House Extension & Loft Conversion Costs in Nottingham (2026)

House extension and loft conversion costs in Nottingham (2026)

Our Nottingham prices come straight from the calculator method. National build rates per m² are multiplied by the Midlands factor of 0.98, then we add 4–7% design fees, a structural engineer (£500–£2,500), building control (£600–£1,200), the £274 certificate or £548 planning fee, and 20% VAT. Treat them as modelled budgets rather than local quotes.

Project	Size	Basic	Standard	High-end
Single-storey rear extension	20m²	£45,500 – £60,000	£55,500 – £72,500	£67,500 – £93,000
Kitchen extension with mid-range kitchen	25m²	£74,500 – £110,000	£87,000 – £125,500	£102,000 – £151,000
Two-storey extension (planning)	40m²	£80,000 – £103,000	£97,500 – £126,000	£119,500 – £161,000
Side return extension	15m²	£38,500 – £52,000	£47,500 – £63,000	£58,500 – £80,000
Rooflight (Velux) loft conversion	25m²	£20,000 – £31,000	£23,000 – £35,000	£28,000 – £41,500
Rear dormer loft conversion	30m²	£41,500 – £62,000	£46,500 – £70,500	£57,500 – £83,500
Hip to gable loft conversion	30m²	£51,000 – £72,000	£56,000 – £80,000	£68,500 – £96,500
Garage conversion	15m²	£10,000 – £15,000	£13,000 – £20,000	£18,000 – £25,500

The figures apply equally to homes in West Bridgford, Beeston, Arnold or Carlton: the building cost is the same, only the council changes. For more detail on each type, see our guides to two-storey extension costs, single-storey extension costs and loft conversion costs.

Nottingham build rates per m² (standard finish, ex VAT)

• Single-storey or kitchen extension: £2,156 – £2,646 per m²
• Two-storey extension (per m² of both floors): £1,911 – £2,352 per m²
• Side return: £2,450 – £3,038 per m²
• Rooflight loft: £686 – £941 per m²
• Rear dormer: £1,196 – £1,705 per m²
• Hip to gable: £1,450 – £1,960 per m²

Which council handles your Nottingham extension?

This is the first thing to establish, because Greater Nottingham is split between several councils with different design guidance. Nottingham City Council covers only the city itself, from Bulwell and Bestwood in the north to Clifton in the south. Many of the suburbs people call “Nottingham” are run by neighbouring boroughs:

• West Bridgford: Rushcliffe Borough Council.
• Beeston and Stapleford: Broxtowe Borough Council.
• Arnold and Carlton: Gedling Borough Council.

Your council tax bill tells you which one you are in. The national permitted development rules and the planning fees are the same everywhere in England; local design guidance, conservation areas and Article 4 directions are not.

Nottingham’s housing and the projects that suit it

Census 2021 figures from the Office for National Statistics show a city with a broad mix. In the City of Nottingham, 33.3% of households live in semi-detached houses, 27.4% in terraces and 15.6% in detached houses. Purpose-built flats account for 18.4%, slightly above England’s 17.1%, and another 4.2% live in converted houses or buildings. Terraces are more common than the England average of 23.0%, while detached homes are much less common than England’s 22.9%.

Terraced streets

Victorian and Edwardian terraces are found in inner areas such as Sneinton, Forest Fields, Hyson Green, Lenton and Sherwood. For these, the main options are a rear dormer, a side return to widen the kitchen, or a simple rooflight conversion where the roof is tall enough. A rooflight loft at about £23,000–£35,000 for 25m² costs half as much as a dormer, but it only works if there is enough headroom under the existing ridge.

Semis in the suburbs

With a third of city households in semis, and many more across the suburban boroughs, the most common Nottingham projects are single-storey rear extensions, two-storey side extensions and hip to gable lofts. A two-storey side extension needs planning permission, so the council’s design approach becomes important (see below).

Victorian villas in The Park and Mapperley Park

The Park, and Mapperley Park and Alexandra Park, are both conservation areas with large Victorian houses. The Park has its own Conservation Area Appraisal and Management Plan, adopted by the city council as a supplementary planning document in 2023. Extensions here are possible but need planning, matching materials and a designer with heritage experience, all of which add to fees.

Planning permission for extensions in Nottingham

Under national permitted development rules, a typical semi or terrace can have a single-storey rear extension of up to 3m (detached houses 4m), or up to 6m and 8m with prior approval, plus a loft extension of up to 40m³ on a terrace or 50m³ on other houses. Flats have no such rights. Get a lawful development certificate (£274) for permitted development work. A full householder application is £548. Our extension planning permission guide and loft conversion planning guide explain the detail.

Nottingham City Council

The city’s planning policies are set out in its Local Plan, with design guidance collected in the Nottingham Design Quality Framework, the council’s online design guide. The city has 33 conservation areas, ranging from the Lace Market and The Park to Wollaton Village, Clifton Village, Sherwood Rise and Old Lenton. In any of them, side extensions, cladding and roof extensions lose permitted development rights, so expect to apply for planning.

Two Article 4 directions stand out for homeowners. In Strelley, a direction made after the village estate was sold means that, in the council’s words, even minor alterations need planning permission. In New Lenton, a direction protects Devonshire Promenade. The council also publishes Conservation Areas Guidance Notes on materials and design, which are worth reading before you brief an architect.

Rushcliffe (West Bridgford)

Rushcliffe Borough Council adopted the Rushcliffe Design Code on 1 September 2025, replacing its older Residential Design Guide. It has a householder section covering context and character, neighbour amenity, extensions, dormers, outbuildings, materials and gardens. The consultation draft proposed that side extensions should not come within 1m of a shared boundary with a neighbouring house, to avoid a terraced effect. Check the adopted wording with your designer if you are planning a two-storey side extension on a West Bridgford semi.

Broxtowe (Beeston) and Gedling (Arnold, Carlton)

Broxtowe lists two Article 4 directions: one for Beeston and one for the former Beamlight factory site. Before you rely on permitted development in Beeston, confirm whether your street is affected and what the direction controls. In Gedling, applications go to Gedling Borough Council. Wherever you live, an extension on a newer estate may have had permitted development rights removed by a condition on the original planning permission, so check the house’s planning history first.

Local factors: licences, caves and access

• Skip licence (city council): £50 per application for a builder’s skip on the highway, under Nottingham City Council’s 2026/27 highway licence fees. Your skip firm normally applies.
• Scaffold licence (city council): for scaffolding on the highway up to 5m long, £245 for up to two weeks plus £90 for each extra week; up to 10m long, £285 for two weeks plus £90 a week. A returnable deposit is also charged, and the scaffolder needs £5 million of public liability insurance. A six-week licence for a 10m terrace frontage would cost £285 plus four extra weeks at £90, so £645.
• Materials on the road: storing materials on the highway is licensed separately, from £85 for the first day.
• Sandstone and caves: Nottingham sits on sandstone, and the Nottingham Caves Survey has recorded more than 700 man-made caves beneath the city, many of them old cellars. In the older central areas, ask your structural engineer whether a cave or cellar check is needed before foundations are designed.
• Suburban boroughs: outside the city boundary, Nottinghamshire County Council is the highway authority and sets its own skip and scaffold licence fees, so ask your builder to confirm them in the quote.
• Party walls: loft conversions on terraces and semis nearly always need notices; our party wall agreement guide explains the process.

Loft conversion Nottingham: which type for your house?

• Terrace with a tall roof: try a rooflight conversion first; if headroom is short, a rear dormer.
• Hipped semi: hip to gable plus rear dormer, usually permitted development outside conservation areas.
• Bungalow: a dormer on one or both slopes can add two bedrooms; see our bungalow loft conversion guide.
• Conservation area villa: a modest rear dormer or a mansard, with planning permission.

Our loft conversion cost calculator lets you compare the types for your own floor area.

Nottingham project timeline

1. Find your council and check constraints: conservation area, Article 4, any planning conditions on the house. A day’s research.
2. Survey and design: three to six weeks.
3. Planning or certificate: eight weeks is the statutory target for both.
4. Party wall notices and building control application: in parallel with planning.
5. On site: roughly 6–10 weeks for a dormer, 10–16 weeks for a single-storey extension and 14–20 weeks for a two-storey extension, depending on finish and weather.

Is extending worth it in Nottingham?

HM Land Registry’s UK House Price Index puts the City of Nottingham average at £189,547 in August 2026, 1.8% lower than a year earlier and well below the England average of £293,525. The suburban boroughs are dearer: Rushcliffe averages £329,528, Broxtowe £251,231 and Gedling £245,028. That spread changes the maths. In the city, a standard dormer at £46,500–£70,500 is about a quarter to more than a third of the average price, so overspending is a real risk. In West Bridgford, where values are much higher, an extra bedroom or a large kitchen-diner is more likely to be reflected in the sale price. Look at sold prices on your own street for houses that have already been extended. If you need to borrow, read how to finance an extension.

Ways to save on a Nottingham extension

• Use permitted development where you can and confirm it with a £274 certificate.
• Consider a rooflight loft on a terrace with good headroom; it costs far less than a dormer.
• Convert the garage before you extend. A 15m² garage conversion costs about £13,000–£20,000.
• Brief your designer on the right council’s guidance to avoid paying for redesigns after a refusal.

Nottingham extension and loft FAQs

How much does a house extension cost in Nottingham?

On our 2026 model, a 20m² single-storey extension costs about £55,500–£72,500 with a standard finish, including fees and VAT. A 40m² two-storey extension with planning costs about £97,500–£126,000.

How much is a loft conversion in Nottingham?

About £23,000–£35,000 for a 25m² rooflight conversion, £46,500–£70,500 for a 30m² rear dormer and £56,000–£80,000 for a hip to gable, including fees and VAT.

Is West Bridgford covered by Nottingham City Council for planning?

No. West Bridgford is in Rushcliffe, so applications go to Rushcliffe Borough Council and are judged against the Rushcliffe Design Code. Beeston is in Broxtowe, and Arnold and Carlton are in Gedling.

Do I need planning permission for an extension in Nottingham?

Many single-storey rear extensions and loft dormers on houses are permitted development. You need planning for two-storey side extensions, flats, most work in the city’s 33 conservation areas, and almost any alteration in Strelley because of its Article 4 direction.

How much is a skip licence in Nottingham?

Nottingham City Council charges £50 per application for a builder’s skip on the highway in 2026/27. Inside the suburban boroughs, check with your skip firm.

Will Nottingham’s caves affect my extension?

Most homes are unaffected, but more than 700 man-made caves are known under the city. In older central areas, ask your structural engineer whether a check for voids or cellars is needed.

Costs in other areas: London extensions · London lofts · Beckton · Leatherhead · Portsmouth · Maidstone · Essex · Peterborough · Bristol · Birmingham · Manchester · Leeds · Liverpool · Llanelli · Glasgow · All areas compared

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