Double Storey Extensions in Somercotes, Derbyshire

Somercotes property: what makes the work different here

Situated roughly thirteen miles north of Nottingham in the Amber Valley district of Derbyshire, Somercotes possesses a rich industrial and residential heritage. The local housing stock is diverse, featuring classic late-Victorian and Edwardian red-brick terraced properties, solid inter-war semi-detached houses, and late twentieth-century detached estates. Many of the older properties along established residential roads feature long, narrow rear gardens and relatively modest original floor plans with ground-floor-only rear offshoots. Adding a double storey extension in Somercotes is one of the most effective ways to modernise these layouts, allowing homeowners to create spacious open-plan kitchen and dining zones downstairs while adding master bedroom suites or additional family bathrooms above. However, the legacy of historical coal workings in this part of Derbyshire requires careful consideration during groundworks, often necessitating verified foundation depths or soil testing. In addition, working on older solid-wall or early cavity-wall properties demands sympathetic structural tying, careful damp detailing, and matching brickwork tones to integrate seamlessly with the existing character of the streetscape.

What double storey extensions involves

Building a double storey extension is a comprehensive structural project that transforms both floors of your home. The physical works begin with site clearance, ground reduction, and the excavation of foundation trenches, followed by pouring building-control-approved concrete footings. Below-ground drainage is rerouted, and blockwork is built up to the damp-proof course before laying insulated concrete or beam-and-block ground floors. Masonry teams then construct the cavity walls, incorporating modern rigid insulation, cavity trays, and lintels up to the first-floor level. Heavy-duty timber floor joists are installed, followed by the upper-floor external brickwork and internal blockwork. The roof structure is framed, felted, battened, and tiled to integrate flawlessly with your existing roofline. Once windows and exterior doors are fitted to make the building watertight, internal first-fix plumbing and electrical wiring are installed. Structural knock-throughs are executed using engineered steel beams, followed by drylining, plastering, second-fix carpentry, heating installations, and final connection of all fixtures ready for decoration.

Do I need planning permission in Somercotes? (Amber Valley Borough Council)

Double storey extensions in Somercotes fall under the planning jurisdiction of Amber Valley Borough Council. Under national Permitted Development rights, certain two-storey rear extensions can be built without submitting a full planning application, provided they meet strict statutory limits: the extension must not extend more than three metres beyond the rear wall of the original dwelling, must be positioned at least seven metres from any boundary opposite the rear wall, and must match the roof pitch and exterior materials of the existing building. However, any two-storey side extension, or any rear extension extending beyond permitted development parameters, requires a full householder planning application submitted via the Amber Valley planning portal. While Somercotes is generally free from restrictive conservation area overlays, individual properties may carry specific covenants or planning history that impacts development rights. Our architectural service prepares all required existing and proposed elevations, site block plans, design statements, and application forms, tracking the submission directly through the statutory eight-week determination window with Amber Valley planning officers.

Building regulations, inspections and paperwork

Every double storey extension in Somercotes must fully comply with UK Building Regulations to guarantee structural safety, fire safety, thermal performance, and proper drainage. Building control plan checks and site inspections for Amber Valley are handled by Derbyshire Building Control Partnership, the joint building control service serving the borough. Before digging begins, structural calculations for steel beams, padstones, and floor joists are submitted alongside detailed architectural working drawings for initial plan approval. During the build, an inspector carries out mandatory physical checks at set milestones: inspecting foundation trenches before concrete pouring, reviewing damp-proof courses, checking floor and roof timbers, assessing structural steel installations, and verifying insulation thickness in external cavity walls and roofs. Sound insulation between floors and fire escape windows from upper-storey bedrooms are strictly examined. On completion, Derbyshire Building Control Partnership conducts a final inspection and issues the official completion certificate. This document is essential for future property sales and confirms that the extension has been built in full accordance with national building standards.

How we work, stage by stage

We manage double storey extension projects through a structured, stage-by-stage process that gives homeowners absolute clarity from initial sketch to final completion. The journey begins with a detailed on-site consultation in Somercotes to assess your property, discuss living space requirements, and evaluate site constraints. Our architectural team drafts comprehensive plans tailored to your brief, balancing light, flow, and structural practicality. We handle all planning documentation and submissions directly to Amber Valley Borough Council, alongside preparing detailed building regulations drawings and structural engineering calculations for Derbyshire Building Control Partnership. Once statutory approvals are secured, we establish a fixed programme of work and a transparent, stage-based payment schedule. On site, our skilled tradesmen carry out groundworks, masonry, roofing, carpentry, and electrical installations under continuous project management. Regular site progress meetings keep you informed at every milestone. We maintain a tidy, secure working environment, liaise with building control inspectors at all required stages, and conclude with a thorough quality snagging review before final handover.

1. Step 1

   Initial Site Survey

   We visit your Somercotes home to evaluate site dimensions, assess structural constraints, and understand your family requirements.

2. Step 2

   Design & Approvals

   Our design team produces architectural drawings and structural calculations, securing planning approvals through Amber Valley and building control.

3. Step 3

   Foundations & Groundwork

   We excavate ground, lay approved concrete footings, install sub-floor drainage, and construct brickwork up to damp-proof course.

4. Step 4

   Superstructure Masonry

   Bricklayers construct insulated cavity walls, fit first-floor timber joists, and complete masonry up to the second-storey roofline.

5. Step 5

   Roofing & Weatherproofing

   Carpenters build the roof framework, install tiles and guttering, and fit double-glazed windows and doors to achieve weathertightness.

6. Step 6

   Structural Openings & Plaster

   We install first-fix plumbing and electrics, execute structural wall knock-throughs with steel beams, and apply smooth plaster throughout.

7. Step 7

   Second Fix & Handover

   Carpentry, sanitaryware, radiators, and electrical fittings are completed before the final inspection by Derbyshire Building Control Partnership.

What drives the cost in Somercotes

The budget for a double storey extension in Somercotes depends heavily on site-specific physical factors and architectural choices. Ground conditions are the primary initial driver; historical coal mining across the Amber Valley area can mean deeper strip foundations, engineered trench fills, or reinforced concrete rafts are required to satisfy building control. The total square meterage and footprint configuration naturally scale material and labour requirements, but the complexity of ground-floor structural alterations also plays a large role. Removing substantial load-bearing masonry to form open-plan living spaces requires heavy steel goalposts or spliced universal beams, which adds fabrication and craneage costs. Matching exterior materials to existing brickwork—particularly on older red-brick Victorian cottages or weathered concrete roof tiles—influences sourcing and procurement. Upper-floor layouts requiring multiple new ensuites or complex plumbing runs will increase mechanical and electrical expenditure. Site access on narrower residential streets can require specialised micro-excavators or tracked dumpers, slightly altering plant hire costs compared to open driveways.

Cost ranges on this page are indicative guides only, not quotations. Your figure depends on the survey, specification and site conditions.

Projects we take on in Somercotes

We construct a wide range of double storey extensions across Somercotes, tailored to the specific architectural style of each property and the unique living requirements of the household. A popular configuration is the full-width two-storey rear extension, which replaces dated single-storey lean-tos to deliver a magnificent ground-floor open-plan kitchen, dining, and living space opening onto the garden, paired with an enlarged master bedroom and ensuite on the first floor. On semi-detached and detached homes with driveway space, two-storey side extensions are frequently constructed to provide an integrated garage or home office downstairs alongside additional bedrooms above. We also build two-storey wrap-around extensions, combining side and rear additions into a comprehensive transformation that dramatically expands living floor area. Whether your home is a traditional brick terrace needing sympathetic masonry detailing or a modern detached house requiring contemporary bi-fold doors and vaulted ceilings, we build durable extensions that elevate your lifestyle.

Read the full Double Storey Extensions guide for design options, planning rules and what drives cost.

Living in the house while we work

We understand that undertaking a major two-storey extension is a significant undertaking, and many Somercotes homeowners prefer to stay in their home throughout the build. We configure the programme to minimise day-to-day disturbance. For the bulk of the schedule—during foundation digging, drainage runs, external wall bricklaying, and roof carpentry—work takes place entirely outside the existing house envelope. The existing exterior rear or side walls remain in place, acting as a sound, dust, and weather barrier until the new extension is fully watertight. When the time comes to break through and install structural steelwork, we fit heavy-duty dust screens and sealed timber partitions to protect living areas. Essential services like water, electricity, and gas are kept operational, with temporary cut-offs scheduled strictly around your daily routine. On residential roads, we coordinate skip deliveries, plant access, and trade parking carefully to maintain clear access for you and your neighbours. Daily clean-ups and strict working hours ensure the site remains tidy, safe, and respectful.

Areas we also cover near Somercotes

From our base approximately thirteen miles away, we provide complete design and build services across Somercotes and its adjoining communities. We work extensively in nearby Alfreton, delivering two-storey rear and side additions on Victorian townhouses and modern family estates. We also construct two-storey extensions throughout Jacksdale, where traditional village properties and rural cottages frequently benefit from substantial upper-floor expansions. In neighbouring Pinxton, we regularly undertake major home extensions, working closely with local homeowners to upgrade post-war and modern properties with bespoke architectural extensions. Because these areas share similar planning frameworks under Amber Valley or neighbouring local authorities, we bring deep practical familiarity with local ground conditions, council planning guidelines, and building control requirements across this entire Derbyshire and Nottinghamshire border corridor. Wherever you are located across this area, our management team provides full support from architectural concept through to final building handover.

• Double Storey Extensions in Alfreton
• Double Storey Extensions in Jacksdale

Double Storey Extensions in Somercotes: questions people ask

Next step for your Somercotes project

If you are planning a double storey extension for your home in Somercotes, we are ready to help you turn your ideas into a beautifully finished reality. Whether you already have architectural drawings or are just starting out with initial concepts, our experienced team provides clear, straightforward advice on design, planning, structural requirements, and budgeting. You can get in touch with us today by calling our team directly on 07888 885791, sending a quick message via WhatsApp to discuss your property details, or filling out the simple quote form on this page to request a callback. We will arrange a free, no-obligation initial site visit to your Somercotes home, walk through your layout options, and provide a comprehensive, transparent quotation for your project.