House Extensions in Letchworth | Aldwick Building Company

Specialist House Extensions in Letchworth Garden City

Letchworth Garden City holds a unique place in British architectural history as the world's first Garden City, founded in 1903. The town features distinctive Arts and Crafts architecture, spacious garden suburbs, and a carefully planned layout that has influenced town planning worldwide. When extending a home in Letchworth, it's essential to work with builders who appreciate and respect this heritage.

At Aldwick Building Company, we have completed numerous projects in Letchworth and understand the specific requirements of building in this historic town. Whether you own a classic Garden City cottage, a 1930s semi-detached home, or a modern property, we have the expertise to design and build extensions that enhance your living space while respecting the character of your home and its surroundings.

Extension Services for Letchworth Homes

• Single-Storey Rear Extensions – Perfect for kitchen-diners and family rooms
• Double-Storey Extensions – Add bedrooms and bathrooms upstairs
• Garden Room Extensions – Light-filled spaces connecting to your garden
• Conservatory Replacements – Modern, insulated living spaces
• Orangeries – Elegant extensions with brick pillars and lantern roofs
• Garage Conversions – Transform unused garage space into living areas

Our Letchworth Garden City Extension Project

We're proud of our completed Letchworth Garden City extension and refurbishment project, which showcased our ability to work within the unique constraints of a Garden City property while delivering modern, functional living space.

This project involved re-modelling the ground floor of a Letchworth home to create a stunning new extension featuring roof lanterns that flood the space with natural light. A particular challenge was that our clients continued to live in the property during construction, so we implemented careful dust-proofing and temporary kitchen arrangements to minimize disruption.

Project highlights included:

• Custom extension with roof lanterns for natural light
• Premium sliding doors opening to the garden
• Full internal refurbishment throughout
• Bespoke kitchen installation
• New garden landscaping to complement the extension
• Dust-proof barriers allowing clients to remain in residence

View full Letchworth Garden City project details →

Why Letchworth Homeowners Choose Aldwick Building

Planning Permission in Letchworth

Many house extensions in Letchworth can be built under permitted development rights, avoiding the need for full planning permission. However, there are important considerations:

• Properties in Conservation Areas may have additional restrictions
• Listed buildings require specific consent for any alterations
• Article 4 Directions may remove permitted development rights in certain areas
• Building Regulations approval is always required for structural work

Our team can advise on the planning requirements for your specific property and guide you through the application process if needed. We have excellent relationships with North Hertfordshire District Council and understand their expectations for Garden City extensions.

Areas We Serve

We work throughout Letchworth Garden City and surrounding areas. While we don't have a physical office in Letchworth, our team is regularly working on projects across SG6 and North Hertfordshire. We can arrange site visits and consultations at your convenience.

Our base: Luton, Bedfordshire | Service area: Letchworth, North Hertfordshire & surrounding areas