Rear Extensions • Netherfield, Nottinghamshire
Netherfield rear extensions: design, approvals and build
If you own a house in Netherfield and are weighing up a rear extension, this page sets out how we approach the work locally, what decides the planning route, and what to expect on site. Extending the back of the house into the garden — single or double storey — most often to create a kitchen-diner or family room that connects to the outside. We handle design, structural engineering, approvals and construction as one contract, so the decisions that carry cost risk are made before you commit to a price rather than discovered once work has started.
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Rear Extensions in Netherfield: how we approach the work
Our rear extension service in Netherfield starts with a measured survey of your house rather than a generic quotation. Extending the back of the house into the garden — single or double storey — most often to create a kitchen-diner or family room that connects to the outside.
The technical crux on most Netherfield projects is foundations, the beam over the opening into the house, daylight to the middle of the plan and drainage under the footprint. We resolve these on paper first — with a structural engineer where the work needs one — and price the job on what is actually there.
Planning in Netherfield: Single-storey rear extensions are commonly permitted development within depth and height limits; larger depths use the neighbour consultation scheme, and two-storey schemes usually need an application. We check the constraints for your specific address, including any planning history, and tell you plainly which route applies before drawings are commissioned.
Why Netherfield homeowners use a local design and build team
We are a local design and build contractor, not a national lead-generation site. Netherfield is roughly 4 miles from Nottingham, which means the same team that surveys your house is the one that designs it, prices it and builds it.
Cost is driven by depth and width, single or double storey, glazing to the garden, roof type and rooflights and internal re-planning. We do not publish a rate per square metre because it misleads more often than it helps; you receive an itemised, written fixed-price quotation after the survey so you can see what each element costs and what changes it.
We do not invent projects, reviews or statistics to fill a page. What we can promise is a written programme, weekly updates, building control certification handed over at the end, and a twelve-month defects period during which we return to put right anything that fails.
Planning permission in Netherfield: Gedling Borough Council
The local planning authority for Netherfield is Gedling Borough Council. Any application for your rear extension — householder planning permission, a lawful development certificate or prior approval — is submitted to Gedling and decided against its adopted local plan and national policy. Applications are made through the council's own planning pages or the national Planning Portal, where the current householder fee is published.
Single-storey rear extensions are commonly permitted development within depth and height limits; larger depths use the neighbour consultation scheme, and two-storey schemes usually need an application.
Permitted development: Work that stays inside the size, height, position and materials limits set nationally in the General Permitted Development Order needs no planning application. The limits are tighter on flats, on houses whose rights have been removed by a condition or an Article 4 direction, and on land in a conservation area, National Park or World Heritage Site.
Party walls sit outside the council process entirely. Not a council process at all: the Party Wall etc. Act 1996 is a private notice served on the neighbour when work affects a shared wall, cuts into it, or excavates near their foundations. It runs alongside planning and building control, and being told about it late is what usually delays a start on site.
Before anything is drawn we check your address for the things that change the route: whether permitted development rights have been removed by a condition or an Article 4 direction, whether the property is listed or in a conservation area, any earlier planning decisions on the site, and the position of boundaries and highways.
In practice the order is: constraints check → measured survey → design that fits the route we have identified → submission to Gedling where an application is needed. Where the work is permitted development we recommend applying for a lawful development certificate, because it is the document that proves the position to a future buyer's solicitor.
Building regulations and building control in Netherfield
Planning and building control are separate approvals. Even where your rear extension in Netherfield needs no planning application, the building regulations still apply, and the work has to be notified. For Netherfield that means Gedling Borough Council's building control team, with the service moving to the Erewash-hosted building consultancy from 1 June 2026, or a registered building control approver of your choice. That team can be contacted on 0115 901 3740 or at buildingcontrol@gedling.gov.uk. We make the submission and manage it for you.
Regularisation: The retrospective route for work already carried out without approval. Openings usually have to be exposed again so the inspector can see what is behind them.
Foundations, the beam over the opening into the house, daylight to the middle of the plan and drainage under the footprint. Those are the elements building control looks at, alongside insulation and airtightness, fire safety and escape, ventilation, drainage, glazing, and the safety of electrical and any gas work.
Inspections happen at set stages rather than all at the end — typically excavation and foundations before concrete, drainage before it is covered, the structural frame or beams once installed, insulation and damp proofing before they are hidden, and a final inspection on completion. We book these and meet the inspector on site so nothing is buried before it is signed off.
At the end you are handed the building control completion certificate, structural calculations, electrical certification, gas paperwork where relevant, and any planning or lawful development documents. Keep them together: this is the pack a buyer's solicitor asks for when you sell.
Council contacts for Netherfield
Gedling Borough Council is the planning authority. Building control is handled by Gedling Borough Council's building control team, with the service moving to the Erewash-hosted building consultancy from 1 June 2026.
- Planning
Details as published by the council. Fees and processing times change, so check the council's own page for the current figures — or let us handle the submission for you.
The process, step by step
1. Site visit in Netherfield: we measure, look at the constraints — boundaries, drainage, structure, roof — and talk about what is not working in the house now.
2. Options and cost range: sketch options with an honest range, before detailed drawings.
3. Approvals: permitted development check, lawful development certificate or planning application as your address requires, plus building control submission.
4. Engineering and fixed price: structural calculations completed, then a written fixed-price quotation with a stage programme.
5. Build: roughly ten to eighteen weeks on site for single storey. Yes; the opening into the existing rooms is the last structural task.
6. Completion: snagging closed out, building control completion certificate issued, defects period begins.
Types of rear extensions we take on in Netherfield
In Netherfield and the surrounding area we take on kitchen-diner rear extensions, family room extensions, glazed garden rooms, double-storey rear extensions, extensions with utility rooms and extensions replacing conservatories. Housing stock varies street by street across Nottinghamshire, so each project is designed for the actual house rather than adapted from a standard drawing.
Read the full Rear Extensions guide for design options, planning rules and what drives cost.
Areas we cover near Netherfield
From Netherfield we also cover Carlton, Colwick and Burton Joyce, and the wider Nottinghamshire area within roughly twenty-five miles of Nottingham. If you are just outside Netherfield, tell us the postcode and we will confirm.
Talk to us about your Netherfield project
The useful next step is a conversation about your actual house. Call us or send a WhatsApp message and we will arrange a visit to Netherfield, look at the constraints properly, talk through the planning route for your address and follow up in writing with options and a realistic cost range.
Rear Extensions in Netherfield: questions homeowners ask
How long does a rear extension take in Netherfield?
On site, roughly ten to eighteen weeks on site for single storey. Design, engineering and approvals before that usually add several weeks to a few months depending on the route, which is why we start the approvals process early.
How much does a rear extension cost in Netherfield?
It depends on depth and width, single or double storey, glazing to the garden and the finish level. We do not quote from a rate per square metre; after a survey of your Netherfield property you receive an itemised fixed-price quotation.
Can I stay in the house during a rear extension?
Yes; the opening into the existing rooms is the last structural task.
Do you handle building control for work in Netherfield?
Yes. We notify building control — Gedling or an approved inspector — provide structural calculations where required, meet the inspector at each stage and hand you the completion certificate at the end.
Which areas near Netherfield do you cover?
Carlton, Colwick and Burton Joyce and the rest of Nottinghamshire within roughly twenty-five miles of Nottingham. We are based in West Bridgford.
How much garden will I lose?
That is a design decision as much as a planning one. We show the footprint on a plan of your actual garden so you can judge the trade-off before drawings are developed.
Can a rear extension replace a conservatory?
Yes, and it is common. The new extension is built to full insulation standards, so the room is usable all year.
Is a party wall agreement needed for a rear extension?
It depends on the work rather than the address. Cutting into or building against a shared wall, or excavating close to a neighbour's foundations, brings the Party Wall etc. Act into play and notices have to be served before work starts. We flag it at design stage in Netherfield so it never becomes a mid-build delay.
What happens if there is a drain or manhole in the way?
It is common, and it is not a reason to abandon the scheme. Building over or close to a public sewer needs agreement with the water authority, and a manhole can often be relocated or fitted with a sealed double cover. We survey the drainage before pricing your Netherfield rear extension so the solution is designed in, not improvised.
How do trees and ground conditions affect the foundations?
Clay soils and nearby trees usually mean deeper foundations, and the depth is set by the ground conditions and root influence at your address rather than by a standard detail. Foundations, the beam over the opening into the house, daylight to the middle of the plan and drainage under the footprint. We establish this before the fixed price so the foundation depth is not an open-ended extra.
What insulation and energy standards will apply?
Current building regulations set the standards for insulation, airtightness, glazing, ventilation and heating for the work, and they are checked by building control rather than left to the builder. The specification we quote for a rear extension in Netherfield is written to meet them, and the detail is in your quotation rather than assumed.
Who prepares the drawings and structural calculations?
We do, as part of the same contract — measured survey, design drawings, planning submission where needed, and structural calculations from a chartered engineer where the work is structural. You are not left coordinating an architect, an engineer and a builder who have never spoken to each other.
How is access and parking handled on a Netherfield street?
We agree access, skip position, material storage and working hours with you before we start, and let immediate neighbours know. Where the street is narrow or parking is restricted we plan deliveries around it, and any permits required for a skip or scaffold on the highway are arranged in advance.
Do I need planning permission for a rear extension in Netherfield?
Single-storey rear extensions are commonly permitted development within depth and height limits; larger depths use the neighbour consultation scheme, and two-storey schemes usually need an application. We check the planning history and constraints for your specific Netherfield address before advising, and prepare the application or lawful development certificate where one is needed.
Which council decides a planning application in Netherfield?
Gedling Borough Council is the local planning authority for Netherfield. We prepare the drawings and supporting information to the standard Gedling expects and submit the application on your behalf.
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Planning rear extensions in Netherfield?
Call or WhatsApp for a site visit. Written options and an honest cost range, no pressure.