
Trusted Extensions in Hitchin, Hertfordshire
Hitchin extensions by a local family team. Hertfordshire-wide, 26+ years on the tools.
Trusted Extensions in Hitchin, Hertfordshire
For extensions work in Hitchin and the surrounding Hertfordshire streets, what tends to matter most is matching the existing property — and that starts with knowing the local stock.
Hitchin is one of the prettier North Hertfordshire market towns — a strong Georgian and Victorian core, the lavender fields nearby and a clear demand for sympathetic, high-finish work.
Hitchin extensions for us are nearly always Conservation Area and Article 4 routes — matched brick, lime mortar and proper detailing on visible elevations are non-negotiable.



“Our rear extension is honestly the best part of the house. Done on time, no surprises.”
How Hitchin affects the extensions spec
Hitchin housing centres on Georgian and Victorian brick around the Market Place and Tilehouse Street, with substantial Edwardian and inter-war stock on the surrounding hills and modern infill on the outskirts. Chalk underlies most of Hitchin with clay-with-flints overlay — generally good bearing but variable, particularly close to the River Hiz where alluvial deposits soften the ground.
- Article 4 and Conservation Area applications run alongside your architect or planning consultant
- Foundation depth design on the chalk-and-flint ground, with deeper digs near the Hiz
- Matched brick, tile and rainwater detailing so a new extension reads as part of the original house
North Herts District Council protect the large Hitchin Conservation Area, and many central streets sit under Article 4 directions restricting permitted development.

Our extensions process for Hitchin
- 01Site survey
We meet you on site, look at the actual property and talk through what's realistic before drawings or planning go anywhere.
- 02Planning and Building Regs
We work alongside your architect on planning, Building Regs and party-wall awards — or recommend a trusted one.
- 03Foundations and shell
Trial pits, proper foundation depth, accurate setting out and a watertight shell before first fix begins.
- 04First and second fix
Electrics, plumbing, plaster and joinery brought through to a high finish — including matched external brick, tile and rainwater detailing.
- 05Sign-off and handover
Building Control sign-off, our own written guarantee, snagging cleared and a tidy site at handover.
What's included on Hitchin extensions jobs
- Single-storey rear and side extensions
- Double-storey and wrap-around extensions
- Kitchen, dining and family-room extensions
- Foundations, structural steel and load-bearing alterations
- Matched external brick, tile and rainwater detailing
- Full first and second fix, plaster and joinery
Typical Hitchin use cases
- Wrap-around extensions opening up the rear of the house
- Two-storey rear extensions for growing families
- Front porches and entrance extensions
- Garden-room style glazed extensions with structural steel
Materials and methods we use
Questions we hear from Hitchin clients
- Will you use lime mortar on a Hitchin Conservation Area job?
- Yes — pre-1919 Hitchin property almost always needs lime mortar, both for breathability and to meet planning expectations on visible elevations.
- Do you work on Tilehouse Street and the older Hitchin core?
- Yes — central Hitchin's older brick and timber-framed property is part of our normal coverage, with the appropriate consents in place.
- Do you cover Walsworth and Charlton?
- Yes — both are part of our regular Hitchin coverage.
- Do you handle planning applications in Hitchin?
- We work alongside your architect on the planning application and Building Regs in Hitchin — or recommend a trusted one if you don't have one yet.
- Will my Hitchin extension match the existing property?
- Matching brick, tile, rainwater detailing and pointing is part of what we do — particularly important on older Hertfordshire stock around SG4.
Hitchin and the surrounding Hertfordshire patch
Hitchin work for us is often period — matched-brick rear extensions, lime re-pointing, restored garden walls in original detailing, and high-finish driveways and landscaping on larger plots.
- Charlton
- Walsworth
- Westmill
- Ickleford edge
- Pirton edge
Working postcodes: SG4, SG5 · roughly 16 miles from our Bidwell yard.
Other services we offer in Hitchin
Looking for extensions outside Hitchin?
Quick recap — Hitchin extensions
Planning a Hitchin extension? Send us the plans and we'll come out and price the real job.
For a free local extensions estimate in Hitchin, ring us or drop us a message — we usually reply the same working day.
For more about how we work, see our main extensions page or browse all areas we cover.
Related extensions projects near Hitchin
Recent extensions builds we've completed across Bedfordshire — the same team and standards you'll get in Hitchin.
- Front Porch with Vaulted Lean-To RoofA new front porch and vaulted lean-to roof adding kerb appeal and 4 sq m of practical hallway space.
- Open-Plan Summer Room ExtensionAn additional open-plan summer room built for entertaining, designed to feel bright and connected to the garden all year round.
- Garage Extension — Music RoomExtension of the garage to create a separate room away from the house, purpose-built for music practice.
