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House extensions

House extensions remain a popular solution for homeowners with limited storage and space. Countless homeowners have chosen us to realise the full potential of their property. Our extensions aim to utilise the land surrounding the home, constructing extensions in a variety of designs to increase the amount of living space and tailoring rooms to suit your requirements.

From the first point of contact, ATK Building Solutions guarantees a friendly, highly professional service. We understand the thought and time that goes into choosing a building contractor, so we do everything possible to repay that decision. We have the manpower and resources to provide start-to-finish project management for house extensions. From designs and planning through to the physical construction work, we ensure a smooth, efficient project with the convenience of a single contractor.

Our goal is to provide the best service to our clients; working with care, respect and cleanliness as a priority. We hold membership with the FMB and have had our techniques, results and integrity as a business assessed to the highest standards.


Single storey extension in Collingham


Every extension has a unique quality, as a standard we will adhere to the following essential steps:

  • Site survey, advice and quotation with no obligation or charge

  • Liaising with the local authority to secure planning approval where needed

  • Serving neighbouring properties with party wall awards as required

  • Forwarding structural calculations to building control

  • Alterations and steelwork ahead of the physical build

  • Construction of house extensions by our building contractors

  • Complete first- and second-fix plumbing and electrics

  • Remedial plastering followed by painting and decorating

  • Installation of appliances, flooring, tiles and fittings

  • Final building control inspection before handover

Single / Double storey Extensions

ATK Building Solutions undertakes all types of single- and double-storey extensions. Our trusted in-house team has the expertise to work with any specification, whether a single-storey or a two-floored structure, no matter the complexity. Be it a side-return, wrap-around, rear-facing or any other extension, we can help you realise your property dream. We also carry out disabled facilities grant work in line with local authority recommendations.

Below, we have provided a brief introductory guide to both single- and double-storey extensions. This provides a starting point which one of our building contractors can develop with you during an initial consultation in the comfort of your own home

Single storey extensions

These simply extend the existing ground floor further out into the land surrounding the property. With one wall adjoining the original structure, we place the new space at the side or rear of the home, or a combination of both. Common uses for single-storey extensions include larger kitchens, dining areas, bigger or second living rooms, home offices or an additional bedroom.

Unsurprisingly, single-storey extensions have a smaller construction cost when compared with double-storey alternatives. With less materials and labour combined with a shorter construction time, single-storey additions make the ideal solution for those on a smaller budget. Like any reputable building contractor, we can factor in the possibility of further extension in the future by laying foundations capable of supporting two floors.

Single-storey extensions generally represent a more straightforward process. They are more likely to qualify for Permitted Development and less likely to require a new boiler, cause access problems or annoy neighbours.

Double storey extensions

These are much larger structures which require a more substantial investment and a longer timescale for completion. They work on the same principle as single-storey extensions in that they create new living space adjoining the current home, albeit upstairs and down. With two new floors, property owners have a much wider scope for improvement. The upper room usually takes the form of a new bedroom, although bathrooms also remain popular. For those looking to increase resale value, a double bedroom with en suite facilities makes the best combination.

Double-storey extensions place additional demands on boilers and in some cases, existing boilers may not be able to cope with this and could need replacing. Double-storey house extensions have less chance of falling under Permitted Development requirements when compared with single-storey structures, meaning they often need planning approval. After an initial consultation and site visit, we will ensure we clarify your own personal situation and any requirements for planning permissions so we can help you realise your property dream.

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