Welwyn Garden City, Hertfordshire
Home Extensions in Welwyn Garden City
A home extension adds ground-floor or first-floor space to the rear or side of the house, and the right size depends on the plot and the rules for your area.
Local Specialists
Home Extensions in Welwyn Garden City
One of the two original garden cities, laid out in the 1920s with a distinctive neo-Georgian character. Welwyn Garden City was laid out in the 1920s and much of the original town is neo-Georgian, with houses designed as groups, so changes to the roofline are visible.
Garden city houses were designed as groups, so extensions need to respect the original design. Garden city homes were designed as groups with a consistent roofline, so how a new roof extension looks from the street matters, as well as how it works inside. We offer a free survey and a clear written quote from the start.
Planning and approvals for home extensions in Welwyn Garden City
Planning applications are decided by Welwyn Hatfield Borough Council. Parts of the original garden city area are also covered by a separate scheme of management, so check the rules for your road early. Many single-storey rear extensions can be built under permitted development within the depth and height limits, while side, two-storey and larger projects may need a planning application or a neighbour consultation.
We confirm which approvals apply to your Welwyn Garden City property at the survey, and we prepare and manage the applications for you.
What we check at your Welwyn Garden City survey
For home extensions that means looking at plot size, boundaries, drainage, existing foundations and the position of any openings in the existing wall.
How We Deliver Home Extensions in Welwyn Garden City
Design & Planning
We work with architects to produce detailed plans and manage all planning applications to your local authority.
Quality Structure
Deep strip or raft foundations, cavity wall construction, and structural steelwork where required.
Premium Finish
Bi-fold doors, lantern roofs, underfloor heating and full internal fit-out — everything to the highest standard.
Three simple steps
How to get a quote in Welwyn Garden City
Message us on WhatsApp
Tell us about your home and what you have in mind. Photos help, but are not essential.
Free survey
We arrange a visit to look at the space, talk through options and answer your questions.
Written quote
You receive a clear written quote setting out the work, with no obligation to go ahead.
Home Extensions in Welwyn Garden City: FAQs
Who decides planning applications for home extensions in Welwyn Garden City?
Planning applications are decided by Welwyn Hatfield Borough Council. Parts of the original garden city area are also covered by a separate scheme of management, so check the rules for your road early. Many single-storey rear extensions can be built under permitted development within the depth and height limits, while side, two-storey and larger projects may need a planning application or a neighbour consultation.
How long does a home extension take?
The time an extension takes depends on its size and complexity. Two-storey extensions take longer than single-storey. We give you a realistic programme with your quote.
Can I stay in my home during the build?
In most cases yes — we work hard to minimise disruption to your daily life throughout the build process.
Do you cover Welwyn Garden City and the surrounding area?
Yes. We work in Welwyn Garden City and nearby places including Hertford, Ware, Potters Bar, Hoddesdon. Message us on WhatsApp or use the quote form and we will arrange a free survey of your property.
Home Extensions Near Welwyn Garden City
Ready to Start Your Home Extensions in Welwyn Garden City?
Contact our team today for a free, no-obligation survey at your Welwyn Garden City property. Clear written quotes, no hidden extras.
Free quotes · No obligation · Essex & Hertfordshire