Planning Permission & Extension Drawings—Approved Faster in London & Milton Keynes
At Al-Haitham, we specialise in creating exceptional house extensions services that bring your dreams to life. Imagine having the extra space you've always wanted, tailored specifically to your needs and designed with elegance and style.
Our home extensions in the UK are the perfect solution for homeowners who want to expand their living space without the hassle and cost of moving. Whether you're looking to add a spacious new kitchen, create a luxurious master suite, or build a versatile home office, our expert team is here to make it happen.
Extend Your House with Ease

Your Guide to UK House Extensions! 🏡
This presentation is designed to help you explore the incredible possibilities for expanding your home. Inside, you'll find detailed information on various extension types—from single and double-storey additions to loft conversions and garden annexes. We'll cover everything you need to know, including:
- The key benefits and advantages of each extension type.
- Estimated costs and potential value added to your property.
- Planning permission requirements and typical timelines.
- Creative ideas for how to use the new space.
Expand Your Home: Single Storey Rear Extensions! 🏡
Unlock the potential of your UK home with a versatile and value-adding single-storey rear extension!
Expand Your Home: Double Storey Rear Extensions! 🏡
Maximise your living space and property value with a double-storey rear extension in the UK!
Expand Your Home: Single Storey Side Extensions! 🏡✨
Utilise unused side space with a single-storey side extension, perfect for narrow plots and adding practical room!
Expand Your Home: Double Storey Side Extensions! 🏡✨
Significantly increase your property's footprint and value with a double-storey side extension in the UK!
Expand Your Home: Wraparound Extensions! 🏡✨
Transform your home with a wraparound extension, utilising both rear and side space for dramatic impact!
Expand Your Home: Loft Conversion with Rear Dormer! 🏡✨
Transform your unused attic into valuable living space with a loft conversion, often with a rear dormer for maximum headroom!
Expand Your Home: Garage Conversion! 🏡✨
Transform your underutilised garage into valuable living space without extending your property footprint!
Enhance Your Home: Front Porch Extension! 🏡✨
Add charm, security, and practicality to your home with a welcoming front porch extension!
Expand Your Home: Garden Annex! 🏡✨
Create independent living quarters or versatile extra space in your garden with a modern annex!
UK Home Rooms (General Overview)
The UK home is a blend of practical and personal spaces, with both internal and external areas serving distinct functions that contribute to the overall comfort and value of a property. From the foundational structure of the house to the outdoor spaces that extend its living area, each room and zone is a key part of the home's ecosystem. The following provides a detailed overview of common rooms in UK homes, both inside and out, including:
- Brief about each room
- Pros & cons
- Best location & why
- Relation to other rooms.
This page is part of Al-Haitham’s “UK Home Common Rooms” guide and explores the main ground-floor spaces in British homes—such as:
Kitchen - Living Room (or Lounge) - Dining Room - Utility Room - Guest Suite - Home Office/Studio - Snug Room - Boot Room/Cloakroom/Downstairs Toilet - Garage - Pantry Room - Playroom for Children/Teenagers - Open-Plan Kitchen/Diner - Bright & Airy Living Room - Downstairs WC/Shower Room - Additional Storage Room - Sun Trap/Reading Nook - Informal Lounge - Hobby Room/Studio - Utility Room/Laundry Room - Large Playroom/Games Room
Explores the typical upstairs spaces in UK homes:
Bedroom - Bathroom - En-suite - Attic/Loft - Dressing Room - Walk-in Closet Room - Master Suite
Focuses on connective areas such as:
Hallway - Landing - Entrance/Hallway - Front Porch
Covers optional, flexible spaces like:
Home Swimming Pool - Home Cinema/Media Room - Hobby Room/Studio - Home Cinema/Media Room - Cozy Garden Room - Garden Annexe - Shed - Home Spa - Basement/Cellar - Teenage Den/Young Adult Pad - Home Gym/Yoga Studio

Home extension types in the United Kingdom:
- Single-Storey Rear Extension
- Double-Storey Rear Extension
- Side Extension
- Wraparound Extension
- Basement Extension
- Garage Conversion
- Loft Conversion and rear dormer
- Conservatory
- Garden Annex Extension
- Front Porch Extension

Home extension planning permission is required for significant alterations or additions to a property.
Minor extensions, however, may fall under permitted development rights, allowing certain changes without formal approval.
Homeowners should check local guidelines and submit a planning application if necessary before proceeding with a substantial home extension.

Home extension structural calculations and drawings are essential components of the planning and construction process.
These detailed documents provide the necessary engineering data to ensure the proposed extension is structurally sound and complies with building regulations.
A qualified structural engineer typically prepares these calculations and drawings, outlining key details such as load-bearing elements, materials, and construction methods.
Home extension building regulation drawings are essential documents submitted to the building control for approval.
Prepared by professionals, these drawings detail the proposed construction, ensuring compliance with building regulations by specifying key structural and safety.
House investment and development in the UK is a dynamic and lucrative sector, driven by high housing demand, diverse market opportunities, and a robust regulatory framework
Flat conversions and Houses in Multiple Occupation (HMOs) are popular and potentially lucrative house investment strategies in the UK
Al-Haitham is thrilled to partner with A S Idea Design, a premier design consultancy specializing in Design, Planning, and Consulting. Together, we’re redefining interiors with a perfect blend of style and functionality tailored just for you!
At Al-Haitham, we're committed to helping you turn your vision into reality. Take advantage of our free 3D feasibility study to explore the full potential of your property.
In the UK, a pre-application is an informal process where you can discuss your proposed development with your local planning authority before submitting a formal planning application.
Al-Haitham is pleased to offer:
- Initiate tender package.
- Internal tender package.
- External tender package
- Contract administration.
- Kitchen and bathroom supply.
- Build/ construction.
- Build over agreement.
- Party wall agreement.
Dedicated to Your Architectural Needs
Innovative Solutions for Every Vision
At Al-Haitham, we understand that architecture is not just about buildings; it's about creating spaces that resonate with your lifestyle and aspirations. Based in London, UK, our team of talented architects and designers is dedicated to delivering efficient and creative solutions tailored to your unique needs. Whether you're looking to build your dream home, renovate an existing space, or require bespoke architectural services, we provide a comprehensive approach that combines functionality with aesthetic appeal. Our passion for architecture drives us to explore innovative concepts that elevate each project, ensuring that your vision is realized with precision and care.
Transforming Outdoor Leisure: A Bespoke Spa, Pool & Entertaining Space:
Luxury Oak-Framed Pool & Spa Retreat with Outdoor Entertaining Space!
The proposed project involves replacing an existing outbuilding with a high-quality oak-framed structure that includes a detached swimming pool, spa area, and BBQ space. The design features bi-fold doors, rooflights, and oak-framed windows to maximise natural light and ventilation throughout. Finishes such as reclaimed bricks and timber detailing will complement the main house, creating a functional and visually striking leisure space.
Enhancing a Four-Bedroom Home with a Front Porch Extension and New Ground Floor WC
Transforming the Entrance Experience with a Stylish Porch and Adding a Convenient Ground Floor WC
This project involved enhancing a spacious four-bedroom home, which already benefits from a loft conversion with a rear dormer and a large rear ground floor extension.
Smart, Stylish & Spacious: A Total Home Upgrade with Loft, Rear & Garden Extensions
Luxury Family Living Reimagined: Full Home Renovation & Multi-Room Expansion
This proposal involves a full transformation of a traditional four-bedroom home in London, including a spacious rear extension, garage conversion, and loft development. The new design introduces a modern open-plan kitchen/living/dining area, additional guest rooms, home office spaces, and improved access to natural light through rooflights and large windows. A garden annex office and front porch complete the redevelopment, creating a functional, stylish, and future-ready family home.
Completed Home Transformation in High Wycombe
A Stunning Revamp of Space and Light!
This charming 3-bedroom semi-detached house in High Wycombe has undergone a breath taking transformation, blending modern design with functional improvements to create a truly beautiful living space.
Charming 4-Bedroom Semi-Detached Home in Birmingham
Exciting Transformation Plans!
Get ready to reimagine this 4-bedroom semi-detached house with a stunning makeover that enhances both functionality and style. From converting the garage into a bright and practical home office to creating a spacious open-plan living area, these proposed changes will bring a fresh, modern touch to the property. Discover how this transformation can turn the house into a perfect blend of comfort and contemporary living!
Transforming a Semi-Detached Home in Hounslow
A Stylish Double-Storey Extension and Loft Conversion!
Imagine transforming a charming semi-detached home in the heart of Hounslow into a spacious, modern retreat designed for comfort and style! This exciting project will unlock the full potential of this 3-bedroom home with a carefully planned series of extensions and renovations.
We cover almost everywhere in the UK
WhatsApp: +44 (0) 7404086195
Email: contact@al-haitham.co.uk
Address: Office F7, Gloucester House, 399 Silbury Blvd, Milton Keynes MK9 2AH
300+
Projects Completed
200+
Happy Clients
20
Years of Experience
Testimonials
At Al-Haitham, we’re always striving to provide the best possible service, and your feedback means a lot to us.
We worked with Al-Haitham on the architecture and structural engineering aspects of our house planning application and had an excellent experience. The team was professional, responsive, and very detail-oriented throughout the process. They guided us clearly through the planning requirements, produced high-quality drawings, and were quick to incorporate our feedback.
What stood out most was their ability to balance creative design with practical engineering solutions, ensuring everything met regulations while still reflecting our vision for the house. Communication was always smooth and timely, which gave us confidence at every stage.
I would highly recommend Al-Haitham to anyone looking for reliable architectural and structural support on planning applications or home projects :)
Jacqueline Jackson
I’ve worked with Al-Haitham team on a few projects and always found them to be quick to respond and a pleasure to work with. I would def recommend them if you have an upcoming project that needs his services.
Brett Vickerman
I had an excellent experience with Al Haitham Agency. They offered me a free consultation and follow-up, which was incredibly helpful. I truly appreciate their professionalism, support, and genuine willingness to help. Highly recommended for anyone seeking reliable advice and services
Mohamed Hamed
Working with Al-Haitham was a great experience. He was incredibly helpful throughout the entire process, always attentive to our needs and quick to offer creative, practical solutions. His professionalism and eye for detail made everything run smoothly. Highly recommended
Sam Wjm
I had a free consultation with Al Haitham Agency and he was very helpful, sincere and knowledgeable, highly recommended 👍
Mo Gaafar
We had a nice experience with Haitham office designs our new house renovations and extension
AGRO PHARMA
Haitham technical knowledge is outstanding. He navigated complex challenges with ease and provided detailed plans that ensured smooth execution by the construction team.
Mostafa Mahdy
Al-Haitham is an outstanding architect. He perfectly combined functionality and aesthetics, delivering a home that exceeded our expectations. Highly recommended!
Mohamed Moustafa
Their ability to seamlessly integrate modern design elements with sustainable practices is commendable, ensuring that our project is not only beautiful but also environmentally responsible.
Kadhum S
I cannot speak highly enough of AL-Haitham and their team. After a disastrous experience with a previous architect, I was apprehensive about starting the process again. However, from the moment I contacted AL-Haitham , I knew I was in good hands.
Not only did they take the time to understand the challenges I faced with the previous design, but they also offered a fresh perspective and innovative solutions. Their ability to quickly grasp my vision and translate it into a practical and stylish design was truly impressive.
What sets AL-Haitham apart is their exceptional communication and willingness to go the extra mile. Despite being based in a different area, they demonstrated an in-depth knowledge of local building regulations, ensuring a smooth planning process. The entire project was completed within the agreed timeframe, and the quality of the work is outstanding.
I wholeheartedly recommend AL-Haitham to anyone seeking a professional, knowledgeable, and client-focused architect. They are a true asset to the industry.
Mohammed Elhalwagy








































































