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South Yorkshire

Double-storey extension cost in Sheffield

Two-storey rear or side extensions adding kitchen/dining downstairs and a master bedroom or en-suite above — typically 40–60 m² of additional space.

Local context — Sheffield

Council
Sheffield City Council
Open planning portal →
Cost premium
-11% vs UK average (South Yorkshire labour rates, lowest of the major cities)
Typical extension price
A 25 m² single-storey rear extension in Sheffield typically runs £44,000-£68,000 (standard to premium, 2026). Stone-fronted Victorian terraces in Nether Edge/Sharrow run £42,000-£62,000.
Building Control
Sheffield Building Control is the council's in-house service; lead time 3-5 working days. Private Approved Inspectors are widely used in S7, S10 and S11.
Conservation & Article 4
Sheffield has 40+ conservation areas including Nether Edge, Sharrow Vale, Broomhill, Ranmoor and Endcliffe. Article 4 directions covering HMO use apply across most of S10 and S11 — relevant for landlord clients.
Local quirks that move the price
Steep west-Sheffield sites (S10, S11, S17) regularly add £5-12k for access scaffolding and split-level structural work. Coal Authority searches required across most of east and south Sheffield (S2, S5, S8, S9, S13). Local sandstone matching adds £70-120/m² to front-elevation works compared with brick.
High-demand areas in Sheffield
Nether EdgeEcclesallCrookesWalkleyBroomhill
Typical 50 m² project in Sheffield
£74,918
to
£120,780
Mid-range (premium spec): £97,751
standard
£74,918
premium
£97,751
luxury
£120,780
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Double-storey extension costs in Sheffield — FAQs

How much does a double-storey extension cost in Sheffield?

Double-storey extensions in Sheffield typically cost between £74,918 and £120,780 depending on size, specification and site conditions. A mid-range 50 m² project averages around £97,751.

How long will it take?

Most double-storey extensions take between 6 and 16 weeks on site, depending on scope, structural complexity and planning requirements in South Yorkshire.

Do I need planning permission?

Many double-storey extensions fall under permitted development, but conservation areas, listed buildings and larger projects in Sheffield can require a full planning application. Use the cost checker to see what applies to your address.

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Disclaimer: This is an industry-informed estimate for guidance only — not a fixed quote, valuation, survey or legal advice. Figures are based on regional averages and the details you provided. Site-specific factors (access, ground conditions, structural surprises, planning constraints) can materially change the cost. Always confirm with a site inspection, written quotes from qualified tradespeople, and supplier pricing before committing to work. Build Price IQ (trading under Services R Us Ltd) accepts no liability for any decisions, costs, losses or damages arising from the use of these estimates.