^ what makes lot/"lupa" appreciate are factors outside it, usually.
Examples that will make a lot appreciate in value:
Tapos na subdivision it's in, with complete utilities & amenities
Site becomes more accessible -- like there's a new road, flyover, Slex exit --mga ganun
Proven flood-proof ... Tht's what happened here in Greenhills East... After Ondoy, prices almost doubled and kahit na mga dating hindi mabentang lots kasi tumbok, likod ng church, etc -- eh sold at prices nakakagulat (houses thereon sooo old, wala nang presyo sa negotiations mga ganun).
Re-zoning as when a village perimeter lot gets a commerial zoning puede na gamitin for business and/or tayuan ng condo
Change in building rules within a subdivision -ganito din happened here in Greenhills East. Dati, 1 house per lot. Now, puede na subivide a lot basta after subdividing minimum lot size is 600sqm. Now, those smaller cuts are sold at over double the lot prices 3 years ago...
BUT the same changes can cause your lot price to not appreciate... Depende sa pagka puesto mo
IMO, putting up a house will not make your lot/lupa value nga to appreciate; but a house and lot
package may be more marketable and give you better profit on your total investments. Kaya nga when you talk to brokers banatan ka nng computation for lot going rates in that area/village, tapos estimated
value of the house if constucted at present time. if appraisal for mortgage or credit line naman --
ganun din -- separate treatment for the lot and the house. You will notice in both instances na the
house will not affect the lot valuation nor pricing .... ..kahit na ginto mga pader mo.