Side return extension steels · Derby
Side return extension steels in Derby
Side return extension steels for homes in DE1, DE3, DE21, designed by a structural engineer.
- Free survey visit in Derby
- Engineer's calculations arranged
- Building control handled for you
- Free survey visit
- Engineer's calculations arranged
- Building control handled
- Fixed written price once scope is agreed
- England, Wales, mainland Scotland & NI
About our side return extension steels service in Derby
If you live in Derby, side return extension steels can usually be planned and priced after a single survey visit. We also cover the surrounding towns and villages in Derbyshire. We cover DE1, DE3, DE21, DE22 and DE23, and we fix the price in writing once the layout and scope are agreed.
Many Victorian and Edwardian terraces have a narrow back wing, often called an outrigger, with a strip of yard down one side. Infilling that strip turns a galley kitchen into a wide family room, but the outrigger's side wall usually holds up a bathroom or bedroom above, so it has to be replaced with steel.
What to expect
- Victorian outrigger walls are often a single brick thick in soft lime mortar, sometimes on very shallow footings. The engineer may ask for trial holes before deciding whether new foundations are needed under the column positions or beam ends.
- The number of beams, columns and connections drives steel cost more than the length of the side return alone. Keep the calculations, any party wall paperwork and the completion certificate together for when the house is sold.
- Fitting the steel frame for a side return usually takes a few working days on site, depending on how many beams and columns there are. It is scheduled with the builder so the new space can be roofed and weathertight soon after the old wall comes down.
- Propping a side return is awkward because space in a narrow kitchen is tight and the infill side is often open ground. Props outside may stand on temporary pads or boards, set so they do not sink or shift in wet weather.
- Side returns often involve the Party Wall etc. Act 1996 in England and Wales, because the work sits right on the boundary. Building a new wall at the boundary, digging near a neighbour's foundations or cutting into a shared wall can each need notice.
How the job runs in Derby
Survey in Derby
We visit, look at the wall and what sits above it, measure the opening and note services, access and how the steel can be brought in.
Engineer's design
A structural engineer sizes the beam, padstones and any posts, and sets out the temporary support needed while the wall is out.
Building control
We submit a building notice or full plans application to Derby City Council, so approval is in place before the wall is touched.
Install and sign-off
Props go in, the opening is formed, the steel is set and packed, building control inspects it, and we make good.
Guide prices for side return extension steels in Derby
As a guide, budget £3,450–£8,350 including VAT for side return extension steelwork in Derby, based on published UK cost guides adjusted for prices in the East Midlands (-2%).
| Job | Typical guide range | What it usually covers |
|---|---|---|
| Side return extension steelwork | £3,450–£8,350 | Beams and posts along the old side wall line, propping and approvals (extension build extra) |
| Temporary works and propping | £150–£490 | Props, spreaders, needles and sole plates for a typical opening, installed and struck |
| Party wall surveyor (agreed surveyor, per neighbour) | £880–£1,960 per neighbour | Schedule of condition and award where a neighbour dissents; serving notice alone, where the neighbour consents, costs far less (England and Wales only) |
| Fire protection to a steel beam | £150–£590 per beam | Fire-rated board boxing or an intumescent coating system as specified |
Figures include our approximate regional adjustment for prices in the East Midlands (-2%) and are rounded. How these figures are worked out.
Approvals in Derby
For Derby, building control is provided by Derby City Council, or by a registered building control approver if preferred. We send them the engineer's calculations with a building notice or full plans application and book the inspections. Work done without approval can cause problems at sale and is far dearer to put right later.
Terraced and semi-detached homes often need party wall notices, because cutting into a shared wall to take a beam end is notifiable under the Party Wall etc. Act 1996. Allow at least two months for the notice period unless your neighbour agrees sooner.
Side return extension steels near Derby
- Belper 6.9 mi
- Ilkeston 7.7 mi
- Heanor 8.1 mi
- Ripley 8.3 mi
- Long Eaton 8.7 mi
- Burton upon Trent 10.6 mi
Side return extension steels in Derby: your questions
Do you cover Derby for side return extension steels?
Yes. We carry out side return extension steels in Derby and the DE1, DE3, DE21, DE22 and DE23 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.
Do you also work near Derby?
Yes. We also cover nearby towns including Belper, Ilkeston, Heanor and Ripley.
Do I need a party wall agreement for a side return extension?
In England and Wales it is very likely. Building on or near the boundary, excavating close to the neighbour's foundations or cutting into a shared wall can all be notifiable under the Party Wall etc. Act 1996. Notices are arranged through a party wall surveyor on your behalf, and we do not give legal advice.
Does a glazed roof affect the steel beam?
Yes. Glazed roofs need the beam they sit on to stay very straight under load, so the engineer may set a stricter deflection limit than for a solid roof. That can mean a deeper or heavier steel section, and the roof supplier's details need sharing early.
Do I need planning permission for a side return extension?
It depends on the house and where it is. Some side return infills can be built under permitted development, but the rules for side extensions are restrictive, and conservation areas and listed buildings add further controls. Check with your local planning authority or architect before committing to a design.