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House Extension Design · Winchester, Hampshire

House Extension Designer Winchester

Fixed-fee planning drawings and building regulations for Winchester house extensions. Conservation area specialists. 98% approval rate. From £1,950 + VAT.

Winchester House Extension Services

Planning Drawings

Existing and proposed floor plans, elevations, site plan and design-and-access statement tailored to Winchester City Council's requirements.

Building Regulations

Complete structural and building regulations package for Winchester building control — foundations, beams, insulation, drainage and fire safety.

Conservation Area Expertise

Design-and-access statements, listed building consent applications, and heritage-sensitive design for Winchester's many historic properties.

98%
Planning approval rate
£1,950
Fixed fee from (+ VAT)
3–4 wks
Drawings turnaround
150+
Winchester area projects

Winchester House Extension FAQs

Winchester has a diverse housing stock — from Victorian terraces in the city centre to 1930s semi-detached in Stanmore and Weeke, modern detached properties in Kings Worthy and Colden Common, and rural cottages and farmhouses in surrounding villages. Rear single-storey kitchen extensions, two-storey side and rear additions, and loft conversions are all popular. Winchester's period properties also generate demand for sensitive conservation area extensions that require specialist design knowledge.

It depends on the extension type and location. Many single-storey rear extensions qualify under Permitted Development Rights without a formal application. However, Winchester City Council has extensive conservation areas covering the city centre, Winnall, and many surrounding villages, where all extensions require planning permission. Two-storey extensions, side extensions visible from the street, and extensions on listed buildings always need permission. We assess your PD rights during every complimentary consultation.

Hampshire Build's fixed design fees are: Pre-Build Package from £1,950 + VAT (planning drawings), and Premium Plus from £4,950 + VAT (full service). Build costs for your contractor typically run £1,800–£2,800 per m² in Winchester depending on specification. Conservation area and listed building work can increase build costs due to material requirements. Use our Extension Cost Calculator for a project-specific estimate.

Winchester City Council is one of Hampshire's most design-focused planning authorities. The city's historic character means applications are carefully assessed for impact on street scene, neighbouring amenity and the character of the area. Winchester officers pay close attention to materials, roof pitch, window proportions and massing. Our 98% planning approval rate at Winchester City Council reflects our understanding of what their officers are looking for.

Yes. Listed building consent is required for any works that affect the character of a listed building — including many internal alterations, not just extensions. We prepare listed building consent applications alongside planning applications for Winchester properties, working with Winchester City Council's historic buildings officers to agree an approach before submission.

Start Your Winchester House Extension

Book a complimentary consultation. We'll visit your Winchester property, assess feasibility and advise on the planning route — at no charge.

Winchester Location Page View Packages Cost Calculator