{"service":"party-wall-surveyors","currency":"GBP","is_estimate":true,"source":"Homeply cost model (party wall cost calculator)","typical":{"fee":{"low":700,"high":1200}},"params_used":{"works":"loft","adjoining_owners":1,"arrangement":"agreed"},"params_accepted":{"works":"loft|extension|basement","adjoining_owners":"1-3","arrangement":"agreed|separate"},"guide_url":"https://homeply.co.uk/party-wall-cost-calculator","quote_url":"https://homeply.co.uk/quote/party-wall-surveyors","notice":"Typical UK ranges, not quotes. Actual prices vary by job and firm - compare free quotes from verified professionals via the quote URL."}