We design and build loft conversions and home extensions in London and Hertfordshire, UK
What people say
about us

Nuhous Reviews

4.8 out of 5 based on 62 Reviews

"Nuhous are great providing a quick turnaround for our planned building project. Steven & Alexander designers was brilliant"

Review by John Reeve

Select services you require

Design and Build

Redesign and re-style your house or flat, so that you can enjoy your home the way that you want to. We can help you make your dream inspo home a shining reality.

Architectural Design

Architectural design services for loft conversions and house extensions. We really listen to what our clients needs are and design around them. Start your dream project today.


Home Extension

Create beautiful new spaces to suit your home. Layout design to make the best use of any space! Dreaming of an open plan kitchen with an oversized island? We can make it happen!


Loft Conversion

Loft conversions add more bedrooms to your property and a new bathroom! Or perhaps you are dreaming of a spacious master suite with a walk in wardrobe and ensuite? 

Architecture Design

Type of home extensions, loft conversions and renovations we design and build

  • Rear home extension

  • Side home extension

  • Side and rear extension

  • Wraparound 

  • Side return 

  • Two storey side

  • Two storey rear

  • Two storey wrap

  • First floor extension

  • Upward extensions

  • Dormer loft conversion

  • Hip to gable loft conversion

  • L shaped loft conversion

  • Mansard loft conversion

  • Velux loft conversion

  • Flat or apartment renovation

  • House renovation

  • Commercial to residential conversion including design and build 

Nuhous architectural design, build, survey, project management and construction company London, United Kingdom 

Nuhous specialist architecture services, surveying, design and build services and project management services for loft conversions, home extensions and new builds.

First class client service with high quality craftsmanship at an affordable price, architecture services, surveying, structural drawings, construction and project management for the duration of your design and build.

Choose the service package that suits you:

Design Phase- from architectural design, planning, building regulation approvals, surveying, party wall agreements, interior design, structural engineering, administration and project management. We do all the consultation work to get your loft conversion or house extension approved and legal, ready for the construction phase. 

Build Phase  - we do the construction - we build your loft conversion or house extension, you supply completed design, planning approvals, party wall agreement and approved building regulations. 

You can choose both design and build package or individual packages.

Nuhous Design And Build Company London

Why use Nuhous for your project?

  • Quality.

    Quality and attention to detail as standard.

    We pay attention to every detail, this is very important because we know that the difference between a mediocre job or an outstanding finish is in the details! From the very start we are focused on delivering a quality end product that you can be proud of. We understand that your house deserves the best, that is why we source quality materials from our suppliers that not only look fantastic but last many years to come so that you can have the look you desire and long lasting value for money.

  • Experience.

    Bespoke architectural design, survey and project management

    We are very proud of our excellent track record! This can be seen from our projects portfolio and reviews written by our customers. All of our customers can be confident in our knowledge and expertise. We pride ourselves on delivering beautiful spaces that work on a practical level and meet all of your daily needs. We have been delivering loft conversions and house extensions across London and Hertfordshire for over 14 years and we'd love to make your project our next success story.

  • Reliability. 

    You can count on us to get the job done

    Our customers can rest assured in our services. We have built Nuhous on the key values of trust, transparency, reliability and commitment to every one of our projects.

    All of the projects are eligable to receive an optional LABC 10 or 12 years warranty and a 12 months workmanship guarantee as standard.  

More about our services....
Free consltation call

Free consultation call

You can make a booking online at a time and date that suits you. In our online portal you will be able to manage your booking and send any requests or updates... Our free consultation call has many benefits to get your project off to a successful start.

Measured building survey

Measured building survey

Site measured survey. We complete a thorough measured survey of your property so that we can begin the design phase. Any project involving the alteration or extension of an existing property will require an accurate measured survey of the existing building which will enable floor plans, elevations and cross sections to be produced.  These will then be used and developed at a later date to produce schematic designs for your new space.

Instnat online quote

Instant online quote

Use our online quote calculator and find out what your project will cost. Instant architectural services costings and instant design and build estimate for loft conversions, house extensions and renovations.

Architectural designer

Architectural designer

We offer a comprehensive range of architectural services and surveying including; measured building surveys, space planning, scheme design, planning applications, party wall survey, project management, planning application and working drawings. Our architectural design and surveying services are focused on loft conversions, home extensions, renovations and new build homes in the United Kingdom.

Staged payments

Staged payments

Our payments are transparent.. As the work progresses you make periodic payments that match up with the stage that the project has progressed to. Our payments are broken down into staged payments that are fair and agreeable.

Design and Build Complete Services

Design and Build

With our design and build process you can rest assure we will complete your loft conversion, home extension or new build from start to finish. We are a one stop destination for all the required design phase and construction phase services required to design, survey, build and project manage your new development. Since our inception over 14 years ago we are a specialist in our field for design and build of residential homes in London, United Kingdom.

Free consultation call

We would like to hear about your project and how we can help, book now.

  • Free Advice Call Monday - Friday 9AM - 8PM and Saturdays 9AM - 5PM

    30 min

Explore and be Inspired 

Nuhous design and build process

  • Contact Nuhous

    1. Contact

    Use our online form to book a consultation call at a time and date that suits you best. We look forward to gaining an in-depth understanding of what you would like to achieve an how we can help you...

  • Consultation wth Nuhous

    2. Consultation

    The consultation call with a Nuhous specialist who will be happy to discuss with you what the aims, requirements, desired features, budgets, timescales, possibilities of your project and our process in more detail

  • 3. Quote

    During the consultation call you will receive a quote based on your requirements. You will have the option to go ahead with our services  once you have your quote and are happy.

  • Measured survey by Nuhous

    4. Measured Survey

    We will visit your property and survey all the required measurements for us to complete accurate drawings of the proposed development.

  • Propoed design by Nuhous

    5. Proposed Design

    We will then produce schematic drawings for your approval and discuss any changes that you would like to make before the submission for planning.

  • Planning Permission

    6. Planning Permission

    We will submit the planning application on your behalf and negotiate with the local planning office to get the best result for you.

  • Building regulation

    7. Building Regulation

    Building regulation approval drawings, once all passed you will be ready for construction.

  • 8. Structural Calculations

    One of our fully qualified structural engineers will produce structural drawings. This is an important part of the design, it will present a clear scope of how to achieve the construction of the project.

  • Party wall agreements

    8. Party Wall Agreements

    Generally any structural alterations within 3 meters of a party wall will require a party wall agreement and notices.

  • Project management

    9. Project Management

    Take the uncertainty and risk away from your project. we can project manage the construction process on your behalf

  • 10. Construction

    We build your loft conversion, home extension, renovation or new build. With our team of builders, carpenters and trades we deliver high quality construction services.


  • 11. Finishing 

    Once construction is complete the snagging specialists will carry out detailed walk arounds of your new space, listing any small finishing touches for revision to make your project perfect.

Architectural design and planning

Architectural Design and Planning

We take great passion in architectural design. Our experienced designers work closely on each project to meet the requirement and relevant approvals from planning. Our designers will listen carefully to your objectives, aims and dreams for the end result of your new space. For example finding out what your storage needs are so that these can be incorporated into the design. "Recognizing the need is the primary condition for design" - Charles Eames

Our design phase has a fixed fee solution so that you have clarity of the costs from the outset. Our architecture services online are nationwide in the United Kingdom.


During the design phase you will have a few stages and we will be there with you for all of them. We attend your property and survey with detail and accuracy for all the required measurements. This is called the site measured survey and ensures that your plans will be accurate. We believe that it is preferable for us to complete this for you so that you have the peace of mind that all the measurements and drawings are correct. 


The first step for all of our clients is a free consultation call, from this we will produce you a quote. If you are happy with this and ready to go ahead we will come to your property and do a full site survey. From this we will produce planning permission drawings, building regulation drawings, structural calculation drawings and party wall agreements.

Home extensions design and build

The most popular house extensions are the single storey rear house extensions. Either with a flat roof or pitched roof that would include velux windows, lantern or alternatively skylights. The most popular use for single storey house extensions are to house open plan kitchen, dining and living areas. 

Wrap around house extensions

Side return house extensions

Two storey house extensions to the side and rear

Single storey rear house extension just to name a few..

Loft conversions design and build

There are many types of loft conversions and house extensions in the United Kingdom, with varying degrees of popularity in different areas.


Five main types of loft conversions:


Dormer loft conversion

Hip to gable loft conversion

L shaped loft conversions

Mansard loft conversions

Velux loft conversion


Project management 

Nuhous project management services for your loft conversion, home extension or new build project. Our construction management guides you through the process of design, planning and construction.

Project management services: 

Construction management

Quality control

Total design and build services

Tendering and selection

Nuhous-project-managment -diagram.jpeg

Nuhous customer feedback

What are people saying about Nuhous

"Nuhous has delivered on time and within the budget. Hard work and time keeping was spot on. We had asked them to do more work than originally wanted and we are happy with the quality of the work."

Steven Watts

Explore further

From this point you can get a free quote from us, get free advice about your loft conversion, home extension, new build, give us a follow on social media just search "nuhous" to stay up to date with our news

Consultation call

Free consultation

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

Instant quote

Get a free quote

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

Knowledge Hub

Find out about planning permission, building regulations or our blog and news about home style and living.


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

Design & Build

A complete service from design phase to construction phase and finishing, we will design and build your entire project 

Project Management

Our construction management process for your loft conversion, home extension or new build. We build on your behalf.

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