✍️ Written by James Doherty, FMBA-registered builder with 18 years in UK residential construction & extensions. Last updated: March 2026.

Your Trusted Builders in Marlow

Marlow is a picturesque riverside town in Buckinghamshire, nestled along the Thames and famous for its iconic suspension bridge. With average house prices around £900,000 in the SL7 postcode, Marlow attracts affluent homeowners who appreciate the town's blend of period properties, riverside homes, and modern developments.

At Doherty Builders, we have established a strong reputation in Marlow for delivering high-quality extensions, renovations, and new build projects. The town's character – from the historic High Street to the riverside developments – requires builders who understand how to work with period features while delivering modern functionality.

Whether you're looking to extend your Victorian terrace, convert a loft in a period property, or build a contemporary extension overlooking the Thames team brings the expertise and craftsmanship, our that Marlow homeowners expect. We understand the local planning requirements and work closely with Buckinghamshire Council to ensure your project meets all regulations.

From kitchen extensions creating open-plan living spaces to full house renovations that transform period properties into modern family homes, we handle projects of all sizes with the same attention to detail. Our team of skilled craftsmen ensures every aspect of your build is completed to the highest standards.

Why Marlow Homeowners Choose Doherty Builders

Marlow homeowners expect exceptional quality, and that's what we consistently deliver. Our reputation in the area has been built on meticulous attention to detail, transparent pricing, and outstanding customer service. We understand that Marlow's property market demands the highest standards from builders.

Every project in Marlow benefits from our team's expertise in working with period properties. Whether it's preserving original features while modernising internally, or adding sympathetic extensions that enhance the property's character, we have the skills and experience to exceed your expectations.

We are fully insured with comprehensive public liability and employer's liability coverage. All structural work is guaranteed, and we work alongside independent Building Control inspectors to ensure every project meets or exceeds UK Building Regulations. Our staged payment structure ensures you only pay for completed, signed-off work.

Common Questions

Common questions from Marlow homeowners about extensions and renovations.

In Marlow, a single-storey house extension typically costs between £60,000 and £90,000, while a two-storey extension ranges from £90,000 to £140,000. These prices reflect the premium nature of the area and the quality of finishes Marlow homeowners expect.
Many extensions in Marlow fall under Permitted Development rights. However, the town has conservation areas, and listed buildings require full planning permission from Buckinghamshire Council. We can advise on the best approach for your property.
A standard single-storey rear extension typically takes 10-14 weeks from breaking ground to final handover. Two-storey extensions or complex projects may take 16-24 weeks. We provide detailed timelines before work begins.
Absolutely. We have extensive experience working with Victorian and Edwardian properties throughout Marlow. We understand how to preserve period features while delivering modern functionality and can advise on sympathetic extensions.
Yes. We carry comprehensive public liability and employer's liability insurance. All structural work is guaranteed, and we work with independent Building Control inspectors to ensure compliance with all UK Building Regulations.

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