★★★We've had two extensions built by 1989. The second created a very large open plan kitchen in a very old house. Nothing was too much trouble for the team.
KatieMay 2026
★★★★★From the initial consultation to the final handover, the entire team were professional, transparent and incredibly skilled.
Matthew AndersonJune 2026
★★★★★Nice set of people doing the work. Robert did what we agreed and finished on time. We would use them again.
Steve DrabbleJune 2026
★★★★★Did a great job repairing work needed to my chimney and walls. Quote was fair and all done on time and to a high standard.
Alex BrownJune 2026
★★★★★Brilliant group of lads, hard working and quality work. Would absolutely recommend.
Charlie BowenMay 2026
Straight Answers
The Questions
The Questions
Everyone Asks
A standard single storey rear extension runs roughly 1,900 to 2,600 pounds per square metre in 2026, so a 20 square metre kitchen extension usually lands between 38,000 and 52,000 pounds. Basic specifications start nearer 1,700 and heavily glazed premium builds reach 3,500. Two storey work runs 2,000 to 2,800 per square metre, side returns 2,500 to 3,500 and wraparounds 2,400 to 3,300.
Plenty of single storey rear extensions fall under permitted development if they stay inside the size limits on depth, height and how much of the garden gets built on. Two storey extensions and most wraparounds need a full application. We tell you which side of the line you are on at the first visit, before you spend a penny on drawings.
A single storey extension is normally 8 to 12 weeks on site. Side returns run 10 to 14 weeks, two storey work 14 to 20 weeks and a wraparound 16 to 22 weeks. You get a written programme before we start rather than a vague promise, and we update you against it as we go.
For most extensions, no. The work happens outside the existing footprint for the majority of the programme, and we only break through into the house near the end. We seal that opening off from the rest of the property so you keep living in it.
Planning permission is about whether you are allowed to build the thing at all, and it is your council who decides. Building regulations are about whether it is built safely and properly, covering structure, insulation, fire and drainage. Almost every extension needs building control sign off even when it does not need planning. We handle the notices and the inspections.
We work alongside architects and structural engineers we have used for years. You do not have to go and find them or manage them. We coordinate the drawings, the calculations and the building control application as part of the job.
Staged payments tied to real milestones such as foundations complete, roof on, first fix done. You pay for work that has actually happened. No large deposit up front, and the full schedule is written into your quote before anything starts.
It does happen, usually drainage or a shallow foundation on the existing house. We tell you straight away, price the extra work before we do it and put it in writing. What we will not do is quietly carry on and hand you a bill at the end.
Get In Touch
Get Your
Get Your
Extension Costed
Ring, email or send us photos on WhatsApp. Whatever is easiest. If Rob is on the tools the office picks it up, so you are not left on voicemail.
Call The Office
0115 661 2935Answered during working hours
Mobile & WhatsApp
07737 416143Send photos of the space and we will come back with a guide price
Email
Based In
Linby, NottinghamshireCovering Nottinghamshire, Derbyshire and 50 miles around