Design and build company London, Hertfordshire and United Kingdom

At Nuhous we have two options that we offer to our clients, One is where we design & build House extensions, Loft Conversions and another option is where we only build House Extensions and Loft Conversions. 


With the Design & Build option our highly qualified and experienced team run the whole project for you. Starting with the planning and building regulations, through the construction process and interior design, to the completion of your beautiful home.

Design and build option will give you a major advantage as we have the key experience of the process and are able to successfully complete the project for you. 

As follows please have a look at the process of the design and build.

Design and build process

1. Consultation

The visit will include site appraisal, discussing your project requirements, building project feasibility, alternative solutions to proposals, discussion of Planning and building regulation issues that effect the proposals and approximate build costs. We then provide you with a quotation for our fees.

3. Planning Permission Drawings, Design and Access Statements

Our Planning drawings service consists of fully investigating your Local Authorities planning guidelines, producing proposed plans, elevations, site layout, cross sections, outline specification and a location plan and producing a Design and Access statement if required. Obtaining and completing planning application forms on your behalf. Liaising with your local authority and keeping you informed of any feedback. With these set of drawings you will be able to: Make a Planning application submission Make a Permitted Development application to receive a Certificate of Lawfulness for your extension or loft conversion.

5. Interior Design

this is optional this can depend from project to project and how involved you would like us to be.

7. Construction and Completion

Once the project starts on site the construction process it will be monitored and inspected all the time, this where all the teams will focus on your project to get it completed at high standard.

2. Measured Surveys

Building projects that involve home extensions, home renovations and loft conversions will require a full measured survey of the existing property and surrounding site. We can then produce a set of accurate survey drawings using CAD software, which will include plan, elevation and section drawings.

4. Building Regulation Drawings

Once planning permission has been granted the next stage is Building Control. These drawings are very detailed and show exactly how and with what materials the new building or extension is going to be constructed. A full set of Building Regulation drawings will include proposed plans, elevations, cross sections, details, full specification detailing construction methods, workmanship standards and quality of materials.

6. Structurals

When all approvals have come in the structural process will start, this is an important part of the design as that will present a clear scope of how to achieve the construction of the project, The project will not be able to start without the structural drawings.


We have designed and completed successfully over 900 design projects, to put that into figures worth, that is over £45.5 million in property development that our customers have benefited from and their properties. We are confident that we will obtain planning permission for your scheme. We operate our architectural design services throughout London, Hertfordshire and United Kingdom. Our fixed fee for loft conversions and house extensions pricing structure contains key elements that you would need to build your project. The key elements are: planing application, building regulations and structural engineering

Clients that have started our consultation services do not need to commit to our construction services, this means there is no commitment beyond our design phase and customers are free to tender their designs to other contractors. Either way you will automatically receive fixed price tender from Nuhous for construction phase of your project.

Our Architectural Design Packages

Book your 30 minute consultation

Feasibility Concept


Excellent option if you are unsure  about what can be possible, it will explore possibilities or the development.



Ideal for permitted development and planning application support, where existing property plans can be supplied. 

Planning & Survey


Included is the on-site measured survey. Ideal for projects with no existing drawings available.

Building Regulations


Detailed side of the drawings for building control approval purposes.

Excluded from vat and prevailing rate. T & Cs apply.

In the past 4 weeks we have 112 applications approved

Book a free architectural advice call

Free 30 min call to help you with your project, book now.

What to do next?

From this point you can get a free quote from us, get free advice about your loft conversion or house extension, give us a follow on social media just search "nuhous"

Get a free quote

Get a free quote for your project, design and build of the loft conversions or house extensions. Fully detailed quote.

Get free advice

You can speak to us about your loft conversion or house extension project over the phone. Book your free 30 minute architectural advice,

Fixed fee

We have fixed fee architectural design packages for loft conversions and house extensions, find out more.


Full construction services including loft conversions and house extensions in London and surrounding areas.


Architecture services, gain the understanding of the process and what is required to make your project a success.

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We have fixed fee architectural design packages for loft conversions and house extensions, find out more.


Architecture services

United Kingdom

Architectural design services, architecture services, planning or building regulations drawings, 

project management, design and build company for loft conversions or home extensions... 

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Architectural design services, project management, design and build company for loft conversions, house extensions and new house builds. Architecture services online.

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