Limewise is a small Worthing-based developer working on the deep retrofit of post-war and pre-war housing. We buy, we hold, we rent, we sell — and we use the same fabric-first approach on every project.
The UK has roughly 29 million homes. Most leak heat through poorly-insulated walls and roofs, draught around old windows and doors, and waste two-thirds of the energy they consume. Replacing them all is neither affordable nor desirable; the work is to upgrade what already stands.
We do this ourselves first. Limewise acquires properties — bungalows, terraces, the unfashionable middle of the market — and rebuilds them to a standard that will not need redoing. Some we sell. Some we keep and let. Either way, we live with the result.
A 1950s solid-masonry bungalow on the western edge of Worthing. Single-glazed, no wall insulation, end-of-life combi boiler, EPC E. Acquired May 2026. Whole-house retrofit assessment to PAS 2035 in progress.
Insulation, airtightness, ventilation — in that order — before any change of heating system. A heat pump on a leaky house is the wrong answer to the right question.
Lime, woodfibre, hemp — vapour-permeable materials that suit old buildings and don't trap moisture. We do not specify PIR boards or cement renders on solid-wall properties.
Every project starts with a whole-house assessment to PAS 2035. Energy use is modelled with PHPP or equivalent before specification, then verified by metering after completion.
We assume each retrofit serves the building until at least 2076. Specification, detailing and contractor selection reflect that horizon — not the cheapest tender.
For every project we publish what we did, what it cost, and how the building performs once occupied. If it didn't work, we say so.
Limewise develops its own projects. We also take on a small number of paid consultancy briefs each year, where our approach is useful to others:
We don't carry out EPC assessments, we don't install heat pumps, and we don't take referral fees from contractors or suppliers.
Limewise is the developer arm of CSQS Ltd, a quantity surveying practice founded in Worthing in 2020. CSQS is RICS-regulated and has worked on residential, mixed-use and commercial projects across the South East. Limewise was set up in 2026 to put the firm's retrofit advice into practice on properties it owns.
The practice is led by Evan Windels, MRICS.