Construction Estimating in Hampshire
Professional construction estimating services across Hampshire — covering all towns. County-specific cost data, 24-hour turnaround, serving Southampton, Portsmouth, Winchester and beyond.
Construction Estimating Services in Hampshire
Hampshire is one of the UK's largest and most economically active counties — home to major cities like Southampton and Portsmouth, the historic cathedral city of Winchester, and a thriving commuter belt serving London. Our Hampshire-specific cost data reflects the county's diverse construction market, from premium Winchester conservation work to competitive Portsmouth residential projects.
Local Insight
Hampshire's construction costs are 5–15% above the UK national average, driven by strong South East demand, premium Winchester and New Forest conservation requirements, and the county's proximity to London's construction market.
Hampshire at a Glance
Our Services in Hampshire
Full construction estimating and consultancy services available across Hampshire county.
Hampshire Construction Cost Ranges — 2026
Indicative cost ranges for common construction projects in Hampshire. All figures are calibrated to local labour rates, material costs, and subcontractor pricing.
| Project Type | Cost Range |
|---|---|
| Single-Storey Extension (20m²) | £33,000 – £56,000 |
| Double-Storey Extension (40m²) | £62,000 – £108,000 |
| Loft Conversion (Dormer) | £38,000 – £65,000 |
| New Build (per m²) | £1,800 – £2,800/m² |
| New Forest Extension | £38,000 – £65,000 |
| Groundworks (per m²) | £120 – £220/m² |
These are indicative cost ranges based on our Hampshire cost database (updated quarterly). For a precise estimate tailored to your specific project, contact us.
Towns & Cities We Cover in Hampshire
We provide construction estimating services in all of the following locations across Hampshire county.
Ready to Get Your Hampshire Estimate?
Tell us your Hampshire project details. We'll provide a quote within 1 hour and a full detailed estimate within 24 hours — calibrated to Hampshire construction costs.
Useful Guides for Your Hampshire Project
Construction Estimating Questions — Hampshire
Real questions from contractors, developers, and homeowners in Hampshire — answered with locally-calibrated cost data.
House extension costs in Hampshire vary by location. In Winchester and the commuter belt, a single-storey 20m² rear extension typically costs £38,000–£56,000. In Southampton, Portsmouth, and the more competitive parts of the county, the same extension costs £33,000–£48,000. New Forest conservation area restrictions can add 10–20% to costs. These figures include standard foundations, brick/block construction, pitched roof, mid-range windows and doors, basic plumbing and electrics, and plastering.
Loft conversions in Hampshire range from £26,000 for a basic Velux conversion to £65,000+ for a full dormer with en-suite. A standard dormer loft conversion with double bedroom and en-suite typically costs £38,000–£52,000, with Winchester and commuter belt locations at the higher end. Southampton and Portsmouth offer more competitive rates. Our estimates include structural work, insulation, staircase, windows, plumbing, and electrics.
Yes — we cover the entire county of Hampshire, from the major cities of Southampton and Portsmouth to Winchester, Basingstoke, Fareham, Gosport, Andover, Aldershot, Fleet, and all smaller towns and villages. Our cost data is calibrated to your specific Hampshire location. We understand the cost variations between premium Winchester, coastal Portsmouth, commuter belt towns, and New Forest conservation areas.
We provide a quote within 1 hour and a full detailed estimate within 24 hours. Our Hampshire estimates use county-specific cost data updated quarterly. Send us your project type, size, postcode, and any drawings or specifications. We cover extensions, loft conversions, new builds, and commercial projects throughout Hampshire.
Yes — significantly. Hampshire has numerous conservation areas, particularly in Winchester, the New Forest, and many historic market towns. Conservation area requirements — including specified materials, design constraints, and planning conditions — typically add 10–20% to standard construction costs. Our Hampshire estimates account for these requirements when you tell us your specific location.
Need a precise figure for your Hampshire project?
The ranges above are indicative. For an accurate estimate calibrated to your specific Hampshire project, location, and specification — get in touch.
Serving Hampshire Since 1987
With 38+ years of UK construction estimating experience, we bring deep regional knowledge to every Hampshire project. From residential extensions to commercial developments — we deliver accurate, reliable estimates, fast.
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